外源海藻糖增强高表达转玉米C<sub>4</sub>型<i>PEPC</i>水稻耐旱性的机制

外源海藻糖增强高表达转玉米C₄型PEPC水稻耐旱性的机制

李佳馨¹^,², 李霞¹^,²^,³^,^*(

), 谢寅峰¹

Mechanism on Drought Tolerance Enhanced by Exogenous Trehalose in C₄-PEPC Rice

Jiaxin Li¹^,², Xia Li¹^,²^,³^,^*(

), Yinfeng Xie¹

图3. 海藻糖处理维持干旱胁迫下水稻叶片的光合性能
模拟干旱处理2小时后PC和WT的最大光化学效率(F_v/F_m) (A)、有效光化学效率(F_v′/F_m′) (B)、实际光化学效率(Φ_PSII) (C)、光化学淬灭系数(qP) (D)和非光化学淬灭系数(NPQ) (E)。缩写同图1。图中数值代表来自3个生物学重复的平均值±标准差(n=6)。不同小写字母的柱值表示差异显著(P<0.05) (Student-Neuman-Keuls)。

Figure 3. Trehalose treatment maintain the photosynthetic performance of rice leaves under drought stress F_v/F_m
(A), F_v′/F_m′ (B), Φ_PSII (C), qP (D) and NPQ (E) of PC and WT after 2 hours of simulated drought treatment. Abbreviations are the same as those given in Figure 1. Values represent means±SD (n=6) from three biological replicates. Bars labeled with different lowercase letters indicate significant differences (P<0.05) (Student-Neuman-Keuls).