| 三唑酮对离体黄瓜子叶过氧化物酶活性及蛋白质含量的影响 |
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| 引用本文： | Feng Z,Wang J,Feng Z. 三唑酮对离体黄瓜子叶过氧化物酶活性及蛋白质含量的影响[J]. 环境科学, 2002, 23(5): 126-128 |
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| 作者姓名： | Feng Z Wang J Feng Z |
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| 作者单位： | 1. 中国科学院生态环境研究中心,北京,100085
2. 兰州大学干旱农业生态国家重点实验室,兰州,730000 |
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| 基金项目： | 中华农业科教基金资助项目 (97 0 1 0 3) |
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| 摘 要： | 20mg/L三唑酮能显著地抑制离体黄瓜子叶叶绿素a、b、可溶性蛋白质和游离脯氨酸含量及叶绿素a/b的下降,表明三唑酮抑制子叶的衰老。与此同时,三唑酮能不同程度地抑制过氧化物酶（POD）活性升高和H2O2的累积。在黄瓜子叶衰老过程中,叶绿素及蛋白质含量均与POD、H2O2成显著的负相关,表明三唑酮可能通过POD－H2O2酶促系统来抑制叶绿素和可溶性蛋白质的降解。
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| 关 键 词： | 三唑酮 离体黄瓜子叶 过氧化物酶 活性 蛋白质 杀菌剂 |
| 文章编号： | 0250-3301(2002)05-03-0126 |
| 修稿时间： | 2001-10-30 |
Effect of triadimefon on activity of peroxidase and soluble protein content in detached cucumber cotyledons |
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| Feng Zhaozhong,Wang Jing,Feng Zongwei. Effect of triadimefon on activity of peroxidase and soluble protein content in detached cucumber cotyledons[J]. Chinese Journal of Environmental Science, 2002, 23(5): 126-128 |
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| Authors: | Feng Zhaozhong Wang Jing Feng Zongwei |
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| Affiliation: | Research Center for Eco-Environmental Sciences, CAS, Beijing 100085, China. zhzfeng@263.net |
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| Abstract: | Contents of chlorophyll a, chlorophyll b, soluble protein and proline, as well as the ratio chlorophyll a/b in detached cotyledons of cucumber were distinctly increased by treating with 20 mg/L triadimefon, which suggested that triadimefon can effectively retard the senescence of detached cotyledons in cucumber. Triadimefon could inhibit the increase of peroxide (POD) activity and H 2O 2 content in different degree. It was found that contents of chlorophyll and protein were markedly negative correlated with the activity of POD and with the content of H 2O 2 respectively during the senescence of cotyledons. These results indicated triadimefon inhibit the degradation of chlorophyll and protein in cucumber cotyledons through POD H 2O 2 enzyme system. |
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| Keywords: | triadimefon detached cucumber cotyledon peroxidase chlorophyll protein proline |
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