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Proteorhodopsin pho...
Proteorhodopsin phototrophy promotes survival of marine bacteria during starvation
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- Gómez-Consarnau, Laura (författare)
- Linnéuniversitetet,Institutionen för naturvetenskap, NV,Marine Microbiology
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- Akram, Neelam (författare)
- Linnéuniversitetet,Institutionen för naturvetenskap, NV
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- Lindell, Kristoffer (författare)
- Umeå universitet,Institutionen för molekylärbiologi (Teknisk-naturvetenskaplig fakultet),Umeå Centre for Microbial Research (UCMR)
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- Pedersen, Anders, 1976 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry
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- Neutze, Richard, 1969 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry
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- Milton, Debra L (författare)
- Umeå universitet,Umeå Centre for Microbial Research (UCMR),Institutionen för molekylärbiologi (Teknisk-naturvetenskaplig fakultet),Milton
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González, José M (författare)
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- Pinhassi, Jarone (författare)
- Linnéuniversitetet,Institutionen för naturvetenskap, NV,Marine Microbiology
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(creator_code:org_t)
- 2010-04-27
- 2010
- Engelska.
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Ingår i: PLoS biology. - : Public Library Science. - 1544-9173 .- 1545-7885. ; 8
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Abstract
Ämnesord
Stäng
- Proteorhodopsins are globally abundant photoproteins found in bacteria in the photic zone of the ocean. Although their function as proton pumps with energy-yielding potential has been demonstrated, the ecological role of proteorhodopsins remains largely unexplored. Here, we report the presence and function of proteorhodopsin in a member of the widespread genus Vibrio, uncovered through whole-genome analysis. Phylogenetic analysis suggests that the Vibrio strain AND4 obtained proteorhodopsin through lateral gene transfer, which could have modified the ecology of this marine bacterium. We demonstrate an increased long-term survival of AND4 when starved in seawater exposed to light rather than held in darkness. Furthermore, mutational analysis provides the first direct evidence, to our knowledge, linking the proteorhodopsin gene and its biological function in marine bacteria. Thus, proteorhodopsin phototrophy confers a fitness advantage to marine bacteria, representing a novel mechanism for bacterioplankton to endure frequent periods of resource deprivation at the ocean’s surface.
Ämnesord
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Mikrobiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Microbiology (hsv//eng)
Nyckelord
- planktonic bacteria
- flavobacteria
- expression
- proteins
- archaea
- growth
- vibrio
- genes
- ocean
- sar11
- Marine ecology
- Microbiology
- Mikrobiologi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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