多胞质玉米胚乳淀粉粒性状的扫描电镜观察  

Scanning Electron Microscope Observation on Endosperm Starch Grain Characters in Multiplasmic Maize

作　　者：李敬玲[1] 贾敬鸾[1] 刘敏[1] 赵世民[1] 刘雅楠[1] 曾孟潜[1] 李社荣[1] 

机构地区：[1]中国科学院遗传研究所,北京100101

出　　处：《Acta Genetica Sinica》1999年第3期249-253,共5页

摘　　要：11种多胞质系玉米胚乳淀粉粒的扫描电镜观察表明：不同的细胞质对细胞核有不同程度的互作，3种甜质胞质玉米的胚乳淀粉粒多呈球形，排列紧密，存在一定的共性；4种雄性不育胞质玉米的胚乳淀粉粒多呈不规则形，除（T）Mo17外，排列疏松。这11种玉米胚乳淀粉粒的平均直径为9.78μm—14．69μm，通过玉米胚乳淀粉粒形态特征的观察，在玉米淀粉性状和玉米籽粒的商品价值关系上进行一定程度探索，为玉米的进一步发展和研究提供了科学依据。In this article, endosperm shush grains of eleven lines in multiplasmic maize were studied by scanning electron microscope. The results show that different cytoplasm has different effects on the characters of starch grain. The starch grains of three sweet corn cytoplasmic lines (sh1, sh2, bt1) are mainly spherical and packed tightly, which means they have some degree of similarity. While the grains of four cytolasmic male sterility lines (T, S, C, 21A) are mostly irregular and packed loosely except (T) Mo17, in which grains are tightly packed. The average diameter of these eleven varieties is ranged from 9.78μm to 14.69μm. Through the study of endosperm starch grain shape and size, we tried to explore the relationship between the property of starches and the quality of seeds. And this will significantly prompt the development of maize genetics and breeding.

关 键 词：多胞质玉米 细胞质雄性不育性 胚乳淀粉粒 扫描电镜观察 

分 类 号：S513.01[农业科学—作物学]