Data/hora: 06/06/2024 15:19:29

Provedor de dados: | 63
País: | Brazil
Título: | Parasitism of Rhizoctonia solani by strains of Trichoderma spp.
Autores: | Melo,Itamar Soares de; Faull,Jane L.
Data: | 2000-03-01
Ano: | 2000
Palavras-chave: | Rhizoctonia; Trichoderma; Biological control.
Resumo: | Rhizoctonia solani causes serious diseases in a wide range of plant species. The fungus Trichoderma has been shown to be particularly effective in the control of the pathogen. Thus, this research was carried out to screen fourteen Trichoderma strains against R. solani in vitro. All strains tested inhibited the growth of R. solani. Three T. koningii strains produced toxic metabolites with strong activity against R. solani, inhibiting the mycelial growth by 79%. T. harzianum, Th-9 reduced the viability of sclerotia of R. solani by 81.8% and T. koningii, TK-5 reduced by 53%. Electron microscopic observations revealed that all T. harzianum strains interacted with R. solani. Th-9 grew toward and coiled around the host cells, penetrating and destroying the hyphae. Penetration of host cells was apparently accomplished by mechanical activity.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162000000100010
Editor: | São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
Relação: | 10.1590/S0103-90162000000100010
Formato: | text/html
Fonte: | Scientia Agricola  v.57 n.1 2000
Fonte: | info:eu-repo/semantics/openAccess