Antagonist activity of Trichoderma harzianum against Sclerotinia sclerotiorum from common bean

Autores

DOI:

https://doi.org/10.48075/actaiguaz.v8i1.19067

Palavras-chave:

controle biológico, antibiose, mofo branco, Phaseolus vulgaris

Resumo


A key point in the development of new biopesticides is the discovery of strains with greater activity or more adapted to the environmental conditions under which such products are used. Thus, there is need to maintain a continuous flow of characterization and assessment of biocontrol agents. Therefore, five Brazilian Trichoderma harzianum isolates were evaluated in vitro against Sclerotinia sclerotiorum, the causal agent of the white mold of common bean. Initially, the isolates grown with the pathogen by paired culture and antibiosis assays. Light microscopy studies showed mycoparasitism by isolate CEN316 on S. sclerotiorum hyphae. Besides, reductions in the mycelial growth of S. sclerotiorum were verified with non-volatile metabolites of T. harzianum, wherein CEN287 and CEN316 inhibited the pathogen growth in 95% and 90% respectively. In vitro results, credit such isolates as potential holders in the development of soil inhabitant pathogens biological control program.

Biografia do Autor

Daniel Diego Costa Carvalho, Universidade Estadual de Goiás

Universidade Estadual de Goiás

Paulo Henrique Pereira Costa Muniz, Universidade Estadual de Goiás

Universidade Estadual de Goiás

Irene Martins, Embrapa Recursos Genéticos e Biotecnologia

Embrapa Recursos Genéticos e Biotecnologia

Thiago Alves Santos de Oliveira, Faculdade Maria Milza

Faculdade Maria Milza

Sueli Corrêa Marques Mello, Embrapa Recursos Genéticos e Biotecnologia

Embrapa Recursos Genéticos e Biotecnologia

Downloads

Publicado

04-03-2019

Como Citar

COSTA CARVALHO, D. D.; PEREIRA COSTA MUNIZ, P. H.; MARTINS, I.; ALVES SANTOS DE OLIVEIRA, T.; CORRÊA MARQUES MELLO, S. Antagonist activity of Trichoderma harzianum against Sclerotinia sclerotiorum from common bean. Acta Iguazu, [S. l.], v. 8, n. 1, p. 60–67, 2019. DOI: 10.48075/actaiguaz.v8i1.19067. Disponível em: https://e-revista.unioeste.br/index.php/actaiguazu/article/view/19067. Acesso em: 10 ago. 2022.

Edição

Seção

ARTIGOS CIENTÍFICOS