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Publisher: Elsevier   (Total: 3160 journals)

 A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  

        1 2 3 4 5 6 7 8 | Last   [Sort by number of followers]   [Restore default list]

Showing 1 - 200 of 3160 Journals sorted alphabetically
Academic Pediatrics     Hybrid Journal   (Followers: 35, SJR: 1.655, CiteScore: 2)
Academic Radiology     Hybrid Journal   (Followers: 24, SJR: 1.015, CiteScore: 2)
Accident Analysis & Prevention     Partially Free   (Followers: 96, SJR: 1.462, CiteScore: 3)
Accounting Forum     Hybrid Journal   (Followers: 27, SJR: 0.932, CiteScore: 2)
Accounting, Organizations and Society     Hybrid Journal   (Followers: 37, SJR: 1.771, CiteScore: 3)
Achievements in the Life Sciences     Open Access   (Followers: 5)
Acta Anaesthesiologica Taiwanica     Open Access   (Followers: 7)
Acta Astronautica     Hybrid Journal   (Followers: 421, SJR: 0.758, CiteScore: 2)
Acta Automatica Sinica     Full-text available via subscription   (Followers: 2)
Acta Biomaterialia     Hybrid Journal   (Followers: 28, SJR: 1.967, CiteScore: 7)
Acta Colombiana de Cuidado Intensivo     Full-text available via subscription   (Followers: 2)
Acta de Investigación Psicológica     Open Access   (Followers: 3)
Acta Ecologica Sinica     Open Access   (Followers: 10, SJR: 0.18, CiteScore: 1)
Acta Haematologica Polonica     Free   (Followers: 1, SJR: 0.128, CiteScore: 0)
Acta Histochemica     Hybrid Journal   (Followers: 3, SJR: 0.661, CiteScore: 2)
Acta Materialia     Hybrid Journal   (Followers: 276, SJR: 3.263, CiteScore: 6)
Acta Mathematica Scientia     Full-text available via subscription   (Followers: 5, SJR: 0.504, CiteScore: 1)
Acta Mechanica Solida Sinica     Full-text available via subscription   (Followers: 9, SJR: 0.542, CiteScore: 1)
Acta Oecologica     Hybrid Journal   (Followers: 12, SJR: 0.834, CiteScore: 2)
Acta Otorrinolaringologica (English Edition)     Full-text available via subscription  
Acta Otorrinolaringológica Española     Full-text available via subscription   (Followers: 3, SJR: 0.307, CiteScore: 0)
Acta Pharmaceutica Sinica B     Open Access   (Followers: 1, SJR: 1.793, CiteScore: 6)
Acta Poética     Open Access   (Followers: 4, SJR: 0.101, CiteScore: 0)
Acta Psychologica     Hybrid Journal   (Followers: 27, SJR: 1.331, CiteScore: 2)
Acta Sociológica     Open Access   (Followers: 1)
Acta Tropica     Hybrid Journal   (Followers: 6, SJR: 1.052, CiteScore: 2)
Acta Urológica Portuguesa     Open Access  
Actas Dermo-Sifiliograficas     Full-text available via subscription   (Followers: 3, SJR: 0.374, CiteScore: 1)
Actas Dermo-Sifiliográficas (English Edition)     Full-text available via subscription   (Followers: 2)
Actas Urológicas Españolas     Full-text available via subscription   (Followers: 3, SJR: 0.344, CiteScore: 1)
Actas Urológicas Españolas (English Edition)     Full-text available via subscription   (Followers: 1)
Actualites Pharmaceutiques     Full-text available via subscription   (Followers: 6, SJR: 0.19, CiteScore: 0)
Actualites Pharmaceutiques Hospitalieres     Full-text available via subscription   (Followers: 3)
Acupuncture and Related Therapies     Hybrid Journal   (Followers: 8)
Acute Pain     Full-text available via subscription   (Followers: 14, SJR: 2.671, CiteScore: 5)
Ad Hoc Networks     Hybrid Journal   (Followers: 11, SJR: 0.53, CiteScore: 4)
Addictive Behaviors     Hybrid Journal   (Followers: 17, SJR: 1.29, CiteScore: 3)
Addictive Behaviors Reports     Open Access   (Followers: 8, SJR: 0.755, CiteScore: 2)
Additive Manufacturing     Hybrid Journal   (Followers: 11, SJR: 2.611, CiteScore: 8)
Additives for Polymers     Full-text available via subscription   (Followers: 23)
Advanced Drug Delivery Reviews     Hybrid Journal   (Followers: 167, SJR: 4.09, CiteScore: 13)
Advanced Engineering Informatics     Hybrid Journal   (Followers: 12, SJR: 1.167, CiteScore: 4)
Advanced Powder Technology     Hybrid Journal   (Followers: 17, SJR: 0.694, CiteScore: 3)
Advances in Accounting     Hybrid Journal   (Followers: 8, SJR: 0.277, CiteScore: 1)
Advances in Agronomy     Full-text available via subscription   (Followers: 15, SJR: 2.384, CiteScore: 5)
Advances in Anesthesia     Full-text available via subscription   (Followers: 28, SJR: 0.126, CiteScore: 0)
Advances in Antiviral Drug Design     Full-text available via subscription   (Followers: 2)
Advances in Applied Mathematics     Full-text available via subscription   (Followers: 10, SJR: 0.992, CiteScore: 1)
Advances in Applied Mechanics     Full-text available via subscription   (Followers: 11, SJR: 1.551, CiteScore: 4)
Advances in Applied Microbiology     Full-text available via subscription   (Followers: 24, SJR: 2.089, CiteScore: 5)
Advances In Atomic, Molecular, and Optical Physics     Full-text available via subscription   (Followers: 14, SJR: 0.572, CiteScore: 2)
Advances in Biological Regulation     Hybrid Journal   (Followers: 4, SJR: 2.61, CiteScore: 7)
Advances in Botanical Research     Full-text available via subscription   (Followers: 2, SJR: 0.686, CiteScore: 2)
Advances in Cancer Research     Full-text available via subscription   (Followers: 33, SJR: 3.043, CiteScore: 6)
Advances in Carbohydrate Chemistry and Biochemistry     Full-text available via subscription   (Followers: 9, SJR: 1.453, CiteScore: 2)
Advances in Catalysis     Full-text available via subscription   (Followers: 5, SJR: 1.992, CiteScore: 5)
Advances in Cell Aging and Gerontology     Full-text available via subscription   (Followers: 4)
Advances in Cellular and Molecular Biology of Membranes and Organelles     Full-text available via subscription   (Followers: 13)
Advances in Chemical Engineering     Full-text available via subscription   (Followers: 28, SJR: 0.156, CiteScore: 1)
Advances in Child Development and Behavior     Full-text available via subscription   (Followers: 10, SJR: 0.713, CiteScore: 1)
Advances in Chronic Kidney Disease     Full-text available via subscription   (Followers: 10, SJR: 1.316, CiteScore: 2)
Advances in Clinical Chemistry     Full-text available via subscription   (Followers: 26, SJR: 1.562, CiteScore: 3)
Advances in Colloid and Interface Science     Full-text available via subscription   (Followers: 20, SJR: 1.977, CiteScore: 8)
Advances in Computers     Full-text available via subscription   (Followers: 14, SJR: 0.205, CiteScore: 1)
Advances in Dermatology     Full-text available via subscription   (Followers: 15)
Advances in Developmental Biology     Full-text available via subscription   (Followers: 12)
