The interaction of climate, plant, and soil factors drives putative soil fungal pathogen diversity and community structure in dry grasslands

文献类型： 外文期刊

第一作者： Zhang, Shaoyang

作者： Zhang, Shaoyang;Fan, Dandan;Zhuang, Xuliang;Kong, Weidong;Zhang, Shaoyang;Fan, Dandan;Zhuang, Xuliang;Kong, Weidong;Wu, Jianshuang;Zhang, Xianzhou;Kong, Weidong;Kong, Weidong

作者机构：

期刊名称：ENVIRONMENTAL MICROBIOLOGY REPORTS （ 影响因子：3.3； 五年影响因子：3.6 ）

ISSN： 1758-2229

年卷期： 2024 年 16 卷 1 期

页码：

收录情况： SCI

摘要： Soil pathogens play important roles in shaping soil microbial diversity and controlling ecosystem functions. Though climate and local environmental factors and their influences on fungal pathogen communities have been examined separately, few studies explore the relative contributions of these factors. This is particularly crucial in eco-fragile regions, which are more sensitive to environmental changes. Herein we investigated the diversity and community structure of putative soil fungal pathogens in cold and dry grasslands on the Tibetan Plateau, using high-throughput sequencing. The results showed that steppe soils had the highest diversity of all pathogens and plant pathogens; contrastingly, meadow soils had the highest animal pathogen diversity. Structural equation modelling revealed that climate, plant, and soil had similar levels of influence on putative soil fungal pathogen diversity, with total effects ranging from 52% to 59% (all p < 0.001), with precipitation exhibiting a stronger direct effect than plant and soil factors. Putative soil fungal pathogen community structure gradually changed with desert, steppe, and meadow, and was primarily controlled by the interactions of climate, plant, and soil factors rather than by distinct factors individually. This finding contrasts with most studies of soil bacterial and fungal community structure, which generally report dominant roles of individual environmental factors.

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