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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
EFFECT OF LaCl 3 ON SEEDLING GROWTH、ROOT_TIPCELL MITOSIS, ACTIVITIES OF PEROXIDASE AND IAA OXIDASE OF RICE
【摘要】 用不同浓度的LaCl3处理水稻种子,结果表明,当LaCl3浓度在0.1~1.0mg/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 LaCl 3, when the concentration of LaCl 3 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 LaCl 3 was higer than 5.0 mg/L, the activities of both enzymes were increased.
- 【文献出处】 植物学通报 ,CHINESE BULLETIN OF BOTANY , 编辑部邮箱 ,1999年03期
- 【分类号】S511.101
- 【被引频次】4
- 【下载频次】84