Effects of Ca^<2+> and Mg^<2+> on Elongation and H^+ Secretion of Vigna radiata Hypocotyl Sections

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概要

• 論文の詳細を見る

• The effects exerted by divalent cations Ca^<2+> and Mg^<2+> on spontaneous, IAA- and H^+-induced elongation were investigated with excised mung bean hypocotyl segments. Low concentrations of calcium (< 1 mM) were sufiicient to inhibit spontaneous and IAA-induced elongation of abraded segments without any lag time whereas effects of magnesium were not so evident. The initial growth rate could be restored, at least partly, with EDTA or acidic solutions. Both calcium and magnesium enhanced H^+ excretion but Mg^<2+> was a more potent activator. Divalent cations also induced simul-taneously an inhibition of growth and a stimulation ofproton release. Such contrasting effects are discussed with respect to the functions of the cuticle.

• 日本植物生理学会の論文

著者

• Goldberg Renee

  Laboratoire De Botanique La311 Ecole Normale Superieure

• Goldberg Renee

  Laboratoire De Biologie Vegetale Cytologie Experimentale Universite Pierre 〓 Marie Curie

• Prat R

  Laboratoire De Botanique La311 Ecole Normale Superieure

• Prat Roger

  Laboratoire De Biologie Vegetale Cytologie Experimentale Universite Pierre 〓 Marie Curie

• Gueissaz Marie-Blanche

  Laboratoire de Botanique LA311, Ecole Normale Superieure

• Gueissaz Marie-blanche

  Laboratoire De Botanique La311 Ecole Normale Superieure

関連論文

• Composition, Properties and Localisation of Pectins in Young and Mature Cells of the Mung Bean Hypocotyl
• Structure and Properties of Acidic Polysaccharides from Mung Bean Hypocotyls
• In Situ and IAA-Induced Cell Elongation is Correlated to the Oleoyl Phosphatidylcholine Content along the Vigna radiata Hypocotyl
• Involvement of Cell Wall Characteristics in Growth Processes along the Mung Bean Hypocotyl
• Effects of Ca^ and Mg^ on Elongation and H^+ Secretion of Vigna radiata Hypocotyl Sections

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