TITLE:
Rhizosphere Soil Fungal Diversity and Soil Physicochemical Properties of Different Vegetations in Tundra of Changbai Mountain
AUTHORS:
Ran Hao, Li Yang, Yihui Wang
KEYWORDS:
Changbai Mountain, Rhizosphere Soil, Fungal Diversity, Soil Environmental Factors
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.11 No.2,
February
23,
2023
ABSTRACT: By studying the diversity and community structure of rhizosphere soil
fungi of different plants in the tundra on the northern slope of Changbai
Mountain, it provides theoretical support for the restoration of environmental
degradation and in-depth study of fungal diversity in the tundra of Changbai
Mountain. High-throughput sequencing technology was used to determine the ITS1
region of fungal amplicons, so as to analyze the diversity of fungal
communities in the rhizosphere soil of six plants in the tundra of Changbai
Mountain, and to analyze the correlation between the environment and the
diversity and richness of fungal communities
in combination with relevant soil physical and chemical factors. The
diversity and richness of fungal community in the rhizosphere soil of six
plants in Changbai Mountain tundra were different. The Simpson and Shannon
indexes of Saxifraga stolonifera Curt
were the highest, and the richness of fungal community in Dryas octopetala was the highest. The analysis of fungal community
composition showed that the fungal colonies in plant rhizosphere soil samples
mainly belonged to Ascomycota and Basidiomycota, which were the main dominant
phyla. Mortierella, Fusarium and Sordariomycetes are common
fungal genera in the rhizosphere soil of six plants, but their abundances are
different among different plants. Water content was negatively correlated with
fungal diversity, and TP was positively correlated with fungal community
diversity. There were some differences in the composition and diversity of
rhizosphere soil fungal communities of six plants in Changbai Mountain tundra.
Ascomycota and Basidiomycota were the main
soil fungal phyla in the rhizosphere of six plants in Changbai Mountain tundra. The results could provide theoretical
guidance for ecological protection of Changbai Mountain tundra.