丙酯草醚对植物细胞有丝分裂的影响
Effect of 2-pyrimidinyloxy-N-arylbenzylamine Derivatives on Plant Mitosis
兰大伟 1刘永立2
作者信息
- 1. 浙江工商大学东方语言文化学院，浙江杭州310058
- 2. 浙江大学农业与生物技术学院，浙江杭州310058
- 折叠
摘要
[目的]探讨丙酯草醚的除草机理。[方法]以洋葱根尖为试材，探讨不同时间和不同浓度丙酯草醚对根尖分生细胞有丝分裂的影响。[结果]随着丙酯草醚处理浓度的增加，洋葱根尖有丝分裂指数逐渐下降；在同一浓度下，随着处理时间的延长，有丝分裂指数也呈下降趋势。对不同处理下的洋葱根尖细胞形态观察发现，在低浓度（0．0125％）丙酯草醚短时间（2 h）处理下，洋葱根尖分生区中仍可见中、后、末期3种分裂状态的细胞。但在超过8 h的高浓度（0．1000％）丙酯草醚处理下，分裂态细胞明显减少，分生区有明显较多分裂中期的细胞。[结论]丙酯草醚对根尖细胞的分裂有明显抑制作用，并使根尖细胞停滞于有丝分裂中期。
Abstract
Objective] The aim was explore the herbicidal mechanism of 2-pyrimidinyloxy-N-arylbenzylamine derivatives (ZJ0273).[Method] We studied the effect of ZJ0273 on meristematic zone cells and mitosis of onion root tips .[ Result] The onion root tip mitotic index gradually de-creased with ZJ0273 concentration increasing,and the mitotic index also showed a decline trend with the extension of treatment time at the same concentration.The cellular morphology of onion root tip was observed at low concentrations (0.012 5%) and in short time (2 h),and three stages of division mitotic cells could be seen.But the division state cells significantly reduced in high concentration (0.100 0%) treatment after more than 8 h,and meristematic zone had more metaphase cells .[ Conclusion ] The mitotic index of root tips is decreased under the treatment by ZJ0273,and mitosis cells stagnate at the interphase.
关键词
丙酯草醚/根尖/有丝分裂Key words
2-pyrimidinyloxy-N-arylbenzylamine derivatives/Root tip/Mitosis引用本文复制引用
基金项目
浙江省科技厅科技攻关重大农业项目(J31334)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据