title: Differences in survivability under starvation conditions among four species of purple nonsulfur phototrophic bacteria.
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.
authors.affiliation: Graduate School of Science and Engineering, Tokyo Metropolitan University.
authors.forename: Nanako
authors.initials: N
authors.lastname: Kanno
authors.forename: Katsumi
authors.initials: K
authors.lastname: Matsuura
authors.forename: Shin
authors.initials: S
authors.lastname: Haruta
mesh_terms: D008027:Light; D050296:Microbial Viability; D010788:Photosynthesis / Q000528:radiation effects; D012244:Rhodospirillaceae / Q000145:classification / Q000254:growth & development* / Q000378:metabolism / Q000528:radiation effects; D013045:Species Specificity