Evaluating the Impact of Trichoderma brevicompactum 31636 on Root Rot of Atractylodes macrocephala and the Fungal Community in the Rhizosphere Soil

• DOI: 10.1016/j.ccmp.2022.100025
• Publication Date: 2022-03-18T02:03:07Z
• Authors: Xingge Huang; Xiaoning Yan; Yunjia Tang; Xiaofeng Yuan
• Keywords: Root rot; Trichoderma

Trichoderma brevicompactum can control of plant diseases, but there are few studies about the root rot by T. 31636 and its biocontrol mechanism. To explore impact on structure fungal communities rhizosphere soil. The effect controlling was assessed, growth plants observed pot experiments, detected high-throughput sequencing analysis. Compared with CK (healthy plants) group, height, fresh weight, dry weight increased 55.3%, 48.55% 57.8%, respectively. While concentration atractylenolide I, II, III, atractylone 19.35%, 16.96%, 89.42% 89.32%, results experiments indicated that could significantly improve survival rate Atractylodes macrocephala. principal coordinates analysis (PCoA) showed sample Fo+Th (adding Fusdrium oxysporum before 31636) group one side, samples Th Fo other. Furthermore, among top 20 dominant fungi detected, genus 1% increase relative abundance included (1%), Sordariomycetes (1.5%), Mortierella (1.3%), Penicillium meanwhile decrease Fusarium (30%) Pleosporales (1%). In summary, A. macrocephala regulating soil community inhibiting pathogen.