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Science 310 (5745): 60-61

Copyright © 2005 by the American Association for the Advancement of Science

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Enhanced: Growth by Auxin: When a Weed Needs Acid

Markus Grebe

In his Perspective, Grebe discusses how a plant proton pump residing in intracellular compartments, rather than in the plasma membrane of the cell surface, regulates growth and development. The pump modulates the expression at the plasma membrane of both a transporter for the hormone auxin and another proton pump. These findings open new views on how plants regulate cell wall acidity and hormone transport during development.

The author is at the Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 90 183 Umeå, Sweden. E-mail: markus.grebe{at}

Expression of a Constitutively Activated Plasma Membrane H+-ATPase Alters Plant Development and Increases Salt Tolerance.
F. Gevaudant, G. Duby, E. von Stedingk, R. Zhao, P. Morsomme, and M. Boutry (2007)
Plant Physiology 144, 1763-1776
   Abstract »    Full Text »    PDF »
Comparing regional transcript profiles from maize primary roots under well-watered and low water potential conditions.
V Poroyko, W. Spollen, L. Hejlek, A. Hernandez, M. LeNoble, G Davis, H. Nguyen, G. Springer, R. Sharp, and H. Bohnert (2007)
J. Exp. Bot. 58, 279-289
   Abstract »    Full Text »    PDF »

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