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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.


  
Characterising the biophysical, economic and social impacts of soil carbon sequestration as a greenhouse gas removal technology 期刊论文
GLOBAL CHANGE BIOLOGY, 2019
作者:  Sykes, Alasdair J.;  Macleod, Michael;  Eory, Vera;  Rees, Robert M.;  Payen, Florian;  Myrgiotis, Vasilis;  Williams, Mathew;  Sohi, Saran;  Hillier, Jon;  Moran, Dominic;  Manning, David A. C.;  Goglio, Pietro;  Seghetta, Michele;  Williams, Adrian;  Harris, Jim;  Dondini, Marta;  Walton, Jack;  House, Joanna;  Smith, Pete
收藏  |  浏览/下载：10/0  |  提交时间：2019/11/27
4 per mille  agriculture  greenhouse gas removal  negative emissions  soil carbon sequestration  soil organic carbon  
Biogeographic variation in temperature sensitivity of decomposition in forest soils 期刊论文
GLOBAL CHANGE BIOLOGY, 2019
作者:  Li, Jinquan;  Nie, Ming;  Pendall, Elise;  Reich, Peter B.;  Pei, Junmin;  Noh, Nam Jin;  Zhu, Ting;  Li, Bo;  Fang, Changming
收藏  |  浏览/下载：9/0  |  提交时间：2019/11/27
carbon cycle  carbon cycle modelling  carbon decomposition  climate change  forest  Q(10)  spatial heterogeneity  temperature sensitivity  
Quantitative assessment of microbial necromass contribution to soil organic matter 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (11) : 3578-3590
作者:  Liang, Chao;  Amelung, Wulf;  Lehmann, Johannes;  Kaestner, Matthias
收藏  |  浏览/下载：12/0  |  提交时间：2019/11/27
amino sugar  ecosystem sustainability  microbial anabolism  microbial biomarker  microbial residue  soil organic carbon  
Increased microbial growth, biomass, and turnover drive soil organic carbon accumulation at higher plant diversity 期刊论文
GLOBAL CHANGE BIOLOGY, 2019
作者:  Prommer, Judith;  Walker, Tom W. N.;  Wanek, Wolfgang;  Braun, Judith;  Zezula, David;  Hu, Yuntao;  Hofhansl, Florian;  Richter, Andreas
收藏  |  浏览/下载：14/0  |  提交时间：2019/11/27
microbial activity  microbial carbon use efficiency  microbial necromass  microbial turnover  plant diversity  soil organic carbon  
Zones of influence for soil organic matter dynamics: A conceptual framework for data and models 期刊论文
GLOBAL CHANGE BIOLOGY, 2019
作者:  Cagnarini, Claudia;  Blyth, Eleanor;  Emmett, Bridget A.;  Evans, Chris D.;  Griffiths, Robert, I;  Keith, Aidan;  Jones, Laurence;  Lebron, Inma;  McNamara, Niall P.;  Puissant, Jeremy;  Reinsch, Sabine;  Robinson, David A.;  Rowe, Edwin C.;  Thomas, Amy R. C.;  Smart, Simon M.;  Whitaker, Jeanette;  Cosby, Bernard J.
收藏  |  浏览/下载：14/0  |  提交时间：2019/11/27
conceptual framework  connectivity  soil depth  SOM model  SOM persistence  sustainable land management  UNSDG-15  zones of influence  
The global soil community and its influence on biogeochemistry 期刊论文
SCIENCE, 2019, 365 (6455) : 772-+
作者:  Crowther, T. W.;  van den Hoogen, J.;  Wan, J.;  Mayes, M. A.;  Keiser, A. D.;  Mo, L.;  Averill, C.;  Maynard, D. S.
收藏  |  浏览/下载：35/0  |  提交时间：2019/11/27
Drought decreases incorporation of recent plant photosynthate into soil food webs regardless of their trophic complexity 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (10) : 3549-3561
作者:  Chomel, Mathilde;  Lavallee, Jocelyn M.;  Alvarez-Segura, Nil;  de Castro, Francisco;  Rhymes, Jennifer M.;  Caruso, Tancredi;  de Vries, Franciska T.;  Baggs, Elizabeth M.;  Emmerson, Mark C.;  Bardgett, Richard D.;  Johnson, David
收藏  |  浏览/下载：12/0  |  提交时间：2019/11/27
Acari  Collembola  microorganisms  plant-soil interaction  pulse-labelling  root-derived C  soil biodiversity  stable isotope  
Microbial community responses reduce soil carbon loss in Tibetan alpine grasslands under short-term warming 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (10) : 3438-3449
作者:  Li, Yaoming;  Lv, Wangwang;  Jiang, Lili;  Zhang, Lirong;  Wang, Shiping;  Wang, Qi;  Xue, Kai;  Li, Bowen;  Liu, Peipei;  Hong, Huan;  Renzen, Wangmu;  Wang, A.;  Luo, Caiyun;  Zhang, Zhenhua;  Dorji, Tsechoe;  Tas, Neslihan;  Wang, Zhezhen;  Zhou, Huakun;  Wang, Yanfen
收藏  |  浏览/下载：12/0  |  提交时间：2019/11/27
labile carbon limitation  microbial community response  soil heterotrophic respiration  soil incubation  soil respiration acclimation  
Long-term nitrogen addition modifies microbial composition and functions for slow carbon cycling and increased sequestration in tropical forest soil 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (10) : 3267-3281
作者:  Tian, Jing;  Dungait, Jennifer A. J.;  Lu, Xiankai;  Yang, Yunfeng;  Hartley, Iain P.;  Zhang, Wei;  Mo, Jiangming;  Yu, Guirui;  Zhou, Jizhong;  Kuzyakov, Yakov
收藏  |  浏览/下载：9/0  |  提交时间：2019/11/27
biogeochemical cycling  C and N turnover  global climate change  microbial functional community  N deposition  tropical forest