Warming-driven migration of core microbiota indicates soil property changes at continental scale  

增温驱动的核心微生物的迁移可指示土壤属性的改变

作　　者：Shang Wang Xuelian Bao Kai Feng Ye Deng Wenjun Zhou Pengshuai Shao Tiantian Zheng Fei Yao Shan Yang Shengen Liu Rongjiu Shi Zhen Bai Hongtu Xie Jinghua Yu Ying Zhang Yiping Zhang Liqing Sha Qinghai Song Yuntong Liu Jizhong Zhou Yuguang Zhang Hui Li Qingkui Wang Xingguo Han Yongguan Zhu Chao Liang 王尚;鲍雪莲;冯凯;邓晔;周文君;邵鹏帅;郑甜甜;姚飞;杨山;刘圣恩;史荣久;白震;解宏图;于景华;张颖;张一平;沙丽清;宋清海;刘运通;周集中;张于光;李慧;王清奎;韩兴国;朱永官;梁超(Key Laboratory of Environmental Biotechnology,Research Center for Eco-Environmental Science,Chinese Academy of Sciences,Beijing 100085,China;Key Laboratory of Forest Ecology and Management,Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016,China;Key Laboratory of Tropical Forest Ecology,Xishuangbanna Tropical Botanical Garden,Chinese Academy of Sciences,Xishuangbanna 666303,China;Institute for Environmental Genomics,Department of Microbiology and Plant Biology,School of Civil Engineering and Environmental Sciences,University of Oklahoma,Norman 73019 OK,USA;Institute of Forest Ecology,Environment and Protection,and the Key Laboratory of Forest Ecology and Environment of State Forestry Administration,Chinese Academy of Forestry,Beijing 100091,China;Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China;State Key Laboratory of Urban and Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;Key Laboratory of Urban Environment and Health,Institute of Urban Environment,Chinese Academy of Sciences,Xiamen 361021,China;College of Resources and Environment,University of Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]Key Laboratory of Environmental Biotechnology,Research Center for Eco-Environmental Science,Chinese Academy of Sciences,Beijing 100085,China [2]Key Laboratory of Forest Ecology and Management,Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016,China [3]Key Laboratory of Tropical Forest Ecology,Xishuangbanna Tropical Botanical Garden,Chinese Academy of Sciences,Xishuangbanna 666303,China [4]Institute for Environmental Genomics,Department of Microbiology and Plant Biology,School of Civil Engineering and Environmental Sciences,University of Oklahoma,Norman 73019 OK,USA [5]Institute of Forest Ecology,Environment and Protection,and the Key Laboratory of Forest Ecology and Environment of State Forestry Administration,Chinese Academy of Forestry,Beijing 100091,China [6]Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China [7]State Key Laboratory of Urban and Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China [8]Key Laboratory of Urban Environment and Health,Institute of Urban Environment,Chinese Academy of Sciences,Xiamen 361021,China [9]College of Resources and Environment,University of Chinese Academy of Sciences,Beijing 100190,China

出　　处：《Science Bulletin》2021年第19期2025-2035,M0004,共12页科学通报（英文版）

基　　金：supported by the Strategic Priority Research Program of Chinese Academy of Sciences(XDB15010300);the National Science Foundation of China(U1602234,41807316,41471218,41501282,and 31870467);the CAS 135 project(2017XTBG-F01);the National Key Research and Development Program(2016YFC0500702)。

摘　　要：Terrestrial species are predicted to migrate northward under global warming conditions,yet little is known about the direction and magnitude of change in microbial distribution patterns.In this continental-scale study with more than 1600 forest soil samples,we verify the existence of core microbiota and lump them into a manageable number of eco-clusters based on microbial habitat preferences.By projecting the abundance differences of eco-clusters between future and current climatic conditions,we observed the potential warming-driven migration of the core microbiota under warming,partially verified by a field warming experiment at Southwest China.Specifically,the species that favor low p H are potentially expanding and moving northward to medium-latitudes(25°–45°N),potentially implying that warm temperate forest would be under threat of soil acidification with warming.The eco-cluster of high-p H with high-annual mean temperature(AMT)experienced significant abundance increases at middle-(35°–45°N)to high-latitudes(>45°N),especially under Representative Concentration Pathway(RCP)8.5,likely resulting in northward expansion.Furthermore,the eco-cluster that favors low-soil organic carbon(SOC)was projected to increase under warming scenarios at low-latitudes(<25°N),potentially an indicator of SOC storage accumulation in warmer areas.Meanwhile,at high-latitudes(>45°N)the changes in relative abundance of this eco-cluster is inversely related with the temperature variation trends,suggesting microbes-mediated soil organic carbon changes are more responsive to temperature variation in colder areas.These results have vital implications for the migration direction of microbial communities and its potential ecological consequences in future warming scenarios.尽管微生物-气候的相互作用已得到越来越多的研究者和决策者的认可,但微生物的高多样性和对气候环境变化多变量的响应导致预测微生物在未来气候背景下的分布格局非常困难.本研究依托于中国土壤微生物组计划,基于采集自中国东部森林的1600多个样品的16S r RNA基因测序数据,首先证实了微生物群落组成和多样性的纬度分布规律且温度对微生物群落组成有显著的直接作用.其次,利用核心微生物代替整体群落来进行多样性的缩减,并将这些核心微生物根据其对环境的偏好性划分为不同的生态集群,这些生态集群在空间上的热点区域,即高丰度区域相互不重叠.此外,通过Cubist模型预测未来不同气候变化情景下(RCP2.6和RCP8.5)各生态集群的丰度变化并将其投影到中国森林生态系统分布区域,通过与现在的分布格局做对比得到增温驱动的生态集群空间分布格局的变化.这些变化一方面可以指示集群内微生物对未来气候变化的适应性,另一方面考虑到每一类生态集群所代表的环境偏好性,这些变化也可进一步用来指示未来气候变化背景下土壤属性的变化.

关 键 词：Climate change Microbial biogeography Climate projection Latitudinal pattern 

分 类 号：G63[文化科学—教育学]