Interações Clonostachys rosea Botrytis cinerea Solanum lycopersicum

• Ano de defesa: 2013
• Autor(a) principal: Saraiva, Rodrigo Moreira
• Orientador(a): Maffia, Luiz Antônio
• Banca de defesa: Souza, André Gomes Coelho de , Barreto, Robert Weingart , Costa, Maurício Dutra
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Doutorado em Fitopatologia
• Departamento: Etiologia; Epidemiologia; Controle
• País: BR
• Palavras-chave em Português: Mofo cinzento; Biocontrole; Manejo; Histologia
• Palavras-chave em Inglês: Grey mold; Biocontrol; Management; Histology
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOSSANIDADE::FITOPATOLOGIA
• Link de acesso: http://locus.ufv.br/handle/123456789/1050

Greenhouse tomato production is growing in Brazil. This production condition is favorable for grey mold, caused by Botrytis cinerea. Biocontrol by C. rosea is used for the disease management. In previous papers, four efficient in suppressing B. cinerea C. rosea strains were selected. It is unknow if these strains can control the disease in tomato. Therefore, this present paper aimed: i) to standardize a B. cinerea stem inoculation methodology for use in future biocontrol experiments; ii) to evaluate the efficiency of the four C. rosea strains to grey mold biocontrol; iii) to evaluate the compound production by C. rosea as an antagonic mechanism against B. cinerea; iv) to evaluate C. rosea application in the same place and far from B. cinerea inoculation and C. rosea use as a growth promoter; and v) to study C. rosea B. cienrea tomato interactions. It was observed that flowering tomatoes and young tomato sections are more susceptible to grey mold. Moreover, the disease severity was reduced when a humid chamber was used and it was not affected when gelatin was added to the inoculum suspension. The four C. rosea strains were efficient on the biocontrol of grey mold and they acted against B. cinerea by space and/or nutrient competion, hiperparasitism and deleterious compound(s) production. Clonostachys rosea also promoved tomato growth and was endofitic in the plant, living in the intercellular space. Thus, the antagonist has a potential to be used on greenhouse tomato production in Brazil, mainly in the integrated management context.