为了研究低能N离子束的细胞遗传学效应，以不同剂量的N离子束对蚕豆种子的种胚进行辐照，观察分析根尖细胞的微核率、有丝分裂指数和染色体畸变效应。研究发现，离子柬的注入抑制了根尖细胞的有丝分裂，干扰了正常的有丝分裂过程，引发了染色体的结构、行为和数目畸变；随着离子注入剂量的增加，微核率增加、有丝分裂指数降低、染色体畸变率增加。
In order to study the cytogenetic effects of low-energy nitrogen ion irradiation, broad bean seed embryo was irradiated by different doses of nitrogen ions. Micronucleus rate, mitotic index and chromo- some aberration in root-tip cells were analyzed. The results showed that the injection of ions inhibited mi- tosis of root tip cells, interfered the normal process of mitosis, caused aberrations of chromosome struc- ture, behavior and number. The frequency of micronucleus and chromosomal aberrations increased with the increasing radiation dosage, while mitotic index decreased.
参考文献
| [1] | 余增亮.物理,1997,26(6):333. |
| [2] | 卫增泉,颉红梅,梁剑平,等.原子核物理评论,2003,20(1):38. |
| [3] | 余增亮.离子束生物技术引论.合肥:安徽科学技术出版社,1998,195-222. |
| [4] | 路淑霞,姬生栋,岳春辉,等.河南师范大学学报,2011,39(1):165. |
| [5] | 张怀渝,宋云,任正隆.四川农业大学学报,2005,23(2):147. |
| [6] | 程备久,田秋元,林毅,等.安徽农学院学报,1991,18(2):148. |
| [7] | 武振华,张红,王新宇,等.原子核物理评论,2010,27(3):335. |
| [8] | 官梅,李枸.作物学报,2006,32(6):878. |
| [9] | 颉红梅,郝冀方,卫增泉,等.激光生物学报,2003,12(5):346. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%