Characterization of the purple nonsulfur bacterium, rhodopseudomonas palustris strain P-1, degrading ferulate

  • Hee, Hong-Duck (Department of Microbiology, College of Natural Sciences, Kyungpook National University) ;
  • Kim, Kyung-Hwan (Department of Microbiology, College of Natural Sciences, Kyungpook National University) ;
  • Lee, Jai-Youl
  • Published : 1992.12.01

Abstract

Photosynthetic bacteria which can utilize ferulate as a sole carbon source for their metabolic activities were isolated from soils by liquid enrichment culture technique. The strain P-1 was selected by the highest capability of degrading ferulate in aerobic and anaerobic conditions. The strain P-1 was rod-shaped with its motility, strained gram negatively and could not utilize sulfur compounds. This strain has the bacteriochlorophyll a group I carotenoid and membrane structures like lamellae. As the results of physiological, morphological and cultural charactderistics, the isolate was identified as Rhodopseudomonas plaustris, one of the purple nonsulfer bacteria. The strain P-1 utilized 2mM/day in aerobic condition and 0.86 mM/day in anaerobic condition.

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