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.
CITATION STYLE
Poirot, C. C. M., Van Alebeek, G. J. W. M., Keltjens, J. T., & Vogels, G. D. (1991). Identification of para-cresol as a growth factor for Methanoplanus endosymbiosus. Applied and Environmental Microbiology, 57(4), 976–980. https://doi.org/10.1128/aem.57.4.976-980.1991
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