کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10180040 1318714 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Defective callose walls and cell plates during abnormal meiosis cause male-sterility in the oat mutant zbs1
ترجمه فارسی عنوان
ضایعات دیواره آویشن و صفحات سلولی در طی مهبل غیرطبیعی سبب ایجاد ناپاکی در والدین می شود
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم کشاورزی و بیولوژیک (عمومی)
چکیده انگلیسی
During meiosis in flowering plants, degradation of the callose wall in tetrads releases newly produced microspores, which develop into mature pollen grains. In this study, we identified zbs1, a male-sterile mutant of naked oat (Avena nuda L.) that displayed complete spikelet sterility due to inviable mature pollen. The abnormal pollen grains originated from microspores with a defective callose wall and cell plate during meiosis. The defective callose wall and cell plate of the zbs1 mutant were detected by the labeling of cell wall epitopes (β-1,3-glucan) with immunogold during meiosis, and an abnormal chromosome configuration was observed by propidium iodide staining. The mature pollen grains of the zbs1 mutant were irregular in shape, and abnormal germination was observed by scanning electron microscopy. Together, our results indicate that the cause of male sterility in zbs1 is abnormal meiosis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Integrative Agriculture - Volume 15, Issue 2, February 2016, Pages 241-248
نویسندگان
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