Members of the genus Propionibacterium are widely used in the production of vitamin B12, tetrapyrrole compounds, and propionic acid, as well as in the probiotics and cheese industries.Kiatpapan P., Murooka Y. Genetic manipulation system in propionibacteria. Journal of Bioscience and Bioengineering. 93 (1) (pp 1-8), 2002
