Evidence of Two Isomers of Phosphatidylinositol in Plant Tissue | Zendy

Pushpalatha P. N. Murthy | Zendy; Gay PliskaMatyshak | Zendy; Lisa M. Keranen | Zendy; Philippe Lam | Zendy; Hans H. Mueller | Zendy; Narasimhan Bhuvarahamurthy | Zendy

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Evidence of Two Isomers of Phosphatidylinositol in Plant Tissue

Author(s) -

Pushpalatha P. N. Murthy,

Gay PliskaMatyshak,

Lisa M. Keranen,

Philippe Lam,

Hans H. Mueller,

Narasimhan Bhuvarahamurthy

Publication year - 1992

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.98.4.1498

Subject(s) - phosphatidylinositol , chemistry , biology , botany , stereochemistry , computational biology , biochemistry , signal transduction

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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