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Effect of cocultivation of ruminal chytrid fungi with Methanobrevibacter smithii on lucerne stem degradation and extracellular fungal enzyme activities
Author(s) -
Joblin K.N.,
Williams A.G
Publication year - 1991
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.1991.tb00520.x
Subject(s) - xylose , biology , arabinose , extracellular , xylanase , biochemistry , monosaccharide , enzyme , microbiology and biotechnology , sugar , rumen , bacteria , fermentation , genetics
Pentoses and hexoses were removed simultaneously from lucerne ( Medicago sativa ) stem by Piromonas communis and Neocallimastix frontalis growing axenically or in coculture with Methanobrevibacter smithii . In monocultures, more arabinose (68–71%) than glucose (52–53%) or xylose (25–30%) was removed. In cocultures, xylose solubilization from cell walls increased for P. communis whereas glucose solubilization increased for both fungi. The rates of sugar removal were monosaccharide‐dependent. For both fungi, the specific activities of extracellular hydrolytic enzymes were markedly elevated in methanogenic cocultures.