Effects of plant functional groups removal on soil fungal community structure and diversity in an alpine meadow on the Qinghai-Tibet Plateau

Jiang Xue; Deng Chao-Chao; Wang Dang-Jun; Ye Lu-Ping; Zheng Yong; Wang Peng; Zuo Juan

doi:10.11913/PSJ.2095-0837.22246

Plant Science Journal > 2023 > 41(4): 425-436. > DOI: 10.11913/PSJ.2095-0837.22246 CSTR: 32231.14.PSJ.2095-0837.22246

Jiang X，Deng CC，Wang DJ，Ye LP，Zheng Y，Wang P，Zuo J. Effects of plant functional groups removal on soil fungal community structure and diversity in an alpine meadow on the Qinghai-Tibet Plateau[J]. Plant Science Journal，2023，41（4）：425−436. DOI: 10.11913/PSJ.2095-0837.22246

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Effects of plant functional groups removal on soil fungal community structure and diversity in an alpine meadow on the Qinghai-Tibet Plateau

Jiang Xue^{1, 2, 3,},
Deng Chao-Chao^{2, 3},
Wang Dang-Jun^{2, 3},
Ye Lu-Ping²,
Zheng Yong^2, ,,
Wang Peng^4, ,,
Zuo Juan²

1.
College of Science, Tibet University, Lhasa 850000, China
2.
Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
3.
University of Chinese Academy of Sciences, Beijing 100049, China
4.
College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China

Funds: This work was supported by grants from the National Natural Science Foundation of China (32171646) and Open Fund of CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences (E0520205).

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Received Date: November 20, 2022
Revised Date: December 15, 2022
Available Online: September 06, 2023

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Abstract

Abstract

To investigate the effect of plant diversity on soil fungal communities, we conducted a three-year experiment in an alpine meadows on the Qinghai-Tibet Plateau. The experiment included five treatments: no removal, legume and forb removal, graminoid and forb removal, graminoid and legume removal, and all removal. We analyzed soil fungal abundance and diversity using high-throughput sequencing, and measured root and soil properties. Results showed that Ascomycota, Mortierellomycota, and Basidiomycota were the dominant fungal phyla in the different treatments, accounting for more than 90%. There were no significant differences in composition and alpha diversity indices of the fungal communities under different treatments. The relative abundance of Glomeromycota was increased under graminoid and forb removal and graminoid and legume removal. Compared to the other treatments, the removal of graminoids and forbs increased the relative abundance of Zoopagomycota. The dominant fungal functional group was soil saprotroph fungi in all treatments. The relative abundance of arbuscular mycorrhizal fungi was increased under legume and forb removal and graminoid and forb removal. Compared with the removal of all, the removal of graminoids and legumes increased the relative abundance of lichen parasites/saprotroph fungi. The Mantel test showed no clear correlation between soil fungal community composition and function and environmental factors. Soil fungal richness indices were negatively affected by the increase in root biomass, root carbon:nitrogen (C:N), and dissolved organic carbon. Overall, our results indicate that the removal of plant functional groups in alpine meadows on the Qinghai-Tibet Plateau has a significant effect on soil fungal community structure but not on fungal community diversity.
- Alpine meadow,
- Plant functional group removal,
- Soil fungi,
- Plant-soil interaction

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Effects of plant functional groups removal on soil fungal community structure and diversity in an alpine meadow on the Qinghai-Tibet Plateau