Data/hora: 03/06/2024 10:52:27

Provedor de dados: 	58	
País: 	Brazil	
Título: 	Limited vegetative compatibility as a cause of somatic recombination in Trichoderma pseudokoningii	
Autores: 	Barcellos,Fernando Gomes; Hungria,Mariangela; Pizzirani-Kleiner,Aline Aparecida.	
Data: 	2011-12-01	
Ano: 	2011	
Palavras-chave: 	Somatic recombination; Limited vegetative compatibility; Trichoderma pseudokoningii; Parasexuality.	
Resumo: 	With the aim of a better characterization of the somatic recombination process in Trichoderma pseudokoningii, a progeny from crossings between T. pseudokoningii strains contrasting for auxotroph markers was characterized by RAPD markers and PFGE (electrophoretic karyotype). Cytological studies of the conidia, conidiogenesis and heterokaryotic colonies were also performed. The genotypes of the majority of the recombinant strains analyzed were similar to only one of the parental strains and the low frequency of polymorphic RAPD bands suggested that the nuclear fusions may not occur into the heterokaryon. In some heterokaryotic regions the existence of intensely staining hyphae might be related to cell death. We proposed that a mechanism of somatic recombination other than parasexuality might occur, being related to limited vegetative compatibility after postfusion events, as described for other Trichoderma species.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000400050	
Editor: 	Sociedade Brasileira de Microbiologia	
Relação: 	10.1590/S1517-83822011000400050	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Microbiology  v.42 n.4 2011	
Fonte: 	info:eu-repo/semantics/openAccess