Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modelling the Hyphal Growth of the Wood-decay Fungus Physisporinus
  vitreus   The white-rot fungus, Physisporinus vitreus, degrades the membranes of
bordered pits in tracheids and consequently increases the permeability of wood,
which is a process that can be used by the wood industry to improve the uptake
of wood preservatives and environmentally benign wood modification substances
to enhance the use and sustainability of native conifer wood species. To
understand and apply this process requires an understanding of how a complex
system (fungus-wood) interacts under defined conditions. We present a
three-dimensional fungal growth model (FGM) of the hyphal growth of P. vitreus
in the heartwood of Norway spruce. The model considers hyphae and nutrients as
discrete structures and links the microscopic interactions between fungus and
wood (e.g. degradation rate and degree of opening of pits) with macroscopic
system properties, such penetration depth of the fungus, biomass and
distribution of destroyed pits in early- and latewood. Simulations were
compared with experimental data. The growth of P. vitreus is characterized by a
stepwise capture of the substrate and the effect of this on wood according to
different model parameters is discussed.

34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc