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生物-碳计划:生物对未来海洋碳储存的影响 快报文章
资源环境快报,2022年第22期
作者:  吴秀平
Microsoft Word(17Kb)  |  收藏  |  浏览/下载:648/1  |  提交时间:2022/12/01
BIO-Carbon  ocean storage of carbon  
Recycling and metabolic flexibility dictate life in the lower oceanic crust 期刊论文
NATURE, 2020, 579 (7798) : 250-+
作者:  Zhou, Peng;  Yang, Xing-Lou;  Wang, Xian-Guang;  Hu, Ben;  Zhang, Lei;  Zhang, Wei;  Si, Hao-Rui;  Zhu, Yan;  Li, Bei;  Huang, Chao-Lin;  Chen, Hui-Dong;  Chen, Jing;  Luo, Yun;  Guo, Hua;  Jiang, Ren-Di;  Liu, Mei-Qin;  Chen, Ying;  Shen, Xu-Rui;  Wang, Xi;  Zheng, Xiao-Shuang;  Zhao, Kai;  Chen, Quan-Jiao;  Deng, Fei;  Liu, Lin-Lin;  Yan, Bing;  Zhan, Fa-Xian;  Wang, Yan-Yi;  Xiao, Geng-Fu;  Shi, Zheng-Li
收藏  |  浏览/下载:60/0  |  提交时间:2020/05/13

The lithified lower oceanic crust is one of Earth'  s last biological frontiers as it is difficult to access. It is challenging for microbiota that live in marine subsurface sediments or igneous basement to obtain sufficient carbon resources and energy to support growth(1-3) or to meet basal power requirements(4) during periods of resource scarcity. Here we show how limited and unpredictable sources of carbon and energy dictate survival strategies used by low-biomass microbial communities that live 10-750 m below the seafloor at Atlantis Bank, Indian Ocean, where Earth'  s lower crust is exposed at the seafloor. Assays of enzyme activities, lipid biomarkers, marker genes and microscopy indicate heterogeneously distributed and viable biomass with ultralow cell densities (fewer than 2,000 cells per cm(3)). Expression of genes involved in unexpected heterotrophic processes includes those with a role in the degradation of polyaromatic hydrocarbons, use of polyhydroxyalkanoates as carbon-storage molecules and recycling of amino acids to produce compounds that can participate in redox reactions and energy production. Our study provides insights into how microorganisms in the plutonic crust are able to survive within fractures or porous substrates by coupling sources of energy to organic and inorganic carbon resources that are probably delivered through the circulation of subseafloor fluids or seawater.


  
Deciphering Patterns and Drivers of Heat and Carbon Storage in the Southern Ocean 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (6) : 3359-3367
作者:  Chen, Haidi;  Morrison, Adele K.;  Dufour, Carolina O.;  Sarmiento, Jorge L.
收藏  |  浏览/下载:13/0  |  提交时间:2019/11/26
excess heat storage  excess carbon storage  Southern Ocean  residual overturning circulation  
Shallow particulate organic carbon regeneration in the South Pacific Ocean 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2019, 116 (20) : 9753-9758
作者:  Pavia, Frank J.;  Anderson, Robert F.;  Lam, Phoebe J.;  Cael, B. B.;  Vivancos, Sebastian M.;  Fleisher, Martin Q.;  Lu, Yanbin;  Zhang, Pu;  Cheng, Hai;  Edwards, R. Lawrence
收藏  |  浏览/下载:22/0  |  提交时间:2019/11/27
biological pump  ocean carbon storage  oxygen-deficient zones  GEOTRACES  thorium  
Polar zoobenthos blue carbon storage increases with sea ice losses, because across-shelf growth gains from longer algal blooms outweigh ice scour mortality in the shallows 期刊论文
GLOBAL CHANGE BIOLOGY, 2017, 23 (12)
作者:  Barnes, David K. A.
收藏  |  浏览/下载:14/0  |  提交时间:2019/04/09
benthos  blue carbon capture and storage  phytoplankton  response to climate change  Southern Ocean