Characterization of polygalacturonase from tomato (<i>Lycopersicon Esculentum</i> mill) fruits infected by <i>Rhizopus arrhizus</i> Fisher.
نویسندگان
چکیده
منابع مشابه
Characterisation of Partially Purified Cell Wall-degrading Enzymes: Polygalacturonase and Cellulase from Tomato Fruits Degraded by Aspergillus Niger
Aspergillus niger is a soil saprobe and produces a wide array of hydrolytic and oxidative enzymes and cell wall degrading enzymes. An investigation on the various properties of partially purified polygalacturonase and cellulase enzymes extracted from tomato fruits deteriorated by Aspergillus niger was carried out in this study. The results obtained shows that temperature, pH and substrate conce...
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Thirty-five fungal strains which isolated from vegetable wastes, were screened for the use of polygalacturonic acid as the sole carbon source. Twenty-five isolates were positive for polygalacturonase activity in cup-plate assay, as evidenced by clear hydrolysation zones. The most productive strain was determined by measuring clear zones formed around colonies stained with ruthenium red.</em...
متن کاملIsolation and characterization of Erwinia herbicola associated with internal discoloration of tomato fruits (Lycopersicon esculentum Mill) in Saudi Arabia
Tomato fruits grown in greenhouses were collected from Al–Karj region during summer 2008. Seven bacterial isolates that characterized as Gram negative, short rod–shaped, yellow-pigmented bacterium were isolated and recovered from the internal discoloration tissue of there collected fruits. Symptoms of infected fruits were blackening of the vascular vessels of tissue reached to seeds and lack an...
متن کاملReduction of polygalacturonase activity in tomato fruit by antisense RNA.
Polygalacturonase [PG; poly(1,4-alpha-D-galacturonide) glycanhydrolase; EC 3.2.1.15] is expressed in tomato only during the ripening stage of fruit development. PG becomes abundant during ripening and has a major role in cell wall degradation and fruit softening. Tomato plants were transformed to produce antisense RNA from a gene construct containing the cauliflower mosaic virus 35S promoter an...
متن کاملOccurrence of Candida orthopsilosis in Brazilian tomato fruits (Lycopersicum esculentum Mill.)
We aimed to isolate and identify yeasts found in the tomato fruit in order to obtain isolates with biotechnological potential, such as in control of fungal diseases that damage postharvest fruits. We identified Candida orthopsilosis strains LT18 and LT24. This is the first report of this yeast on Lycopersicum esculentum fruits in Brazil.
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ژورنال
عنوان ژورنال: Ife Journal of Science
سال: 2008
ISSN: 0794-4896
DOI: 10.4314/ijs.v9i2.32242