کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2181663 1095314 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The Aspergillus nidulans putative kinase, KfsA (kinase for septation), plays a role in septation and is required for efficient asexual spore formation
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیولوژی سلول
پیش نمایش صفحه اول مقاله
The Aspergillus nidulans putative kinase, KfsA (kinase for septation), plays a role in septation and is required for efficient asexual spore formation
چکیده انگلیسی

In Aspergillus nidulans nuclear division and cytokinesis are coupled processes during asexual sporulation. Metulae, phialides and conidia contain a single nucleus. Here we describe the role of a putative Saccharomyces cerevisiae Kin4-related kinase, KfsA (kinase for septation) in the control of septum formation in A. nidulans. The kfsA deletion caused an increase in the number of conidiophores with septa in their stalks from 20% in wild type to 60% in the mutant strain. Interestingly, 7% of metulae contained two nuclei and the corresponding phialides remained anucleate, suggesting septum formation before proper segregation of nuclei. This points to a checkpoint control of KfsA, which prevents septum formation before nuclear separation. KfsA localized to the cortex and septa in hyphae and in conidiophores but not to the spindle-pole bodies, as it was shown for Kin4 in yeast. KfsA appeared at septa after actin disappeared, suggesting an additional role of KfsA late during septum formation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fungal Genetics and Biology - Volume 44, Issue 11, November 2007, Pages 1205–1214
نویسندگان
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