Arid Zone Research ›› 2025, Vol. 42 ›› Issue (5): 875-884.doi: 10.13866/j.azr.2025.05.10

• Plant Ecology • Previous Articles     Next Articles

Characterization of environmental factors and bacterial community composition in rhizosphere soil of wild Pleurotus ferulae in Xinjiang Ili

WANG Guangquan1(), Muguli MUHAXI1,2(), Oren AKHBERDI1,2, Mayira TURDIBEK1,2, ZHANG Xuemei1,2, PANG Kejian1,3   

  1. 1. College of Biological Sciences and Technology, Yili Normal University, Yining 835000, Xinjiang, China
    2. Institute of Resources and Ecology, Yili Normal University, Yining 835000, Xinjiang, China
    3. Shihezi University, Shihezi 832061, Xinjiang, China
  • Received:2025-02-26 Revised:2025-03-30 Online:2025-05-15 Published:2025-10-22
  • Contact: Muguli MUHAXI E-mail:18139353160@163.com;muguli@163.com

Abstract:

In order to reveal the characteristics of rhizosphere soil bacterial communities of wild, Pleurotus ferulae in Ili region, Xinjiang, China and their interaction mechanisms with soil environmental factors, and to break through the bottlenecks of artificial domestication, this study integrated soil physicochemical analysis, soil enzyme activity assays, and Illumina high-throughput sequencing to compare the microecological differences between rhizosphere and non-rhizosphere soils. The results revealed that the pH of rhizosphere soil of P. ferulae was significantly lower than that of non-rhizosphere soil, and organic matter, available nitrogen/phosphorus, and enzyme activities were markedly higher than those of non-rhizosphere soil, indicating a synergistic regulation of nutrient cycling by the host and associated microorganisms. Sequencing identified 1895 bacterial Operational Taxonomic Units (OTUs), with 156 unique to the rhizosphere and 102 unique to non-rhizosphere soils. Bacteroidetes (14.26%), Gemmatimonadetes (4.87%), and Verrucomicrobia (1.24%) were significantly enriched in the rhizosphere soil. Specific genera such as Pseudomonas and Flavobacterium may support the growth of P. ferulae through organic matter degradation and plant growth-promoting functions. Redundancy Analysis (RDA) revealed that organic matter, available nitrogen and phosphorus, and β-Glucosidase were key factors driving community structure (cumulative explanation >70%). Bacteroidetes and Acidobacteria were linked to carbon and nitrogen cycling, whereas Proteobacteria and Chloroflexi were associated with pH adaptability. In artificial cultivation, it is recommended to simulate a near-neutral pH environment in rhizosphere soil, enhance organic matter supplementation, and inoculate functional microbiota to optimize mycelial colonization efficiency. These results provide a theoretical basis for the conservation and sustainable utilization of P. ferulae.

Key words: wild Pleurotus ferulae, high-throughput sequencing, rhizosphere soil, environmental factor, bacterial community