摘要
对温敏雄不育小麦Ｃ４９Ｓ小孢子败育的细胞学观察表明，花粉母细胞减数分裂有异常，小孢子发育的每个阶段均有一定的变异率，在单核早期大量细胞收缩变形，以后细胞发育停滞，细胞质和核物质逐渐解体，成为败育花粉和花药绒毡层细胞肥大，延迟解体等不正常现象，这可能与小孢子败育有关。
Cytological studies on microspore abortion in thermo sensitive male sterile wheat C 49S showed that the meiosis of the pollen mother cell was abnomal, and the variation of the micro spore appeared in every stage of its development. In the early uninuclear phase a large number of cells seemed contracted and deformed, but after that, those cells slopped topped growing and the cytoplasm and nucleus in them gradually disintegrated only to form abortive pollens. Meanwhile, the tapetum cells of the anther were inflated and their degradation delayed. All these facts may be relevant to the abortion of the pollen.
出处
《西南农业大学学报（自然科学版）》
CSCD
1998年第1期16-18,共3页
Journal of Southwest Agricultural University
基金
四川省科委应用基础研究课题
重庆市重点科技项目
关键词
小麦
小孢子
败育
三系配套
细胞学
male sterility
triticum aestivum
microspores
abortion(genetics)
