Induction of hydrotropism in clinorotated seedling roots of Alaska pea, Pisum sativum L

J Plant Res. 1996 Sep;109(1095):335-7. doi: 10.1007/BF02344481.


Roots of the agravitropic pea (Pisum sativum L.) mutant ageotropum show positive hydrotopism, whereas roots of Alaska peas are hydrotropically almost non-responsive. When the gravitropic response was nullified by rotation on clinostats, however, roots of Alaska peas showed unequivocal positive hydrotropism in response to a water potential gradient. These results suggest that roots of Alaska peas possess normal ability to respond hydrotropicallly and their weak hydrotropic response results from a counteracting effect of gravitropism.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Gravitation
  • Gravitropism / physiology*
  • Mutation
  • Peas / genetics
  • Peas / growth & development
  • Peas / physiology*
  • Plant Roots / growth & development*
  • Plant Roots / physiology
  • Rotation
  • Tropism / physiology*
  • Water
  • Weightlessness Simulation*


  • Water