| 铝(Al)对大麦根尖细胞分裂的影响 |
| |
| 引用本文： | 刘东华,蒋悟生.铝(Al)对大麦根尖细胞分裂的影响[J].天津师范大学学报(自然科学版),1993(3). |
| |
| 作者姓名： | 刘东华 蒋悟生 |
| |
| 作者单位： | 天津师范大学生物系，天津师范大学生物系 |
| |
| 摘 要： | 本文以大麦品种(浙皮2号和嵊县无芒六梭)为材料,研究不同浓度氯化铝溶液对根尖细胞有丝分裂和染色体形态的影响。结果表明,两个大麦品种对铝毒害反应不同,浙皮2号耐铝性较强;嵊县无芒六梭对铝较为敏感。根尖细胞分裂指数随着Al~(3+)浓度的增高而递减。不同浓度的Al~(3+)处理都能诱导染色体发生畸变,表现为C-有丝分裂,染色体桥和染色体粘连。此外,对Al~(3+)的毒害机理进行简略讨论。
|
| 关 键 词： | 大麦 Al~(3+) 有丝分裂 染色体畸变 |
EFFECTS OF ALUMINIUM ON CELL DIVISION IN ROOT TIP CELLS OF BARLEY |
| |
| LiuDonghua JiangWusheng.EFFECTS OF ALUMINIUM ON CELL DIVISION IN ROOT TIP CELLS OF BARLEY[J].Journal of Tianjin Normal University(Natural Science Edition),1993(3). |
| |
| Authors: | LiuDonghua JiangWusheng |
| |
| Abstract: | The effects of different concentrations of aluminium chloride on cell division and chromosomal morphology in the root tip cells of two barley cultivars Zhe Pi 1 and Shengxian Wumang Liuling were studied. The results showed the tolerance to Al~(3+)is different in the two cultivars. Shengxian Wumang Liuling is more sensitive to Al~(3+) than Zhe Pi 1. The mitotic index dereases progressively with increased Al concentration. The different concentrations cause mitotic irregularities comprising c-mitosis, anaphase bridges and chromosome stickiness. The possible mechanism of the A13+ poisoning of root meristem cells of barley is also briefly discussed. |
| |
| Keywords: | barley Al~(3+) mitosis chromosome aberration |
| 本文献已被 CNKI 等数据库收录！ |
