Evaluation of the fungitoxic activity of vegetal extracts on the mycelial growth of phytopathogens

Authors

  • Talita Pereira de Souza Ferreira Universidade Federal do Tocantins
  • Luiz Gustavo de Lima Guimarães Universidade Federal São João Del Rei
  • Gil Rodrigues dos Santos Universidade Federal do Tocantins
  • Tatiani Pereira de Souza Ferreira Coopter - Cooperativa de Trabalho Prestação de Serviços Assistência Técnica e Extensão Rural.
  • Tallyta Santos Teixeira Universidade Federal do Tocantins
  • Ryhára Dias Batista Universidade Federal do Tocantins.
  • Raiana Batista da Luz Universidade Federal do Tocantins

DOI:

https://doi.org/10.14393/BJ-v33n3-33958

Keywords:

Methanolic extract, Sclerotium rolfsii, Rhizoctonia solani, Fungitoxic activity.

Abstract

Although the productivity of common bean in Tocantins is economically favorable, it has been infected by various pathogens found in soil. Among the major diseases is the web blight and root rot caused by Rhizoctonia solani and collar rot caused by the fungus Sclerotium rolfsii. This study aimed to evaluate the fungitoxic activity of methanol extracts of eight plant species on the inhibition of mycelial growth of S. rolfsii and R. solani. The fungitoxic activities were carried out over the inhibition of mycelial growth by means in vitro assays. The extracts were applied in concentrations of 250, 500, 1000, 2500 e 5000 µg ml-1 in PDA culture medium. In bioassays, it was found the significant effect of plant, concentration and also their interaction on the antifungal activity of the extracts. However, some extracts showed no inhibition of mycelial growth of the pathogens studied. Among those who had higher inhibitions is the extract of Lantana trifolia, which inhibited the mycelial growth of S. rolfsii in all concentrations, being the same as 97% for the highest concentration. When the methanol extract of Piper amplum Kunth, inhibition of the highest concentration was 83% for S. rolfsii and 74% for R. solani. These results show the potential of methanolic extract of Lantana trifolia and Piper amplum Kunth in the control set of plant pathogens studied. 

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Author Biographies

Luiz Gustavo de Lima Guimarães, Universidade Federal São João Del Rei

Professor Doutor permanente do Departamento de Química

Gil Rodrigues dos Santos, Universidade Federal do Tocantins

Diretor do Campus da UFT-Gurupi e Professor doutor do curso de Agronomia

Tatiani Pereira de Souza Ferreira, Coopter - Cooperativa de Trabalho Prestação de Serviços Assistência Técnica e Extensão Rural.

Mestre em Produção Vegetal pela UFT.

Tallyta Santos Teixeira, Universidade Federal do Tocantins

Graduada em Engenharia de Bioprocessos e Biotecnologia - UFT

Ryhára Dias Batista, Universidade Federal do Tocantins.

Graduada em Engenharia de Bioprocessos e Biotecnologia - UFT.

Raiana Batista da Luz, Universidade Federal do Tocantins

Graduada em Engenharia de Bioprocessos e Biotecnologia - UFT

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Published

2017-05-24

How to Cite

FERREIRA, T.P. de S., GUIMARÃES, L.G. de L., DOS SANTOS, G.R., FERREIRA, T.P. de S., TEIXEIRA, T.S., BATISTA, R.D. and DA LUZ, R.B., 2017. Evaluation of the fungitoxic activity of vegetal extracts on the mycelial growth of phytopathogens . Bioscience Journal [online], vol. 33, no. 3, pp. 566–571. [Accessed6 December 2022]. DOI 10.14393/BJ-v33n3-33958. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/33958.

Issue

Section

Agricultural Sciences