title: Importance of the cap cells in maize root gravireaction.
abstract: The length of the maize root cap differs significantly from one root to another. The gravireaction of roots appears to depend upon the cap length; when it is smallest, the downward curvature is lowest. Using a freezing technique, it was possible to destroy a part of the root cap and to observe that the smaller the number of root cap cells which remained, the less pronounced was the gravitropic response.
authors.affiliation: Institut de Biologie et de Physiologie Végétales, Université de Lausanne, 6, Place de la Riponne, CH-1005, Lausanne, Switzerland.
authors.forename: P E
authors.initials: PE
authors.lastname: Pilet