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Degradation of Xyloglucan by Wall-Bound Enzymes from Soybean Tissue II: Degradation of the Fragment Heptasaccharide from Xyloglucan and the Characteristic Action Pattern of the α-D-Xylosidase in the Enzyme System

Degradation of Xyloglucan by Wall-Bound Enzymes from Soybean Tissue II: Degradation of the... Abstract Hydrolysis of the fragment heptasaccharide (glucose : xylose=4 : 3) from xyloglucan with an enzyme preparation from soybean cell wall produced a penta- and a trisaccharide. The results of fragmentation analysis of these oligosaccharides with Aspergillus oryzaeβ-D-glucosidase indicate the following structures for the penta- and trisaccharide. Xyl Xyl   Xyl  a↓16 a↓16   a↓16  Glc→1 4βGlc→1 4βGlc Glc→1 4βGlc The detection of these intermediate products suggested that degradation of the heptasaccharide took place by sequential splitting of the α-D-xylosidic and β-D-glucosidic linkages. A characteristic action pattern of the α-D-xylosidase in the enzyme preparation was found. This content is only available as a PDF. © 1983 The Japanese Society of Plant Physiologists http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant and Cell Physiology Oxford University Press

Degradation of Xyloglucan by Wall-Bound Enzymes from Soybean Tissue II: Degradation of the Fragment Heptasaccharide from Xyloglucan and the Characteristic Action Pattern of the α-D-Xylosidase in the Enzyme System

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Publisher
Oxford University Press
Copyright
© 1983 The Japanese Society of Plant Physiologists
ISSN
0032-0781
eISSN
1471-9053
DOI
10.1093/pcp/24.2.155
Publisher site
See Article on Publisher Site

Abstract

Abstract Hydrolysis of the fragment heptasaccharide (glucose : xylose=4 : 3) from xyloglucan with an enzyme preparation from soybean cell wall produced a penta- and a trisaccharide. The results of fragmentation analysis of these oligosaccharides with Aspergillus oryzaeβ-D-glucosidase indicate the following structures for the penta- and trisaccharide. Xyl Xyl   Xyl  a↓16 a↓16   a↓16  Glc→1 4βGlc→1 4βGlc Glc→1 4βGlc The detection of these intermediate products suggested that degradation of the heptasaccharide took place by sequential splitting of the α-D-xylosidic and β-D-glucosidic linkages. A characteristic action pattern of the α-D-xylosidase in the enzyme preparation was found. This content is only available as a PDF. © 1983 The Japanese Society of Plant Physiologists

Journal

Plant and Cell Physiology – Oxford University Press

Published: Jan 1, 1983

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