Data/hora: 24/06/2024 19:57:39

Biblioteca(s): | Embrapa Meio Ambiente.
Data corrente: | 18/08/2011
Data da última atualização: | 18/08/2011
Autoria: | MELO, I. S. de; MORETINI, A.; CASSIOLATO, A. M. R.; FAULL, J. L.
Afiliação: | ITAMAR SOARES DE MELO, CNPMA; ALEX MORETINI; ANA MARIA RODRIGUES CASSIOLATO, UNESP-Ilha Solteira; JANE L. FAULL, School of Biological Sciences.
Título: | Development of mutants of Coniothyrium minitans with improved efficiency for control of Sclerotinia sclerotiorum.
Ano de publicação: | 2011
Fonte/Imprenta: | Journal of Plant Protection Research, Varsóvia, v. 51, n. 2, p. 5, 2011.
Idioma: | Inglês
Conteúdo: | Coniothurium minitans (CM) is hyperparasitic to Sclerotinia sderotiorum (55), a palhogen of many economically important crops. In this paper, we describe lhe isolation of improved mutants of CM, using a UV - irradiation regime, with altered chitinase production and tolerance to high concentration of iprodione, which are effect:iveagainst Ss. Three out of the 59 mutants obtained inhibited the mycelial growth of CM. Infectivity of sclerotia by the new mutants was assayed by the plant-tissue-based system using carrot segments. More than 80%of sclerotia were colonized by lhe mutants and the wild-type CM. The mutant strains retained ability to produce significant amounts of chitinase. The mutants differed frorn their wild-type strain in appearance, morphology and sporulation. In conclusion, the results presented here provide evidence that lhe new biotypes of C. minitans are effective in controlling S.sclemtiarum.
Palavras-Chave: | Antibiotic production; Coniothvrium minitans; Resistance.
Thesagro: | Controle biológico; Doença fúngica; Fungo para controle biológico; Sclerotinia sclerotiorum.
Thesaurus Nal: | Antifungal agents; Biological control; iprodione.
Categoria do assunto: | H Saúde e Patologia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/40043/1/2011AP17.pdf
Registro original: | Embrapa Meio Ambiente (CNPMA)
Exemplares: | CNPMA - (10427-1) - UPC - AP - DD -  -  -  - DIS