title: Adjustments of lipid pathways in plant adaptation to temperature stress.
abstract: Modulation of membrane lipid composition under varying environmental conditions is an important part of plant stress adaptation. Most notably, proportional changes of lipid composition in response to temperature changes are a major cellular response to requirements of membrane fluidity adjustment. In higher plants, synthesis of glycerolipids is accomplished by 2 major pathways, the prokaryotic and eukaryotic pathway, located in the chloroplast and the endoplasmic reticulum (ER), respectively. Recently, we systematically investigated the re-adjustments of glycerolipid pathways under temperature stress at the metabolite and transcript levels using 3 plant species with distinct lipid profiles. The relative contributions of 2 pathways and lipid channeling from the ER and chloroplast were both observed in plants under temperature stress. Potential factors controlling the lipid flux were identified through transcriptome analysis.
authors.affiliation: a Department of Plant Science ; University of Saskatchewan ; Saskatoon , Saskatchewan , Canada.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Li
authors.affiliation: b National Research Council Canada ; Saskatoon , Saskatchewan , Canada.
authors.forename: Wenyun
authors.initials: W
authors.lastname: Shen
authors.affiliation: c Department of Food and Bioproduct Science ; University of Saskatchewan ; Saskatoon , Saskatchewan , Canada.
authors.forename: Qian
authors.initials: Q
authors.lastname: Zheng
authors.affiliation: a Department of Plant Science ; University of Saskatchewan ; Saskatoon , Saskatchewan , Canada.
authors.forename: D Brian
authors.initials: DB
authors.lastname: Fowler
authors.affiliation: b National Research Council Canada ; Saskatoon , Saskatchewan , Canada.
authors.forename: Jitao
authors.initials: J
authors.lastname: Zou
mesh_terms: D000222:Adaptation, Physiological; D019663:Chenopodiaceae / Q000235:genetics / Q000502:physiology*; D018506:Gene Expression Regulation, Plant; D017343:Genes, Plant; D050356:Lipid Metabolism / Q000235:genetics; D013312:Stress, Physiological; D013696:Temperature
keywords: RNA sequencing; fatty acid metabolism, glycerolipid pathways, metabolic regulation; temperature adaptation