In all Proteaceae species, phospholipid levels strongly decreased during leaf development, whereas those of galactolipids and sulfolipids strongly increased. Photosynthetic rates increased from young to mature leaves.
2006-05-09
Quantification and Fatty Acid Profiles of Sulfolipids in Two Halophytes and a Glycophyte Grown under Different Salt Concentrations Balasubramanian Ramania, Holger Zornb, and Jutta Papenbrocka,* a Institut für Botanik, Universität Hannover, Herrenhäuserstr. 2, D-30419 Hannover, Germany. Fax: +495117623992. A lack of phosphorus (P) in plants can severely constrain growth and development. Barley, one of the earliest domesticated crops, is extensively planted in poor soil around the world.
Transfer of a bacterial glycolipid into Arabidopsis. (A) Simplified scheme for the synthesis of Gal GalDG and Glc GalDG in chloroplasts. In WT Arabidopsis most Gal GalDG is formed from GalDG in the outer envelope by one of the two galactosyltransferases DGD1 or DGD2. In transgenic plants expressing the glucosyltransferase GlcT from Chloroflexus, Glc GalDG is mainly formed in the inner
Author: Lambers, H. et al.; Genre: Journal Article; Published in Print: 2012; Keywords: banksia galactolipids hakea phospholipids photosynthetic phosphorus-use-efficiency (ppue) sulfolipids hakea-prostrata proteaceae phosphate status membrane phospholipids western-australia lipid-composition plasma-membrane
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The acylation of sn-glycerol 3-phosphate is a common reaction in the pathways leading to the biosynthesis of glycerol-derived phospholipids, galactolipids, and sulfolipids.
2015-08-04
Galactolipids (MGDG and DGDG), sulfolipid and phosphatidylglycerol are the main constituents of plastid membranes. Glycerolipid biosynthesis requires first the assembly of glycerol and esterification by fatty acids at the sn-1 and sn-2 positions of the glycerol backbone. Quantification and Fatty Acid Profiles of Sulfolipids in Two Halophytes and a Glycophyte Grown under Different Salt Concentrations Balasubramanian Ramania, Holger Zornb, and Jutta Papenbrocka,* a Institut für Botanik, Universität Hannover, Herrenhäuserstr.
Galactolipids: defined by a galactose sugar attached to a glycerol lipid molecule. They are found in chloroplast membranes and are associated with photosynthetic properties. Sulfolipids: have a sulfur-containing functional group in the sugar moiety attached to a
Learn vocabulary, terms, and more with flashcards, games, and other study tools. 2016-03-30 Proteaceae species in south-western Australia occur on severely phosphorus (P)-impoverished soils. They have very low leaf P concentrations, but relatively fast rates of photosynthesis, thus exhibiting extremely high photosynthetic phosphorus-use-efficiency (PPUE). Although the mechanisms underpinning their high PPUE remain unknown, one possibility is that these species may be able to … Galactolipids (MGDG and DGDG) and sulfolipids (SQDG) are key components of plastidic membranes, and play important roles in plant development and photosynthesis. In this study, the whole families of MGD, DGD and SQD were identified in maize genome, and were designated as ZmMGD1-3, ZmDGD1-5 and ZmSQD1-5 respectively. Galactolipids and sulfolipids are characteristic plant membrane glycerolipids.
2009). Galactolipids (MGDG and DGDG) and sulfolipids (SQDG) are key components of plastidic membranes, and play important roles in plant development and photosynthesis. In this study, the whole families of MGD, DGD and SQD were identified in maize genome, and were designated as ZmMGD1-3, ZmDGD1-5 and ZmSQD1-5 respectively. Based on the phylogenetic analyses, maize and Arabidopsis MGDs, DGDs and SQDs
Fig. 1. Transfer of a bacterial glycolipid into Arabidopsis.
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A. Boehler and M. L. Ernst-Fonberg (1976) Arch. Biochem. Sulfolipids are a class of lipids which possess a sulfur-containing functional group. An abundant sulfolipid is sulfoquinovosyl diacylglycerol, which is composed of a glycoside of sulfoquinovose and diacylglycerol.
Based on the phylogenetic analyses, maize and Arabidopsis MGDs, DGDs …
Galactolipids are a major and phospholipids only a minor component of chloroplast membranes (Bahl et al., 1976; Dörmann, 2007). Increased investment of galactolipids and sulfolipids in chloroplast membranes of fully expanded leaves cannot entirely explain the shift we observed. 2. Galactolipids and Sulfolipids in Plant Cells Galactolipids are in the internal membranes of chloroplasts.
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Plant and animal lipids show not only remarkable similarities but also significant differences. While phospholipids are prevalent in eukaryotic plasma membranes and endomembranes overall, the plant-specific membranes in the chloroplast are composed mostly of nonphosphorus galactolipids and sulfolipids in addition to the phospholipid phosphatidylglycerol.
In WT Arabidopsis most Gal GalDG is formed from GalDG in the outer envelope by one of the two galactosyltransferases DGD1 or DGD2. In transgenic plants expressing the glucosyltransferase GlcT from Chloroflexus, Glc GalDG is mainly formed in the inner 2020-03-25 · Glycolipids can be useful in the recognition of certain chemicals, maintaining membrane stability and forming tissues.