TY - JOUR
T1 - Evidence that cellulolysis by an anaerobic ruminal fungus is catabolite regulated by glucose, cellobiose, and soluble starch
AU - Morrison, M.
AU - Mackie, R. I.
AU - Kistner, A.
PY - 1990
Y1 - 1990
N2 - A Piromyces-like ruminal fungus was used to study preferential carbohydrate utilization of [U-14C]cellulose, both alone and in combination with several soluble sugars. For cells grown on cellulose alone, cellulolytic activity was immediate and, initially, greater than that observed in the presence of added carbohydrate. Cellulolytic activity remained minimal in cultures containing cellulose plus glucose or cellobiose until the soluble sugar was depleted. Soluble starch also regulated cellulose activity but to a lesser extent. The results presented suggest that some fungal cellulases are susceptible to catabolite regulatory mechanisms.
AB - A Piromyces-like ruminal fungus was used to study preferential carbohydrate utilization of [U-14C]cellulose, both alone and in combination with several soluble sugars. For cells grown on cellulose alone, cellulolytic activity was immediate and, initially, greater than that observed in the presence of added carbohydrate. Cellulolytic activity remained minimal in cultures containing cellulose plus glucose or cellobiose until the soluble sugar was depleted. Soluble starch also regulated cellulose activity but to a lesser extent. The results presented suggest that some fungal cellulases are susceptible to catabolite regulatory mechanisms.
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U2 - 10.1128/aem.56.10.3227-3229.1990
DO - 10.1128/aem.56.10.3227-3229.1990
M3 - Article
C2 - 16348329
AN - SCOPUS:0025102797
SN - 0099-2240
VL - 56
SP - 3227
EP - 3229
JO - Applied and Environmental Microbiology
JF - Applied and Environmental Microbiology
IS - 10
ER -