Antagonistic Evaluation of sp. JH7 for Biological Control of Ginseng Root Rot Caused by .

Mycobiology

Division of Bioresource Sciences, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon 24341, Korea.

Published: December 2017

is an ascomycete soil-borne pathogen that causes ginseng root rot. To identify effective biocontrol agents, we isolated several bacteria from ginseng cultivation soil and evaluated their antifungal activity. Among the isolated bacteria, one isolate (named JH7) was selected for its high antibiotic activity and was further examined for antagonism against fungal pathogens. Strain JH7 was identified as a sp. using phylogenetic analysis based on 16S rRNA gene sequences. This strain was shown to produce antimicrobial molecules, including chitinases and proteases, but not cellulases. Additionally, the ability of JH7 to produce siderophore and solubilize insoluble phosphate supports its antagonistic and beneficial traits for plant growth. The JH7 strain suppressed the conidiation, conidial germination, and chlamydospore formation of . Furthermore, the JH7 strain inhibited other plant pathogenic fungi. Thus, it provides a basis for developing a biocontrol agent for ginseng cultivation.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5780369PMC
http://dx.doi.org/10.5941/MYCO.2017.45.4.370DOI Listing

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