Periodic and Spatial Spreading of Alkanes and Alcanivorax Bacteria in Deep Waters of the Mariana Trench | |
Wang, Yong1; Han, Zhuang1; Li, Wen Li1,2; Huang, Jiao-Mei1,2; Zhang, Pei-Wei1; Cui, Guo-Jie1,2; Wei, Zhan-Fei1,2; Wu, Yu-Zhi1,2; Gao, Zhao-Ming1 | |
刊名 | APPLIED AND ENVIRONMENTAL MICROBIOLOGY |
2019-02-01 | |
卷号 | 85期号:3页码:13 |
关键词 | Alcanivorax Alkanes Deep Sea Subduction Zone |
ISSN号 | 0099-2240 |
DOI | 10.1128/AEM.02089-18 |
英文摘要 | In subduction zones, serpentinization and biological processes may release alkanes to the deep waters, which would probably result in the rapid spread of Akanivorax. However, the timing and area of the alkane distribution and associated enrichment of alkane-degrading microbes in the dark world of the deep ocean have not been explored. In this study, we report the richness (up to 17.8%) of alkane-degrading bacteria, represented by Alcanivorax jadensis, in deep water samples obtained at 3,000 to 6,000 m in the Mariana Trench in two cruises. The relative abundance of A. jadensis correlated with copy numbers of functional almA and alkB genes, which are involved in alkane degradation. In these water samples, we detected a high flux of alkanes, which probably resulted in the prevalence of A. jadensis in the deep waters. Contigs of A. jadensis were binned from the metagenomes for examination of alkane degradation pathways and deep sea-specific pathways, which revealed a lack of nitrate and nitrite dissimilatory reduction in our A. jadensis strains. Comparing the results for the two cruises conducted close to each other, we suggest periodic release of alkanes that may spread widely but periodically in the trench. Distribution of alkane-degrading bacteria in the world's oceans suggests the periodic and remarkable contributions of Alcanivorax to the deep sea organic carbon and nitrogen sources. IMPORTANCE In the oligotrophic environment of the Mariana Trench, alkanes as carbohydrates are important for the ecosystem, but their spatial and periodic spreading in deep waters has never been reported. Alkane-degrading bacteria such as Alcanivorax spp. are biological signals of the alkane distribution. In the present study, Alcanivorax was abundant in some waters, at depths of up to 6,000 m, in the Mariana Trench. Genomic, transcriptomic, and chemical analyses provide evidence for the presence and activities of Alcanivorax jadensis in deep sea zones. The periodic spreading of alkanes, probably from the subductive plates, might have fundamentally modified the local microbial communities, as well as perhaps the deep sea microenvironment. |
资助项目 | National Science Foundation of China[31460001] ; National Science Foundation of China[41476104] ; Strategic Priority Research Program B of the Chinese Academy of Sciences[XDB06010201] ; National Key Research and Development Program of China[2016YFC0302500] |
WOS关键词 | Carbon ; Hydrocarbons ; Identification ; Borkumensis ; Degradation ; Environment ; Sequences ; Ecosystem ; Genomes ; Methane |
WOS研究方向 | Biotechnology & Applied Microbiology ; Microbiology |
语种 | 英语 |
出版者 | AMER SOC MICROBIOLOGY |
WOS记录号 | WOS:000456412800012 |
资助机构 | National Science Foundation of China ; Strategic Priority Research Program B of the Chinese Academy of Sciences ; National Key Research and Development Program of China |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.idsse.ac.cn/handle/183446/6505] |
专题 | 深海科学研究部_深海生物学研究室_海洋微生物宏基因组与分子进化研究组 深海科学研究部_深海生物学研究室_深海微生物活性物质研究组 |
通讯作者 | Wang, Yong |
作者单位 | 1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Hainan, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Yong,Han, Zhuang,Li, Wen Li,et al. Periodic and Spatial Spreading of Alkanes and Alcanivorax Bacteria in Deep Waters of the Mariana Trench[J]. APPLIED AND ENVIRONMENTAL MICROBIOLOGY,2019,85(3):13. |
APA | Wang, Yong.,Han, Zhuang.,Li, Wen Li.,Huang, Jiao-Mei.,Zhang, Pei-Wei.,...&Gao, Zhao-Ming.(2019).Periodic and Spatial Spreading of Alkanes and Alcanivorax Bacteria in Deep Waters of the Mariana Trench.APPLIED AND ENVIRONMENTAL MICROBIOLOGY,85(3),13. |
MLA | Wang, Yong,et al."Periodic and Spatial Spreading of Alkanes and Alcanivorax Bacteria in Deep Waters of the Mariana Trench".APPLIED AND ENVIRONMENTAL MICROBIOLOGY 85.3(2019):13. |
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