Advances in Digestive Medicine     Open Access   (Followers: 9)
Advances in DNA Sequence-Specific Agents     Full-text available via subscription   (Followers: 7)
Advances in Drug Research     Full-text available via subscription   (Followers: 25)
Advances in Ecological Research     Full-text available via subscription   (Followers: 44, SJR: 2.524, CiteScore: 4)
Advances in Engineering Software     Hybrid Journal   (Followers: 29, SJR: 1.159, CiteScore: 4)
Advances in Experimental Biology     Full-text available via subscription   (Followers: 8)
Advances in Experimental Social Psychology     Full-text available via subscription   (Followers: 46, SJR: 5.39, CiteScore: 8)
Advances in Exploration Geophysics     Full-text available via subscription   (Followers: 1)
Advances in Fluorine Science     Full-text available via subscription   (Followers: 9)
Advances in Food and Nutrition Research     Full-text available via subscription   (Followers: 60, SJR: 0.591, CiteScore: 2)
Advances in Fuel Cells     Full-text available via subscription   (Followers: 17)
Advances in Genetics     Full-text available via subscription   (Followers: 19, SJR: 1.354, CiteScore: 4)
Advances in Genome Biology     Full-text available via subscription   (Followers: 10, SJR: 12.74, CiteScore: 13)
Advances in Geophysics     Full-text available via subscription   (Followers: 6, SJR: 1.193, CiteScore: 3)
Advances in Heat Transfer     Full-text available via subscription   (Followers: 24, SJR: 0.368, CiteScore: 1)
Advances in Heterocyclic Chemistry     Full-text available via subscription   (Followers: 12, SJR: 0.749, CiteScore: 3)
Advances in Human Factors/Ergonomics     Full-text available via subscription   (Followers: 23)
Advances in Imaging and Electron Physics     Full-text available via subscription   (Followers: 2, SJR: 0.193, CiteScore: 0)
Advances in Immunology     Full-text available via subscription   (Followers: 36, SJR: 4.433, CiteScore: 6)
Advances in Inorganic Chemistry     Full-text available via subscription   (Followers: 10, SJR: 1.163, CiteScore: 2)
Advances in Insect Physiology     Full-text available via subscription   (Followers: 2, SJR: 1.938, CiteScore: 3)
Advances in Integrative Medicine     Hybrid Journal   (Followers: 6, SJR: 0.176, CiteScore: 0)
Advances in Intl. Accounting     Full-text available via subscription   (Followers: 3)
Advances in Life Course Research     Hybrid Journal   (Followers: 8, SJR: 0.682, CiteScore: 2)
Advances in Lipobiology     Full-text available via subscription   (Followers: 1)
Advances in Magnetic and Optical Resonance     Full-text available via subscription   (Followers: 8)
Advances in Marine Biology     Full-text available via subscription   (Followers: 18, SJR: 0.88, CiteScore: 2)
Advances in Mathematics     Full-text available via subscription   (Followers: 11, SJR: 3.027, CiteScore: 2)
Advances in Medical Sciences     Hybrid Journal   (Followers: 7, SJR: 0.694, CiteScore: 2)
Advances in Medicinal Chemistry     Full-text available via subscription   (Followers: 5)
Advances in Microbial Physiology     Full-text available via subscription   (Followers: 4, SJR: 1.158, CiteScore: 3)
Advances in Molecular and Cell Biology     Full-text available via subscription   (Followers: 23)
Advances in Molecular and Cellular Endocrinology     Full-text available via subscription   (Followers: 8)
Advances in Molecular Toxicology     Full-text available via subscription   (Followers: 7, SJR: 0.182, CiteScore: 0)
Advances in Nanoporous Materials     Full-text available via subscription   (Followers: 4)
Advances in Oncobiology     Full-text available via subscription   (Followers: 2)
Advances in Organ Biology     Full-text available via subscription   (Followers: 2)
Advances in Organometallic Chemistry     Full-text available via subscription   (Followers: 17, SJR: 1.875, CiteScore: 4)
Advances in Parallel Computing     Full-text available via subscription   (Followers: 7, SJR: 0.174, CiteScore: 0)
Advances in Parasitology     Full-text available via subscription   (Followers: 5, SJR: 1.579, CiteScore: 4)
Advances in Pediatrics     Full-text available via subscription   (Followers: 25, SJR: 0.461, CiteScore: 1)
Advances in Pharmaceutical Sciences     Full-text available via subscription   (Followers: 12)
Advances in Pharmacology     Full-text available via subscription   (Followers: 16, SJR: 1.536, CiteScore: 3)
Advances in Physical Organic Chemistry     Full-text available via subscription   (Followers: 8, SJR: 0.574, CiteScore: 1)
Advances in Phytomedicine     Full-text available via subscription  
Advances in Planar Lipid Bilayers and Liposomes     Full-text available via subscription   (Followers: 3, SJR: 0.109, CiteScore: 1)
Advances in Plant Biochemistry and Molecular Biology     Full-text available via subscription   (Followers: 10)
Advances in Plant Pathology     Full-text available via subscription   (Followers: 5)
Advances in Porous Media     Full-text available via subscription   (Followers: 5)
Advances in Protein Chemistry     Full-text available via subscription   (Followers: 19)
Advances in Protein Chemistry and Structural Biology     Full-text available via subscription   (Followers: 20, SJR: 0.791, CiteScore: 2)
Advances in Psychology     Full-text available via subscription   (Followers: 65)
Advances in Quantum Chemistry     Full-text available via subscription   (Followers: 6, SJR: 0.371, CiteScore: 1)
Advances in Radiation Oncology     Open Access   (Followers: 1, SJR: 0.263, CiteScore: 1)
Advances in Small Animal Medicine and Surgery     Hybrid Journal   (Followers: 3, SJR: 0.101, CiteScore: 0)
Advances in Space Biology and Medicine     Full-text available via subscription   (Followers: 6)
Advances in Space Research     Full-text available via subscription   (Followers: 403, SJR: 0.569, CiteScore: 2)
Advances in Structural Biology     Full-text available via subscription   (Followers: 5)
Advances in Surgery     Full-text available via subscription   (Followers: 12, SJR: 0.555, CiteScore: 2)
Advances in the Study of Behavior     Full-text available via subscription   (Followers: 34, SJR: 2.208, CiteScore: 4)
Advances in Veterinary Medicine     Full-text available via subscription   (Followers: 18)
Advances in Veterinary Science and Comparative Medicine     Full-text available via subscription   (Followers: 14)
Advances in Virus Research     Full-text available via subscription   (Followers: 5, SJR: 2.262, CiteScore: 5)
Advances in Water Resources     Hybrid Journal   (Followers: 48, SJR: 1.551, CiteScore: 3)
