Spatial Variations of the Methanogenic Communities in the Sediments of Tropical Mangroves
文献类型：期刊论文
| 作者 | Cheung, Shunyan4; Liu, Hongbin4; Nagarajan, Sanjay1; Wu, Chen1; Zhou, Zhi1,2,3; Jing, Hongmei5
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| 刊名 | PLOS ONE
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| 出版日期 | 2016-09-29 |
| 卷号 | 11期号:9 |
| DOI | 10.1371/journal.pone.0161065 |
| 文献子类 | Article |
| 英文摘要 | Methane production by methanogens in mangrove sediments is known to contribute significantly to global warming, but studies on the shift of methanogenic community in response to anthropogenic contaminations were still limited. In this study, the effect of anthropogenic activities in the mangrove sediments along the north and south coastlines of Singapore were investigated by pyrosequencing of the mcrA gene. Our results showed that hydrogenotrophic, acetoclastic and methylotrophic methanogens coexist in the sediments. The predominance of the methylotrophic Methanosarcinales reflects the potential for high methane production as well as the possible availability of low acetate and high methylated C-1 compounds as substrates. A decline in the number of acetoclastic/methylotrophic methanogens in favor of hydrogenotrophic methanogens was observed along a vertical profile in Sungei Changi, which was contaminated by heavy metals. The diversity of methanogens in the various contaminated stations was significantly different from that in a pristine St. John's Island. The spatial variation in the methanogenic communities among the different stations was more distinct than those along the vertical profiles at each station. We suggest that the overall heterogeneity of the methanogenic communities residing in the tropical mangrove sediments might be due to the accumulated effects of temperature and concentrations of nitrate, cobalt, and nickel. |
| WOS关键词 | COENZYME-M REDUCTASE ; FRESH-WATER LAKE ; RICE FIELD SOIL ; PHYLOGENETIC DIVERSITY ; ECOLOGICAL DIVERSITY ; ATMOSPHERIC METHANE ; SULFATE REDUCTION ; MCRA GENE ; SP NOV. ; ARCHAEA |
| 语种 | 英语 |
| WOS记录号 | WOS:000384328500007 |
| 源URL | [http://ir.idsse.ac.cn/handle/183446/1643]  |
| 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.Natl Univ Singapore, Fac Engn, Dept Civil & Environm Engn, Singapore, Singapore 2.Purdue Univ, Sch Civil Engn, W Lafayette, IN 47907 USA 3.Purdue Univ, Div Environm & Ecol Engn, W Lafayette, IN 47907 USA 4.Hong Kong Univ Sci & Technol, Div Life Sci, Kowloon, Hong Kong, Peoples R China 5.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheung, Shunyan,Liu, Hongbin,Nagarajan, Sanjay,et al. Spatial Variations of the Methanogenic Communities in the Sediments of Tropical Mangroves[J]. PLOS ONE,2016,11(9). |
| APA | Cheung, Shunyan,Liu, Hongbin,Nagarajan, Sanjay,Wu, Chen,Zhou, Zhi,&Jing, Hongmei.(2016).Spatial Variations of the Methanogenic Communities in the Sediments of Tropical Mangroves.PLOS ONE,11(9). |
| MLA | Cheung, Shunyan,et al."Spatial Variations of the Methanogenic Communities in the Sediments of Tropical Mangroves".PLOS ONE 11.9(2016). |
入库方式： OAI收割
来源：深海科学与工程研究所
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