منابع مشابه
Pectic Enzymes
Indoleacetic acid (IAA) and/or inhibitors of DNA, RNA or protein synthesis were added to the apex of decapitated seedlings of Pisum sativum L. var. Alaska. At various times up to 4 days, enzymic protein was extraoted from a segment of epicotyl immediately below the apex and assayed for its ability to hydrolyse polysaccharides or their derivatives. With the exception of am;ylase, the total amoun...
متن کاملRelationship of Pectic Enzymes to Abscission
A comprehensive review of work pertinent to changes in the separation zone prior to abscission is presented. Since these changes are largely pectic in nature the involvement of pectic enzymes is suggested. The results obtained for the role of pectin methylesterase ( PME) in abscission arc as follows: ( 1 ) A localization of PME activity in the abscission zone of tobacco pedicels was established...
متن کاملProduction of pectic enzymes in yeasts.
When grown in the appropriate medium, several yeast species produce pectinases able to degrade pectic substances. It is mainly exocellular endopolygalacturonases that break pectins or pectate down by hydrolysis of alpha-1,4-glycosidic linkages in a random way. Biochemical characterisation of these enzymes has shown that they have an optimal pH in the acidic region and an optimal temperature bet...
متن کاملStudies on carbohydrate-metabolizing enzymes. 3. Yeast branching enzyme.
enzymes on oX-D-glucosyl phosphate also yields a branched polysaccharide, although Q-enzyme alone has no action on the glucoside. In the animal kingdom a related enzyme system may be partly responsible for glycogen synthesis. Muscle phosphorylase synthesizes amylose-type chains from OC-D-glucosyl phosphate and the concurrent action of this enzyme and an enzyme preparation (branching factor or s...
متن کاملThe pectic enzymes of the mould Byssochlamys fulva.
McCollum, E. V., Simmonds, N. & Pitz, W. (1917). J. biol. Chem. 29, 521. Macpherson, H. T. (1946). Biochem. J. 40, 470. Neuberger, A. & Sanger, F. (1942). Biochem. J. 36, 662. Osborne, T. B. & Campbell, G. F. (1895). Rept. Conn. agric. Exp. Sta. Osborne, T. B. & Campbell, G. F. (1896). J. Amer. chem. Soc. 18, 575. Rees, M. W. (1946). Biochem. J. 40, 632. Rose, M. S. & Cooper, L. F. (1917). J. b...
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ژورنال
عنوان ژورنال: Journal of the agricultural chemical society of Japan
سال: 1954
ISSN: 0002-1407,1883-6844
DOI: 10.1271/nogeikagaku1924.28.703