Aeolian Research     Hybrid Journal   (Followers: 6, SJR: 1.117, CiteScore: 3)
Aerospace Science and Technology     Hybrid Journal   (Followers: 359, SJR: 0.796, CiteScore: 3)
AEU - Intl. J. of Electronics and Communications     Hybrid Journal   (Followers: 8, SJR: 0.42, CiteScore: 2)
African J. of Emergency Medicine     Open Access   (Followers: 6, SJR: 0.296, CiteScore: 0)
Ageing Research Reviews     Hybrid Journal   (Followers: 11, SJR: 3.671, CiteScore: 9)
Aggression and Violent Behavior     Hybrid Journal   (Followers: 464, SJR: 1.238, CiteScore: 3)
Agri Gene     Hybrid Journal   (Followers: 1, SJR: 0.13, CiteScore: 0)
Agricultural and Forest Meteorology     Hybrid Journal   (Followers: 17, SJR: 1.818, CiteScore: 5)
Agricultural Systems     Hybrid Journal   (Followers: 31, SJR: 1.156, CiteScore: 4)
Agricultural Water Management     Hybrid Journal   (Followers: 42, SJR: 1.272, CiteScore: 3)
Agriculture and Agricultural Science Procedia     Open Access   (Followers: 4)
Agriculture and Natural Resources     Open Access   (Followers: 3)
Agriculture, Ecosystems & Environment     Hybrid Journal   (Followers: 57, SJR: 1.747, CiteScore: 4)
Ain Shams Engineering J.     Open Access   (Followers: 5, SJR: 0.589, CiteScore: 3)
Air Medical J.     Hybrid Journal   (Followers: 6, SJR: 0.26, CiteScore: 0)
AKCE Intl. J. of Graphs and Combinatorics     Open Access   (SJR: 0.19, CiteScore: 0)
Alcohol     Hybrid Journal   (Followers: 12, SJR: 1.153, CiteScore: 3)
Alcoholism and Drug Addiction     Open Access   (Followers: 11)
Alergologia Polska : Polish J. of Allergology     Full-text available via subscription   (Followers: 1)
Alexandria Engineering J.     Open Access   (Followers: 1, SJR: 0.604, CiteScore: 3)
Alexandria J. of Medicine     Open Access   (Followers: 1, SJR: 0.191, CiteScore: 1)
Algal Research     Partially Free   (Followers: 10, SJR: 1.142, CiteScore: 4)
Alkaloids: Chemical and Biological Perspectives     Full-text available via subscription   (Followers: 2)
Allergologia et Immunopathologia     Full-text available via subscription   (Followers: 1, SJR: 0.504, CiteScore: 1)
Allergology Intl.     Open Access   (Followers: 5, SJR: 1.148, CiteScore: 2)
Alpha Omegan     Full-text available via subscription   (SJR: 3.521, CiteScore: 6)
ALTER - European J. of Disability Research / Revue Européenne de Recherche sur le Handicap     Full-text available via subscription   (Followers: 10, SJR: 0.201, CiteScore: 1)
Alzheimer's & Dementia     Hybrid Journal   (Followers: 52, SJR: 4.66, CiteScore: 10)
Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring     Open Access   (Followers: 4, SJR: 1.796, CiteScore: 4)
Alzheimer's & Dementia: Translational Research & Clinical Interventions     Open Access   (Followers: 4, SJR: 1.108, CiteScore: 3)
Ambulatory Pediatrics     Hybrid Journal   (Followers: 6)
American Heart J.     Hybrid Journal   (Followers: 56, SJR: 3.267, CiteScore: 4)
American J. of Cardiology     Hybrid Journal   (Followers: 59, SJR: 1.93, CiteScore: 3)
American J. of Emergency Medicine     Hybrid Journal   (Followers: 44, SJR: 0.604, CiteScore: 1)
American J. of Geriatric Pharmacotherapy     Full-text available via subscription   (Followers: 11)
American J. of Geriatric Psychiatry     Hybrid Journal   (Followers: 13, SJR: 1.524, CiteScore: 3)
American J. of Human Genetics     Hybrid Journal   (Followers: 34, SJR: 7.45, CiteScore: 8)
American J. of Infection Control     Hybrid Journal   (Followers: 28, SJR: 1.062, CiteScore: 2)
American J. of Kidney Diseases     Hybrid Journal   (Followers: 35, SJR: 2.973, CiteScore: 4)
American J. of Medicine     Hybrid Journal   (Followers: 48)
American J. of Medicine Supplements     Full-text available via subscription   (Followers: 3, SJR: 1.967, CiteScore: 2)
American J. of Obstetrics and Gynecology     Hybrid Journal   (Followers: 225, SJR: 2.7, CiteScore: 4)
American J. of Ophthalmology     Hybrid Journal   (Followers: 66, SJR: 3.184, CiteScore: 4)
American J. of Ophthalmology Case Reports     Open Access   (Followers: 5, SJR: 0.265, CiteScore: 0)
American J. of Orthodontics and Dentofacial Orthopedics     Full-text available via subscription   (Followers: 6, SJR: 1.289, CiteScore: 1)
American J. of Otolaryngology     Hybrid Journal   (Followers: 25, SJR: 0.59, CiteScore: 1)
American J. of Pathology     Hybrid Journal   (Followers: 28, SJR: 2.139, CiteScore: 4)
American J. of Preventive Medicine     Hybrid Journal   (Followers: 29, SJR: 2.164, CiteScore: 4)
American J. of Surgery     Hybrid Journal   (Followers: 38, SJR: 1.141, CiteScore: 2)
American J. of the Medical Sciences     Hybrid Journal   (Followers: 12, SJR: 0.767, CiteScore: 1)
Ampersand : An Intl. J. of General and Applied Linguistics     Open Access   (Followers: 7)
Anaerobe     Hybrid Journal   (Followers: 4, SJR: 1.144, CiteScore: 3)
Anaesthesia & Intensive Care Medicine     Full-text available via subscription   (Followers: 63, SJR: 0.138, CiteScore: 0)
Anaesthesia Critical Care & Pain Medicine     Full-text available via subscription   (Followers: 19, SJR: 0.411, CiteScore: 1)
Anales de Cirugia Vascular     Full-text available via subscription   (Followers: 1)
Anales de Pediatría     Full-text available via subscription   (Followers: 3, SJR: 0.277, CiteScore: 0)
Anales de Pediatría (English Edition)     Full-text available via subscription  
Anales de Pediatría Continuada     Full-text available via subscription  
Analytic Methods in Accident Research     Hybrid Journal   (Followers: 5, SJR: 4.849, CiteScore: 10)
Analytica Chimica Acta     Hybrid Journal   (Followers: 43, SJR: 1.512, CiteScore: 5)
Analytical Biochemistry     Hybrid Journal   (Followers: 188, SJR: 0.633, CiteScore: 2)
Analytical Chemistry Research     Open Access   (Followers: 12, SJR: 0.411, CiteScore: 2)
Analytical Spectroscopy Library     Full-text available via subscription   (Followers: 13)
Anesthésie & Réanimation     Full-text available via subscription   (Followers: 2)
Anesthesiology Clinics     Full-text available via subscription   (Followers: 23, SJR: 0.683, CiteScore: 2)
Angiología     Full-text available via subscription   (SJR: 0.121, CiteScore: 0)
Angiologia e Cirurgia Vascular     Open Access   (Followers: 1, SJR: 0.111, CiteScore: 0)
Animal Behaviour     Hybrid Journal   (Followers: 204, SJR: 1.58, CiteScore: 3)
Animal Feed Science and Technology     Hybrid Journal   (Followers: 5, SJR: 0.937, CiteScore: 2)
Animal Reproduction Science     Hybrid Journal   (Followers: 7, SJR: 0.704, CiteScore: 2)

