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| Giancoli,Ágata Cristiane Huppert; Pizzirani-Kleiner,Aline Aparecida. |
| The Abnc strain of A. nidulans carries the bncA1 gene (binucleated conidia), which induces the formation of binucleate and trinucleate conidia, displaying a chromosome I duplicated area and shifted to the chromosome II (I->II), and bringing forth genetic instability with degenerated sectors. This work has considered in a cytological level the conidiogenesis of the deteriorated variants isolated from the Abnc strain of A. nidulans, observing the event at the level of structural alterations, which composes the conidiophore, and the variations in the number of sterigmata and conidia nuclei. Cytogenetic analyses of conidiogenesis were accomplished in predetermined periods, under Giemsa stain, to observe the nuclei and analysis through the Scanning... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bristle; Conidiophore; Developmental mutants. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000400008 |
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| Giancoli,Ágata Cristiane Huppert; Azevedo,João Lúcio de; Kleiner,Aline Aparecida. |
| 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. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aspergillus nidulans; Conidiogenesis; Nuclear migration; Asexual Cycle; Mitotic Instability. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000100036 |
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