Synchronized dynamics of bacterial niche-specific functions during biofilm development in a cold seep brine pool
Zhang, Weipeng1; Wang, Yong2; Bougouffa, Salim3; Tian, Renmao1; Cao, Huiluo1; Li, Yongxin1; Cai, Lin1; Wong, Yue Him1; Zhang, Gen1; Zhou, Guowei1; Zhang, Xixiang3; Bajic, Vladimir B.3; Al-Suwailem, Abdulaziz3; Qian, Pei-Yuan1,2
2015-10-01
发表期刊ENVIRONMENTAL MICROBIOLOGY
卷号17期号:10页码:4089-4104
摘要The 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 50Gb 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, and (ii) remarkably exploiting and organizing niche-specific functions would be an important strategy for biofilm-dependent adaptation to the extreme conditions.
文章类型Article
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.1111/1462-2920.12978
URL查看原文
收录类别SCI
语种英语
关键词[WOS]SULFUR-OXIDIZING BACTERIUM ; COMMUNITY STRUCTURE ; MICROBIAL BIOFILMS ; SP NOV. ; SEA ; ADAPTATION ; EPSILONPROTEOBACTERIA ; POLYSACCHARIDE ; PSEUDOMONAS ; RESISTANCE
WOS类目Microbiology
WOS记录号WOS:000363448500049
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被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.idsse.ac.cn/handle/183446/887
专题深海科学研究部_深海生物学研究室_海洋微生物宏基因组与分子进化研究组
作者单位1.Hong Kong Univ Sci & Technol, Div Life Sci, KAUST Global Partnership Program, Hong Kong, Hong Kong, Peoples R China
2.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya, Hainan, Peoples R China
3.King Abdullah Univ Sci & Technol, Thuwal, Saudi Arabia
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Zhang, Weipeng,Wang, Yong,Bougouffa, Salim,et al. Synchronized dynamics of bacterial niche-specific functions during biofilm development in a cold seep brine pool[J]. ENVIRONMENTAL MICROBIOLOGY,2015,17(10):4089-4104.
APA Zhang, Weipeng.,Wang, Yong.,Bougouffa, Salim.,Tian, Renmao.,Cao, Huiluo.,...&Qian, Pei-Yuan.(2015).Synchronized dynamics of bacterial niche-specific functions during biofilm development in a cold seep brine pool.ENVIRONMENTAL MICROBIOLOGY,17(10),4089-4104.
MLA Zhang, Weipeng,et al."Synchronized dynamics of bacterial niche-specific functions during biofilm development in a cold seep brine pool".ENVIRONMENTAL MICROBIOLOGY 17.10(2015):4089-4104.
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