Auxin and Root Gravitropism: The State of Our Knowledge

  • T. J. Mulkey
  • M. A. Vaughan
Part of the Proceedings in Life Sciences book series (LIFE SCIENCES)


During the past 10 years, increasing emphasis has been placed on the study of the involvement of hormones and calcium in growth and gravitropic response of roots. The establishment of gradients of calcium ions across the tip of roots appears to be essential for the initiation of asymmetric growth associated with the gravitropic response [7, 8, 10] and may be the signal transducer which links the root cap-associated sensor of gravitational orientation [9] and the hormonal control of asymmetric growth, which occurs during gravicurvature (GC).


Maize Root Elongation Rate Plant Growth Substance Gravitropic Response Lower Hemisphere 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1986

Authors and Affiliations

  • T. J. Mulkey
  • M. A. Vaughan
    • 1
  1. 1.Department of Life SciencesIndiana State UniversityTerre HauteUSA

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