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Literature DB >> 646802

The structure and function of glycoproteins synthesized during slime-polysaccharide production by membranes of the root-cap cells of maize (Zea mays).

Abstract

The synthesis of the maize root slime polysaccharides was investigated by using [1-3H]-fucose as a marker for slime production. Three fractions were separated by centrifugation in a CsCl density gradient. Two of these were glycoproteins and occurred within the membranes of the cells of the root tip; the third was the slime polysaccharides. Radioactive pulse-chase experiments showed that the glycoproteins were precursors of the slime polysaccharides, and the carbohydrate portion of the glycoproteins had a similar composition to that of the free slime. The linkage between the protein and the carbohydrate of one of the glycoproteins was shown to be a xylose-threonine bond. It is postulated that the slime polysaccharides are synthesized and transported on proteins within the membrane system of the root tip.

Entities: Chemical Species

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Year: 1978 PMID： 646802 PMCID： PMC1183937 DOI： 10.1042/bj1700599

Source DB: PubMed Journal: Biochem J ISSN： 0264-6021 Impact factor: 3.857

13 in total

1. The initiation of glycogen biosynthesis in Escherichia coli.

Authors: R Barengo; M Flawia; C R Krisman
Journal: FEBS Lett Date: 1975-05-15 Impact factor: 4.124

2. The covalent linkage of protein to carbohydrate in the extracellular protein-polysaccharide from the red alga Porphyridium cruentum.

Authors: J Heaney-Kieras; L Rodén; D J Chapman
Journal: Biochem J Date: 1977-07-01 Impact factor: 3.857

5. Polyprenyl phosphate sugars synthesized during slime-polysaccharide production by membranes of the root-cap cells of maize (Zea mays).

Authors: J R Green; D H Northcote
Journal: Biochem J Date: 1979-03-15 Impact factor: 3.857

10. Arabinan synthase and xylan synthase activities of Phaseolus vulgaris. Subcellular localization and possible mechanism of action.

Authors: G P Bolwell; D H Northcote
Journal: Biochem J Date: 1983-02-15 Impact factor: 3.857

The structure and function of glycoproteins synthesized during slime-polysaccharide production by membranes of the root-cap cells of maize (Zea mays).

1. The initiation of glycogen biosynthesis in Escherichia coli.

2. The covalent linkage of protein to carbohydrate in the extracellular protein-polysaccharide from the red alga Porphyridium cruentum.

3. Nutrient requirements of suspension cultures of soybean root cells.

4. A precursor of glycogen biosynthesis: alpha-1,4-glucan-protein.

5. A function of the Golgi apparatus in polysaccharide synthesis and transport in the root-cap cells of wheat.

6. The sites of synthesis and transport of extracellular polysaccharides in the root tissues of maize.

7. Biosynthesis of starch. Formation of a glucoproteic acceptor by a potato non-sedimentable preparation.

8. The amounts and rates of export of polysaccharides found within the membrane system of maize root cells.

9. Patterns of polysaccharide biosynthesis in differentiating cells of maize root-tips.

10. The relationship of root-cap slimes to pectins.

1. Characterization of GDP-Fucose: Polysaccharide Fucosyl Transferase in Corn Roots (Zea mays L.).

2. Studies on the structure of a phosphoglycoprotein from the parasitic protozoan Trypanosoma cruzi.

3. Formation of lipid-linked mono- and oligosaccharides from GDP-mannose by castor bean endosperm homogenates.

4. A protein-glucan intermediate during paramylon synthesis.

5. Polyprenyl phosphate sugars synthesized during slime-polysaccharide production by membranes of the root-cap cells of maize (Zea mays).

6. Auxin deprivation induces synchronous Golgi differentiation in suspension-cultured tobacco BY-2 cells.

7. Calcium deficiency and auxin transport in Cucurbita pepo L. seedlings.

8. Cytochemical identification of arabinogalactan protein in the outer epidermal wall of maize coleoptiles.

9. Glucosylation of phosphorylpolyisoprenol and sterol at the plasma membrane of soya-bean (Glycine max) protoplasts.

10. Arabinan synthase and xylan synthase activities of Phaseolus vulgaris. Subcellular localization and possible mechanism of action.