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南海南部陆坡表层沉积物细菌和古菌多样性
引用本文:李涛,王鹏,汪品先.南海南部陆坡表层沉积物细菌和古菌多样性[J].微生物学报,2008,48(3):323-329.
作者姓名:李涛  王鹏  汪品先
作者单位:同济大学海洋地质国家重点实验室,上海,200092
基金项目:国家重点基础研究发展计划(973计划) , 国家自然科学基金 , 同济大学青年优秀人才培养行动计划
摘    要:从南海南部陆坡表层沉积物中扩增了细菌和古菌16S rDNA序列,并对克隆子文库进行系统发育分析.细菌序列以变形杆菌(Proteobacteria)居多,其次是浮霉菌(Planctomycete)、酸杆菌(Acidobacteria)和candidate division OP10,另外还有少量铁还原杆菌(Deferrobacteres)、candidate division OP3、OP11、OP8、TM6、疣微菌(Verrucomicrobia)和螺旋体(Spirochaetes).古菌序列分别来自泉古生菌(Crenarchaeota)和广古生菌(Euryarchaeota),以Marine Benthic Group B(MBGB)、MarineCrenarchaeotic Group Ⅰ(MGⅠ)、Marine Benthic Group D(MBGD)和South African Gold Mine Euryarchaeotic Group(SAGMEG)为主.少量序列为C3、甲烷杆菌(Methanobacteriales)和Novel Euryarchaeotic Group(NEG).结果表明海底表层沉积物中有丰富多样的微生物群落.

关 键 词:南海  沉积物  16S  rDNA  多样性  南海南部  陆坡  海底表层沉积物  细菌  古菌  the  South  China  Sea  slope  south  surface  sediment  diversity  微生物群落  丰富多样  结果  Novel  甲烷  African  Gold  Mine  Marine  Group
文章编号:0001-6209(2008)03-0323-07
收稿时间:2007-07-31
修稿时间:2007-11-08

Bacterial and archaeal diversity in surface sediment from the south slope of the South China Sea
Tao Li,Peng Wang and Pinxian Wang.Bacterial and archaeal diversity in surface sediment from the south slope of the South China Sea[J].Acta Microbiologica Sinica,2008,48(3):323-329.
Authors:Tao Li  Peng Wang and Pinxian Wang
Institution:State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China;State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China;State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China
Abstract:Diversity of bacteria and archaea was studied in deep marine sediments by PCR amplification and sequence analysis of 16S rDNA. Sample analysed was from IMAGES (International Marine Past Global Change Study) 147 at site of the south slope of the South China Sea. DNA was amplified from samples at the surface layer of core MD05-2896. Phylogenetic analysis of clone libraries showed a wide variety of uncultured bacteria and archeae. The most abundant bacterial sequences (phylotypes) corresponded to the Proteobacteria, followed by the Planctomycete, Acidobacteria and candidate division OP10. Phylotypes ascribing to Deferrobacteres, Verrucomicrobia, Spirochaetes and candidate division clades of OP3, OP11, OP8 and TM6 were also identified. Archaeal 16S rDNA sequences were within phylums of Crenarchaeota and Euryarchaeota, respectively. The majority of archaeal phylotypes were Marine Benthic Group B (MBGB), Marine Crenarchaeotic Group I (MG I), Marine Benthic Group D (MBGD) and South African Gold Mine Euryarchaeotic Group (SAGMEG). Additional sequences grouped with the C3, Methanobacteriales and Novel Euryarchaeotic Group (NEG). These results indicate that bacteria and archaea are abundant and diversified in surface environment of subseafloor sediments.
Keywords:the South China Sea  Sediment  16S rDNA  Diversity
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