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Journal Cover
Agriculture and Natural Resources
Number of Followers: 3  

  This is an Open Access Journal Open Access journal
ISSN (Online) 2452-316X
Published by Elsevier Homepage  [3160 journals]
  • Characterization of phytochemical profile and phytotoxic activity of
           Mimosa pigra L

    • Abstract: Publication date: Available online 4 July 2018Source: Agriculture and Natural ResourcesAuthor(s): Intira Koodkaew, Cholthicha Senaphan, Natchana Sengseang, Srisom Suwanwong The search for new biological agents produced by plants represents an alternative strategy in sustainable agriculture. The phytochemical profile of Mimosa pigra L. was investigated and the phytotoxic potential was assessed. Phytochemical analyses revealed the presence of flavonoids, tannins, phlobatannins, alkaloids and saponins in the methanolic extract of M. pigra (mimosa extract). The contents of both total phenolic compounds and flavonoids increased in a similar manner with increases in the mimosa extract concentrations. The phytotoxicity of the extract was evaluated on seedling growth and on some physiological processes in lettuce (Lactuca sativa L.) and popping pod (Ruellia tuberosa L.). Root and shoot growths were inhibited by mimosa extract in a concentration-dependent manner. Mimosa extract significantly inhibited mitosis resulting in root growth retardation. Moreover, mimosa extract caused cell death and induced lipid peroxidation in both plants. Therefore, the primary action of mimosa extract on seedling growth inhibition was related to the alteration in mitosis, loss in cell viability and trigger lipid peroxidation in affected tissues. Phytotoxicity was due to the presence of several secondary metabolites in the extract. Consequently, the mimosa extract could be considered as a source of metabolites to be used as alternatives for biological weed control.
       
