文献类型：期刊文献

英文题名：Warm-Water Regimes Influence Microbial Diversity and Ecological Functions in Subtropical Gulf

作者：He, Qing[1];Huang, Laizhen[1];Huang, Chongqiu[1];Nethmini, Rajapakshalage Thashikala[1];Ferdoush, Jannatul[1];Zhou, Shengyao[2];Jiang, Gonglingxia[1];Hou, Qinghua[1];Li, Xiaolei[1];Chen, Qingxiang[1];Dong, Ke[3];Xie, Lingling[1];Li, Nan[1]

机构：[1]Guangdong Ocean Univ, Key Lab Climate Resources & Environm Continental S, Coll Ocean & Meteorol,Dept Educ Guangdong Prov, Dept Oceanog,Key Lab Coastal Ocean Variat & Disast, Zhanjiang, Peoples R China;[2]Guilin Univ Technol, Coll Environm Sci & Engn, Guilin, Peoples R China;[3]Kyonggi Univ, Dept Biol Sci, Suwon Si, Gyeonggi Do, South Korea

年份：2026

卷号：16

期号：4

外文期刊名：ECOLOGY AND EVOLUTION

收录：SCI-EXPANDED(收录号：WOS:001735655900001)、、WOS

基金：This study was jointly funded by the Guangdong Ocean University Innovative Team (Early-warning of marine disasters) (Grant number 2023KCXTD015); National Natural Science Foundation of China's 2023 Beibu Gulf Shared Voyage; the Scientific Research Start Funds of Guang dong Ocean University; the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (RS-2022-NR073058); Database of graphic and video images of planktonic animals in the western Guangdong waters (Grant number S202310566019); Innovation Team Project of Universities in Guangdong Province: 2025KCXTD020.

语种：英文

外文关键词：ecological function; indicator species; marine ecosystem; microbial diversity; warm-water dynamics

外文摘要：The marine ecosystem is a key biogeochemical engine driven by complex hydrodynamic processes and harbors significant microbial abundance and diversity. However, the influence of warm-water dynamics on marine microbial community composition and ecological function remains unclear. In this study, we used high-throughput sequencing to investigate the impact of water temperature on the composition and ecological processes of marine microbial communities in the Beibu Gulf. We found that temperature variation strongly influenced microbial community composition and ecological function in seawater. Proteobacteria were enriched in warm zones, whereas Cyanobacteria abundance decreased as the temperature increased. The transition zone exhibited the highest alpha diversity in summer and winter, suggesting favorable ecological niches under intermediate conditions. Functional analysis indicated that metabolic pathways dominated, particularly in the transition and warm zones in summer and winter. Random Forest analysis revealed Synechococcus sp. RCC307 had the highest relative abundance in the warm water zone in spring. Fulvimarina pelagi HTCC2506 was a summer warm-water specialist, and Acinetobacter sp. PmeaMuc16 and Agrobacterium radiobacter were warm-water indicator species in winter. Overall, these findings emphasize the critical role of thermal regimes in shaping bacterial communities in subtropical marine ecosystems and provide new insights into predicting microbial responses under ocean warming scenarios.