2012年3月5日 · To investigate the roles of two Arabidopsis (Arabidopsis thaliana) PLDs, PLDα1 and PLDδ, in ABA signaling in guard cells, we analyzed ABA responses in guard cells using Arabidopsis wild type, pldα1 and pldδ single mutants, and a pldα1 pldδ double mutant.

2009年8月18日 · We determined the role of Phospholipase Dα1 (PLDα1) and its lipid product phosphatidic acid (PA) in abscisic acid (ABA)-induced production of reactive oxygen species (ROS) in Arabidopsis thaliana guard cells. The pldα1 mutant failed to produce ROS in guard cells in response to ABA.

2007年9月18日 · Transgenic studies have shown that the suppressed expression of rice PLD β 1 results in reduced sensitivity to exogenous ABA during seed germination. Further analysis of the expression of ABA...

2004年6月14日 · Phospholipase D (PLD) and protein phosphatase 2C (PP2C) both play a role in mediating plant responses to abscisic acid (ABA). In this article, we show that PLDα1 and its product, phosphatidic acid (PA), regulate a PP2C, ABI1, which is a negative regulator of ABA responses in Arabidopsis.

2006年4月14日 · PLDα1-produced phosphatidic acid (PA) binds to the ABI1 PP2C to signal ABA-promoted stomatal closure, whereas PLDα1 and PA interact with the Gα subunit of heterotrimeric G protein to mediate ABA inhibition of stomatal opening. The results reveal a bifurcating signaling pathway that regulates plant water loss.

2005年9月5日 · Phospholipase D (PLD) has been implicated in different cellular processes in plant growth, development, and stress responses. Recent results have provided insights into the molecular mechanism by which PLD and its lipid product phosphatidic acid …

We have previously determined that phospholipase D (PLD) is activated by abscisic acid (ABA), and this activation is required for the ABA response of the cereal aleurone cell. In this study, ABA-stimulated PLD activity was reconstituted in vitro in microsomal membranes prepared from aleurone protoplasts.

磷脂酶D（PLD）和蛋白磷酸酶2C（PP2C）都在介导植物对脱落酸（ABA）的反应中发挥作用。 在本文中，我们显示PLDα1及其产物磷脂酸（PA）调节PP2C，ABI1，这是拟南芥中ABA响应的负调节剂。 与野生型植物相比，来自PLD alpha 1和PLD alpha 1反义植物的T-DNA插入突变体的叶片损失的水分更多。 PLD alpha 1-null叶的气孔关闭对ABA不敏感，但由PA促进。 在野生型中，ABA处理可促进磷脂酰胆碱的PA升高，但在PLDα1-null细胞中则不会。 PLD alpha 1衍生 …

2004年6月22日 · Phospholipase D (PLD) and protein phosphatase 2C (PP2C) both play a role in mediating plant responses to abscisic acid (ABA). In this article, we show that PLD alpha 1 and its product, phosphatidic acid (PA), regulate a PP2C, ABI1, which is a negative regulator of ABA responses in Arabidopsis.

2005年6月2日 · Phosphatidic acid (PA) functions as a lipid signaling molecule in plants. Physiological analysis showed that PA triggers early signal transduction events that lead to responses to abscisic acid (ABA) during seed germination. We measured PA production during seed germination and found increased PA levels during early germination.