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polygalacturonase/atrophie
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Clarification of Tomato Juice with Polygalacturonase Obtained from Tomato Fruits Infected by Aspergillus niger.
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Two varieties of tomato fruits commonly available in Nigerian markets are the Roma VF and Ibadan local varieties of tomato fruits. The Roma VF fruits are oval in shape. It is a common type of cultivar in the Northern region of Nigeria and it is not susceptible to cracking. The Ibadan local variety
Polygalacturonase gene expression in kiwifruit: relationship to fruit softening and ethylene production.
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In kiwifruit, much of the softening process occurs prior to the respiratory climacteric and production of ethylene. This fruit therefore represents an excellent model system for dissecting the process of softening in the absence of endogenous ethylene production. We have characterized the expression
[Cloning of polygalacturonase inhibitor protein genes from Solanum brevidens Fill].
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New data were obtained for the Solanum brevidens Fill. nucleotide sequences coding for polygalacturonase inhibitor proteins (PGIPs), which are involved in plant defense against phytopathogenic fungi. Highly degenerate primers directed to the conserved regions of the known PGIP genes of tomato, kiwi,
Temporal and spatial expression of a polygalacturonase during leaf and flower abscission in oilseed rape and Arabidopsis.
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During leaf abscission in oilseed rape (Brassica napus), cell wall degradation is brought about by the action of several hydrolytic enzymes. One of these is thought to be polygalacturonase (PG). Degenerate primers were used to isolate a PG cDNA fragment by reverse transcriptase-polymerase chain
Cloning and characterization of a gene rpg1 encoding polygalacturonase of Rhizopus oryzae.
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The polygalacturonase (PG)-encoding gene (rpg1) of Rhizopus oryzae, the causal pathogen of rhizopus rot of mulberry, was cloned and sequenced. PGs were partially purified from incubation mixture of 2% pectin medium and their N-terminal amino acid sequences were determined by a gas-phase protein
Characterization and evolutionary analysis of a large polygalacturonase gene family in the oomycete plant pathogen Phytophthora cinnamomi.
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Polygalacturonases (PGs) are secreted by fungal pathogens during saprophytic and parasitic growth, and their degradation of pectin in the plant cell wall is believed to play a major role in tissue invasion and maceration. In this study, PG activity was demonstrated in culture filtrates of the
Interaction of Sclerotinia sclerotiorum with Brassica napus: cloning and characterization of endo- and exo-polygalacturonases expressed during saprophytic and parasitic modes.
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Five major and several minor PG isoenzymes were identified in a Sclerotinia sclerotiorum isolate from Brassica napus by isoelectric focusing and pectin gel overlays. Using a combination of degenerate PCR and expressed sequence tags (ESTs) four endo-polygalacturonase (PG) genes, designated as sspg1d,
BcMF9, a novel polygalacturonase gene, is required for both Brassica campestris intine and exine formation.
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OBJECTIVE
The polygalacturonase (PG) gene family has been found to be enriched in pollen of several species; however, little is currently known about the function of the PG gene in pollen development. To investigate the exact role that the PG gene has played in pollen development and about this
1-Methylcyclopropene containing-papers suppress the disassembly of cell wall polysaccharides in Anxi persimmon fruit during storage.
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Anxi persimmon is a popular fruit because of its appealing flavor and rich nutrients such as polysaccharides. However, the harvested persimmon fruit softens and deteriorates quickly. This study explored the influences of the treatment of papers containing 1-methylcyclopropene (1-MCP) on the contents
The stiffening of the cell walls observed during physiological softening of pears.
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CONCLUSIONS
The Young's modulus of the primary cell walls of pears decreases linearly during the pre-harvest on-tree maturation and increases during postharvest storage, and does not correlate with firmness of fruit. The determination of mechanical properties of cell walls is indispensable for
Simultaneous transgenic suppression of LePG and LeExp1 influences fruit texture and juice viscosity in a fresh market tomato variety.
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Tomatoes are grown for fresh consumption or for processing of the fruit. Some ripening-associated processes of the fruit can either contribute to or degrade attributes associated with both fresh and processing quality. For example, cell wall disassembly is associated with loss of fresh fruit
Cloning, targeted disruption and heterologous expression of the Kluyveromyces marxianus endopolygalacturonase gene (EPG1).
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The yeast Kluyveromyces marxianus strain BKM Y-719 produces an efficient pectin-degrading endopolygalacturonase (EPG) that cleaves the internal alpha-1,4-D-glycosidic linkages to yield oligomers of varying sizes. The EPG1 gene encoding this industrially important EPG was cloned by using the
1-MCP suppresses ethylene biosynthesis and delays softening of 'Hami' melon during storage at ambient temperature.
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BACKGROUND
'Hami' melon is susceptible to softening during postharvest storage at ambient temperature, which enhances postharvest deterioration and limits transportation and storage. To look for a method of softening control, the effect of 1-methylcyclopropene (1-MCP) on regulating postharvest
Elucidating the Mechanisms of the Tomato ovate Mutation in Regulating Fruit Quality Using Proteomics Analysis.
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The ovate mutation has frequently been used to study changes in fruit shape but not fruit quality. A deterioration in fruit quality associated with the ovate mutation was discovered in this study. To elucidate how ovate influences the quality of fruit, we performed a proteomics analysis of the
Changes in Metabolisms of Antioxidant and Cell Wall in Three Pummelo Cultivars during Postharvest Storage.
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The juice sacs of pummelo fruit is susceptible to softening during storage at 25 °C, which causes quality deterioration and flavor loss during postharvest pummelo storage. This study investigated the changes in metabolisms of antioxidant and cell wall in juice sacs of three pummelo
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