Northern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, Peoria, Illinois 61604.
Appl Environ Microbiol. 1986 Jul;52(1):209-10. doi: 10.1128/aem.52.1.209-210.1986.
The growth of several cellulolytic species of ruminal bacteria was measured in media containing either cellobiose or cellulose as the energy source and with or without added 3-phenylpropanoic acid (PPA). With Ruminoccoccus albus 7 and 8, the addition of PPA greatly enhanced the rate of cellulose utilization but had little effect on the rate of growth when cellobiose was the energy source. Comparative rates of growth obtained on either cellobiose or cellulose for Ruminococcus flavefaciens FD1 or C94 and Butyrivibrio fibrisolvens 12, 49, or A38 were similar regardless of the PPA content of the growth medium.
研究了以纤维二糖或纤维素作为能源的培养基中几种瘤胃细菌的生长情况,这些细菌都能产生纤维素酶。添加或不添加 3-苯丙酸(PPA)。对于 Ruminoccoccus albus 7 和 8,添加 PPA 大大提高了纤维素的利用率,但当以纤维二糖作为能源时,对生长速度的影响很小。无论生长培养基中是否含有 PPA,Ruminococcus flavefaciens FD1 或 C94 以及 Butyrivibrio fibrisolvens 12、49 或 A38 在纤维二糖或纤维素上的生长速率都相似。