https://www.ahs.ac.cn/images/0513-353X/images/top-banner1.jpg|#|苹果
https://www.ahs.ac.cn/images/0513-353X/images/top-banner2.jpg|#|甘蓝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner3.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner4.jpg|#|灵芝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner5.jpg|#|桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner6.jpg|#|黄瓜
https://www.ahs.ac.cn/images/0513-353X/images/top-banner7.jpg|#|蝴蝶兰
https://www.ahs.ac.cn/images/0513-353X/images/top-banner8.jpg|#|樱桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner9.jpg|#|观赏荷花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner10.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner11.jpg|#|月季
https://www.ahs.ac.cn/images/0513-353X/images/top-banner12.jpg|#|菊花

园艺学报 ›› 2012, Vol. 39 ›› Issue (7): 1271-.

• 果树 • 上一篇    下一篇

早熟桃夏季红叶现象的生理机制研究

谢智华,姜卫兵,韩键,彭丽丽,张斌斌,马瑞娟   

  1. 南京农业大学园艺学院,南京 210095; 江苏省农业科学院园艺研究所,南京 210014
  • 出版日期:2012-07-25 发布日期:2012-07-25

Studies on Physiological Mechanism of Red Leaf Phenomena of Early Maturing Peach in Summer

XIE  Zhi-Hua, JIANG  Wei-Bing, HAN  Jian, PENG  Li-Li, ZHANG  Bin-Bin, MA  Rui-Juan   

  1. College of Horticulture,Nanjing Agricultural University,Nanjing 210095,China;Institute of Horticulture,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China
  • Online:2012-07-25 Published:2012-07-25

摘要: 为了揭示早熟桃夏季红叶现象的生理机制,以采果后叶色变红现象明显的‘早美’和‘春蕾’两个早熟桃品种为试材,分析夏季叶色转变过程中叶片色素和可溶性糖含量、花色素苷合成相关酶活性及净光合速率等生理指标的变化趋势。结果表明:早熟桃果实采收后叶片可溶性糖大量积累,二氢黄酮醇还原酶(DFR)等花色素苷合成相关酶活性的增加。叶片转色初期苯丙氨酸解氨酶(PAL)和查尔酮异构酶(CHI)活性变化较小,与叶片花色素苷含量相关性不显著;叶色转红之后PAL 和CHI 活性与叶片花色素苷含量显著正相关。

关键词: 桃, 早熟, 红叶, 花色素苷, 生理机制

Abstract: To uncover the physiological mechanism of red leaf phenomena of early maturing peach in summer,two early maturing peach cultivars(‘Zaomei’and‘Chunlei’) were used to research the changes of leaf pigments,soluble sugar content,anthocyanin biosynthesis related enzyme activity and net photosynthetic rate. The results showed that leaf soluble sugar accumulation increased after fruit harvesting. DFR rised obviously,PAL and CHI activity did not change much and showed no significant correlation with anthocyanin content at the early stage of leaf coloring. However,there was a significant positive correlation between PAL,CHI activity and anthocyanin content after leaves changed to be red.

Key words: peach, early maturing, red leaf, anthocyanin, physiological mechanism

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