文献类型：期刊文献

英文题名：Thermal sensitivity and niche plasticity of generalist and specialist leaf-endophytic bacteria in Mangrove Kandelia obovata

作者：Nethmini, Rajapakshalage Thashikala[1];Zhao, Huaxian[2];Pan, Lianghao[3];Qin, Xinyi[2];Huang, Jiongqing[4];He, Qing[1];Shi, Xiaofang[3];Jiang, Gonglingxia[1];Hou, Qinghua[1];Chen, Qingxiang[1];Li, Xiaolei[1];Dong, Ke[5];Xie, Lingling[1];Li, Nan[1]

机构：[1]Guangdong Ocean Univ, Coll Ocean & meteorol, Key Lab Climate Resources & Environm Continental S, Dept Oceanog,Dept Educ Guangdong Prov,Key Lab Coas, Zhanjiang, Peoples R China;[2]Nanning Normal Univ, Key Lab Environm Change & Resources Use Beibu Gulf, Minist Educ, Nanning, Guangxi, Peoples R China;[3]Guangxi Acad Sci, Guangxi Acad Marine Sci, Guangxi Mangrove Res Ctr, Guangxi Key Lab Mangrove Conservat & Utilizat, Beihai, Guangxi, Peoples R China;[4]Ludong Univ, Sch Agr, Yantai, Peoples R China;[5]Kyonggi Univ, Dept Biol Sci, 154-42 Gwanggyosan Ro, Suwon 16227, Gyeonggi Do, South Korea

年份：2025

卷号：8

期号：1

外文期刊名：COMMUNICATIONS BIOLOGY

收录：SCI-EXPANDED(收录号：WOS:001389232400001)、、Scopus(收录号：2-s2.0-85214136857)、WOS

基金：This research was jointly funded by the Guangdong Ocean University Innovative Team (Early-warning of marine disasters) (Grant number 2023KCXTD015), Guangxi Key Research and Development Program (Grant number AB24010109), the Scientific Research Start Funds of Guangdong Ocean University. The Natural Science Foundation of Guangxi Province (Grant number 2022GXNSFBA035591) and the National Research Foundation of Korea under project number NRF-2022R1F1A1066643. China-Sri Lanka Joint Center for Education & Research, Chinese Academy of Sciences.

语种：英文

外文摘要：Leaf endospheres harbor diverse bacterial communities, comprising generalists and specialists, that profoundly affect ecosystem functions. However, the ecological dynamics of generalist and specialist leaf-endophytic bacteria and their responses to climate change remain poorly understood. We investigated the diversity and environmental responses of generalist and specialist bacteria within the leaf endosphere of mangroves across China. Our findings show a predominance of specialists in the mangrove leaf endosphere. Temperature is the key factor driving community dissimilarity in both groups, yet it negatively influences the alpha diversity. Soil nutritional factors, particularly phosphate for generalists and total organic carbon for specialists are critical in shaping the functional profiles. Interestingly, temperature has a limited impact on functional profiles. Stochastic processes govern community assembly in both bacterial groups, altering the beta-nearest taxon indices as temperatures increase. Our findings indicate that the halophytic leaf endosphere favors microbial niche specialization, due to its unique microenvironment and discrete niches, showing thermal sensitivity in terms of the microbial community profile. This study provides insights into niche differentiation and environmental adaptation mechanisms of leaf endophytic microbes in woody halophytes in response to environmental perturbations.