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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.


  
Evaluation of corrected APHRODITE estimates for hydrological simulation in the Yarlung Tsangpo-Brahmaputra River Basin 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019
作者:  Luo, Xian;  Fan, Xuemei;  Ji, Xuan;  Li, Yungang
收藏  |  浏览/下载：13/0  |  提交时间：2020/02/17
APHRODITE  bias correction  elevation bands method  hydrological simulation  international river  the Yarlung Tsangpo-Brahmaputra River Basin  
500-year tree-ring reconstruction of Salween River streamflow related to the history of water supply in Southeast Asia 期刊论文
CLIMATE DYNAMICS, 2019, 53 (11) : 6595-6607
作者:  Chen, Feng;  Shang, Huaming;  Panyushkina, Irina;  Meko, David;  Li, Jinbao;  Yuan, Yujiang;  Yu, Shulong;  Chen, Fahu;  He, Daming;  Luo, Xian
收藏  |  浏览/下载：10/0  |  提交时间：2020/02/17
Southern Tibetan Plateau  Tree rings  Salween River  Streamflow reconstruction  
500-year tree-ring reconstruction of Salween River streamflow related to the history of water supply in Southeast Asia (vol 53, pg 6595, 2019) 期刊论文
CLIMATE DYNAMICS, 2019, 53 (11) : 6609-6610
作者:  Chen, Feng;  Shang, Huaming;  Panyushkina, Irina;  Meko, David;  Li, Jinbao;  Yuan, Yujiang;  Yu, Shulong;  Chen, Fahu;  He, Daming;  Luo, Xian
收藏  |  浏览/下载：8/0  |  提交时间：2020/02/17
Structure of Schlafen13 reveals a new class of tRNA/rRNA- targeting RNase engaged in translational control 期刊论文
NATURE COMMUNICATIONS, 2018, 9
作者:  Yang, Jin-Yu;  Deng, Xiang-Yu;  Li, Yi-Sheng;  Ma, Xian-Cai;  Feng, Jian-Xiong;  Yu, Bing;  Chen, Yang;  Luo, Yi-Ling;  Wang, Xi;  Chen, Mei-Ling;  Fang, Zhi-Xin;  Zheng, Fu-Xiang;  Li, Yi-Ping;  Zhong, Qian;  Kang, Tie-Bang;  Song, Li-Bing;  Xu, Rui-Hua;  Zeng, Mu-Sheng;  Chen, Wei;  Zhang, Hui;  Xie, Wei;  Gao, Song
收藏  |  浏览/下载：10/0  |  提交时间：2019/11/27