| 芦荟蒽醌类物质对紫外线照射下洋葱和大蒜根尖细胞分裂的影响 |
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| 引用本文： | 王太霞,过治军,孙华,高玉霞,赵瑞飞.芦荟蒽醌类物质对紫外线照射下洋葱和大蒜根尖细胞分裂的影响[J].北方园艺,2008(12). |
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| 作者姓名： | 王太霞 过治军 孙华 高玉霞 赵瑞飞 |
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| 作者单位： | 河南师范大学,生命科学学院,河南,新乡,453007 |
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| 基金项目： | 河南省科技厅重点攻关资助项目
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河南师范大学国家级科研项目
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| 摘 要： | 以大蒜和洋葱为试材,研究了用波长为308nm的UV-B辐射灯照射,不涂抹芦荟蒽醌类物质;先涂抹芦荟蒽醌类物质,再进行UV-B照射;先进行UV-B照射,然后再涂抹芦荟蒽醌类物质,通过根尖压片法观察根尖细胞分裂过程等方式下洋葱和大蒜根尖细胞分裂的影响,根尖在自然条件下生长,不经UV-B辐射灯照射为对照(CK).结果表明:经紫外线照射过的洋葱和大蒜根尖细胞中出现了畸形核、染色体桥、落后染色体、游离染色体等异常现象.但先涂抹芦荟蒽醌类物质,然后进行UV-B照射的一组,根尖细胞中的异常现象明显减少.说明芦荟叶中的蒽醌类等次生代谢物质有屏蔽紫外线辐射、防止紫外线辐射伤害的功能.
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| 关 键 词： | 紫外线 芦荟 洋葱 大蒜 根尖细胞 |
Influences of Aloe's Anthraquinones during Ultraviolet Radiation on the Cells of Root Tip of Allium sativum and Allium cepa |
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| WANG Tai-xia,GUO Zhi-jun,SUN Hua,GAO Yu-xia,ZHAO Rui-fei.Influences of Aloe's Anthraquinones during Ultraviolet Radiation on the Cells of Root Tip of Allium sativum and Allium cepa[J].Northern Horticulture,2008(12). |
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| Authors: | WANG Tai-xia GUO Zhi-jun SUN Hua GAO Yu-xia ZHAO Rui-fei |
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| Institution: | WANG Tai-xia,GUO Zhi-jun,SUN Hua,GAO Yu-xia,ZHAO Rui-fei(College of Life Sciences,Henan Normal University,Xinxiang,Henan 453007,China) |
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| Abstract: | Under spectrum of 308nm with UV-B radiation lamp,the influences of Aloe's anthraquinones on the cells of root tip of Allium sativum and Allium cepa during ultraviolet radiation were studied.The Allium sativum and Allium cepa were separated into four groups for experiments.The first group was check group.The second group was only treated with UV-B radiation lamp which gave off the spectrum of 308 nm.Before being treated with UV-B radiation the third group was smeared with Aloe's anthraquinones components.The... |
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| Keywords: | UV-B radiation Aloe vera Allium sativum Allium cepa Cells of root tip |
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