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dc.contributor.authorPeng, Zaiqingzh_CN
dc.contributor.authorJiao, Nianzhizh_CN
dc.contributor.author焦念志zh_CN
dc.date.accessioned2011-04-26T08:02:22Z
dc.date.available2011-04-26T08:02:22Z
dc.date.issued2010-05-18zh_CN
dc.identifier.citationAFRICAN JOURNAL OF MICROBIOLOGY RESEARCH,2010,4(10):964-968zh_CN
dc.identifier.issn1996-0808zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/1818
dc.description.abstractFlow cytometry's (FCM) measurement of membrane potential (MP) and cell respiration viability based on continuous culture was used to investigate the responses of aerobic anoxygenic phototrophic bacteria (AAPB) in the heterotrophic growth and regulation mechanism of photosynthesis to environmental changes. An AAPB strain Erythrobacter sp. JL475 and a non-AAPB strain Erythrobacter sp. JL316 were used as the experimental bacteria, both of which were isolated from the South China Sea. The results showed that light-cultured AAPB showed higher MP and biomass at 10 degrees C, suggesting an obvious stimulation of light on AAPB growth. By contrast, dark-cultivated JL475 had higher MP and biomass at higher temperature (20, 30 and 40 degrees C). The rate of heterotrophic respiration at different temperature environment ranked as follows: dark-cultivated JL316 > dark-cultivated JL475 > light/dark cycling cultivated JL475. Light undoubtedly increased the cell viability of AAPB, especially of apoptosis cells. The CTC+% at different carbon concentration ranked as follows: light/dark cycling cultivated JL475 > dark-cultivated JL316 > dark-cultivated JL475. It was concluded that the heterotrophic respiration would played a key role in energy metabolism of AAPB, photosynthesis may provide an advantage for AAPB to survive in a variety of diverse environments.zh_CN
dc.description.sponsorshipMOST [2007CB815904, 2006BAC11B04]; SOA [200805068]; NSFC [40632013]; MOE [704029]zh_CN
dc.language.isoenzh_CN
dc.publisherACADEMIC JOURNALSzh_CN
dc.subjectFlow cytometryzh_CN
dc.subjectaerobic anoxygenic phototrophic bacteriazh_CN
dc.subjectmembrane potentialzh_CN
dc.subjectrespiration viabilityzh_CN
dc.subjectbiomasszh_CN
dc.titleInfluences of light and temperature on membrane potential and respiratory viability of an aerobic anoxygenic phototrophic bacterium Erythrobacter sp. JL475zh_CN
dc.typeArticlezh_CN


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