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园艺学报 ›› 2008, Vol. 35 ›› Issue (12): 1735-1742.

• 果树 • 上一篇    下一篇

草莓果实发育过程中花色苷和黄酮醇类物质的形成

张 琼1;王红清1*;冷平1;贾乐新2   

  1. 1中国农业大学农学与生物技术学院,北京 100193; 2北京市农林科学院,北京 100097)
  • 收稿日期:2008-05-28 修回日期:2008-10-27 出版日期:2008-12-25 发布日期:2008-12-25
  • 通讯作者: 王红清

Mechanism of Anthocyanins and Flavonols in Fruit Development of Strawberries

ZHANG Qiong1,WANG Hong-qing1*, LENG Ping1, JIA Le-xin2
  

  1. (1College of Agriculture and Biotechnology,China Agricultural University,Beijing 100193,China; 2Beijng Academy and Forestry Science, Beijing 100097 )
  • Received:2008-05-28 Revised:2008-10-27 Online:2008-12-25 Published:2008-12-25
  • Contact: WANG Hong-qing

摘要:

以‘赛娃’草莓为试材,研究了果实中花色苷和类黄酮类物质的形成机制。在‘赛娃’果实中共检测到12种花色苷和7种黄酮醇类物质。幼果期(盛花后15~25 d)果实内没有花色苷的积累,但黄酮醇类物质大量积累;随着果实成熟,花色苷含量逐渐增加,黄酮醇类物质含量降低;遮光导致花色苷和黄酮醇类物质的积累降低了70%~90%,尤其是花青素糖苷和槲皮素糖苷的含量降低了90%以上,表明遮光抑制草莓花色苷和黄酮醇类物质的积累,且对花青素、槲皮素合成的抑制明显高于花葵素和山奈酚。草莓果实类黄酮类物质代谢在发育前期主要向双氢槲皮素方向合成,果实成熟期主要向花葵素方向合成。

关键词: 草莓, 花色苷, 黄酮醇, 形成机制

Abstract:

‘Selva’ strawberries (Fragaria×ananassa) were used to study the effects of the mechanism of anthocyanins and flavonols. 12 anthocyanins and 7 flavonols were detected in 'Selva' fruits. The results showed that no anthocyanins were accumulated while abundant flavonols were synthesized in young fruits 15 to 25 days after full bloom. Thereafter, the anthocyanins increased continuously with the fruit development. On the contrary, the content of flavonols in fruits was decreased. Shading reduced fruit anthocyanins and flavonols by 70%~90%, particularly cyanins and quercitrins by 90%. These results may imply that the accumulation of anthocyanins and flavonols were restrained by shading in strawberry, and the light effects on cyanidin and quercetin were greater than on pelargonidin and kaempferol. Two major biosynthates were found in the pathway of accumulating anthocyanins, they were dihydroquercetin at the stage of young fruit and pelargonidin at the stage of mature fruit.

Key words: strawberry, anthocyanin, flavonol, mechanism

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