| 红檵木叶色变化的生理生化研究 |
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| 引用本文： | 唐前瑞,陈德富,陈友云,张宏志,周朴华. 红檵木叶色变化的生理生化研究[J]. 林业科学, 2006, 42(2): 111-115 |
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| 作者姓名： | 唐前瑞 陈德富 陈友云 张宏志 周朴华 |
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| 作者单位： | 湖南农业大学园艺园林学院,长沙,410128;南开大学生物化学与分子生物学系,天津,300071;湖南农业大学科技处,长沙,410128;湖南农业大学理学院,长沙,410128 |
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| 基金项目： | 教育部高校骨干教师资助计划 |
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| 摘 要： | 红檵木(Loropetalum chinense var.rubrum)在春季新叶初发时,花红叶红,且叶片红艳可人,具有很高的观赏价值.但随着叶龄的增大,叶色发生较大变化,在初夏叶色变为暗红色,到了盛夏高温季节,叶色几乎变成了绿色,出现了生产上称之的"高温返青"现象.
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| 关 键 词： | 红檵木 叶绿素 类胡萝卜素 花色素苷 可溶性糖 苯丙氨酸解氨酶 叶色 |
| 文章编号： | 1001-7488(2006)02-0111-05 |
| 收稿时间： | 2004-05-19 |
| 修稿时间： | 2004-05-19 |
Changes of Physiology and Biochemistry during Leafcolor Transformation in Loropetalum chinense var. rubrum |
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| Tang Qianrui,Chen Defu,Chen Youyun,Zhang Hongzhi,Zhou Puhua. Changes of Physiology and Biochemistry during Leafcolor Transformation in Loropetalum chinense var. rubrum[J]. Scientia Silvae Sinicae, 2006, 42(2): 111-115 |
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| Authors: | Tang Qianrui Chen Defu Chen Youyun Zhang Hongzhi Zhou Puhua |
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| Affiliation: | 1. College of Horticulture and Landscape Architecture, Hunan Agriculturul University Changsha 410128; 2. Department of Biochemistry and Molecular Biology, Nankal University Tianjin 300071; 3. Department of Scientific Research Management, Hurrah Agricultural University Changsha 410128; 4. College of Science, Hunan Agricultural University Changsha 410128 |
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| Abstract: | In order to understand the physiological and biochemical reasons of leafcolor transformation in Loropetalum chinense var. rubrum,three types of L. chinense var. rubrum, Zihei (black purple), Zihong(red purple)and Hongzhe(red_ochre), and L. chinense were taken as materials. The contents of chlorophyll, carotenoid and soluble sugar, and activity of phenylalanine ammonialyase (PLA) in the leaves were measured from early March to June. The results showed that the contents of chlorophyll, carotenoid and soluble sugar increased gradually during the leafcolor changing from red to green, but there were obviously differences among types of Zihei, Zihong and Hongzhe. Anthocyanins contents in Zihe and Zihong leaves maintained high level, so their leaves still kept red when they got mature in early June. Phenylalanine ammonialyase (PLA) activity decreased, and had positive relationship with anthocyanin contents. Some measures such as shading or watering to lower air temperature could be taken to maintain leaves of L. chinense var. rubrum fresh red during summer. |
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| Keywords: | Loropetalum chinense var. rubrum chlorophyll carotenoid anthocyanin soluble sugar phenylalanine ammonialyase(PLA) leafcolor |
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