The rice diacylglycerol kinase family: functional analysis using transient RNA interference.

The rice diacylglycerol kinase family: functional analysis using transient RNA interference.
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水稻二酰基甘油激酶家族:使用瞬态RNA干扰的功能分析。

DOI:
10.3389/fpls.2012.00060
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发表时间:
2012
影响因子:
5.6
通讯作者:
Zhang W
Zhang W
中科院分区:
生物学2区
文献类型:
--
作者:
Ge H;Chen C;Jing W;Zhang Q;Wang H;Wang R;Zhang W

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二酰基甘油激酶(DGK)是磷酸化二酰基甘油(DAG)形成磷脂酸(PA)的关键酶。磷脂酶D (PLD)及其偶联磷脂酶C/DGK途径产生PA是动植物细胞中一个重要的信号转导过程。在这项研究中,我们报告了一个基因家族(OsDGKs)编码的8个假定的水稻DGKs的基因组分析,这些基因家族分为三个簇。为了进一步研究OsDGKs的功能,我们建立了一种双链RNA (dsRNA)诱导的RNA沉默方法。在水稻原生质体中引入与OsDGK独特或保守区域相对应的体外合成的dsRNAs,可以消除或减少单个或多个OsDGK基因的表达。抑制OsDGKs的表达导致防御基因OsNPR1和盐反应基因OsCIPK15转录本的明显缺失。我们的初步结果表明,osdgk参与了应激反应的信号传导。
Diacylglycerol kinase (DGK) is a pivotal enzyme that phosphorylates diacylglycerol (DAG) to form phosphatidic acid (PA). The production of PA from phospholipase D (PLD) and the coupled phospholipase C/DGK route is an important signaling process in animal and plant cells. In this study, we report a genomic analysis of eight putative rice DGKs encoded by a gene family (OsDGKs) grouped into three clusters. To further investigate the functions of the OsDGKs, a double-stranded RNA (dsRNA)-induced RNA silencing method was established. Introduction of in vitro-synthesized dsRNAs corresponding to a unique or conserved region of OsDGKs into rice protoplasts abolished or diminished the expression of individual or multiple OsDGK genes. Suppressing the expression of OsDGKs resulted in a distinct depletion of the transcripts of the defense gene OsNPR1 and the salt-responsive gene OsCIPK15. Our primary results suggest that OsDGKs are involved in the signaling of stress responses.
DOI: 10.1194/jlr.r800098-jlr200
发表时间: 2009-04-01
影响因子: 6.5
作者:
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通讯作者: Testerink, Christa
DOI: 10.1016/0167-4889(91)90140-s
发表时间: 1991-06-07
期刊: BIOCHIMICA ET BIOPHYSICA ACTA
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期刊: BIOCHIMICA ET BIOPHYSICA ACTA
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