Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Antagonism of saprobe fungi from semiarid areas of the Northeast of Brazil against Sclerotinia sclerotiorum and biocontrol of soybean white mold

Full text
Author(s):
Peitl, Douglas Casaroto [1] ; Sumida, Ciro Hideki [2] ; Goncalves, Ricardo Marcelo [3] ; Pascholati, Sergio Florentino [4] ; Balbi-Pena, Maria Isabel [3]
Total Authors: 5
Affiliation:
[1] Univ Estadual Londrina, Curso Mestrado, Programa Posgrad Agron, Londrina, Parana - Brazil
[2] Univ Estadual Londrina, Dept Agron, Londrina, Parana - Brazil
[3] Univ Estadual Londrina, Programa Posgrad Agron, Londrina, Parana - Brazil
[4] Univ Sao Paulo, Escola Super Agr Luiz de Queiroz, Dept Fitopatol & Nematol, Piracicaba, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: SEMINA-CIENCIAS AGRARIAS; v. 41, n. 6, p. 2597-2611, NOV-DEC 2020.
Web of Science Citations: 0
Abstract

The antagonistic activity of 25 saprobe fungi from semiarid areas of the Northeast of Brazil was evaluated against Sclerotinia sclerotiorum (Lib.) de Bary (Helotiales: Sclerotiniaceae). Four fungi {[}Myrothecium sp. Tode (Hypocreales: Stachybotryaceae) isolate 2, Volutella minima Hohn. (Hypocreales: Nectriaceae), Phialomyces macrosporus P.C. Misra \& P.H.B. Talbot (Pezizomycotina) and Dictyosporium tetraseriale Goh, Yanna \& K.D. Hyde (Pleosporales: Dictyosporiaceae)] were selected and further tested their ability to inhibit mycelial growth, sclerotia formation and ascospore germination of S. sclerotiorum and to control white mold on soybean plants. V. minima and P. macrosporus filtrates at 50% effectively suppressed mycelial growth and Myrothecium sp. isolate 2 completely suppressed sclerotia formation and inhibited ascospore germination by over 95%, the same result as commercial fungicide fluazinam. Soybean plants pre-treated with Myrothecium sp. isolate 2, P. macrosporus, and V. minima and inoculated with S. sclerotiorum showed a reduction of 55.8%, 79.7%, and 83.2% of area under disease progress curve (AUDPC) of white mold, respectively, in relation to water. Collectively, these results underline the antagonistic activity of V. minima, P. macrosporus, and Myrothecium sp. isolate 2 against S. sclerotiorum and their potential as biocontrol agents of soybean white mold. (AU)