Soil fungal community is more sensitive than bacterial community to modified materials application in saline–alkali land of Hetao Plain

作者：Xiaolong Bai, En Zhang, Jinmin Wu, Donghai Ma, Chaohui Zhang, Bangyan Zhang, Yunpeng Liu, Zhang Zhi, Feng Tian, Hui Zhao, Bin Wang · 发表于：Frontiers in Microbiology · 年份：2024 · DOI：10.3389/fmicb.2024.1255536 · 被引用次数：41 · 研究领域：Mycorrhizal Fungi and Plant Interactions、Microbial Community Ecology and Physiology、Soil Carbon and Nitrogen Dynamics

Soil salinization has become a major challenge that severely threatens crop growth and influences the productivity of agriculture. It is urgent to develop effective management measures to improve saline-alkali soil. Thus, in this study, soil properties, microbial communities, and function under desulfurization gypsum (DE), soil amendment (SA), farm manure (FA), and co-application of desulfurization gypsum, soil amendment, and farm manure (TA) in a field experiment were examined by high-throughput sequencing. The results showed that the application of modified materials is an effective approach in improving saline-alkali soil, especially TA treatment significantly increased the content of available phosphorus (AP), available potassium (AK), soil organic matter (SOM), and alkaline hydrolysis nitrogen (AHN) and decreased pH, bulk density (BD), and electrical conductivity (EC). The application of modified materials resulted in notable enhancement in fungal diversity and altered the composition and structure of the fungal community. Conversely, the effect on the bacterial community was comparatively minor, with changes limited to the structure of the community. Regarding the fungal community composition, Ascomycota, Mortierellomycota, and Basidiomycota emerged as the dominant phyla across all treatments. At each taxonomic level, the community composition exhibited significant variations in response to different modified materials, resulting in divergent soil quality. The TA treatm...