| 赤霉素对休眠微型薯多酚氧化酶的影响 |
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| 引用本文： | 黄伟,谢奎忠,李建军.赤霉素对休眠微型薯多酚氧化酶的影响[J].黑龙江农业科学,2009(3):47-49. |
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| 作者姓名： | 黄伟 谢奎忠 李建军 |
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| 作者单位： | 1. 甘肃农业科学院马铃薯研究所,甘肃兰州,730070
2. 甘谷县农牧局,甘肃甘谷,741200 |
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| 摘 要： | 为了明确赤霉素对微型薯休眠及其酚类物质的影响。对赤霉素处理后20 d的微型薯发芽率及其酚类物质进行测定。结果表明：赤霉素能够显著地提高微型薯的发芽率，其中50 mg·L^-1GA3处理的微型薯发芽率最高，达98.1%，显著高于对照66.8%；酚类物质的测定结果表明，赤霉素浓度在50 mg·L^-1左右时，多酚氧化酶活性最低，酚类化合物的总含量相应最低，为325.0μg·g^-1.FW；酚类化合物中对微型薯休眠起主要作用的为儿茶酚和咖啡酸。
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| 关 键 词： | 赤霉素 发芽率 酚类物质 多酚氧化酶 |
Effect of Gibberellin on Polyphenolosidase Activity and Phenolic Compounds in Dormant Mini-tubers |
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| HUANG Wei,XIE Kui-zhong,LI Jian-jun.Effect of Gibberellin on Polyphenolosidase Activity and Phenolic Compounds in Dormant Mini-tubers[J].Heilongjiang Agricultural Science,2009(3):47-49. |
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| Authors: | HUANG Wei XIE Kui-zhong LI Jian-jun |
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| Institution: | 1.Potato Research Institute of Gansu Academy of Agricultural Sciences;Lanzhou;Gansu 730070;2.Agricultural and Animal Husbandry Bureau of Gangu County;Gangu;Gansu 741200 |
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| Abstract: | In order to master the gibberellin influence of dormant mini-tuber and phenolic compounds.the germination rate and phenolic compounds of mini tubers treated by gibberellin for 20 days were measured. The result showed that gibberellin treatment could significantly increase the germination rate of mini tuber, the optimum concentration of gibherellins was 50 mg·L^-1 ,which could result in the highest germination rate. The study of phenolic compounds showed that the total content of phenolic compounds and polyphenoloxidase activity was the lowest,when the concentrations of gibberellin was about 50 mg·L^-1. Catechol and caffeic acid in the phenolic compounds played a main role in dormant mini tubers. |
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| Keywords: | gibberellins germination rate phenolic compounds polyphenoloxidase |
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