Fig. 5
Regulation of membrane glycerolipid synthesis in response to salt stress. a Transcriptional regulation of membrane lipid biosynthetic pathways. Arrows in red and black indicate transcriptional up- and non-regulated steps, respectively. For proteins encoded by multiple gene copies, the changes in total transcripts of the isogenes were employed for determining the overall regulation pattern. Compounds are highlighted with different colors: red, significantly higher; black, not significantly changed; gray, not determined; blue, significantly lower upon salt stress. b Heat map showing log2(fold change) values of gene transcripts. Significant difference (at least a twofold change and FDR adjusted p < 0.05) is indicated with an asterisk. BAT betaine lipid synthase, CDS phosphatidate cytidylyltransferase, CCT choline-phosphate cytidylyltransferase, CHK choline kinase, DGD digalactosyldiacylglycerol synthase, DGDG digalactosyl diacylglycerol, ECT CDP-ethanolamine synthase, EPT/CPT ethanolaminephosphotransferase/cholinephosphotransferase, ETK ethanolamine kinase, GALE UDP-galactose 4-epimerase, LPC lysophosphatidylcholine, MIPS myo-inositol-1-phosphate synthase, MGD monogalactosyldiacylglycerol synthase, MGDG monogalactosyl diacylglycerol, PA phosphatidic acid, PC phosphatidylcholine, PE phosphatidylethanolamine, PG phosphatidylglycerol, PGP phosphatidylglycerophosphatase, PGPS phosphatidylglycerophosphate synthase, PI phosphatidylinositol, PIS phosphatidylinositol synthase, UGPase UDP-glucose pyrophosphorylase, SAS S-adenosylmethionine synthase, SQDG sulfoquinovosyl diacylglycerol. See Additional file 8: Data S6 for the detailed RNA-seq data