AtNOA1 调节拟南芥中水杨酸诱导的一氧化氮积累和气孔关闭。
AtNOA1 modulates nitric oxide accumulation and stomatal closure induced by salicylic acid in Arabidopsis.
机构信息
Laboratory of Plant Stress Biology and College of Life Sciences, Henan University, Kaifeng, China.
出版信息
Plant Signal Behav. 2010 Aug;5(8):1022-4. doi: 10.4161/psb.5.8.12293. Epub 2010 Aug 1.
Abstract
Phytohormone salicylic acid (SA) has been documented to induce nitric oxide (NO) generation and stomatal closure in plants. However, the cellular components mediating these processes are limited. Here, we report that NO synthesis in guard cells and stomatal closure are markedly induced by SA in Arabidopsis wild type plants, whereas these effects caused by SA are suppressed significantly in noa1 T-DNA mutant plants. These results suggest that AtNOA1 regulates SA-triggered NO accumulation and stomatal closure in Arabidopsis.
摘要
植物激素水杨酸（SA）已被证明能诱导植物中一氧化氮（NO）的产生和气孔关闭。然而，介导这些过程的细胞成分是有限的。在这里，我们报告 SA 能显著诱导野生型拟南芥保卫细胞中 NO 的合成和气孔关闭，而 SA 引起的这些效应在 noa1 T-DNA 突变体植物中被显著抑制。这些结果表明 AtNOA1 调节拟南芥中 SA 触发的 NO 积累和气孔关闭。
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