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. 1976 Sep;58(3):380-6.
doi: 10.1104/pp.58.3.380.

Production of cell wall hydrolyzing enzymes by barley aleurone layers in response to gibberellic Acid

L Taiz  1 , W A Honigman
Affiliations

Production of cell wall hydrolyzing enzymes by barley aleurone layers in response to gibberellic Acid

L Taiz et al. Plant Physiol. 1976 Sep.

Abstract

The cell walls of barley (Hordeum vulgare var. Himalaya) aleurone layers undergo extensive degradation during the tissue's response to gibberellic acid. Previous work had shown that these cell walls consist almost entirely of arabinoxylan. In this study we show that gibberellic acid stimulates endo-beta-1,4-xylanase activity in isolated aleurone layers. In addition, gibberellic acid enhances the activity of two glycosidases: beta-xylopyranosidase and alpha-arabinofuranosidase. No gibberellic acid-stimulated cellulase activity was detected. Germination studies showed a similar pattern of enzyme development in intact seeds.

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References

    1. Biochem J. 1963 Oct;89(1):144-50 - PubMed
    1. Plant Physiol. 1975 Jan;55(1):64-8 - PubMed
    1. Plant Physiol. 1974 Dec;54(6):911-5 - PubMed
    1. Plant Physiol. 1971 Jan;47(1):1-6 - PubMed
    1. Plant Physiol. 1971 Aug;48(2):137-42 - PubMed

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