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CARBOHYDRATE METABOLISM IN THE FUNGUS DENDRYPHIELLA SALINA
Author(s) -
HOLLIGAN P. M.,
JENNINGS D. H.
Publication year - 1972
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1972.tb01267.x
Subject(s) - arabitol , mannitol , mycelium , carbohydrate , carbohydrate metabolism , sugar , sucrose , biochemistry , metabolism , assimilation (phonology) , fructose , chemistry , nitrogen assimilation , biology , food science , botany , enzyme , fermentation , xylitol , linguistics , philosophy
S ummary Cultures of Dendryphiella salina , grown in a liquid glucose‐tryptone medium, were transferred to a similar but more dilute medium until the mycelial soluble carbohydrates had been depleted. These so‐called starved cultures were then placed in various defined (regrowth) media, differing particularly with respect to concentrations of glucose and nitrate. The changes in mycelial carbohydrates, which occurred during starvation, and afterwards, in the regrowth media, were determined by gas chromatography. Mannitol and arabitol were the major products of glucose assimilation. When this sugar was depleted from the medium, mannitol was readily catabolized. By contrast, accumulation of arabitol continued for several hours after the exhaustion of substrate glucose and the maximum levels attained were dependent upon the nitrogen source. Microscopical observations on the mycelium during starvation and regrowth are reported. The results are discussed in relation to other studies on the growth of fungi in stirred liquid culture.