| Cu~(2+)对冬小麦细胞分裂及叶绿体超微结构的影响 |
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| 引用本文： | 杨其伟,郝泗城,孙建华,毕平,沈江莉,倪玉梅.Cu~(2+)对冬小麦细胞分裂及叶绿体超微结构的影响[J].天津师范大学学报(自然科学版),1993(3). |
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| 作者姓名： | 杨其伟 郝泗城 孙建华 毕平 沈江莉 倪玉梅 |
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| 作者单位： | 天津师范大学生物系电镜室，天津师范大学生物系电镜室，天津师范大学生物系电镜室，天津师范大学生物系电镜室，天津师范大学生物系电镜室，天津师范大学生物系电镜室 |
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| 摘 要： | 本文以冬小麦为实验材料,经不同浓度铜溶液处理,研究了铜肋迫对幼苗生长、细胞分裂及叶绿体超微结构的影响。实验结果表明:不同浓度的铜溶液可不同程度地抑制幼苗的生长,并导致根尖细胞有丝分裂指数的下降。较高浓度的氯化铜溶液(50ppm)处理可破坏叶绿体的膜系统,使叶绿体基粒垛迭减少,排列不规则。
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| 关 键 词： | 铜离子 冬小麦 细胞分裂 叶绿体超微结构 |
EFFECTS OF Cu~(2+)ON THE CELL DIVISION AND THE ULTRASTRUCTURE OF CHLOROPLASTS IN THE WINTER WHEAT SEEDLING |
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| YangQiwei HaoSicheng SunJianhua BiPing ShenJiangli NiYume.EFFECTS OF Cu~(2+)ON THE CELL DIVISION AND THE ULTRASTRUCTURE OF CHLOROPLASTS IN THE WINTER WHEAT SEEDLING[J].Journal of Tianjin Normal University(Natural Science Edition),1993(3). |
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| Authors: | YangQiwei HaoSicheng SunJianhua BiPing ShenJiangli NiYume |
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| Institution: | Tianjin Normal University |
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| Abstract: | In this paper, the influences of Cu~(2+) on the growth, cell division, and ultrastructure of chloroplasts in the winter wheat seeding were studied with the treatment of several concentrations of Cu~(2+). The results showed that different concentrations of Cu~(2+)could inhibit the seedling growth in varying degree and result in the reduction of mitotic index in the root-tip cells. Higher concentration of CuCl_2(50ppm) could destroy the memberane system of chloroplasts. The number of stacks of grana was reduced and the arrangement of grana was also irregular under above-mentioned conditions. |
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| Keywords: | Cu~(2+) Winter wheat Cell division Ultrastructure of chloroplasts |
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