Residence of habitat-specific anammox bacteria in the deep-sea subsurface sediments of the South China Sea: analyses of marker gene abundance with physical chemical parameters.
Residence of habitat-specific anammox bacteria in the deep-sea subsurface sediments of the South China Sea: analyses of marker gene abundance with physical chemical parameters.
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南海深海地下沉积物中栖息地特异性厌氧氨氧化细菌的栖息地：利用物理化学参数分析标记基因丰度
DOI：
10.1007/s00248-011-9849-0
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发表时间：
2011-07
影响因子：
3.6
通讯作者：
Gu, Ji-Dong
中科院分区：
文献类型：
--
作者：
Hong, Yi-Guo;Li, Meng;Cao, Huiluo;Gu, Ji-Dong
Anaerobic ammonium oxidation (anammox) has been recognized as an important process for the global nitrogen cycle. In this study, the occurrence and diversity of anammox bacteria in the deep-sea subsurface sediments of the South China Sea (SCS) were investigated. Results indicated that the anammox bacterial sequences recovered from this habitat by amplifying both 16S rRNA gene and hydrazine oxidoreductase encodinghzogene were all closely related to theCandidatusScalindua genus. A total of 96 16S rRNA gene sequences from 346 clones were grouped into five subclusters: two subclusters affiliated with the brodae and arabica species, while three new subclusters named zhenghei-I, -II, and -III showed ≤97.4% nucleic acid sequence identity with other knownCandidatusScalindua species. Meanwhile, 88hzogene sequences from the sediments also formed five distant subclusters within hzo cluster 1c. Through fluorescent real-time PCR analysis, the abundance of anammox bacteria in deep-sea subsurface sediment was quantified byhzogenes, which ranged from 1.19 × 104to 7.17 × 104copies per gram of dry sediments. Combining all the information from this study, diverseCandidatusScalindua anammox bacteria were found in the deep-sea subsurface sediments of the SCS, and they could be involved in the nitrogen loss from the fixed inventory in the habitat.
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影响因子：
64.8
作者：
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通讯作者：
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影响因子：
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