Recovery of novel bacterial diversity from mangrove sediment
Liang, J.-B.; Chen, Y.-Q.; Lan, C.-Y.; Tam, N.F.Y.; Zan, Q.-J.; Huang, L.-N. (2007). Recovery of novel bacterial diversity from mangrove sediment. Mar. Biol. (Berl.) 150(5): 739-747. http://dx.doi.org/10.1007/s00227-006-0377-2
In: Marine Biology: International Journal on Life in Oceans and Coastal Waters. Springer: Heidelberg; Berlin. ISSN 0025-3162; e-ISSN 1432-1793, meer
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| Auteurs | | Top |
- Liang, J.-B.
- Chen, Y.-Q.
- Lan, C.-Y.
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- Tam, N.F.Y.
- Zan, Q.-J.
- Huang, L.-N.
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| Abstract |
Bacteria in the surface sediments of a subtropical mangrove habitat were investigated using a cultivation-independent molecular approach. Phylogenetic analysis of nearly full-length 16S rRNA genes revealed a diversity of sequences that were mostly novel. Members from the five subdivisions of the Proteobacteria were detected, and they collectively represented the majority (67%) of the clone library. Sequence types affiliated with the Gammaproteobacteria constituted the largest portion (29%) of the library, and many of them were related to free-living and symbiotic sulfur-oxidizing bacteria. The Epsilonproteobacteria were the second most abundant group (16%), including only one sequence type clustering with PCR-generated bacterial clones previously recovered from deep-sea sediments. A substantial portion (8%) of the clones grouped within the Deltaproteobacteria, a subdivision with anaerobic sulfate or metal reduction as the predominant metabolic trait of its members. In addition, minor portions were affiliated with the Cytophaga–Flexibacter–Bacteroides group (9%), Actinobacteria (6%), Chloroflexi (5%), Firmicutes (4%), Fusobacteria (1%), and the Chlamydiae/Verrucomicrobia group, Fibrobacteres/Acidobacteria group and Planctomycetes (each < 1%). These results significantly expand our knowledge of the bacterial diversity of the unique mangrove environment. |
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