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. 1992 Apr;98(4):1498-501.
doi: 10.1104/pp.98.4.1498.

Evidence of two isomers of phosphatidylinositol in plant tissue

P P Murthy  1 , G Pliska-Matyshak, L M Keranen, P Lam, H H Mueller, N Bhuvarahamurthy
Affiliations

Evidence of two isomers of phosphatidylinositol in plant tissue

P P Murthy et al. Plant Physiol. 1992 Apr.

Abstract

The structure of phosphatidylinositol in barley (Hordeum vulgare) aleurone layers was investigated by chemical degradation. In vivo myo-[2-(3)H]inositol-labeled phosphatidylinositol was first converted to glycerophosphoinositol and, subsequently, after removal of the glycerol moiety, to inositol monophosphate. Here, we present data that show that, in addition to the commonly occurring 1,2-diacylglycero-3-(d-myo-inositol-1-phosphate), barley aleurone cells contain a novel second isomer of phosphatidylinositol that differs in structure of the head group.

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