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园艺学报 ›› 2005, Vol. 32 ›› Issue (02): 234-238.

• 研究论文 • 上一篇    下一篇

高温胁迫下番茄体内ABA水平的变化及其对花粉萌发的影响

毛胜利;杜永臣;王孝宣;朱德蔚;高建昌;戴善书   

  1. (中国农业科学院蔬菜花卉研究所, 北京100081)
  • 收稿日期:2004-08-23 修回日期:2004-12-08 出版日期:2005-04-25 发布日期:2005-04-25

Changes of Endogenous Abscisic Acid and the Effent of Exogenous ABA onPollen Germination under Heat Stress Tomato

Mao Shengli;Du Yongchen;Wang Xiaoxuan;Zhu Dewei;Gao Jianchang;Dai Shanshu   

  1. ( Institute of Vegetable and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China)
  • Received:2004-08-23 Revised:2004-12-08 Online:2005-04-25 Published:2005-04-25

摘要: 研究了番茄耐热品种和不耐热品种在高温条件下内源ABA水平的差异, 探讨了外源ABA处理对高温下花粉萌发的影响。结果表明, 在常温下, 耐热与不耐热品种叶片中ABA差异不明显, 但在高温
下, 耐热品种叶片ABA含量提高的幅度明显大于不耐热品种; 耐热品种花器官中ABA含量无论在常温还是在高温下, 都高于不耐热品种; 外源ABA处理可以显著减轻高温对花粉萌发的抑制作用。

关键词: 番茄, 耐热性, ABA, 花粉

Abstract: The investigation was done on the comparision with endogenous abscisic acid levels, and the effect of exogenous abscisic acid on the pollen germination under high temperature among different heat-tolerant tomato varieties. It showed that the leaf ABA levels had no obvious difference between heat-tolerant and heat-sensitive varieties at op timal growing temperature (25℃) , but increased greatly in heat-tolerant varieties after treatmentwith superop timal temperatures. Heat-tolerant varieties exhibited a higherABA level in flowers both at op timal and superop timal temperatures compared with heat-sensitive varieties. Application of exogenous ABA could partly alleviated inhibition of heat stress on pollen germination.

Key words: Tomato, Heat-tolerance, ABA, Pollen

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