title: Cytological characterization of an Aspergillus Nidulans mutant from a strain with chromosomic duplication.
abstract: A development mutant, named V103, was obtained spontaneously from the A strain of A. nidulans. The A strain contains a duplicated segment of chromosome I that has undergone translocation to chromosome II (I II). It is mitotically unstable and generates phenotypically deteriorated types, some with enhanced stability. The deteriorated variants of A. nidulans show abnormal development, exhibiting slower colony growth, variations in colony pigmentation and changes in conidiophore structure. The alterations observed in the conidiophore include fewer metulae and phialides, further elongation and ramification of these structures, delayed nuclear migration and the presence of secondary conidiophores.
authors.affiliation: Laboratório de Produtos Bioativos de Origem Microbiana, Departamento de Ciências Fundamentais e Desenvolvimento Agrícola, Faculdade de Ciências Agrárias Universidade Federal do Amazonas, Manaus, AM , Brasil.
authors.forename: Agata Cristiane Huppert
authors.initials: AC
authors.lastname: Giancoli
authors.forename: João Lúcio
authors.initials: JL
authors.lastname: de Azevedo
authors.forename: Aline Aparecida
authors.initials: AA
authors.lastname: Pizzirani-Kleiner
keywords: Asexual Cycle; Aspergillus nidulans; Conidiogenesis; Mitotic Instability; Nuclear migration
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