Revisiting Plant Plasma Membrane Lipids in Tobacco: A Focus on Sphingolipids

Jean-Luc Cacas1, Corinne Buré1, Kevin Grosjean1

  • 1Laboratoire de Biogenèse Membranaire, Centre National de la Recherche Scientifique-University of Bordeaux, Unité Mixte de Recherche 5200, F-33883 Villenave d'Ornon cedex, France (J.-L.C., Cl.B., J.G., F.F., L.F., V.G., E.B., S.M.);Chimie Biologie des Membranes et Nanoobjets, Unité Mixte de Recherche 5248, Centre de Génomique Fonctionnelle, Université de Bordeaux, F-33076 Bordeaux cedex, France (Co.B., J.-M.S.);Université de Bourgogne, Unité Mixte de Recherche 1347 Agroécologie, Equipes de Recherche Labellisée 6300 Centre National de la Recherche Scientifique, F-21065 Dijon cedex, France (J.-L.C., K.G., P.G.-P.);Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1347 Agroécologie, Equipes de Recherche Labellisée 6300 Centre National de la Recherche Scientifique, F-21065 Dijon cedex, France (J.L., F.R., F.S.-P.);Université de Lille 1, Unité de Glycobiologie Structurale et Fonctionnelle, F-59655 Villeneuve d'Ascq, France (Y.R., E.M.);Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8576, F-59655 Villeneuve d'Ascq, France (Y.R., E.M.);Laboratoire de Biophysique Moléculaire aux Interfaces, Université de Liège, B-5030 Gembloux, Belgium (Cl.B., M.D., L.L.); andInstitut des Sciences de la Vigne et du Vin, Groupe d'Etude des Substances Végétales à Activité Biologique, University of Bordeaux, Equipe Associée 3675, F-33400 Talence, France (S.C.).

Plant Physiology
|November 1, 2015
PubMed

Related Concept Videos

Membrane Lipids01:32

Membrane Lipids

Lipids are an essential component of all biological membranes. The average lipid content in mammalian membranes is 50%, though it can be as low as 20% in the inner mitochondrial membrane or as high as 80% in the myelin sheath present around the nerve cells.
Phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, and sphingomyelin are the most common phospholipids present in mammalian membranes. At physiological pH, phosphatidylserine is negatively charged, while the other three...
35.5K
Membrane Lipids01:32

Membrane Lipids

16.0K
Lipids as Anchors01:32

Lipids as Anchors

In the plasma membrane, the lipids forming the bilayer can also act as an anchor to tether proteins to the membrane. The three main types of lipid anchors found in eukaryotes are – prenyl groups, fatty acyl groups, and glycosylphosphatidylinositol or GPI groups. Prenyl and fatty acyl groups act as anchors on the cytosolic surface of the membrane, whereas GPI anchors proteins on the extracellular side.
The carboxy-terminal of most of the prenylated proteins, such as Ras proteins, contains...
8.0K
Asymmetric Lipid Bilayer01:35

Asymmetric Lipid Bilayer

Biological membranes show uneven distribution of different types of lipids in the inner and outer layers, resulting in transverse asymmetric membranes. The treatment of the erythrocyte membrane with the enzyme phospholipase confirmed the asymmetric nature of the lipid bilayer. The enzyme hydrolyzes lipids into fatty acids and hydrophilic groups. The phospholipase acts only on the outer layer of the membrane, while the inner layer remains intact. The phospholipase treatment resulted in 80%...
11.0K
Plasma Membrane in Bacteria and Archaea01:27

Plasma Membrane in Bacteria and Archaea

The plasma membrane is an essential cellular structure responsible for maintaining cellular integrity and regulating the selective transport of molecules. While bacteria and archaea share the fundamental function of plasma membranes, their structural and molecular differences reflect adaptations to distinct ecological and physiological challenges.Bacterial Plasma MembranesBacterial plasma membranes are predominantly composed of phospholipids with fatty acid chains ester-linked to a glycerol...
3.0K
Biosynthesis of Lipids01:29

Biosynthesis of Lipids

Microbial membranes exhibit remarkable diversity in lipid composition, reflecting evolutionary adaptations to various environmental conditions. The three domains of life—Bacteria, Archaea, and Eukarya—synthesize membrane lipids through distinct biosynthetic pathways, leading to fundamental structural differences that impact membrane stability, function, and adaptability.Fatty Acid-Based Lipids in Bacteria and EukaryaBacteria and eukaryotes share a common fatty acid biosynthesis...
870