| 茭白膨大前后肉质茎中抗坏血酸含量变化初探 |
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| 引用本文： | 刘伟,邓建平,郭得平,黄建中. 茭白膨大前后肉质茎中抗坏血酸含量变化初探[J]. 长江蔬菜, 2010, 0(14): 43-45. DOI: 10.3865/j.issn.1001-3547.2010.14.014 |
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| 作者姓名： | 刘伟 邓建平 郭得平 黄建中 |
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| 作者单位： | 浙江大学原子核农业科学研究所,农业部、浙江省核农学重点实验室,浙江,杭州,310029;缙云县农业局;浙江大学农业与生物技术学院 |
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| 基金项目： | 国家公益性行业(农业)科研专项经费项目 |
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| 摘 要： | 对茭白肉质茎膨大前后的主要内源抗氧化剂—抗坏血酸水平以及膜脂过氧化产物—丙二醛（MDA）含量的变化作了研究。结果表明,肉质茎膨大后,其MDA含量大幅增加,抗坏血酸含量大幅下降,氧化型抗坏血酸比例显著上升。而同时期成熟叶片中的MDA含量基本不变。说明茭白肉质茎在黑粉菌大量繁殖引起膨大的过程中存在较强烈的氧化胁迫。
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| 关 键 词： | 茭白 肉质茎膨大 抗坏血酸 氧化胁迫 |
Study on Changes of Ascorbate Content in Swollen Shoot of Water Bamboo(Zizania latifolia Turcz.) |
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| LIU Wei,HUANG Jianzhong. Study on Changes of Ascorbate Content in Swollen Shoot of Water Bamboo(Zizania latifolia Turcz.)[J]. Journal of Changjiang Vegetables, 2010, 0(14): 43-45. DOI: 10.3865/j.issn.1001-3547.2010.14.014 |
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| Authors: | LIU Wei HUANG Jianzhong |
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| Affiliation: | ,GUO Deping ( 1.Institute of Nuclear Agricultural Sciences/Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province,Zhejiang University,Hangzhou,310029; 2.College of Agriculture and Biotechnology,Zhejiang University ) |
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| Abstract: | The shoot swelling of water bamboo （Zizania. latifolia Turcz.） was studied in terms of lipid peroxidation and changes of antioxidant contents. The MDA content was dramatically increased and ascorbate level declined after swelling of the edible shoot. The ratio of dehydro-ascorbate to total ascorbate was significantly elevated in the swollen shoot. During the same period,MDA content of mature leaf was not affected. Based on these results,it is suggested that an oxidative stress should be induced in the hypertrophic shoot as the associated smut fungus （Ustilago esculenta P. Henn.） proliferated within it. |
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| Keywords: | Zizania latifolia Turcz. Shoot swelling Ascorbate Oxidative stress |
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