  • Effects of acute gamma irradiation on in vitro culture of Exacum affine
           Balf.f. ex Regel

    • Abstract: Publication date: Available online 4 July 2018Source: Agriculture and Natural ResourcesAuthor(s): Mayuree Limtiyayotin, Chutiphorn Tosri, Natnichaphu Sukin, Peeranuch Jompuk Exacam affine Balf.f. ex Regel (Persian Violet) is an ornamental plant with small, purple flowers having yellow pollen in their center and it is mostly cultivated as a houseplant. The effect of acute gamma irradiation on in vitro cultures of E. affine was studied by treatment with gamma radiation using a Mark I Gamma Irradiator at the Nuclear Technology Research Center, Kasetsart University, Thailand with a Cesium-137 source at doses of 0, 10, 20, 30, 40, 50 and 60 Gy and a dose rate of 3.74 Gy/min. After irradiation, subcultures were grown on new Murashige and Skoog (MS) medium; then, after 60 d, the numbers of new branches on surviving plantlets were counted. Samples were subsequently subcultured to new MS medium for morphological study. The median lethal dose was 45 Gy and the 50% decreasing growth rate was 32 Gy. Some variations were observed in irradiated samples in M1V2, such as changes in the number of petals in a flower (four and six petals), flower color (light purple, white), smaller leaves, curled-shaped leaves, variegated leaves, lighter-green leaves and shorter internodes than the control.
       
  • Pre-harvest drought stress treatment improves antioxidant activity and
           sugar accumulation of sugar apple at harvest and during storage

    • Abstract: Publication date: Available online 4 July 2018Source: Agriculture and Natural ResourcesAuthor(s): Laddawan Kowitcharoen, Chalermchai Wongs-Aree, Sutthiwal Setha, Ruangsak Komkhuntod, Satoru Kondo, Varit Srilaong Physico-chemical and quality changes in 72 sugar apple (Annona squamosa Linn.) fruits subjected to pre-harvest drought stress were analyzed at harvest and during storage at 10ºC or 15ºC, with 90–95% relative humidity. At harvest, the ascorbic acid, sugar and endogenous abscisic acid concentrations increased while the concentration of the substrate indicating a 50% loss in 2,2-diphenyl-2-picrylhydrazyl scavenging activity (DPPH EC50) decreased in fruit from drought-treated trees compared with fruit from well-watered trees (control). The fresh weight loss of fruit stored at 15ºC was higher than at 10ºC, with no significant effect of drought treatment. In contrast, fruit firmness was reduced by drought treatment compared with the control during storage at both temperatures. Respiration, ethylene production and the endogenous abscisic acid and total sugar concentrations were higher in fruit from the drought-treated trees kept at 15ºC. The total ascorbic acid concentration was higher in fruit from drought-stressed trees kept at 10ºC compared with other treatments. This was concomitant with the DPPH EC50 value, which was lowest in fruit from drought-stressed trees stored at 10ºC. These results implied that pre-harvest drought stress treatment activated antioxidant activity and increased sugar concentration in sugar apple fruit. In addition, pre-harvest drought stress hastened fruit ripening. Thus, based on the results, storage of sugar apple fruit at 10ºC is recommended as this induces antioxidant activity which delays chilling injury for 8 d.
       
  • Molecular phylogeny and postharvest morphology of petals in two major
           Nelumbo nucifera cultivars in Thailand

    • Abstract: Publication date: Available online 25 June 2018Source: Agriculture and Natural ResourcesAuthor(s): Nurainee Salaemae, Seiji Takeda, Nakao Kubo, Samak Kaewsuksaeng Nelumbo nucifera is a symbolic flower of Buddhism and widely used for decoration in Asia. In most cases its buds are used as cut-flowers, which usually do not open and the outer petals turn black, leading to loss of visual quality and thus decreasing their economic value in markets. In Thailand, two major cultivars, Sattabongkot and Saddhabutra, are used and exported to foreign countries. To investigate the difference between these two cultivars, their molecular phylogeny and postharvest morphology were examined. Using 25 simple sequence repeat (SSR) markers, the cultivar Saddhabutra was very close to the cultivar Satabuto. These results showed a high bootstrap (BS) value of 96%. In contrast, lotus cultivars in Thailand including Sattabongkot and Saddhabutra, showed a BS value of 90%. Saddhabutra and Satabuto are classified in the same group with high similarity, whereas Sattabongkot shows relatively lower similarity. Petal blackening started earlier in Saddhabutra than Sattabongkot, indicating a vase-life difference among cultivars, with Sattabongkot and Saddhabutra having a vase life of 72 and 54 hr, respectively. The epidermal cells of normal petals of Sattabongkot and Saddhabutra showed freshness and a round shape with turgid cells. The petal blackening was accompanied with a reduction of the area and perimeter in both cultivars. Sattabongkot had fewer stomata than Saddhabutra. The study provided a molecular classification of the Thailand lotus cultivars and provides a useful technique for the quantification of the postharvest quality of lotus cultivars.
       
  • Hoary basil seed mucilage as fat replacer and its effect on quality
           characteristics of chicken meat model

    • Abstract: Publication date: Available online 21 June 2018Source: Agriculture and Natural ResourcesAuthor(s): Ekkarach Saengphol, Tantawan Pirak The effect of chicken breast meat source and main ingredients (salt, pork back fat (BF) and hoary basil mucilage (HBM)) on sensory perception and quality characteristic of meat products was investigated. Three different meat sources were selected and assigned as Brand A, B and C. Brand C had highest protein content (26.38%) and extracted salt soluble protein content (7.54%), which indicated the nutritional and quality of meat. This sample was used for investigating the effect of salt (1% and 2%) and BF to HBM ratio (100:0 to 0:100) on meat product model properties. The significant effect of these factors was detected (p < 0.05). The model with 2% salt without HBM possessed the gels with superior texture and sensory properties; however, HBM was able to substitute as BF replacer at 80% (2% salt) without any change of sensory perception from 100% BF model.
       
  • Effect of pre-germination at varying stages of embryonic growth length on
           chemical composition and protein profile of Thai rice (Oryza sativa L.)

