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Diversity of Bacillus-like bacterial community in the sediments of the Bamenwan mangrove wetland in Hainan, China

文献类型: 外文期刊

作者: Liu, Min 1 ; Cui, Ying 1 ; Chen, Yuqing 1 ; Lin, Xiangzhi 1 ; Huang, Huiqin 1 ; Bao, Shixiang 1 ;

作者机构: 1.Chinese Acad Trop Agr Sci, Key Lab Biol & Genet Resources Trop Crops, Inst Trop Biosci & Biotechnol, Minist Agr, Haikou 571101, Hainan, Peoples R China

关键词: diversity;Bacillus-like bacteria;454 pyrosequencing;culture-dependent method;mangrove sediment

期刊名称:CANADIAN JOURNAL OF MICROBIOLOGY ( 影响因子:2.419; 五年影响因子:2.35 )

ISSN:

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收录情况: SCI

摘要: Members of the genus Bacillus and related spore-forming genera are ubiquitous. However, Bacillus-like species isolated from marine sediments have attracted less interest than their terrestrial relatives. Here, we investigated the diversity of Bacillus-like bacterial communities in the sediments of the Bamenwan mangrove wetland in Hainan, China, using culture-dependent and culture-independent methods, and present the first report on this subject. We also discovered some potential novel species from the sediment samples. Four families, Bacillaceae (58%), Paenibacillaceae (22%), Alicyclobacillaceae (15%), and Planococcaceae (5%), and 9 genera, Bacillus (42%), Paenibacillus (16%), Halobacillus (13%), Alicyclobacillus (11%), Rummeliibacillus (5%), Cohnella (5%), Tumebacillus (4%), Pontibacillus (3%), and Aneurinibacillus (2%), were identified by pyrosequencing. In contrast, only 4 genera, Bacillus (57%), Paenibacillus (23%), Halobacillus (14%), and Virgibacillus (6%), were detected by the culture-dependent method. In the 16S rDNA sequencing analysis, the isolates HB12036 and HB12037 were closest to Bacillus okuhidensis Kh10-101(T) and Paenibacillus xylanilyticus XIL14(T) with similarities of 94.8% and 95.9%, respectively, indicating that these were novel species. Bacillus sp. HB12035 and HB12040 exhibited antimicrobial activity against Staphylococcus aureus ATCC 25923, and Bacillus sp. HB12033 exhibited antimicrobial activity against Ustilago scitaminea Syd.

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