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Страница 1 от 24 резултата
Spatiotemporal Changes in Xylan-1/Xyloglucan and Xyloglucan Xyloglucosyl Transferase (XTH-Xet5) as a Step-In of Ultrastructural Cell Wall Remodelling in Potato⁻Potato Virus Y (PVYNTN) Hypersensitive and Susceptible Reaction.
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One type of monitoring system in a plant cell is the cell wall, which intensively changes its structure during interaction with pathogen-stress factors. The wall plays a role as a dynamic and controlled structure, although it is not fully understood how relevant these modifications are to the
Expression of xylanase with high specific activity from Streptomyces olivaceoviridis A1 in transgenic potato plants (Solanum tuberosum L.).
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The gene, xynB, from Streptomyces olivaceoviridis A1 encoding xylanase, XYNB, with a high specific activity for xylan, was transformed into potato (Solanum tuberosum L.) by Agrobacterium tumefaciens. The integration of xynB into genomic DNA was confirmed by PCR and reverse transcriptase-PCR. The
Oxalic Acid Production in Clarireedia jacksonii Is Dictated by pH, Host Tissue, and Xylan
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Dollar spot is caused by the fungus Clarireedia jacksonii and is the most common disease of golf course turfgrass in temperate climates. Oxalic acid (OA) is an important pathogenicity factor in other fungal plant pathogens, such as the dicot pathogen Sclerotinia sclerotiorum, but its
Suberin Regulates the Production of Cellulolytic Enzymes in Streptomyces scabiei, the Causal Agent of Potato Common Scab.
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Suberin, a major constituent of the potato periderm, is known to promote the production of thaxtomins, the key virulence factors of the common scab-causing agent Streptomyces scabiei. In the present study, we speculated that suberin affected the production of glycosyl hydrolases, such as cellulases,
Effect of carbohydrates on the production of thaxtomin A by Streptomyces acidiscabies.
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Several Streptomyces species cause plant diseases, including S. scabies, S. acidiscabies and S. turgidiscabies, which produce common scab of potato and similar diseases of root crops. These species produce thaxtomins, dipeptide phytotoxins that are responsible for disease symptoms. Thaxtomins are
A novel alpha-amylase from the cyanobacterium Nostoc sp. PCC 7119.
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Little information is yet available on the alpha-amylases of cyanobacteria. Here, the presence of an alpha-amylase in the cyanobacterium Nostoc sp. PCC 7119 is first demonstrated. A gene (amy1) encoding a cytoplasmic alpha-amylase (Amy1) protein has been identified, cloned, and overexpressed in
The source of fermentable carbohydrates influences the in vitro protein synthesis by colonic bacteria isolated from pigs.
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Two in vitro experiments were carried out to quantify the incorporation of nitrogen (N) by pig colonic bacteria during the fermentation of dietary fibre, including non-starch polysaccharides and resistant starch. In the first experiment, five purified carbohydrates were used: starch (S), cellulose
Low catalyst loadings for the production of carboxylic acids from polysaccharides and hydrogen peroxide.
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The oxidation of starch, xylans, potato flesh and wheat flour by H(2)O(2), in the presence of MSO(4) (M=Cu, Fe) as catalyst, led to depolymerization, and formation of solutions containing polyhydroxycarboxylic acids. Some of these oxidized compounds facilitate the process, leading to efficient
[GROWTH OF MICROMYCETES FROM DIFFERENT ECOLOGICAL NICHES ON AGAR NUTRIENT MEDIA].
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Radial growth rate of (K(r)) 153 strains 6 species of micromycetes from different ecological niches was studied on 7 agar media: three standard (malt extract agar, potato-dextrose agar, Czapek's agar), and on agar media with plant polymers (carboxymethylcellulose, xylan, soluble starch and apple
Investigation of the use of Maillard reaction inhibitors for the production of patatin-carbohydrate conjugates.
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Selected Maillard reaction inhibitors, including aminoguanidine, cysteine, pyridoxamine, and sodium bisulfite, were evaluated for their effect on the production of carbohydrate conjugated proteins with less cross-linking/browning. Patatin (PTT), a major potato protein, was glycated with galactose,
Mariannaea samuelsii Isolated from a Bark Beetle-Infested Elm Tree in Korea.
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During an investigation of fungi from an elm tree infested with bark beetles in Korea, one isolate, DUCC401, was isolated from elm wood. Based on morphological characteristics and phylogenetic analysis of the internal transcribed spacer and 28S rDNA (large subunit) sequences, the isolate, DUCC401,
The multi-ligand binding first family 35 Carbohydrate Binding Module (CBM35) of Clostridium thermocellum targets rhamnogalacturonan I.
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Carbohydrate Binding Modules (CBMs) targeting cellulose, xylan and mannan have been reported, however, a CBM targeting rhamnogalacturonan I (RG I) has never been identified. We had studied earlier a rhamnogalacturonan lyase (CtRGL) from Clostridium thermocellum that was associated with a family 35
[Isolation of protoplasts from vegetable tissues using extracellular lytic enzymes from fusarium oxysporum f.sp. melonis].
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Fusarium oxysporum f.sp. melonis, a pathogen of melon (Cucumis melo L.), was grown in shaken cultures at 26 degrees C in a mineral salts medium containing glucose, xylan and apple pectin as carbon sources. The extracellular enzymic complex obtained from these cultures showed lytic activity on plant
Comprehensive signal assignment of 13C-labeled lignocellulose using multidimensional solution NMR and 13C chemical shift comparison with solid-state NMR.
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A multidimensional solution NMR method has been developed using various pulse programs including HCCH-COSY and (13)C-HSQC-NOESY for the structural characterization of commercially available (13)C labeled lignocellulose from potatoes (Solanum tuberosum L.), chicory (Cichorium intybus), and corn (Zea
Non-invasive diagnostics of Liberibacter disease on tomatoes using a hand-held Raman spectrometer.
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Hand-held Raman spectroscopy can be used for confirmatory, non-invasive and non-destructive detection and identification of two haplotypes of Liberibacter disease on tomatoes. Using this spectroscopic approach, structural changes in carotenoids, xylan, cellulose and pectin that are associ-ated with
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