M. Marounek et J. Kopecny, UTILIZATION OF GLUCOSE AND XYLOSE IN RUMINAL STRAINS OF BUTYRIVIBRIO-FIBRISOLVENS, Applied and environmental microbiology, 60(2), 1994, pp. 738-739
The dual-substrate utilization pattern in cultures of five ruminal str
ains of Butyrivibrio fibrisolvens growing on glucose and xylose was in
vestigated. Strains ATCC 19171 and 86 utilized glucose and xylose simu
ltaneously. Other strains exhibited diauxic growth. Strains X1 and CE
51 exhibited classical diauxic growth in which glucose was utilized du
ring the first phase. Strain X2D62 displayed atypical diauxic growth i
n which slow utilization of xylose was followed by rapid utilization o
f glucose after the xylose depletion. The ATP-dependent phosphorylatio
n of glucose was found in all strains tested. The phosphoenolpyruvate-
dependent phosphorylation of glucose was detected only in B. fibrisolv
ens CE 51.