منابع مشابه
Reduced Biosynthesis of Digalactosyldiacylglycerol, a Major Chloroplast Membrane Lipid, Leads to Oxylipin Overproduction and Phloem Cap Lignification in Arabidopsis.
DIGALACTOSYLDIACYLGLYCEROL SYNTHASE1 (DGD1) is a chloroplast outer membrane protein responsible for the biosynthesis of the lipid digalactosyldiacylglycerol (DGDG) from monogalactosyldiacylglycerol (MGDG). The Arabidopsis thaliana dgd1 mutants have a greater than 90% reduction in DGDG content, reduced photosynthesis, and altered chloroplast morphology. However, the most pronounced visible pheno...
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to say that other aspects of order in the polymer, such as the alignment of aromatic rings indicated by Raman spectroscopy (Atalla and Agarwal 1985), are impossible. Randomness has been used to imply that the process appeared to have no direct enzymatic control. Obviously, the polymerization of lignin is not completely random, and only a subset of the possible linkages are found. In fact, prior...
متن کاملPhloem transport in trees.
Phloem is like an enigmatic central banker: we know how important phloem is to plant function, but very little about how phloem functions as part of a whole-plant economy. Phloem transports carbohydrates, produced by photosynthesis and hydrolysis of reserve compounds, to sink tissues for growth, respiration and storage. At photosynthetic tissues, carbohydrates are loaded into phloem (Rennie and...
متن کاملTricin, a flavonoid monomer in monocot lignification.
Tricin was recently discovered in lignin preparations from wheat (Triticum aestivum) straw and subsequently in all monocot samples examined. To provide proof that tricin is involved in lignification and establish the mechanism by which it incorporates into the lignin polymer, the 4'-O-β-coupling products of tricin with the monolignols (p-coumaryl, coniferyl, and sinapyl alcohols) were synthesiz...
متن کاملReduced biosynthesis of digalactosyldiacylglycerol , a major chloroplast membrane lipid , 1 leads to oxylipin overproduction and phloem cap lignification in Arabidopsis 2 3
Reduced biosynthesis of digalactosyldiacylglycerol, a major chloroplast membrane lipid, 1 leads to oxylipin overproduction and phloem cap lignification in Arabidopsis 2 3 Yang-Tsung Lin, Lih-Jen Chen, Cornelia Herrfurth, Ivo Feussner and Hsou-min Li 4 Institute of Molecular Biology, Academia Sinica, Taipei 11529, Taiwan 5 Georg-August-University Goettingen, Albrecht-von-Haller-Institute for Pla...
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ژورنال
عنوان ژورنال: Annals of Botany
سال: 1906
ISSN: 1095-8290,0305-7364
DOI: 10.1093/oxfordjournals.aob.a089104