Role of phosphatidic acid in plant galactolipid synthesis

Dubots, Emmanuelle; Botté, Cyrille; Boudière, Laurence; Yamaryo-Botté, Yoshiki; Jouhet, Juliette; Maréchal, Eric; Block, Maryse A.

doi:10.1016/j.biochi.2011.03.012

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Journal article

Role of phosphatidic acid in plant galactolipid synthesis

Dubots, Emmanuelle Biochemistry Unit, Department of Biology, University of Fribourg, Switzerland - Laboratoire de Physiologie Cellulaire et Végétale, UMR 5168, Université Joseph Fourier Grenoble I, France
Botté, Cyrille Laboratoire de Physiologie Cellulaire et Végétale, UMR 5168, Université Joseph Fourier Grenoble I, France
Boudière, Laurence Laboratoire de Physiologie Cellulaire et Végétale, UMR 5168, Université Joseph Fourier Grenoble I, France
Yamaryo-Botté, Yoshiki Laboratoire de Physiologie Cellulaire et Végétale, UMR 5168, Université Joseph Fourier Grenoble I, France
Jouhet, Juliette Laboratoire de Physiologie Cellulaire et Végétale, UMR 5168, Université Joseph Fourier Grenoble I, France
Maréchal, Eric Laboratoire de Physiologie Cellulaire et Végétale, UMR 5168, Université Joseph Fourier Grenoble I, France
Block, Maryse A. Laboratoire de Physiologie Cellulaire et Végétale, UMR 5168, Université Joseph Fourier Grenoble I, France

12.04.2011

Published in:

Biochimie. - 2012, vol. 94, no. 1, p. 86-93

English Phosphatidic acid (PA) is a precursor metabolite for phosphoglycerolipids and also for galactoglycerolipids, which are essential lipids for formation of plant membranes. PA has in addition a main regulatory role in a number of developmental processes notably in the response of the plant to environmental stresses. We review here the different pools of PA dispatched at different locations in the plant cell and how these pools are modified in different growth conditions, particularly during plastid membrane biogenesis and when the plant is exposed to phosphate deprivation. We analyze how these modifications can affect galactolipid synthesis by tuning the activity of MGD1 enzyme allowing a coupling of phospho- and galactolipid metabolisms. Some mechanisms are considered to explain how physicochemical properties of PA allow this lipid to act as a central internal sensor in plant physiology.

Faculty

Faculté des sciences et de médecine

Department

Département de Biologie

Language