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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：37/0  |  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.


  
Global picophytoplankton niche partitioning predicts overall positive response to ocean warming 期刊论文
NATURE GEOSCIENCE, 2020, 13 (2) : 116-+
作者:  Flombaum, Pedro;  Wang, Wei-Lei;  Primeau, Francois W.;  Martiny, Adam C.
收藏  |  浏览/下载：6/0  |  提交时间：2020/05/13
Towards Quantifying Carrion Biomass in Ecosystems 期刊论文
TRENDS IN ECOLOGY & EVOLUTION, 2019, 34 (10) : 950-961
作者:  Barton, Philip S.;  Evans, Maldwyn J.;  Foster, Claire N.;  Pechal, Jennifer L.;  Bump, Joseph K.;  Quaggiotto, M. -Martina;  Benbow, M. Eric
收藏  |  浏览/下载：5/0  |  提交时间：2019/11/27
Determinants of forest owners attitudes towards wood ash recycling in Sweden - Can the nutrient cycle be closed? 期刊论文
ECOLOGICAL ECONOMICS, 2019, 164
作者:  Ouvrard, Benjamin;  Abildtrup, Jens;  Bostedt, Goran;  Stenger, Anne
收藏  |  浏览/下载：7/0  |  提交时间：2019/11/27
Wood ash recycling  Choice experiment  Environmental sensitivity  Theory of Planned Behaviour  
Climate and fishing drive regime shifts in consumer-mediated nutrient cycling in kelp forests 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (9) : 3179-3192
作者:  Peters, Joseph R.;  Reed, Daniel C.;  Burkepile, Deron E.
收藏  |  浏览/下载：9/0  |  提交时间：2019/11/27
Dissolution Dominates Silica Cycling in a Shelf Sea Autumn Bloom 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (12) : 6765-6774
作者:  Poulton, Alex J.;  Mayers, Kyle M. J.;  Daniels, Christopher J.;  Stinchcombe, Mark C.;  Woodward, E. Malcolm S.;  Hopkins, Joanne;  Wihsgott, Julianne U.;  Widdicombe, Claire E.
收藏  |  浏览/下载：5/0  |  提交时间：2019/11/26
diatoms  silica  dissolution  coastal  autumn  bloom  
Strategies to reduce the global carbon footprint of plastics 期刊论文
NATURE CLIMATE CHANGE, 2019, 9 (5) : 374-+
作者:  Zheng, Jiajia;  Suh, Sangwon
收藏  |  浏览/下载：8/0  |  提交时间：2019/11/26
Insights into HOx and ROx chemistry in the boreal forest via measurement of peroxyacetic acid, peroxyacetic nitric anhydride (PAN) and hydrogen peroxide 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2018, 18 (18) : 13457-13479
作者:  Crowley, John N.;  Pouvesle, Nicolas;  Phillips, Gavin J.;  Axinte, Raoul;  Fischer, Horst;  Petaja, Tuukka;  Noelscher, Anke;  Williams, Jonathan;  Hens, Korbinian;  Harder, Hartwig;  Martinez-Harder, Monica;  Novelli, Anna;  Kubistin, Dagmar;  Bohn, Birger;  Lelieveld, Jos
收藏  |  浏览/下载：8/0  |  提交时间：2019/04/09
Defining a land boundary for sustainable livestock consumption 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (9) : 4185-4194
作者:  Van Zanten, Hannah H. E.;  Herrero, Mario;  Van Hal, Ollie;  Roos, Elin;  Muller, Adrian;  Garnett, Tara;  Gerber, Pierre J.;  Schader, Christian;  De Boer, Imke J. M.
收藏  |  浏览/下载：5/0  |  提交时间：2019/04/09
animal source food  greenhouse gas emissions  land boundary  land use  leftovers  livestock  recycling biomass  sustainable consumption  sustainable development goals  
Examining the efficiency of biomass energy: Evidence from the Chinese recycling industry 期刊论文
ENERGY POLICY, 2018, 119: 77-86
作者:  Xu, Xin-long;  Chen, Hsing Hung
收藏  |  浏览/下载：4/0  |  提交时间：2019/04/09
Recycling enterprises  Biomass energy  Stochastic frontier analysis (SFA)  Technical efficiency