| 干旱胁迫下金线兰渗透调节物质的变化规律 |
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| 引用本文： | 周黎,龚宁,彭健.干旱胁迫下金线兰渗透调节物质的变化规律[J].贵州科学,2008,26(4). |
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| 作者姓名： | 周黎 龚宁 彭健 |
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| 作者单位： | 1. 贵州师范大学生物技术与工程学院,贵州,贵阳,550001
2. 贵州师范大学生物技术与工程学院,贵州,贵阳,550001;贵州省山地环境信息系统与生态环境重点实验室,贵州,贵阳,550001 |
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| 基金项目： | 贵州省科学技术基金项目(黔科合J字(2008)2565号 |
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| 摘 要： | 以3种不同来源的金线兰组培苗(种子苗、根状茎苗、地上茎苗)为实验材料,设置5个土壤干旱梯度(9、13、17、21、25d),以0d为对照,研究金线兰组培苗渗透调节物质在土壤干旱胁迫下的变化规律,结果表明:可溶性糖随着时间的延长一直升高,3种苗变化规律比较一致;可溶性蛋白和游离脯氨酸都是先升高后降低,但是变化幅度差异较大,脯氨酸达到高峰的时间也不同.
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| 关 键 词： | 金线兰 组培苗 土壤干旱胁迫 渗透调节物质 |
CHANGE LAW OF OSVIOTIC ADJUSIMENT SUBSTANCE FOR ANONECTOCH ULUS ROXB URGH H (WALL. ) LINDL UNDER DROUGHT STRESS |
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| ZHOU Li,GONG Ning,PENG Jian.CHANGE LAW OF OSVIOTIC ADJUSIMENT SUBSTANCE FOR ANONECTOCH ULUS ROXB URGH H (WALL. ) LINDL UNDER DROUGHT STRESS[J].Guizhou Science,2008,26(4). |
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| Authors: | ZHOU Li GONG Ning PENG Jian |
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| Institution: | 1.School of Biological Technology and Engineering;Guizhou Normal University;Guiyang;Guizhou 550001;2.Guizhou Provincial Key Laboratory for Mountain Environment;Guizhou 550001 |
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| Abstract: | Taking plantlets of Anoectochilus roxburghii(Wall.) Lindl.of three kinds of different sources(seedling,rhizome,overground stem)as experimental materials,soil drought stress of five gradients(9,13,17,21,25 days) and 0-day comparison were set up to study the change law of osmotic adjustment substance for plantlets of Anoectochilus roxburghii under soil drought stress.The results showed that soluble sugar increased all the way as time prolongs,and change law of three kinds of plantlets were in unanimity relati... |
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| Keywords: | Anoectochilus roxburghii（wall ） Lindl plantlets soil drought stress osmotic adjustment substance |
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