Diversity and Spatial Distribution of Hydrazine Oxidoreductase (hzo) Gene in the Oxygen Minimum Zone Off Costa Rica
文献类型：期刊论文
| 作者 | Liu, Hongbin1; Buchwald, Carolyn3; Kataoka, Takafumi1; Jing, Hongmei1,2 ; Kong, Liangliang1
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| 刊名 | PLOS ONE
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| 出版日期 | 2013-10-31 |
| 卷号 | 8期号:10 |
| DOI | 10.1371/journal.pone.0078275 |
| 文献子类 | Article |
| 英文摘要 | 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. |
| URL标识 | 查看原文 |
| WOS关键词 | ANAEROBIC AMMONIUM OXIDATION ; TROPICAL SOUTH-PACIFIC ; ANAMMOX BACTERIA ; OXIDIZING BACTERIA ; NITROGEN-CYCLE ; MULTIHEME PROTEIN ; UPWELLING SYSTEM ; NORTHERN CHILE ; RIVER ESTUARY ; MARINE |
| 语种 | 英语 |
| WOS记录号 | WOS:000326373800016 |
| 版本 | 出版稿 |
| 源URL | [http://124.16.218.2:8080/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 |
| 推荐引用方式 GB/T 7714 | Liu, Hongbin,Buchwald, Carolyn,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 | Liu, Hongbin,Buchwald, Carolyn,Kataoka, Takafumi,Jing, Hongmei,&Kong, Liangliang.(2013).Diversity and Spatial Distribution of Hydrazine Oxidoreductase (hzo) Gene in the Oxygen Minimum Zone Off Costa Rica.PLOS ONE,8(10). |
| MLA | Liu, Hongbin,et al."Diversity and Spatial Distribution of Hydrazine Oxidoreductase (hzo) Gene in the Oxygen Minimum Zone Off Costa Rica".PLOS ONE 8.10(2013). |
入库方式： OAI收割
来源：深海科学与工程研究所
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