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Article

Arabidopsis type-III phosphatidylinositol 4-kinases β1 and β2 are upstream of the phospholipase C pathway triggered by cold exposure.

Plant & cell physiology - 1 Mar 2012

Delage Elise, Ruelland Eric, Guillas Isabelle, Zachowski Alain, Puyaubert Juliette

Abstract excerpt

Phosphatidylinositol-4-phosphate (PtdIns4P) is the most abundant phosphoinositide in plants and the precursor of phosphatidylinositol-4,5-bisphosphate [PtdIns(4,5)P(2)]. This lipid is the substrate of phosphoinositide-dependent phospholipase C (PI-PLC) that produces diacylglycerol (DAG) which can be phosphorylated to phosphatidic acid (PtdOH). In plants, it has been suggested that PtdIns4P may also be a direct...

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PMID: 22318862
DOI: 10.1093/pcp/pcs011

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