Journal
SCIENTIFIC REPORTS
Volume 4, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/srep03587
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Funding
- National Basic Research Program of China (973 Program) [2012CB417304]
- Sanya Deep Sea Institute of Science and Engineering [SIDSSE-201206, SIDSSE-201305]
- COMAR program of China [COMRRDA12SC02]
- King Abdullah University of Science and Technology [SA-C0040/UK-C0016]
- RGC [661611]
- Global Collaborative Research Program of KAUST and KAUST Base Research Funds
- Chinese Academy of Sciences
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Using microscopic and molecular techniques combined with computational analysis, this study examined the structure and composition of microbial communities in biofilms that formed on different artificial substrates in a brine pool and on a seep vent of a cold seep in the Red Sea to test our hypothesis that initiation of the biofilm formation and spreading mode of microbial structures differs between the cold seep and the other aquatic environments. Biofilms on different substrates at two deployment sites differed morphologically, with the vent biofilms having higher microbial abundance and better structural features than the pool biofilms. Microbes in the pool biofilms were more taxonomically diverse and mainly composed of various sulfate-reducing bacteria whereas the vent biofilms were exclusively dominated by sulfur-oxidizing Thiomicrospira. These results suggest that the redox environments at the deployment sites might have exerted a strong selection on microbes in the biofilms at two sites whereas the types of substrates had limited effects on the biofilm development.
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