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| 黄兰(Michelia champaca L.)花开放和衰败过程中生理生化指标的变化 | |
| 引用本文： | 蒋冬月,沈鑫,李永红,潘会堂.黄兰(Michelia champaca L.)花开放和衰败过程中生理生化指标的变化[J].中国农学通报,2013,29(16):125-128. |
| 作者姓名： | 蒋冬月 沈鑫 李永红 潘会堂 |
| 作者单位： | 1. 北京林业大学园林学院/国家花卉工程技术研究中心,北京,100083 2. 中国科学院植物研究所,北京,100093 3. 深圳职业技术学院,广东深圳,518055 |
| 基金项目： | 深圳市建筑公务署项目“深圳新医院康复花园影响因素的研究”(SZCG2010025750)；国家“十一五”科技支撑计划项目(2006BAD07B09)。 |
| 摘 要： | 为了研究瓶插黄兰(Michelia champaca L.)花开放和衰败过程中的生理生化反应。以黄兰不同开花阶段的花瓣为材料，瓶插观察其外部形态特征变化，测其超氧化物歧化酶(SOD)、过氧化物酶(POD)和可溶性蛋白含量的变化。结果表明，黄兰切枝单花平均瓶插寿命为8.5天。花朵开放和凋谢过程中，花瓣中SOD活性呈现先上升后下降趋势，盛花期活性最强；POD活性在整个过程中持续上升；可溶性蛋白含量在开花前期逐渐升高，显色期后则快速下降。抗氧化酶活性的下降是黄兰花衰败的生理原因之一。 |
| 关 键 词： | 黄兰 开花 衰老 生理生化指标 抗氧化酶 |
| 收稿时间： | 2012/11/8 0:00:00 |
| 修稿时间： | 2012/12/10 0:00:00 |
Physiological and Biochemical Characteristics of Michelia champaca during Florescence and Flower Senescence |
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| Jiang Dongyue , Shen Xin , Li Yonghong , Pan Huitang.Physiological and Biochemical Characteristics of Michelia champaca during Florescence and Flower Senescence[J].Chinese Agricultural Science Bulletin,2013,29(16):125-128. | |
| Authors: | Jiang Dongyue Shen Xin Li Yonghong Pan Huitang |
| Abstract: | The physiological and biochemical response of Michelia champaca flowers during the process of flower opening and fading. The petals of M. Champaca at different developmental stages were used as materials to observe the changes of morphological characteristics and determine the indexes of dismutase (SOD) activity, peroxidase (POD) activity and soluble protein content.The results showed that the average vase life of M. champaca cut shoots was 8.5 days. The activity of superoxide dismutase (SOD) in petals increased first and then declined during flower opening and fading, and reached highest at full blossom stage. The activity of peroxidase (POD) increased with flowering and fading. Soluble protein content in petal gradually rose at the beginning of flowering, and then rapidly declined after petal colour changing stage. The decreasing of activity of antioxidant enzymes in petal tissue might be the causal factor of senescence of M. champaca flowers. |
| Keywords: | Michelia champaca L flowering senescence physiological and biochemical index antioxidant enzyme |
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