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Antifungal Activity of Beauveria bassiana Endophyte against Botrytis cinerea in Two Solanaceae Crops.

ABSTRACT: Botrytis cinerea causes substantial losses in tomato and chili pepper crops worldwide. Endophytes have shown the potential for the biological control of diseases. The colonization ability of native endophyte strains of Beauveria bassiana and their antifungal effect against B. cinerea were evaluated in Solanaceae crops. Root drenching with B. bassiana was applied, and endophytic colonization capacity in roots, stems, and leaves was determined. The antagonistic activity was evaluated using in vitro dual culture and also plants by drenching the endophyte on the root and by pathogen inoculation in the leaves. Ten native strains were endophytes of tomato, and eight were endophytes of chili pepper. All strains showed significant in vitro antagonism against B. cinerea (30-36%). A high antifungal effect was observed, and strains RGM547 and RGM644 showed the lowest percentage of the surface affected by the pathogen. Native strains of B. bassiana colonized tomato and chili pepper tissues and provided important levels of antagonism against B. cinerea.

SUBMITTER: Barra-Bucarei L 

PROVIDER: S-EPMC7022534 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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Antifungal Activity of <i>Beauveria bassiana</i> Endophyte against <i>Botrytis cinerea</i> in Two <i>Solanaceae</i> Crops.

Barra-Bucarei Lorena L   France Iglesias Andrés A   Gerding González Macarena M   Silva Aguayo Gonzalo G   Carrasco-Fernández Jorge J   Castro Jean Franco JF   Ortiz Campos Javiera J  

Microorganisms 20191231 1

<i>Botrytis cinerea</i> causes substantial losses in tomato and chili pepper crops worldwide. Endophytes have shown the potential for the biological control of diseases. The colonization ability of native endophyte strains of <i>Beauveria bassiana</i> and their antifungal effect against <i>B. cinerea</i> were evaluated in <i>Solanaceae</i> crops. Root drenching with <i>B. bassiana</i> was applied, and endophytic colonization capacity in roots, stems, and leaves was determined. The antagonistic a  ...[more]

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