文献类型：期刊文献

英文题名：Biogeography and community stability of leaf endophytic diazotrophs in mangrove Kandelia obovata

作者：Hou, Qinghua[1];Nethmini, Rajapakshalage Thashikala[1];Qi, Feng[2];Pan, Lianghao[3];Shi, Xiaofang[3];Huang, Laizhen[1];He, Qing[1];Chen, Qingxiang[1];Li, Xiaolei[1];Jiang, Gonglingxia[1];Ke, Dong[4];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,Lab Coastal, Zhanjiang, Guangdong, Peoples R China;[2]Guilin Univ Elect Technol, Sch Life & Environm Sci, Guilin, 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]Kyonggi Univ, Dept Biol Sci, 154-42 Gwanggyosan Ro, Suwon 16227, Gyeonggi Do, South Korea

年份：2026

卷号：9

期号：1

外文期刊名：COMMUNICATIONS BIOLOGY

收录：SCI-EXPANDED(收录号：WOS:001823913300006)、、Scopus(收录号：2-s2.0-105044887744)、WOS

基金：We would like to thank the Analytical and Testing Center of Guangdong Ocean University for environmental parameter analysis. This work was funded by Guangdong Ocean University Innovation Team (Early-warning of marine disasters) (No. 2023KCXTD015), Innovation Team Project of Universities in Guangdong Province (2025KCXTD020) and Program for Scientific Research Start-up Funds of Guangdong Ocean University.

语种：英文

外文摘要：The leaf endosphere hosts diazotrophs vital for plant health and ecosystem resilience in saline environments. However, the geographic pattern and stability of the diazotrophic community in coastal salt marshes ecosystems are poorly understood. In this study, we examine the biogeographic distribution, assembly processes and community stability of leaf endophytic diazotrophs in the mangrove species Kandelia obovata across multiple regions in China. Our findings reveal that Rhizobiales are the most abundant in the diazotrophic communities. Community assembly is largely governed by stochastic processes, with dispersal limitations playing a dominant role. Soil nutrients emerge as the dominant factor influencing diazotroph composition, surpassing climatic variables and host traits. Notably, soil total sulfur (TS) serves as a key environmental factor shaping the diazotrophic community structure, with low TS environments supporting more stable microbial networks. These findings reveal ecological drivers and adaption strategies of endophytic diazotrophic communities in mangrove ecosystems, emphasizing the influence of nutrients dynamics in leaf endophytic microbial assembly under environmental changes.