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Volcanic ash inputs enhance the deep-sea seabed metal-biogeochemical cycle: A case study in the Yap Trench, western Pacific Ocean

文献类型：期刊论文

作者Li, Ling1,2; Bai, Shijie1; Li, Jiwei1,3; Wang, Shiming4; Tang, Limei5; Dasgupta, Shamik1; Tang, Yongjie1; Peng, Xiaotong1
刊名MARINE GEOLOGY
出版日期2020-12-01
卷号430页码:9
关键词Volcanic ash Metal-rich minerals Fe-metabolizing bacteria Fe uptake Metal-biogeochemical cycle
ISSN号0025-3227
DOI10.1016/j.margeo.2020.106340
英文摘要Although volcanic ash deposition into oceans has been a frequent phenomenon for much of geologic history, the potential effects on deep-sea seabed metal-biogeochemical cycles remain enigmatic. In this study, we analyzed mineral compositions, microbial communities, and metal-related functional genes in a sediment core with volcanic ash layers from the Yap Trench in the western Pacific Ocean. The mineralogical analysis showed that volcanic activity introduced large amounts of Fe-rich igneous minerals, such as olivine, pyroxene, hornblende, grossularite, and biotite, into the trench seabed sedimentary environments. Furthermore, some differentiation in microbial communities was observed and potential Fe-metabolizing bacteria (such as Pseudomonas, Alteromonas, Marinobacter, Halomonas, Pseudoalteromonas, and Erythrobacter) were dominant in the volcanic ash layers. Moreover, compared with the background sediment metagenome, the volcanic ash metagenomes were enriched in pathways for siderophore synthesis and uptake, and metal resistant functional genes. These results suggest that volcanic ash can lead to changes in trench-sediment-based microbial communities and stimulate microbial Fe acquisition and other metal-related metabolism. In response, microorganisms could promote decomposition of the metal-rich volcanic minerals and metal release rates from them, subsequently enhancing the deep-sea metal-biogeochemical cycle.
资助项目National Key Research and Development Project of China[2017YFC0306604] ; National Key Research and Development Project of China[2017YFC0306702] ; National Natural Science Foundation of China[41576038] ; National Natural Science Foundation of China[41876050] ; Hainan Provincial Natural Science Foundation of China[419MS077] ; Youth Innovation Promotion Association CAS
WOS研究方向Geology ; Oceanography
语种英语
WOS记录号WOS:000595643300009
出版者ELSEVIER
资助机构National Key Research and Development Project of China ; National Natural Science Foundation of China ; Hainan Provincial Natural Science Foundation of China ; Youth Innovation Promotion Association CAS
源URL[http://ir.idsse.ac.cn/handle/183446/8444]  
专题深海科学研究部_深海生物学研究室_海洋病毒与分子生物学研究组
通讯作者Li, Jiwei; Peng, Xiaotong
作者单位1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
2.Minist Agr, Key Lab Dev & Applicat Rural Renewable Energy, Biogas Inst, Chengdu 610041, Peoples R China
3.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519000, Peoples R China
4.Southwest Jiaotong Univ, Sch Geosci & Environm Sci, Chengdu 610031, Peoples R China
5.MNR, Key Lab Submarine Geosci, Inst Oceanog 2, Hangzhou 310012, Peoples R China
推荐引用方式
GB/T 7714		 Li, Ling,Bai, Shijie,Li, Jiwei,et al. Volcanic ash inputs enhance the deep-sea seabed metal-biogeochemical cycle: A case study in the Yap Trench, western Pacific Ocean[J]. MARINE GEOLOGY,2020,430:9.
APA Li, Ling.,Bai, Shijie.,Li, Jiwei.,Wang, Shiming.,Tang, Limei.,...&Peng, Xiaotong.(2020).Volcanic ash inputs enhance the deep-sea seabed metal-biogeochemical cycle: A case study in the Yap Trench, western Pacific Ocean.MARINE GEOLOGY,430,9.
MLA Li, Ling,et al."Volcanic ash inputs enhance the deep-sea seabed metal-biogeochemical cycle: A case study in the Yap Trench, western Pacific Ocean".MARINE GEOLOGY 430(2020):9.

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来源：深海科学与工程研究所

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