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Adaptation of SARS-CoV-2 in BALB/c mice for testing vaccine efficacy 期刊论文
Science, 2020
作者:  Hongjing Gu;  Qi Chen;  Guan Yang;  Lei He;  Hang Fan;  Yong-Qiang Deng;  Yanxiao Wang;  Yue Teng;  Zhongpeng Zhao;  Yujun Cui;  Yuchang Li;  Xiao-Feng Li;  Jiangfan Li;  Na-Na Zhang;  Xiaolan Yang;  Shaolong Chen;  Yan Guo;  Guangyu Zhao;  Xiliang Wang;  De-Yan Luo;  Hui Wang;  Xiao Yang;  Yan Li;  Gencheng Han;  Yuxian He;  Xiaojun Zhou;  Shusheng Geng;  Xiaoli Sheng;  Shibo Jiang;  Shihui Sun;  Cheng-Feng Qin;  Yusen Zhou
收藏  |  浏览/下载：17/0  |  提交时间：2020/09/30
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.