中国水稻科学

中国水稻科学

• 研究简报 • 上一篇    

水稻烯效唑浸种对秧苗影响的解剖学观察

李莹1; 陈凤玉2   

  1. 1沈阳师范学院 生物系， 辽宁 沈阳 110034； 2沈阳农业大学 基础部，辽宁 沈阳 110161
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2001-10-10 发布日期:2001-10-10

Effect of Uniconzole on Histological Structures of Rice Seedling

LI Yue-ying 1; CHEN Feng-yu 2   

  1. (1Department of Biology; Shenyang Normal University; Shenyang 110034; China; 2Department of Basic Sciences; Shenyang Agricultural University; Shenyang 110161; China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2001-10-10 Published:2001-10-10

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被引次数

111

摘要： 以30 mg/L的烯效唑(S-07)乳剂浸种24 h, 于3叶1心期取样,在扫描电镜下观察叶表皮细胞和茎横切面,在透射电镜下观察叶绿体结构。经烯效唑处理的叶表皮细胞变短,叶表皮细胞的形状由锥体变为长方体,细胞之间的间隙变得紧密。茎横切面厚度增加,薄壁细胞增大，厚度比对照增厚44.4%左右，表明S07延缓水稻秧苗生长主要是使细胞缩短,间隙变小,而不是减少细胞数量。而抗倒性的增强,主要是由于增加茎秆壁的厚度。透射电镜观察结果表明S-07可改变叶绿体的结构,使得类囊体增多,排列致密。

关键词: 水稻, 秧苗, 烯效唑, 植物生长调节物质, 组织结构

Abstract: Epidermal cells of leaf, transverse sections of stem, and chloroplast structure of leaf were observed at 3 leaf age rice seedling with rice seeds soaked in 30 mg/L uniconzole (S-07) emulsion for 24 hours. The results showed that the epidermal cells of S-07 treatment became shorter. The shape of epidermal cells of rice seedling was changed from the conical in the control to rectangle in those after treatments. The intercellular space were closer, and the stem wall of treatment were thicker about 44.4 percent than control. These results showed that shoots of rice seedling of S-07 treatment were shorten mainly by shortening cell and not reducing the cell number. The lodging resistance of rice seedling was increased mainly by the thickness of stem increasing. The number and density of chloroplast grana increased by S-07 treatment, which indicates that S-07 can transform chloroplast grana.

Key words: rice, seedling, uniconzole, plant growth substance, histological structure