    • Abstract: Publication date: Available online 5 June 2018Source: Agriculture and Natural ResourcesAuthor(s): Warunee Kupkanchanakul, Motoni Kadowaki, Masatoshi Kubota, Onanong Naivikul The effect of pre-germination at varying stages of embryonic growth length (EGL) (0.5–7 mm, for 30–56 h of pre-germination time) on the chemical composition and protein profiles were investigated in three different Thai rice cultivars—SPT1 (waxy), PTT1 (low amylose), and PNL2 (high amylose). Pre-germination at 0.5–1 mm of EGL (first-stage) of all rice led to a significant change in most of the total starch, crude protein, and crude fat contents except in the crude protein content of PNL2 and the crude fat content of SPT1, which significantly changed at 3–7 mm of EGL (malted-stage) and at 2–3 mm of EGL (third-stage), respectively. Analysis of protein profiles from all rice samples indicated that glutelin molecules existed in subunits linked by disulfide bonds. Pre-germination to the second-stage of SPT1 and PTT1, and to the first-stage of PNL2 caused the cleavage of proglutelin (∼51.6 kDa) into acidic-glutelin (∼31.9 kDa) and basic-glutelin (∼17.8 kDa) and also increased the relative concentration of 13 kDa prolamins. Pre-germination of these three rice cultivars at 30 °C for 32–48 h clearly indicated the function as bio-modification of rice proteins, particularly in the reduction of glutelin disulfide bonds.
       
  • Genetic structure of teak beehole borer, Xyleutes ceramicus (Lepidoptera:
           Cossidae), in northern Thailand

    • Abstract: Publication date: Available online 5 June 2018Source: Agriculture and Natural ResourcesAuthor(s): Atikan Panyamang, Orawan Duangpakdee, Atsalek Rattanawannee The teak beehole borer (Xyleutes ceramicus Walker) is one of the most serious insect pests of teak (Tectona grandis L.f.) in both natural forests and plantations in Thailand, especially in the northern part of the country. Larvae of X. ceramicus infest a living teak tree by burrowing a long tunnel in the trunk, which reduces the quality and value of the marketable timber. To determine the genetic structure of the species, the sequences were examined of two mitochondrial genes (COI and 16S rRNA) and one nuclear gene (EF1–alpha) of 41 individuals collected from 14 teak plantation sites in northern Thailand. The results of the sequencing analysis indicated the presence of 32 mitochondrial and 8 nuclear haplotypes. The phylogenetic analysis results revealed that all haplotypes were highly interconnected and a weak phylogeographic structure was revealed. The low genetic distance (FST) and high per-generation female migration rate (Nm) of most population pairs suggested that long-distance dispersal and the absence of a geographic barrier to gene flow were significant factors that affected the demography of X. ceramicus in northern Thailand.
       
  • Nematophagous fungi: Far beyond the endoparasite, predator and ovicidal
           groups

    • Abstract: Publication date: Available online 5 June 2018Source: Agriculture and Natural ResourcesAuthor(s): Filippe Elias de Freitas Soares, Bruna Leite Sufiate, José Humberto de Queiroz Knowledge of nematophagous fungi has increased dramatically over recent years, particularly with the advancement of molecular biology and omics sciences. However, most of this knowledge is restricted to the three traditional groups of nematophagous fungi: predatorial, opportunistic or ovicidal and endoparasitic. The present study supported the proposed classification of nematophagous fungi into five groups: nematode-trapping/predators, opportunistic or ovicidal, endoparasites, toxin-producing fungi and producers of special attack devices. This study also highlighted the analogy between special attack devices and real medieval weapons. Much study remains to be done to better understand some fungi and to discover new fungi with nematophagous and biological control potential.
       
  • Physicochemical and material properties of starches from three cultivars
           of Dioscorea rotundata

    • Abstract: Publication date: Available online 5 June 2018Source: Agriculture and Natural ResourcesAuthor(s): Umaru Ahmadu, Olamide Agbomeji, Mohammed Yahya, Oluwatoyin A. Odeku Dioscorea rotundata (white yam, guinea yam or African yam) is the most important species of yam in West Africa because of its economic value and uses. Starches from three cultivars of Dioscorea rotundata namely, Giwa, Lagos, and Sule, were characterized for their physicochemical and material properties. The starches were evaluated using elemental and proximate analyses, scanning electron microscopy, X-ray powder diffraction analysis and density measurements. The results showed that the starch granules from the three cultivars of D. rotundata were oval-oblong in shape with a size range of 3.19–3.59 μm. The X-ray diffraction pattern of the starches from the three cultivars was of the C type with relative crystallinity of 21%. The results showed that starches from the three D. rotundata cultivars had similar proximate, physicochemical and material properties. The starches had similar functionality, probably due to the similarities in their botanical sources. Thus, starches from the three cultivars of D. rotundata could be interchangeable as excipients in pharmaceutical tablets.
       
  • Mathematical modeling of thin layer drying using open sun and shade of
           Vernonia amygdalina leaves

    • Abstract: Publication date: Available online 5 June 2018Source: Agriculture and Natural ResourcesAuthor(s): Oluwaseun Ruth Alara, Nour Hamid Abdurahman, Siti Kholijah Abdul Mudalip, Olusegun Abayomi Olalere The drying behavior of Vernonia amygdalina leaves was investigated using open sun and shade drying. The effective diffusivity coefficients for both methods were evaluated. Eight drying kinetics models were fitted to the experimental data obtained from the two drying methods; the goodness of fit was evaluated using three statistical tools, and the best model was selected. The Midilli and Kucuk model, which gave higher values of the coefficient of determination and lower values of the reduced chi-square and root mean square error was considered the best for predicting the drying behavior of open sun-dried and shade-dried V. amygdalina leaves with values of R of 0.99951 and 0.99981, RMSE of 0.00243 and 0.00253 and reduced chi-square of 0.000511 and 0.000428, respectively. The values of the effective diffusivity coefficients for open sun and shade drying were 26.58 × 10−10 m2/s and 52.77 × 10−11 m2/s, respectively. Furthermore, open sun drying resulted in severe deformity of the leaf morphology which may lead to degradation of the phytochemicals. Thus, shade drying was the better way of drying V. amygdalina leaves to preserve the nutrients compared to open sun drying.
       
