| 欧洲鹅耳枥秋冬变色期叶色变化的生理特性研究 |
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| 引用本文： | 程龙霞,;祝遵凌,;徐惠群,;仲秀林.欧洲鹅耳枥秋冬变色期叶色变化的生理特性研究[J].云南林业科技,2014(6):143-147. |
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| 作者姓名： | 程龙霞 ;祝遵凌 ;徐惠群 ;仲秀林 |
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| 作者单位： | [1]南京林业大学,江苏南京210037; [2]江苏省彩色植物多角度开发工程技术研究中心,江苏靖江214500 |
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| 基金项目： | 江苏省工程技术研究中心建设项目（BM2013478）,江苏省六大人才高峰项目（NY-029）,江苏省“青蓝工程”资助项目（2012）,江苏高校优势学科建设工程资助项目（PAPD）. |
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| 摘 要： | 以欧洲鹅耳枥1年生幼苗为材料，通过测定10月下旬-12月上旬变色期叶色、色素含量、酶活性、可溶性糖和光合特性的变化，研究其呈色机理。结果表明，欧洲鹅耳枥在秋季变色的主要原因是叶绿色含量下降，类胡萝卜素颜色呈现，且叶绿素和类胡萝卜素含量变化呈极显著正相关（ P＜0.01）；变色期花色素苷与PAL活性、可溶性糖含量一直处于下降趋势，呈正相关，与POD活性、可溶性蛋白的含量呈显著负相关；变色过程中，气孔因素不是导致光合速率下降的主要原因。
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| 关 键 词： | 欧洲鹅耳枥 秋季叶色变化 色素含量 酶的活性 可溶性糖 光合特性 |
Physiological Characteristics of Leaf Color Changes of Carpinus betulus in Autumn and Winter |
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| Institution: | CHENG Long-xia, ZHU Zun-ling, XU Hui-qun, ZHONG Xiu-lin ( 1. Nanjing Forestry University, Nanjing Jiangsu 210037, P. R. China; 2. Jiangsu Multi-Angle Development Research Center of Colored Plants, Jingjiang Jiangsu 214500, P. R. China) |
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| Abstract: | In order to reveal the physiological characteristics of the changes of Carpinus betulus leaf color, the one-year-old seedlings were chosen as experimental material.The variation of leaf color, pigments contents, enzyme activity, soluble sugar and photosynthesis characteristics were measured during the color-changing period from the last ten-day of October to the first ten-day of December.The results indicated that main reason for the leaf color changing was the decreasing of chlorophyll and rendering of carotenoid, which showed a significant positive correla-tion （ P＆lt;0.01） .Meantime, tendency of PAL activity and soluble sugar contents was consistent with anthocyanin change, which was observed always descending.There was a great negative correlation among the anthocyanin, POD activity and soluble proteins.Stomatal factors were not the main reason of photosynthetic rate＇s declining. |
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| Keywords: | Carpinus betulus leaf color changes in autumn pigments contents enzyme activity soluble sugar photosynthesis characteristic |
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