棉花叶片响应高温的差异与夜间淀粉降解密切相关

赵文青, 徐文正, 杨锍琰, 刘玉, 周治国, 王友华

Different response of cotton leaves to heat stress is closely related to the night starch degradation

ZHAO Wen-Qing, XU Wen-Zheng, YANG Liu-Yan, LIU Yu, ZHOU Zhi-Guo, WANG You-Hua

图6 不同热敏感性品种棉铃对位叶淀粉昼夜极值响应高温胁迫的差异 纵轴为PHY370WR叶片中日最大/最小淀粉含量的变化幅度, 横轴为苏棉15叶片中日最大/最小淀粉含量的变化幅度, 图中点的分布距离斜线越远, 表示品种间差异越大。叶片中日最大/最小淀粉含量变化幅度 = (高温胁迫处理叶片日最大/最小淀粉含量 - 对照叶片日最大/最小淀粉含量)/(对照叶片日最大/最小淀粉含量)。

Fig. 6 Variation of high temperature stress to diurnal variation of starch content in leaves of cotton boll cultivars The vertical axis is the variation of maximum/minimum starch content in the leaves of PHY370WR, while the horizontal axis is the variation of maximum/minimum starch content in the leaves of Sumian 15. The farther the distribution of points in the figure is from the oblique line, the greater the difference between cultivars. Variation of maximum/minimum starch content = (maximum/minimum starch content HT - maximum/minimum starch content CK)/(maximum/minimum starch content CK).