| 番茄根边缘细胞生物学特性及铝对其活性的影响 |
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| 引用本文： | 孙达丽,崔洁晨,徐根娣,刘鹏.番茄根边缘细胞生物学特性及铝对其活性的影响[J].亚热带植物科学,2006,35(2):1-4. |
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| 作者姓名： | 孙达丽 崔洁晨 徐根娣 刘鹏 |
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| 作者单位： | 1. 丽水职业技术学院,环境与资源系,浙江,丽水,323000
2. 浙江师范大学,植物学实验室,浙江,金华,321004 |
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| 基金项目： | 国家自然科学基金;浙江省自然科学基金 |
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| 摘 要： | 以番茄为试材，采用悬空气法，探讨番茄根边缘细胞的生物学特性及铝对其活性的影响。结果表明，第1个番茄边缘细胞几乎与初生根同时出现，当根长到10mm时，番茄边缘细胞达最大值（893个）。边缘细胞的活性（成活率）一直维持在93％以上。PME活性随着根的伸长有所降低。铝对番茄边缘细胞产生明显毒害，随着铝浓度和处理时间的增加，边缘细胞的活性显著降低。
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| 关 键 词： | 边缘细胞 生物学特性 铝毒 番茄 |
| 文章编号： | 1009-7791（2006）02-0001-04 |
| 收稿时间： | 2006-05-09 |
| 修稿时间： | 2006年5月9日 |
Biological Characteristics of Border Cell of Tomato and Effect of Aluminum on Its Viability |
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| SUN Da-li,CUI Jie-chen,XU Gen-di,LIU Peng.Biological Characteristics of Border Cell of Tomato and Effect of Aluminum on Its Viability[J].Subtropical Plant Science,2006,35(2):1-4. |
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| Authors: | SUN Da-li CUI Jie-chen XU Gen-di LIU Peng |
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| Abstract: | The biological characteristics of border cell of tomato(Lycopersicon esculentum) and the effect of aluminum on its viability were studied by aeroponic culture.The results showed that the first border cell almost occurred synchronously with primary root tip emergence and the numbers of border cells reached its maximum(893) when the root was 10mm long.The viability of border cell maintained over 93% and increased a little with the elongation of root.However,PME(Pectin Methylesterase) activities decreased slightly with the elongation of root.With the increase of concentration or time of aluminum treatment,viability of border cell decreased significantly.The results also indicated that aluminum was harmful to border cell of tomato. |
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| Keywords: | border cell biological characteristics aluminum toxicity tomato |
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