Galactosidase of plant fibers with gelatinous cell wall: Identification and localization

Galactosidase of plant fibers with gelatinous cell wall: Identification and localization Using a comprehensive approach, we have identified a tissue-specific β-galactosidase from flax (Linum usitatissimum L.) phloem fibers forming a gelatinous cell wall. It was found that when fibers started to develop gelatinous cell wall, β-galactosidase gene expression was enhanced.. Using the antibodies against β-galactosidase, we showed that the enzyme was located in flax phloem fibers where it was detected together with tissue-specific galactan in secreted Golgi vesicles and in gelatinous secondary cell wall. Similar β-galactosidase present in gelatinous cell wall of fibers was found in plants belonging to various taxa and produced by different meristems; these data presume the identical mechanisms of gelatinous cell wall formation and an important role of β-galactosidase. The role of this enzyme in developing the supramolecular structure of gelatinous cell wall is discussed. Russian Journal of Plant Physiology Springer Journals

Galactosidase of plant fibers with gelatinous cell wall: Identification and localization

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SP MAIK Nauka/Interperiodica
Copyright © 2012 by Pleiades Publishing, Ltd.
Life Sciences; Plant Sciences; Plant Physiology
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