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Light enhances the growth rates of natural populations of aerobic anoxygenic phototrophic bacteria
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SYSNO ASEP 0483385 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Light enhances the growth rates of natural populations of aerobic anoxygenic phototrophic bacteria Author(s) Ferrera, I. (ES)
Sánchez, O. (ES)
Kolářová, Eva (MBU-M)
Koblížek, Michal (MBU-M) RID, ORCID
Gasol, J.M. (ES)Source Title The ISME Journal. - : Nature Publishing Group - ISSN 1751-7362
Roč. 11, č. 10 (2017), s. 2391-2393Number of pages 3 s. Language eng - English Country GB - United Kingdom Keywords MEDITERRANEAN-SEA ; BACTERIOCHLOROPHYLL ; REGIMEN Subject RIV EE - Microbiology, Virology OECD category Microbiology R&D Projects GA13-11281S GA ČR - Czech Science Foundation (CSF) LO1416 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support MBU-M - RVO:61388971 UT WOS 000411136300021 EID SCOPUS 85029665833 DOI 10.1038/ismej.2017.79 Annotation Aerobic anoxygenic phototrophic (AAP) bacteria are microorganisms that can harvest light energy using bacteriochlorophyll a to supplement their predominantly organotrophic metabolism. Growth enhancement by light has repeatedly been demonstrated in laboratory experiments with AAP isolates. However, the ecological advantage of light utilization is unclear, as it has never been proven in the natural environment. Here, we conducted manipulation experiments in the NW Mediterranean and found that AAP bacteria display high growth rates which are controlled to a large extent by intense grazing pressure and phosphorous availability. Foremost, we found that, contrarily to the bulk bacterioplakton, AAP bacteria display higher growth rates when incubated under light-dark cycles than in complete darkness. These results represent the first direct evidence that natural populations of marine AAP bacteria can be stimulated by light. Workplace Institute of Microbiology Contact Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Year of Publishing 2018
Number of the records: 1