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Stocks and losses of soil organic carbon from Chinese vegetated coastal habitats 期刊论文
Global Change Biology, 2020
作者:  Chuancheng Fu;  Yuan Li;  Lin Zeng;  Haibo Zhang;  Chen Tu;  Qian Zhou;  Kuanxu Xiong;  Jiaping Wu;  Carlos M. Duarte;  Peter Christie;  Yongming Luo
收藏  |  浏览/下载：11/0  |  提交时间：2020/09/30
Low thermal conductivity of iron-silicon alloys at Earth's core conditions with implications for the geodynamo 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Hsieh, Wen-Pin;  Goncharov, Alexander F.;  Labrosse, Stephane;  Holtgrewe, Nicholas;  Lobanov, Sergey S.;  Chuvashova, Irina;  Deschamps, Frederic;  Lin, Jung-Fu
收藏  |  浏览/下载：12/0  |  提交时间：2020/07/06
Plastic pollution in croplands threatens long‐term food security 期刊论文
Global Change Biology, 2020
作者:  Dan Zhang;  Ee Ling Ng;  Wanli Hu;  Hongyuan Wang;  Pablo Galaviz;  Hude Yang;  Wentao Sun;  Chongxiao Li;  Xingwang Ma;  Bin Fu;  Peiyi Zhao;  Fulin Zhang;  Shuqin Jin;  Mingdong Zhou;  Lianfeng Du;  Chang Peng;  Xuejun Zhang;  Zhiyu Xu;  Bin Xi;  Xiaoxia Liu;  Shiyou Sun;  Zhenhua Cheng;  Lihua Jiang;  Yufeng Wang;  Liang Gong;  Changlin Kou;  Yan Li;  Youhua Ma;  Dongfeng Huang;  Jian Zhu;  Jianwu Yao;  Chaowen Lin;  Song Qin;  Liuqiang Zhou;  Binghui He;  Deli Chen;  Huanchun Li;  Limei Zhai;  Qiuliang Lei;  Shuxia Wu;  Yitao Zhang;  Junting Pan;  Baojing Gu;  Hongbin Liu
收藏  |  浏览/下载：13/0  |  提交时间：2020/05/13
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.