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Glycosyl‐linkage composition of tomato fruit cell wall hemicellulosic fractions during ripening

Glycosyl‐linkage composition of tomato fruit cell wall hemicellulosic fractions during ripening Hemicelluloses were extracted from isolated tomato (Lycopersicon esculentum Mill. cv. Rutgers) pericarp cell wall material at 3 different stages of ripeness with 4 M and 8 M KOH. Little change in molecular weight or composition of 4 M KOH‐extracted material was observed during ripening. However, the composition of 8 M KOH‐extracted material changed, and a relative increase in polymers of < 40 kDa was observed during ripening. Changes in glycosyl linkage composition of the 8 M KOH hemicellulosic material were detected, including increases in 4‐linked mannosyl, 4,6‐linked mannosyl, and 4‐linked glucosyl, and decreases in 5‐linked arabinosyl residues in polymers of < 40 kDa, and decreases in terminal glocosyl residues in polymers of > 40 kDa. These data may indicate that de novo hemicellulose synthesis occurs throughout tomato fruit ripening, even at the red ripe stage. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physiologia Plantarum Wiley

Glycosyl‐linkage composition of tomato fruit cell wall hemicellulosic fractions during ripening

Physiologia Plantarum , Volume 74 (2) – Jan 1, 1988

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References (22)

Publisher
Wiley
Copyright
Copyright © 1988 Wiley Subscription Services
ISSN
0031-9317
eISSN
1399-3054
DOI
10.1111/j.1399-3054.1988.tb00644.x
Publisher site
See Article on Publisher Site

Abstract

Hemicelluloses were extracted from isolated tomato (Lycopersicon esculentum Mill. cv. Rutgers) pericarp cell wall material at 3 different stages of ripeness with 4 M and 8 M KOH. Little change in molecular weight or composition of 4 M KOH‐extracted material was observed during ripening. However, the composition of 8 M KOH‐extracted material changed, and a relative increase in polymers of < 40 kDa was observed during ripening. Changes in glycosyl linkage composition of the 8 M KOH hemicellulosic material were detected, including increases in 4‐linked mannosyl, 4,6‐linked mannosyl, and 4‐linked glucosyl, and decreases in 5‐linked arabinosyl residues in polymers of < 40 kDa, and decreases in terminal glocosyl residues in polymers of > 40 kDa. These data may indicate that de novo hemicellulose synthesis occurs throughout tomato fruit ripening, even at the red ripe stage.

Journal

Physiologia PlantarumWiley

Published: Jan 1, 1988

Keywords: ; ; ; ;

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