|Table of Contents|

Effects of Fusarium Wilt on Soil Microbial Structure and Function of Pseudostellaria heterophylla

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2024年23
Page:
73-82
Research Field:
Publishing date:

Info

Title:
Effects of Fusarium Wilt on Soil Microbial Structure and Function of Pseudostellaria heterophylla
Author(s):
YUAN Qingsong12GAO Yanping2GUO Lanping1OU Xiaohong2WANG Yanhong2ZHOU Tao2
(1.National Resource Center for Chinese Materia Medica,Chinese Academy of Chinese Medical Sciences/State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs,Beijing 100700;2.Resource Institute for Chinese & Ethnic Materia Medica,Guizhou University of Traditional Chinese Medicine,Guiyang,Guizhou 550025)
Keywords:
Pseudostellaria heterophyllafusarium wiltcommunity of microbiomefunction of microbiomecontinuous cropping obstacle
PACS:
R 282.2
DOI:
10.11937/bfyy.20241569
Abstract:
Taking Pseudostellaria heterophylla as the test material,the effects of fusarium wilt on the microbial composition and function of P.heterophylla microbiome in the rhizosphere and root zone soil was studied using microbial sequencing,in order to clarify its microecological mechanism that fusarium wilt disease mediated the P.heterophylla microbiome alteration.The results showed that fusarium wilt significantly changed the bacterial community structure in the rhizosphere and root zone soil of P.heterophylla,which had a strong attraction to Bacteroides and Patescibacteria in the soil,while it had a strong elimination effect on Chloroflexi.In addition,Fusarium spp.and Llyonectria spp. were enriched,while beneficial fungus such as Trichoderma sppwere excluded.The cooccurrence network analysis found that fusarium wilt reduced the diversity and stability of soil microbial communities,and soil microorganisms evolved towards simplification,which was manifested by a decrease in the buffering capacity of soil to resist adverse conditions.The analysis of function of microbiome indicate that fusarium wilt may enhance the pathogenicity and transmissibility of pathogen through the enrichment of amino acid metabolic pathways,and mediates the accumulation of terpene,polyketone,and antibiotic secondary metabolites,promoting the elimination of specific beneficial microorganisms.This study preliminarily revealed that the fusarium wilt of P.heterophylla mediated the aggravation of continuous cropping obstacle and its causes,laying a foundation for explaining the microecological mechanism of continuous cropping obstacle of P.heterophylla.

References:

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Last Update: 2024-12-16