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dc.contributor.authorZhang, Weipeng
dc.contributor.authorWang, Yong
dc.contributor.authorBougouffa, Salim
dc.contributor.authorTian, Renmao
dc.contributor.authorCao, Huiluo
dc.contributor.authorLi, Yongxin
dc.contributor.authorCai, Lin
dc.contributor.authorWong, Yue Him
dc.contributor.authorZhang, Gen
dc.contributor.authorZhou, Guowei
dc.contributor.authorZhang, Xixiang
dc.contributor.authorBajic, Vladimir B.
dc.contributor.authorAl-Suwailem, Abdulaziz M.
dc.contributor.authorQian, Pei-Yuan
dc.date.accessioned2015-07-27T12:28:58Z
dc.date.available2015-07-27T12:28:58Z
dc.date.issued2015-08-17
dc.identifier.citationSynchronized dynamics of bacterial niche-specific functions during biofilm development in a cold seep brine pool 2015:n/a Environmental Microbiology
dc.identifier.issn14622912
dc.identifier.pmid26171930
dc.identifier.doi10.1111/1462-2920.12978
dc.identifier.urihttp://hdl.handle.net/10754/561085
dc.description.abstractThe biology of biofilm in deep-sea environments is barely being explored. Here, biofilms were developed at the brine pool (characterized by limited carbon sources) and the normal bottom water adjacent to Thuwal cold seeps. Comparative metagenomics based on 50 Gb datasets identified polysaccharide degradation, nitrate reduction, and proteolysis as enriched functional categories for brine biofilms. The genomes of two dominant species: a novel deltaproteobacterium and a novel epsilonproteobacterium in the brine biofilms were reconstructed. Despite rather small genome sizes, the deltaproteobacterium possessed enhanced polysaccharide fermentation pathways, whereas the epsilonproteobacterium was a versatile nitrogen reactor possessing nar, nap and nif gene clusters. These metabolic functions, together with specific regulatory and hypersaline-tolerant genes, made the two bacteria unique compared with their close relatives including those from hydrothermal vents. Moreover, these functions were regulated by biofilm development, as both the abundance and the expression level of key functional genes were higher in later-stage biofilms, and co-occurrences between the two dominant bacteria were demonstrated. Collectively, unique mechanisms were revealed: i) polysaccharides fermentation, proteolysis interacted with nitrogen cycling to form a complex chain for energy generation; ii) remarkably, exploiting and organizing niche-specific functions would be an important strategy for biofilm-dependent adaptation to the extreme conditions.
dc.publisherWiley
dc.relation.urlhttp://doi.wiley.com/10.1111/1462-2920.12978
dc.rightsThis is the peer reviewed version of the following article: Zhang, Weipeng, Yong Wang, Salim Bougouffa, Renmao Tian, Huiluo Cao, Yongxin Li, Lin Cai et al. "Synchronized dynamics of bacterial niche-specific functions during biofilm development in a cold seep brine pool." Environmental microbiology (2015)., which has been published in final form at http://doi.wiley.com/10.1111/1462-2920.12978. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
dc.subjectmicrobial adaptation
dc.subjectextreme condition
dc.subjectinter-species interaction
dc.subjectgenome binning
dc.titleSynchronized dynamics of bacterial niche-specific functions during biofilm development in a cold seep brine pool
dc.typeArticle
dc.contributor.departmentApplied Mathematics and Computational Science Program
dc.contributor.departmentCoastal and Marine Resources Core Lab
dc.contributor.departmentComputational Bioscience Research Center (CBRC)
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentKAUST Global Partnership Program
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalEnvironmental Microbiology
dc.eprint.versionPost-print
dc.contributor.institutionSanya Institute of Deep Sea Science and Engineering, Chinese Academy of Sciences, San Ya, Hai Nan; China
dc.contributor.institutionDivision of Life Science, Hong Kong University of Science and Technology, Clear Water Bay; Hong Kong
kaust.personBougouffa, Salim
kaust.personZhang, Xixiang
kaust.personZhang, Weipeng
kaust.personTian, Renmao
kaust.personCao, Huiluo
kaust.personLi, Yongxin
kaust.personCai, Lin
kaust.personWong, Yue Him
kaust.personZhang, Gen
kaust.personZhou, Guowei
kaust.personBajic, Vladimir B.
kaust.personAl-Suwailem, Abdulaziz M.
kaust.personQian, Pei-Yuan
refterms.dateFOA2016-07-14T00:00:00Z
dc.date.published-online2015-08-17
dc.date.published-print2015-10


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