Identification of para-Cresol as a Growth Factor for Methanoplanus endosymbiosus.
Growth of the methanogenic bacterium Methanoplanus endosymbiosus is dependent on the presence of ruminal fluid. Ruminal fluid could be replaced by the eluate of a rumen-derived anaerobic digester. From the eluate of the digester, a growth-stimulatory component was purified and identified as p-cresol. Authentic p-cresol supported a half-maximal growth rate of the organism at 50 nM concentration.
Poirot
C C
CC
Department of Microbiology, Faculty of Science, University of Nijmegen, Toernooiveld, NL-6526 ED Nijmegen, The Netherlands.
Van Alebeek
G J
GJ
Keltjens
J T
JT
Vogels
G D
GD