| Carbon fixation in sediments of Sino-Pacific seas -differential contributions of bacterial and archaeal domains | |
| Das, Anindita1,3,4; Cao, Wenrui1; Zhang, Hongjie2; Saren, Gaowa1; Jiang, Mingyu1; Yu, Xinke1 | |
| 2017-11-01 | |
| 发表期刊 | JOURNAL OF MARINE SYSTEMS
 |
| 卷号 | 175页码:15-23 |
| 文章类型 | Article |
| 摘要 | Oceanic stretches experiencing perpetual darkness and extreme limitation of utilizable organic matter often rely on chemosynthetic carbon (C)-fixation. However, C-fixation is not limited to carbon-deplete environments alone but might also occur in varying degrees in carbon-replete locales depending on the nature and concentration of utilizable carbon, electron donors and acceptors. Quantification of microbial C-fixation and relative contribution of domains bacteria and archaea are therefore crucial. The present experiment estimates the differential rates of C-fixation by archaea and bacteria along with the effects of different electron donors. Four Sino-Pacific marine sediments from Bashi strait (Western Pacific Warm Pool), East China Sea, South China Sea and Okinawa Trough were examined. Total microbial C-uptake was estimated by doping of aqueous (NaHCO3)-C-14. Total bacterial C-uptake was measured by blocking archaeal metabolism using inhibitor GC7. Archaeal contribution was estimated by subtracting total bacterial from total microbial C-uptake. Effect of electron donor addition was analyzed by spiking with ammonium, sulfide, and reduced metals. Results suggested that C-fixation in marine sediments was not the function of archaea alone, which was in contrast to results from several recent publications. C-fixing bacteria are also equally active. Often in spite of great effort of one domain to fix carbon, the system does not become net C-fixing due to equal and opposite C-releasing activity of the other domain. Thus a C-releasing bacterial or archaeal community can become C-fixing with the change of nature and concentration of electron donors. (C) 2017 Elsevier B.V. All rights reserved. |
| 关键词 | Carbon-fixation Chemosynthesis Archaea Marine Sediments Sino-pacific |
| DOI | 10.1016/j.jmarsys.2017.06.005 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000411420700002 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/143220 |
| 专题 | 海洋地质与环境重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Inst Biophys, 15 Datun Rd, Beijing 100101, Peoples R China 3.CSIR, Natl Inst Oceanog, Panaji 403004, Goa, India 4.MACS Agharkar Res Inst, GG Agarkar Rd, Pune 411004, Maharashtra, India |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Das, Anindita,Cao, Wenrui,Zhang, Hongjie,et al. Carbon fixation in sediments of Sino-Pacific seas -differential contributions of bacterial and archaeal domains[J]. JOURNAL OF MARINE SYSTEMS,2017,175:15-23. |
| APA | Das, Anindita,Cao, Wenrui,Zhang, Hongjie,Saren, Gaowa,Jiang, Mingyu,&Yu, Xinke.(2017).Carbon fixation in sediments of Sino-Pacific seas -differential contributions of bacterial and archaeal domains.JOURNAL OF MARINE SYSTEMS,175,15-23. |
| MLA | Das, Anindita,et al."Carbon fixation in sediments of Sino-Pacific seas -differential contributions of bacterial and archaeal domains".JOURNAL OF MARINE SYSTEMS 175(2017):15-23. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Carbon fixation in s（827KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论