title: Identification of para-Cresol as a Growth Factor for Methanoplanus endosymbiosus.
abstract: 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.
authors.affiliation: Department of Microbiology, Faculty of Science, University of Nijmegen, Toernooiveld, NL-6526 ED Nijmegen, The Netherlands.
authors.forename: C C
authors.initials: CC
authors.lastname: Poirot
authors.forename: G J
authors.initials: GJ
authors.lastname: Van Alebeek
authors.forename: J T
authors.initials: JT
authors.lastname: Keltjens
authors.forename: G D
authors.initials: GD
authors.lastname: Vogels