Format: ORAL

Peng-xi CAO1, 2, Yi-xuan LIU1, 2, Xing Liu1, 2, 3, Qiong LA1, 2*

1 Key Laboratory of Biodiversity and Environment on the Qinghai-Tibetan Plateau, Ministry of Education, School of Ecology and Environment, Tibet University, Lhasa, China 2 Yani Wetland and Maidika Wetland Ecosystem Positioning Observation and Research Station, Tibet University, Lhasa, China 3 College of Life Science, Wuhan University, Wuhan, China

Oxytropis glacialisis an endemic species of alpine grasslands on the Qinghai-Tibet Plateau, and has a strong invasive capacity in degraded grasslands.In this study, a model for the ecological evolution of rhizosphere soil microorganism of O. glacialiswas constructed using high-throughput sequencing combined with climatic and environmental factor analysis.The results show that the ecological evolution of bacteria is a deterministic process and that of fungi is a stochastic process. The synergy between the fungal and bacterial communities was dominant, and the bacterial communities were more closely interconnected than the fungal communities.The core bacterial groups are: Pseudomonas, Gaiellales, Gemmatimonadaceae, etc. and the core fungal groups are Mortierella, Gibberella, Didymella, etc.This study provides data to reveal the role of O. glacialisin alpine degraded grasslands.