Pectin Solubilization and Enzymic Activity of Tomato Fruit Locule Tissue Cell Wall
نویسندگان
چکیده
منابع مشابه
Reduction of tomato polygalacturonase beta subunit expression affects pectin solubilization and degradation during fruit ripening.
The developmental changes that accompany tomato fruit ripening include increased solubilization and depolymerization of pectins due to the action of polygalacturonase (PG). Two PG isoenzymes can be extracted from ripe fruit: PG2, which is a single catalytic PG polypeptide, and PG1, which is composed of PG2 tightly associated with a second noncatalytic protein, the beta subunit. Previous studies...
متن کاملReduction of Tomato Polygalacturonase p Subunit Expression Affects Pectin Solubilization and Degradation during Fruit Ripening
The developmental changes that accompany tomato fruit ripening include increased solubilization and depolymerization of pectins due to the action of polygalacturonase (PG). Two PG isoenrymes can be extracted from ripe fruit: PG2, which is a single catalytic PG polypeptide, and PG1, which is composed of PG2 tightly associated with a second noncatalytic protein, the p subunit. Previous studies ha...
متن کاملRipening of tomato fruit locule gel tissue in response to ethylene
Ethylene production by locule gel tissue excised from immature tomato fruit was inhibited by exposure to 4.5 mmol l C2H4, and 1-aminocyclopropane-1-carboxylic acid (ACC) content was reduced. In contrast, CO2 production, ethylene forming capacity (EFC), red colour development, tissue liquefaction and seed maturation as measured by subsequent germination rate were stimulated by C2H4, and, in imma...
متن کاملTissue Specific Localization of Pectin–Ca2+ Cross-Linkages and Pectin Methyl-Esterification during Fruit Ripening in Tomato (Solanum lycopersicum)
Fruit ripening is one of the developmental processes accompanying seed development. The tomato is a well-known model for studying fruit ripening and development, and the disassembly of primary cell walls and the middle lamella, such as through pectin de-methylesterified by pectin methylesterase (PE) and depolymerization by polygalacturonase (PG), is generally accepted to be one of the major cha...
متن کاملDegradation of Cell Wall Polysaccharides during Tomato Fruit Ripening.
Changes in neutral sugar, uronic acid, and protein content of tomato (Lycopersicon esculentum Mill) cell walls during ripening were characterized. The only components to decline in amount were galactose, arabinose, and galacturonic acid. Isolated cell walls of ripening fruit contained a water-soluble polyuronide, possibly a product of in vivo polygalacturonase action. This polyuronide and the o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: HortScience
سال: 1996
ISSN: 0018-5345,2327-9834
DOI: 10.21273/hortsci.31.4.599d