  • Species identification of non-hybrid and hybrid Pangasiid catfish using
           polymerase chain reaction-restriction fragment length polymorphism

    • Abstract: Publication date: Available online 4 June 2018Source: Agriculture and Natural ResourcesAuthor(s): Kednapat Sriphairoj, Uthairat Na-Nakorn, Sirawut Klinbunga Species-diagnostic molecular markers are essential for the identification of species groups possessing overlapping morphological characters. They also play an important role in preventing the supply of incorrect species for the food industry and in verifying the species origins of various forms of products. Molecular genetic markers were developed for the identification of six Pangasiid species—Pangasianodon gigas, Pangasianodon hypophthalmus, Pangasius bocourti, Pangasius conchophilus, Pangasius larnaudii and Pangasius sanitwongsei—based on restriction analysis of mitochondrial 16S ribosomal (r) DNA with Tsp 509I, Hinc II and Mfe I and nuclear immunoglobulin M heavy chain constant region (IgM-H) with Taq I and Pst I. Six non-overlapping composite restriction fragment length polymorphism (RFLP) patterns: AAB (AA) (AA), ACB(AA) (BB), BBB(BB) (BB), CCB(BB) (BB), DCA (BB) (CC) and DCB(−) (−) were observed across the respective species. Larvae of P. gigas, P. hypophthalmus, P. bocourti, P. larnaudii and P. sanitwongsei could be unambiguously differentiated using polymerase chain reaction (PCR)-RFLP analysis of 16S rDNA. In addition, detection of P. hypophthalmus × P. gigas, P. hypophthalmus × P. bocourti and P. hypophthalmus × P. larnaudii hybrids could be carried out using PCR-RFLP analysis of IgM-H.
       
  • Growth performance and genetic diversity in four strains of Asian
           sea bass, Lates calcarifer (Bloch, 1790) cultivated in Thailand

    • Abstract: Publication date: Available online 4 June 2018Source: Agriculture and Natural ResourcesAuthor(s): Weerakit Joerakate, Suthajaree Yenmak, Wansuk Senanan, Suriyan Tunkijjanukij, Skorn Koonawootrittriron, Supawadee Poompuang The growth and genetic variation were examined of four strains of Asian sea bass: Chon Buri (CHB), Chumphon (CHP), Chachoengsao (CHS), and Samut Songkhram (SMS). The growth of juvenile fish (90 d post-hatch) was assessed in earthen-pond culture environments for 220 d. Fish, with an average initial weight ±SE ranging from 9.48 ± 0.12 to 9.74 ± 0.16 g, depending on strain, were stocked in four 6 m × 6 m × 1.2 m stationary cages (replicates) in each of four 800 m2 ponds at 3 fish per m3 following a randomized complete block design. Strain differences in body weight were highly significant (p 
       
  • Effects of palm kernel meal level on live performance and gut morphology
           of broilers

    • Abstract: Publication date: Available online 4 June 2018Source: Agriculture and Natural ResourcesAuthor(s): Nisarat Yaophakdee, Yuwares Ruangpanit, Seksom Attamangkune A study was conducted to determine the effects of feeding different levels of palm kernel meal (PKM) on the live performance and gut morphology of broilers. In total, 600 one-day-old broilers (Ross 308) were divided into two groups. Each group consisted of six replications with 50 birds (25 males and 25 females) each. The diets were: 1) corn-soybean meal basal diet with low PKM levels (5% and 7.5% in starter and grower diets, respectively) and 2) corn-soybean basal diet with high PKM levels (10% and 15% in starter and grower diets, respectively). The experiment was conducted from 1 to 35 days of age (DOA). All birds were raised in an evaporative cooling house with pellet feed and water provided ad libitum. During 1–17 DOA, feeding diets with different levels of PKM had no effect on broiler performance (p > 0.05). During 18–35 DOA, feeding high levels of PKM had no significant effect on body weight gain, feed intake and mortality of broilers. However, birds fed high PKM diets had a significantly higher feed conversion ratio (FCR) than the low PKM group (P = 0.0495). Throughout the experimental period (1–35 DOA), feeding high levels of PKM had no effect on body weight gain but feed intake tended to increase with high PKM levels (P = 0.0873). This led to a significant lower feed conversion ratio of broilers (P = 0.0505). No significant effect of PKM level was observed on the ileum morphology and litter quality of broilers. It was concluded that feeding high levels of PKM had a negative effect on the feed efficiency but not on the gut health and litter quality of broilers.
       
  • Species diversity and polyunsaturated fatty acid content of
           thraustochytrids from fallen mangrove leaves in Chon Buri province,
           Thailand

    • Abstract: Publication date: Available online 17 May 2018Source: Agriculture and Natural ResourcesAuthor(s): Somtawin Jaritkhuan, Sudarat Suanjit Screening and isolation were carried out of thraustochytrids from fallen, senescent mangrove leaves from three mangrove forests in Chon Buri province, Thailand. In total, 715 thraustochytrid isolates were obtained and classified into 10 species: Aurantiochytrium mangrovei, A. limacinum, Aurantiochytrium sp.1, Aurantiochytrium sp.2, Aurantiochytrium sp.3, Aurantiochytrium sp.4, Aurantiochytrium sp.5, Aurantiochytrium sp.7, Unknown 1 and Unknown 2. The frequency of occurrence of thraustochytrids ranged from 2.50% to 57.50% and was higher in the dry season than the rainy season. The dominant species found in these areas were A. mangrovei and A. limacinum, and the leaves of Avicennia alba had the greatest abundance of A. mangrovei (57.50%) and A. limacinum (28.75%). The biomass of A. mangrovei and A. limacinum was in the range 6.88–22.49 g/L, and 9.39–20.71 g/L, respectively. The highest content of polyunsaturated fatty acids (PUFA) was docosahexaenoic acid (DHA, C22:6n-3) in A. limacinum and A. mangrovei at 1.43–29.67% and 0.84–31.09% of total fatty acid, respectively. The arachidonic acid (ARA, C20:4n-6) and eicosapentaenoic acid (EPA, C20:5n-3) contents were highest in A. limacinum (0.03–0.10% of total fatty acid), and A. mangrovei (0.13–0.60% of total fatty acid), whereas the amount of docosapentaenoic acid (DPA, C22:5n-3) was similar in A. limacinum (0.41–6.08% of total fatty acid) and A. mangrovei (0.23–7.51% of total fatty acid). The results from this study add to the database of biodiversity of thraustochytrids in Thailand and showed that high amounts of C22:6n-3 in some selected strains have potential for use in aquaculture or commercial use.
       
