| 抗坏血酸对苹果组培苗耐热性的生理效应 |
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| 引用本文： | 庞勇,马锋旺,徐凌飞.抗坏血酸对苹果组培苗耐热性的生理效应[J].果树学报,2005,22(2):160-162. |
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| 作者姓名： | 庞勇 马锋旺 徐凌飞 |
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| 作者单位： | 1. 甘肃农业职业技术学院,兰州,730020;西北农林科技大学园艺学院,陕西,杨陵,712100
2. 西北农林科技大学园艺学院,陕西,杨陵,712100 |
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| 基金项目： | 教育部留学回国人员科研基金资助项目(2003-14)。 |
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| 摘 要： | 用0.5 mmol/L抗坏血酸(ASA)处理苹果组培苗,在42℃的条件下进行不同时间高温胁迫处理,研究了ASA 处理对高温胁迫下苹果细胞膜相对透性、丙二醛(MDA)含量、抗氧化酶活性以及抗氧化剂含量的影响。结果表明, ASA处理可以有效地抑制抗氧化酶活性的下降,提高酶活性;同时还抑制ASA含量的下降,延缓了膜透性和丙二醛 含量的增加;但抑制了GSH含量的增加。这些结果说明,ASA处理可以增强苹果的耐热性。
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| 关 键 词： | 抗坏血酸 苹果 抗氧化酶 抗氧化剂 耐热性 |
| 文章编号： | 1009-9980(2005)02-160-03 |
| 修稿时间： | 2004年8月18日 |
Physiological effect of ascorbic acid on thermotolerance of apple plantlets from tissue culture |
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| PANG Yong,MA Feng-wang,XU Ling-fei.Physiological effect of ascorbic acid on thermotolerance of apple plantlets from tissue culture[J].Journal of Fruit Science,2005,22(2):160-162. |
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| Authors: | PANG Yong MA Feng-wang XU Ling-fei |
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| Abstract: | The tissue cultured plantlets of apple treated with 0.5 mmol /L ascorbic acid (ASA) was stressed by high temperature of 42℃. The changes of physiological index such as leakage of electrolyte, the content of MDA, the activities of antioxi-dant enzymes and the content of endogenous antioxidants were determined. The results showed that, when treated with ASA, the activities of antioxidant enzymes and the content of ASA were increased, the leakage of electrolyte, the content of MDA and the content of GSH were decreased. It is concluded that ASA treatment can enhance the thermotolerance of apple tissue cultured plantlets. |
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| Keywords: | Ascorbic acid(ASA) Apple Antioxidant enzyme Antioxidants Thermotolerance |
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