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  Ecology of marine Bacteroidetes: a comparative genomics approach

Fernandez-Gomez, B., Richter, M., Schüler, M., Pinhassi, J., Acinas, S. G., Gonzalez, J. M., et al. (2013). Ecology of marine Bacteroidetes: a comparative genomics approach. ISME JOURNAL, 7(5), 1026-1037. doi:10.1038/ismej.2012.169.

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Fernandez-Gomez, Beatriz1, Author
Richter, Michael1, Author
Schüler, Margarete2, Author              
Pinhassi, Jarone1, Author
Acinas, Silvia G.1, Author
Gonzalez, Jose M.1, Author
Pedros-Alio, Carlos1, Author
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1external, ou_persistent22              
2Baumeister, Wolfgang / Molecular Structural Biology, Max Planck Institute of Biochemistry, Max Planck Society, ou_1565142              

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Free keywords: PROTEIN FAMILIES; INTERACTIVE TREE; ORGANIC-MATTER; PROTEORHODOPSIN; BACTERIA; FLAVOBACTERIA; ISLANDS; ANNOTATION; GROWTH; TOOLglycoside hydrolase; polymer degradation; polymeric organic matter; protease; proteorhodopsin;
 Abstract: Bacteroidetes are commonly assumed to be specialized in degrading high molecular weight (HMW) compounds and to have a preference for growth attached to particles, surfaces or algal cells. The first sequenced genomes of marine Bacteroidetes seemed to confirm this assumption. Many more genomes have been sequenced recently. Here, a comparative analysis of marine Bacteroidetes genomes revealed a life strategy different from those of other important phyla of marine bacterioplankton such as Cyanobacteria and Proteobacteria. Bacteroidetes have many adaptations to grow attached to particles, have the capacity to degrade polymers, including a large number of peptidases, glycoside hydrolases (GHs), glycosyl transferases, adhesion proteins, as well as the genes for gliding motility. Several of the polymer degradation genes are located in close association with genes for TonB-dependent receptors and transducers, suggesting an integrated regulation of adhesion and degradation of polymers. This confirmed the role of this abundant group of marine bacteria as degraders of particulate matter. Marine Bacteroidetes had a significantly larger number of proteases than GHs, while non-marine Bacteroidetes had equal numbers of both. Proteorhodopsin containing Bacteroidetes shared two characteristics: small genome size and a higher number of genes involved in CO2 fixation per Mb. The latter may be important in order to survive when floating freely in the illuminated, but nutrient-poor, ocean surface. The ISME Journal (2013) 7, 1026-1037; doi:10.1038/ismej.2012.169; published online 10 January 2013

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Language(s): eng - English
 Dates: 2013-05
 Publication Status: Published in print
 Pages: 12
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: ISI: 000317963300012
DOI: 10.1038/ismej.2012.169
 Degree: -

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Title: ISME JOURNAL
Source Genre: Journal
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Publ. Info: MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND : NATURE PUBLISHING GROUP
Pages: - Volume / Issue: 7 (5) Sequence Number: - Start / End Page: 1026 - 1037 Identifier: ISSN: 1751-7362