Phosphatidic Acid in Plant Hormonal Signaling: From Target Proteins to Membrane Conformations

0561221 - ÚEB 2023 RIV CH eng J - Journal Article
Kolesnikov, Y. - Kretynin, S. - Bukhonska, Y. - Pokotylo, I. - Ruelland, E. - Martinec, Jan - Kravets, V.
Phosphatidic Acid in Plant Hormonal Signaling: From Target Proteins to Membrane Conformations.
International Journal of Molecular Sciences. Roč. 23, č. 6 (2022), č. článku 3227. E-ISSN 1422-0067
R&D Projects: GA MŠMT(CZ) EF16_019/0000738
Institutional support: RVO:61389030
Keywords : Autophagy * Biologically active substance * Diacylglycerol kinase * Phosphatidic acid * Phospholipase * Phospholipid * Signal transduc-tion * Targets
OECD category: Biochemical research methods
Impact factor: 5.6, year: 2022
Method of publishing: Open access
https://doi.org/10.3390/ijms23063227

Cells sense a variety of extracellular signals balancing their metabolism and physiology according to changing growth conditions. Plasma membranes are the outermost informational barriers that render cells sensitive to regulatory inputs. Membranes are composed of different types of lipids that play not only structural but also informational roles. Hormones and other regulators are sensed by specific receptors leading to the activation of lipid metabolizing enzymes. These enzymes generate lipid second messengers. Among them, phosphatidic acid (PA) is a well-known intracellular messenger that regulates various cellular processes. This lipid affects the functional properties of cell membranes and binds to specific target proteins leading to either genomic (affecting transcriptome) or non-genomic responses. The subsequent biochemical, cellular and physiological reactions regulate plant growth, development and stress tolerance. In the present review, we focus on primary (genome-independent) signaling events triggered by rapid PA accumulation in plant cells and describe the functional role of PA in mediating response to hormones and hormone-like regulators. The contributions of individual lipid signaling enzymes to the formation of PA by specific stimuli are also discussed. We provide an overview of the current state of knowledge and future perspectives needed to decipher the mode of action of PA in the regulation of cell functions.
Permanent Link: https://hdl.handle.net/11104/0333908