植物学报 ›› 1999, Vol. 16 ›› Issue (03): 293-296.

• 研究报告 • 上一篇    下一篇

LaCl3对水稻幼苗生长 两种酶的活性及根尖细胞有丝分裂的影响

陈为钧 顾月华 赵贵文   

  1. (中国科学技术大学应用化学系　合肥　230026）
  • 出版日期:1999-05-20 发布日期:1999-05-20
  • 通讯作者: 顾月华

Effect of LaCl3 on Seedling Growth, Root-tip Cell Mitosis, Activities of Peroxidase and IAA-Oxidase of Rice

CHEN Wei-Jun, GU Yue-Hua and ZHAO Gui-Wen   

  1. (Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026)
  • Online:1999-05-20 Published:1999-05-20
  • Contact: GU Yue-Hua

PDF (PC)

952

被引次数

3

摘要： 用不同浓度的LaCl3处理水稻种子，结果表明，当LaCl3浓度在0.1～1.0 mg/L时可提高发芽率，促进幼苗生长、根尖细胞有丝分裂指数明显上升，过氧化物酶和吲哚乙酸氧化酶活性下降。但随LaCl3浓度提高，则抑制幼苗生长，细胞有丝分裂减缓，两种酶活性均增加。且随浓度提高，其作用效果急剧加大。

Abstract: The seed germination, seedling growth, the index of root cell mitosis of rice were increased by LaCl3, when the concentration of LaCl3 was lower than 1.0 mg/L, and the activities of peroxidase and IAA-oxidase were decresed. But the seed germination, seedling growth, root cell mitosis of rice were retarded when the concentration of LaC13 was higer than 5.0 mg/L, the activities of both enzymes were increased.

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