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作 者 ：杨艳华;王才林*

期 刊 ：植物研究 2010年 30卷 2期 页码：152-156

关键词：水稻；维管束；气腔；叶绿体；基粒片层；

Keywords:rice, vascular bundle, air space, chloroplast, grana lamella,

摘 要 ：以江苏省常规粳稻品种武育粳3号、武运粳7号和日本优质粳稻品种关东194为材料，利用光学显微镜和透射电子显微镜，研究了抽穗期叶片主脉的显微结构和超微结构。结果表明武育粳3号和武运粳7号叶片主脉的维管束数目和气腔数目均较多，叶绿体基粒片层排列紧密，中间无空隙。而关东194叶片主脉的维管束数目和气腔数目较少，叶绿体基粒片层排列疏松，中间有空隙。武育粳3号和武运粳7号的这种结构特点可能与其高产特性有关。

Abstract:The microstructure and ultrastructure of three cultivated varieties of Oryza sativa ssp. japonica(Wuyujing 3, Wuyunjing 7, and Kanto 194) were investigated using light microscope and transmission electron microscope. The number of vascular bundles and air spaces in the main vein of the leaves in both Wuyujing 3 and Wuyunjing 7 was more than those of Kanto 194. Meanwhile, the grana lamellae of chloroplast were arranged closely and there was no gap in the middle of grana lamellae. The grana lamellae of chloroplast were arranged loosely and there were more gaps.These results showed that the microstructural and ultrastructural features of Wuyujing 3 and Wuyunjing 7 were correlated to their high yield characteristics, which lay a theoretical foundation for our future research.

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