Title:	Development of mutants of Coniothyrium minitans with improved efficiency for control of Sclerotinia sclerotiorum.
Authors:	MELO, I. S. de MORETINI, A. CASSIOLATO, A. M. R. FAULL, J. L.
Affiliation:	ITAMAR SOARES DE MELO, CNPMA; ALEX MORETINI; ANA MARIA RODRIGUES CASSIOLATO, UNESP-Ilha Solteira; JANE L. FAULL, School of Biological Sciences.
Date Issued:	2011
Citation:	Journal of Plant Protection Research, Varsóvia, v. 51, n. 2, p. 5, 2011.
Description:	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.
Thesagro:	Sclerotinia sclerotiorum Doença fúngica Controle biológico Fungo para controle biológico
NAL Thesaurus:	Biological control Antifungal agents iprodione
Keywords:	Coniothvrium minitans Resistance Antibiotic production
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPMA)