Diversity and Spatial Distribution of Hydrazine Oxidoreductase (hzo) Gene in the Oxygen Minimum Zone Off Costa Rica
Kong, Liangliang1; Jing, Hongmei1,2; Kataoka, Takafumi1; Buchwald, Carolyn3; Liu, Hongbin1
2013-10-31
发表期刊PLOS ONE
卷号8期号:10
摘要Anaerobic ammonia oxidation (anammox) as an important nitrogen loss pathway has been reported in marine oxygen minimum zones (OMZs), but the community composition and spatial distribution of anammox bacteria in the eastern tropical North Pacific (ETNP) OMZ are poorly determined. In this study, anammox bacterial communities in the OMZ off Costa Rica (CRD-OMZ) were analyzed based on both hydrazine oxidoreductase (hzo) genes and their transcripts assigned to cluster 1 and 2. The anammox communities revealed by hzo genes and proteins in CRD-OMZ showed a low diversity. Gene quantification results showed that hzo gene abundances peaked in the upper OMZs, associated with the peaks of nitrite concentration. Nitrite and oxygen concentrations may therefore colimit the distribution of anammox bacteria in this area. Furthermore, transcriptional activity of anammox bacteria was confirmed by obtaining abundant hzo mRNA transcripts through qRT-PCR. A novel hzo cluster 2x clade was identified by the phylogenetic analysis and these novel sequences were abundant and widely distributed in this environment. Our study demonstrated that both cluster 1 and 2 anammox bacteria play an active role in the CRD-OMZ, and the cluster 1 abundance and transcriptional activity were higher than cluster 2 in both free-living and particle-attached fractions at both gene and transcriptional levels.
文章类型Article
WOS标题词Science & Technology
DOI10.1371/journal.pone.0078275
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收录类别SCI
语种英语
关键词[WOS]ANAEROBIC AMMONIUM OXIDATION ; TROPICAL SOUTH-PACIFIC ; ANAMMOX BACTERIA ; OXIDIZING BACTERIA ; NITROGEN-CYCLE ; MULTIHEME PROTEIN ; UPWELLING SYSTEM ; NORTHERN CHILE ; RIVER ESTUARY ; MARINE
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000326373800016
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.idsse.ac.cn/handle/183446/738
专题深海科学研究部_深海生物学研究室_海洋微生物分子生态学研究组
作者单位1.Hong Kong Univ Sci & Technol, Div Life Sci, Kowloon, Hong Kong, Peoples R China
2.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya, Peoples R China
3.Woods Hole Oceanog Inst, MIT WHOI Joint Program Chem Oceanog, Woods Hole, MA 02543 USA
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Kong, Liangliang,Jing, Hongmei,Kataoka, Takafumi,et al. Diversity and Spatial Distribution of Hydrazine Oxidoreductase (hzo) Gene in the Oxygen Minimum Zone Off Costa Rica[J]. PLOS ONE,2013,8(10).
APA Kong, Liangliang,Jing, Hongmei,Kataoka, Takafumi,Buchwald, Carolyn,&Liu, Hongbin.(2013).Diversity and Spatial Distribution of Hydrazine Oxidoreductase (hzo) Gene in the Oxygen Minimum Zone Off Costa Rica.PLOS ONE,8(10).
MLA Kong, Liangliang,et al."Diversity and Spatial Distribution of Hydrazine Oxidoreductase (hzo) Gene in the Oxygen Minimum Zone Off Costa Rica".PLOS ONE 8.10(2013).
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