| 镉离子诱导对洋葱根尖及表皮细胞凋亡的影响研究 |
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| 引用本文： | 赵红梅,王慧阳.镉离子诱导对洋葱根尖及表皮细胞凋亡的影响研究[J].北方园艺,2011(6):146-148. |
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| 作者姓名： | 赵红梅 王慧阳 |
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| 作者单位： | 晋中学院生物科学与技术学院,山西晋中,030600;晋中学院生物科学与技术学院,山西晋中,030600 |
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| 摘 要： | 以洋葱根尖细胞和鳞茎内表皮细胞为试材,用不同浓度氯化镉溶液为诱导剂,研究Cd2+对洋葱根尖凋亡的影响。结果表明:Cd2+能诱发根尖细胞凋亡和染色体畸变,且凋亡现象随着Cd2+处理浓度的增加和处理时间的延长而严重,有微核出现和细胞核逐渐解体等现象;洋葱表皮细胞随Cd2+浓度增高及处理时间的延长,表皮细胞逐渐发生质壁分离,而且越来越严重,并且细胞核发生偏离,逐渐靠近细胞壁等现象。
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| 关 键 词： | 细胞凋亡 洋葱根尖 染色体畸变 |
Apopotosis Induced by Cd~(2+) in Root Tips and Endocuticle Cells of Onion |
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| ZHAO Hong-mei,WANG Hui-yang.Apopotosis Induced by Cd~(2+) in Root Tips and Endocuticle Cells of Onion[J].Northern Horticulture,2011(6):146-148. |
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| Authors: | ZHAO Hong-mei WANG Hui-yang |
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| Institution: | ZHAO Hong-mei,WANG Hui-yang(School of Life Science and Technology,Jinzhong University,Jinzhong,Shanxi 030600) |
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| Abstract: | Different concentrations of cadmium chloride solution on root tip cell and endocuticle cells of onion were treated.The results showed that Cd2+ could induce apoptosis of root tip and chromosome aberration.Apopotosis was greatly induced with increasing Cd2+ concentration and treatment time.The different phenomenon was appeaed including micronucleus and the dissolution of cell nuclei and so on.When treated by the same Cd2+ concentration and treatment time endocuticle cells nuclei of onion were highly vacuolat... |
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| Keywords: | apopotosis onion root tip chromosome aberration |
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