光敏核不育水稻农垦58S发育过程中药壁超微结构和Ca^(2+)分布的变化  

Ultrastructure and Ca^(2+) Distribution in Anther Wall during Development of Photosensitive Genic Male-sterile Line of Rice Nongken 58S

作　　者：夏快飞[1] 段中岗[2] 梁承邺[3] 叶秀粦[3] 

机构地区：[1]中山大学生物工程中心,广东广州510275 [2]惠州学院生命科学系,广东惠州516015 [3]中科院华南植物园,广东广州510650

出　　处：《亚热带植物科学》2005年第3期1-4,共4页Subtropical Plant Science

基　　金：国家自然科学基金(30170061);广东省十五重大专项(2003A2010401)资助

摘　　要：利用焦锑酸钾沉淀法分析光敏感核不育水稻农垦58S药壁超微结构和Ca2+分布的变化,发现在长日照条件下,药壁绒粘层细胞和药壁中Ca2+从花粉母细胞时期开始出现异常;随着花药的发育,药壁中Ca2+沉淀增加,主要分布在绒粘层细胞和乌氏体表面,长日照条件下不能很好地形成乌氏体,且乌氏体表面Ca2+沉淀要比短日照条件下少。Using potassium antimonate technique, the ultrastructure and Ca62＋ distribution in anther wall of photo-sensitive genic male-sterile line of Nongken 58S were studied. The results showed that under the long-day photoperiod, some vacuoles and Ca^2＋ precipitates were found in the tapetal cells in anther wall at pollen mother cell stage. With the growth of the plants, Ca^2＋ precipitates in the cells of anther wall increased, and it was mainly distributed in tapetal cells and on the surface of the Ubish bodies. Under the long-day photoperiod, the tapetal cells could not form intergraded Ubish bodies and the Ca^2＋ precipitates on Ubish bodies were much less than that under the short-day photoperiod.

关 键 词：水稻 光敏核不育 花药壁 超微结构 CA^2+ 

分 类 号：Q945.51[生物学—植物学]