Abscisic Acid Induces Formation of Floating Leaves in the Heterophyllous Aquatic Angiosperm <i>Potamogeton nodosus</i>

  • Lars W. J. Anderson
    Aquatic Weed Control Research, U.S. Department of Agriculture, Post Office Box 25007, Denver, Colorado 80225

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<jats:p> Potamogeton nodosus <jats:italic>tubers produce floating-type instead of submersed-type leaves when exposed to 10</jats:italic> <jats:sup>–5</jats:sup> <jats:italic>molar synthetic abscisic acid. Abscisic acid-induced leaves have stomata on upper leaf surfaces and higher width/length ratios than controls. These effects are wholly or partially overcome by simultaneous exposure to abscisic acid combined with gibberellic acid, kinetin, or benzyladenine.</jats:italic> </jats:p>

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  • Science

    Science 201 (4361), 1135-1138, 1978-09-22

    American Association for the Advancement of Science (AAAS)

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