AtMYB77促进NO合成参与调控干旱胁迫下拟南芥侧根发育

车永梅^†, 孙艳君^†, 卢松冲, 侯丽霞, 范欣欣, 刘新^*(

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AtMYB77 Involves in Lateral Root Development via Regulating Nitric Oxide Biosynthesis under Drought Stress in Arabidopsis thaliana

Yongmei Che^†, Yanjun Sun^†, Songchong Lu, Lixia Hou, Xinxin Fan, Xin Liu^*(

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图2. 干旱对拟南芥Atmyb77-1突变体和AtMYB77过表达株系侧根生长和发育相关基因表达的影响
(A) 干旱胁迫下Atmyb77-1突变体根系生长表型(Bar=1 cm); (B) 干旱对拟南芥Atmyb77-1突变体和AtMYB77过表达株系侧根数目的影响; (C) 干旱对拟南芥Atmyb77-1突变体和AtMYB77过表达株系侧根长度的影响; (D) 干旱对拟南芥Atmyb77-1突变体和AtMYB77过表达株系根部AtCYCA2;1表达的影响; (E) 干旱对拟南芥Atmyb77-1突变体和AtMYB77过表达株系根部AtCDKA;1表达的影响。CK: 对照; WT: 野生型。不同小写字母表示不同株系的不同处理间差异显著(P<0.05)。

Figure 2. Effects of drought stress on lateral root growth and expression of lateral root development related genes in Arabidopsis Atmyb77-1 mutant and AtMYB77 overexpression lines
(A) Root phenotypes of Atmyb77-1 mutant under drought stress (Bar=1 cm); (B) Effects of drought stress on lateral root number of Atmyb77-1 mutant and AtMYB77 overexpression lines; (C) Effects of drought stress on lateral root length of Atmyb77-1 mutant and AtMYB77 overexpression lines; (D) Effects of drought stress on relative expression level of AtCYCA2;1 in roots of Arabidopsis Atmyb77-1 mutant and AtMYB77 overexpression lines; (E) Effects of drought stress on relative expression level of AtCDKA;1 in roots of Arabidopsis Atmyb77-1 mutant and AtMYB77 overexpression lines. CK: Control; WT: Wild type. Different lowercase letters indicate significant differences among different treatments of different lines at P<0.05.