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glucosamine/solanum tuberosum
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Pagina 1 a partire dal 34 risultati
The purification and properties of the lectin from potato tubers, a hydroxyproline-containing glycoprotein.
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1. Potato lectin has been purified and shown to be a glycoprotein containing about 50% of carbohydrate. Most of the sugar residues (92%) are arabinose; small amounts of galactose, glucose and glucosamine are also present. 2. The most abundant amino acid is hydroxyproline (16% of the residues), 11.5%
Cell wall anionic polymers of Streptomyces sp. MB-8, the causative agent of potato scab.
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The cell wall of Streptomyces sp. MB-8 contains a major teichoic acid, viz., 1,3-poly(glycerol phosphate) substituted with N-acetyl-alpha-D-glucosamine (the degree of substitution is 60%), a minor teichoic acid, viz., non-substituted poly(glycerol phosphate), and a family of Kdn
Acid phosphatase of potato tubers (Solanum tuberosum L). Purification, properties, sugar and amino acid composition.
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1. Acid phosphatase (AcPase) from potato tubers was purified by tannic acid fractionation, DEAE-cellulose chromatography, filtration on Bio-Gel P-150 and affinity chromatography on Con A-Sepharose. The enzyme was purified 260-fold and was electrophoretically homogeneous; its mol. mass is about 69
Purification and characterization of an abscisic acid-inducible anionic peroxidase associated with suberization in potato (Solanum tuberosum).
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An anionic peroxidase (EC 1.11.1.7), thought to be involved in suberization, was purified 110-fold from wound-healing slices of Solanum tuberosum by a combination of ammonium sulfate fractionation, Sephadex G-100 gel filtration, isoelectric focusing, and phenyl-Sepharose CL-4B chromatography in 24%
Fluorescence spectral studies on the specific interaction between sulfated glycosaminoglycans and potato lectin.
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On excitation at 280 nm, Solanum tuberosum agglutinin (STA) produced a fluorescence emission spectrum with a maximum at 347 nm, which is typical of tryptophanyl residues. The fluorescence emission maximum was shifted toward shorter wavelength and quenched by the addition of specific sugars. The
Utility of pentose colorimetric assay for the purification of potato lectin, an arabinose-rich glycoprotein.
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Potato lectin (Solanum tuberosum agglutinin, STA) is an unusual glycoprotein containing approximately 50% carbohydrates by weight. Of the total carbohydrates, 92% is contributed by L: -arabinose, which are O-linked to hydroxyproline residues. The ferric chloride-orcinol assay (Bial's test), which is
Hydroxyproline-rich bacterial agglutinin from potato : extraction, purification, and characterization.
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A protein, extracted from Katahdin potato (Solanum tuberosum L. cv ;Katahdin') tubers and purified by ion exchange chromatography and gel filtration, agglutinates avirulent strains of the bacterial wilt pathogen, Pseudomonas solanacearum, but only weakly agglutinates virulent strains. The agglutinin
The chemical composition of the cyst wall of the potato cyst-nematode, Heterodera rostochiensis.
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1. Cyst walls of the potato cyst-nematode (Heterodera rostochiensis Woll.) were isolated by sieving a suspension of crushed cysts. About 12mg. of dried cyst walls was obtained from 1000 cysts. 2. The cyst walls contained mainly protein (72%, calculated from nitrogen content). On acid hydrolysis
Chitosan induces resistance to tuber rot in stored potato caused by Alternaria tenuissima.
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Alternaria tenuissima infects stored potatoes, and causes tuber rot, resulting in significant economic losses. As a naturally-occurring polysaccharide (poly-β-(1 → 4) N-acetyl-D-glucosamine), chitosan has been reported to be an eco-friendly alternative to synthetic fungicides for the control of
The chemical composition of the egg shells of the potato cyst-nematode, Heterodera rostochiensis Woll.
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1. Eggs of the potato cyst-nematode (Heterodera rostochiensis Woll.) were isolated by sieving a suspension of crushed cysts. Eggs were broken open by ultrasonic vibration and the egg shells separated from the released larvae by centrifuging in a potassium tartrate density gradient. About 1 mg. of
Cytokeratin peptide SFGSGFGGGY mimics N-acetyl-beta-D-glucosamine in reaction with antibodies and lectins, and induces in vivo anti-carbohydrate antibody response.
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Recently, we found that human anti-GlcNAc mAbs reacted with keratin from human skin and recognized specific peptide epitopes of human cytokeratin 14. Our data demonstrate that anti-keratin Ab responses in mice might be driven by Ags bearing terminal O-linked GlcNAc residues. To determine if mouse
Evaluation of Biomass and Chitin Production of Morchella Mushrooms Grown on Starch-Based Substrates.
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Morchella sp. is one of the most expensive mushrooms with a high nutritional profile. In this study, the polysaccharide content of Morchella species was investigated. Specifically, mycelium growth rate, biomass production, sclerotia formation, and glucosamine and total polysaccharides
Precision Synthesis of Functional Polysaccharide Materials by Phosphorylase-Catalyzed Enzymatic Reactions.
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In this review article, the precise synthesis of functional polysaccharide materials using phosphorylase-catalyzed enzymatic reactions is presented. This particular enzymatic approach has been identified as a powerful tool in preparing well-defined polysaccharide materials. Phosphorylase is an
[Description of bacillus-shaped spot sweetflag virus].
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The spot sweetflag virus (SSV) as to its morphology and structural components in comparison with phytorhabdovirus of curly potato dwarf virus (CPDV) and rhabdoviruses of vesicular stomatitis virus (VSV), pathogenic for people and animals, corresponds to the definition of rhabdovirus and belongs to
Inhibition of Fusarium graminearum growth and mycotoxin production by phenolic extract from Spirulina sp.
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Fusarium graminearum is a fungal species complex pathogenic occurring worldwide, mainly associated with cereal crops. The most important Fusarium mycotoxins are fumonisins, zearalenone and trichothecenes. The availability of efficient control measures that are less harmful to both the environment
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