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中国农学通报 ›› 2009, Vol. 25 ›› Issue (16): 161-166.

• 林学 园艺 园林 • 上一篇    下一篇

温度胁迫对杨梅光合作用的影响

邵 毅,叶文文,徐 凯   

  • 收稿日期:2009-03-16 修回日期:2009-04-25 出版日期:2009-08-20 发布日期:2009-08-20

Effect of temperature stress on Photosynthesis in Myrica rubra leaves

Shao Yi, Ye Wenwen, Xu Kai   

  • Received:2009-03-16 Revised:2009-04-25 Online:2009-08-20 Published:2009-08-20

摘要: 本文利用液相氧电极研究低温(2℃和10℃)和高温(35℃和40℃)胁迫对荸荠和东魁两个杨梅品种的光合作用和呼吸作用的影响。结果表明,温度胁迫后,杨梅叶片的净光合速率明显低于对照(25℃),并且随着胁迫的加剧,净光合速率进一步降低;而呼吸速率则大于对照,并随着胁迫的加剧而升高。胁迫解除后,杨梅叶片的净光合速率和呼吸速率都未恢复到正常水平。本实验还研究了不同处理温度的杨梅叶片在不同反应液温度下(2℃和10℃、35℃和40℃)的净光合速率和呼吸速率。

关键词: 稻瘟病菌, 稻瘟病菌, SSR, 体系优化

Abstract: Photosynthetic and respiratory rates of different waxberry varieties (“Biqi” and “Dongkui” under low temperature stress (2℃ and 10℃) and high temperature stress (35℃ and 40℃) were determined by using an oxygen electrode. The results showed that net photosynthetic rate of Myrica rubra leaves reduced markedly when compared to control one (25℃) as the temperature stress being severer, while respiratory rate increased accordingly. Neither net photosynthetic rate nor respiratory rate came back to natural level while the Myrica rubra leaves freed from temperature stress. Besides, studies on photosynthetic and respiratory rates under different temperatures (2, 10, 35 and 40℃) of NaHCO3 solution also showed the similar results. It proved that temperature played important role in Photosynthesis of Myrica rubra leaves.