  • Assessment of some genetic attributes in wheat (Triticum aestivum L.)
           using gene-specific molecular markers

    • Abstract: Publication date: Available online 17 May 2018Source: Agriculture and Natural ResourcesAuthor(s): Rona Mahmud, Muhammed Rezwan Kabir, Md Ekramul Hoque, Md Abdullah Yousuf Akhond Twenty-four wheat genotypes were characterized for the presence of three stress related genetic attributes using gene-specific molecular markers. Polymerase chain reaction (PCR) products of approximately 110 bp of 1RS rye chromosome fragment from 16 genotypes were obtained using specific primer pairs indicating the presence of translocation in these lines. The same genotypes were screened for the presence of dwarfing genes where 19 genotypes showed the presence of either the Rht-B1b or Rht-D1b allele having a semi-dwarf phenotype. Two of the genotypes (Kheri and Sufi) had wild type alleles in both the loci and two other genotypes showed the presence of double dwarf alleles (Rht-B1b + Rht-D1b). A 16.9 kDa HSP gene was characterized by validating a single-nucleotide polymorphism (SNP) linked with thermo tolerance in wheat. Thirteen of the 24 genotypes, which failed to amplify the specific PCR product due to the presence of an SNP, are expected to show tolerance for heat stress. Among the genotypes, Sonora-64, Balaka, Barkat, Aghrani and BARI Gom-24 (Prodip) tested positive for all the three markers evaluated (rye translocation, dwarfing genes and heat tolerance). These genotypes could be used to improve various stress tolerance attributes in wheat for future breeding programs.
       
  • Purification and characterization of a harsh conditions-resistant protease
           from a new strain of Staphylococcus saprophyticus

    • Abstract: Publication date: Available online 17 May 2018Source: Agriculture and Natural ResourcesAuthor(s): Sasithorn Uttatree, Jittima Charoenpanich A major road block to the industrial usage of known proteases is their limited stability under harsh conditions. Hence, there is always a need for newer enzymes with novel properties that can further satisfy all industrial demands. This study described a benthic marine bacterium, Staphylococcus saprophyticus that secretes an alkaliphilic and broad-temperature active protease (10–80 °C). The protease was successfully purified 42.66-fold using 70–80% ammonium sulfate precipitation and gel-permeable column chromatography. It had a relative molecular mass of 28 kDa on sodium dodecyl sulphate-polyacrylamide gel electrophoresis and retained high activity and significant stability at 60–80 °C, over a wide range of pH (3.0–12.0), inhibitors and metal ions. Furthermore, the enzyme was stable in surfactants (such as sodium dodecyl sulfate), oxidizing agents (such as H2O2), bleaching agents (such as zeolite) and hydrophobic solvents (such as benzene, hexanes and hexadecane). These properties support the enzyme's potential as a vigorous biocatalyst for industrial applications.
       
  • Toward sustainable phosphorus management in Sri Lankan rice and
           vegetable-based cropping systems: A review

    • Abstract: Publication date: Available online 31 March 2018Source: Agriculture and Natural ResourcesAuthor(s): Dinarathna Sirisena, Lalith D.B. Suriyagoda Upland soils used for vegetable cultivation and lowland soils used for rice cultivation in Sri Lanka are inherently low in phosphorus (P) availability for plants. Rice is grown twice a year while vegetables are grown in intensive rotations. Heavy doses of inorganic and organic P sources are regularly applied to vegetable cultivating systems aimed at maximizing productivity, and disregarding the relatively lower P fertilizer application rates recommended by the government Department of Agriculture. This practice has led to the development of high P concentrations in intensive, high-value vegetable cultivating systems which is threatening environmental sustenance (267 mg available P/kg of soil). For rice, only inorganic P sources are widely being applied and the excessive soil P loading is less severe than that in vegetable cultivating systems (13 mg available P/kg soil). However, rice crops grown in most of the lowlands do not show positive responses to added P fertilizers. The development of chronic diseases among the inhabitants in certain intensively rice cultivated regions in Sri Lanka is suspected to be due to the presence of high concentrations of heavy metals in P fertilizers and the accumulation of those in food chains. Despite sustainable and updated P fertilizer recommendations being available, farmers continue to apply overdoses of P, seeking higher crop yields. Therefore, coordination and active intervention of all the related institutes are required when improving the awareness of farmers on this malpractice, and ensuring the sustainability of vegetable and rice cultivating systems in Sri Lanka with respect to P nutrition.
       
  • Comparison of leaf osmotic adjustment expression in wheat (Triticum
           aestivum L.) under water deficit between the whole plant and tissue levels
           

    • Abstract: Publication date: Available online 31 March 2018Source: Agriculture and Natural ResourcesAuthor(s): Song Ai Nio, Daniel Peter Mantilen Ludong, Len J. Wade This study compared osmotic adjustment (OA) expression and solutes involved in leaves of wheat with high OA capacity (cv. Hartog) under water deficit (WD) in the glasshouse (whole plant level) and laboratory (tissue level). WD was applied at the reproductive stage for the whole plant level and WD was induced at the tissue level using polyethylene glycol (PEG) 8000 as a non-permeating osmotic agent. In the whole plant Experiment, leaf OA was expressed at 16 days (0.26 MPa) and increased to 0.37 MPa at 37 days of treatment. In the tissue level experiment, exposure of leaf segments to PEG 8000 treatments of 0, −0.5, −1.0 and −1.5 MPa and sampling times of 0, 12, 24, 48 and 72 h showed that the maximum leaf OA (0.37 MPa) was expressed on PEG −0.5 MPa after 48 h of treatment. K+, glycinebetaine and proline accounted for 21, 19 and 21% of OA in the glasshouse experiment. K+ did not contribute to the OA, while Na+ and proline only accounted for 5 and 1% in the laboratory experiment. Although OA was expressed in leaf segments of wheat subjected to WD under PEG -0.5 MPa, the laboratory-based PEG method with leaf segments could not substitute for the glasshouse experiment for screening germplasm for OA capacity.
       
 
 
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