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Changes in the Growth Pattern ofEichhornia crassipes(Mart.) Solms. Leaves Caused by Growth Regulators

Authors
Journal
Journal of Plant Physiology
0176-1617
Publisher
Elsevier
Publication Date
Volume
123
Issue
2
Identifiers
DOI: 10.1016/s0176-1617(86)80140-7
Keywords
  • Eichhomia Crassipes
  • Water-Hyacinth
  • Growth Regulators
  • Leafmorphology

Abstract

Summary Changes in leaf morphology of water-hyacinth ( Eichhornia crassipes) caused by the environment could occur through changes in the levels of endogenous gibberellins and cytokinins. Gibberellic acid enhances petiole elongation. Kinetin although ineffective, when in the presence of gibberellic acid stimulates leaf elongation even higher than gibberellic acid treatment alone. Significant increases of gibberellin and cytokinin-like activities (as detected by inhibition and stimulation of amaranthin synthesis respectively) were detected in root extracts of long-leaf plants relative to short-leaf plants.

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