Hydrotropism: the current state of our knowledge

J Plant Res. 1997 Jun;110(1098):163-9. doi: 10.1007/BF02509304.

Abstract

The response of roots to a moisture gradient has been reexamined, and positive hydrotropism has been demonstrated in recent years. Agravitropic roots of a pea mutant have contributed to the studies on hydrotropism. The kinetics of hydrotropic curvature, interactions between hydrotropism and gravitropism, moisture gradients required for the induction of hydrotropism, the sensing site for moisture gradients, characteristics of hydrotropic signal and differential growth, and calcium involvement in signal transduction have been subjects of these studies. This review summarizes the current state of our knowledge on hydrotropism in roots.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Calcium / metabolism
  • Calcium / physiology
  • Chelating Agents / pharmacology
  • Egtazic Acid / pharmacology
  • Glycosyltransferases / metabolism
  • Glycosyltransferases / physiology
  • Gravitropism / drug effects
  • Gravitropism / physiology*
  • Peas / genetics
  • Peas / growth & development*
  • Plant Physiological Phenomena*
  • Plant Root Cap / drug effects
  • Plant Root Cap / enzymology
  • Plant Root Cap / growth & development
  • Plant Root Cap / physiology
  • Plant Roots / drug effects
  • Plant Roots / enzymology
  • Plant Roots / growth & development*
  • Plant Roots / physiology
  • Tropism / drug effects
  • Tropism / physiology*
  • Water / metabolism*
  • Water / physiology
  • Zea mays

Substances

  • Chelating Agents
  • Water
  • Egtazic Acid
  • Glycosyltransferases
  • xyloglucan endotransglycosylase
  • Calcium