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当前位置: 首页 > 文章 > 红檵木叶色变化的生理生化研究 林业科学 2006,42 (2) 111-115
Position: Home > Articles > Changes of Physiology and Biochemistry during Leafcolor Transformation in Loropetalum chinense var. rubrum Scientia Silvae Sinicae 2006,42 (2) 111-115

红檵木叶色变化的生理生化研究

作  者：
唐前瑞;陈德富;陈友云;张宏志;周朴华
单  位：
湖南农业大学科技处;湖南农业大学园艺园林学院;湖南农业大学理学院;南开大学生物化学与分子生物学系
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
摘  要：
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.
译  名：
Changes of Physiology and Biochemistry during Leafcolor Transformation in Loropetalum chinense var. rubrum
作  者：
Tang Qianrui1 Chen Defu2 Chen Youyun3 Zhang Hongzhi+1 Zhou Puhua4(1. College of Horticulture and Landscape Architecture, Hunan Agricultural University Changsha 410128; 2. Department of Biochemistry and Molecular Biology,Nankai University Tianjin 300071; 3. Department of Scientific Research Management, Hunan Agricultural University Changsha 410128;4. College of Science, Hunan Agricultural University Changsha 410128)
关键词：
Loropetalum chinense var. rubrum; chlorophyll; carotenoid; anthocyanin; soluble sugar; phenylalanine ammonialyase(PLA); leafcolor
摘  要：
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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