Growth inhibitor from the root cap of Zea mays.
The downward lateral transport of at least one inhibitor produced in or released by the cap of a maize root partly explains differences in growth of the upper and lower sides of roots placed in the horizontal position.The relative activity or level of such a regulator increases with the increase in root length.
Institute of Plant Biology and Physiology, University of Lausanne, Place de la Riponne, CH-1005, Lausanne, Switzerland.
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