Differences in Survivability under Starvation Conditions Among Four Species of Purple Nonsulfur Phototrophic Bacteria

  • Kanno Nanako
    Graduate School of Science and Engineering, Tokyo Metropolitan University
  • Matsuura Katsumi
    Graduate School of Science and Engineering, Tokyo Metropolitan University
  • Haruta Shin
    Graduate School of Science and Engineering, Tokyo Metropolitan University

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Abstract

Survivability under carbon-starvation conditions was investigated in four species of purple phototrophic bacteria: Rhodopseudomonas palustris, Rhodobacter sphaeroides, Rhodospirillum rubrum, and Rubrivivax gelatinosus. All these test organisms survived longer in the light than in the dark. ATP levels in the cultures were maintained in the light, which indicated that survivability was supported by photosynthesis. Survivability and tolerance against hypertonic stress in the dark was higher in Rhodopseudomonas palustris, which is widely distributed in natural environments including soils, than in the three other species.

Journal

  • Microbes and Environments

    Microbes and Environments 29 (3), 326-328, 2014

    Japanese Society of Microbial Ecology / Japanese Society of Soil Microbiology / Taiwan Society of Microbial Ecology / Japanese Society of Plant Microbe Interactions / Japanese Society for Extremophiles

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