Herbivore camping reshapes the taxonomy, function and network of pasture soil microbial communities
文献类型： 外文期刊
作者： Wang, Puchang 1 ; Ding, Leilei 2 ; Li, Fuxiang 3 ; Liao, Jiafa 3 ; Wang, Mengya 4 ;
作者机构： 1.Guizhou Normal Univ, Sch Life Sci, Guiyang, Guizhou, Peoples R China
2.Guizhou Acad Agr Sci, Guizhou Inst Prataculture, Guiyang, Guizhou, Peoples R China
3.Guizhou Weining Plateau Grassland Expt Stn, Weining, Guizhou, Peoples R China
4.Guizhou Univ, Coll Anim Sci, Guiyang, Guizhou, Peoples R China
关键词： Fungi; Bacteria; Grassland; Network robustness; Niche breadth; Niche overlap; Camping; Soil; Community structure
期刊名称：PEERJ （ 影响因子：2.7； 五年影响因子：3.1 ）
ISSN： 2167-8359
年卷期： 2022 年 10 卷
页码：
收录情况： SCI
摘要： Although the effects of herbivore camping on soil physicochemical properties have been studied, whether the effects alter the soil microbial communities (e.g., composition, functions, taxonomic and functional diversities, network) remain unknown, especially below the surface. Here, using paired subsoil samples from half month-camping and non-camping, we showed for the first time that camping significantly changed the relative abundance of 21 bacterial phylotypes and five fungal phylotypes. Specifically, we observed significant increases in the relative abundance of putative chitinase and terpenes vanillin-decomposition genes, nitrite reduction function (nirB, nasA), decreases in the relative abundance of putative carbon fixation genes (ackA, PGK, and Pak), starch-decomposition gene (dexB), gene coding nitrogenase (anfG), and tetracycline resistance gene (tetB) for bacterial communities, and significant decreases in the relative abundance of animal endosymbiont and increases in the relative abundance of litter saprotroph and endophyte for fungal communities. However, camping did not significantly impact the taxonomic and functional diversity. The niche restriction was the main driving force of bacterial and fungal community assembly. Compared to no camping, camping increased the stability of bacterial networks but decreased the stability of fungal networks. Camping exerted a positive effect on the network by compressing the niche width and reduced the change in the network by reducing the niche overlap. Our results suggest that camping restructures the soil microbial composition, function, and network, and provides a novel insight into the effect of animal camping on soil microbial communities in grassland.
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