Transporters and Pumps in Plant Signaling
Due to their sessile lifestyle, plants need to efficiently adapt to changing environmental conditions during their life cycle. Nutrient acquisition from the soil has to be able to adapt to considerable fluctuations in concentrations to ensure adequate dis
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Series Editors Frantisˇ ek Balusˇ ka Department of Plant Cell Biology, IZMB, University of Bonn, Kirschallee 1, D-53115 Bonn, Germany Jorge Vivanco Center for Rhizosphere Biology, Colorado State University, 217 Shepardson Building, Fort Collins, CO 80523-1173, USA
For further volumes: http://www.springer.com/series/8094
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Markus Geisler
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Kees Venema
Editors
Transporters and Pumps in Plant Signaling
Editors Dr. Markus Geisler University of Zurich Institute of Plant Biology Molecular Plant Physiology Zollikerstrasse 107 CH-8008 Zurich Switzerland [email protected]
Dr. Kees Venema CSIC Estacio´n Experimental del Zaidı´n Depto. Bioquı´mica, Biologı´a Celular y Molecular de Plantas Profesor Albareda 1 E-18008 Granada Spain [email protected]
ISSN 1867-9048 e-ISSN 1867-9056 ISBN 978-3-642-14368-7 e-ISBN 978-3-642-14369-4 DOI 10.1007/978-3-642-14369-4 Springer Heidelberg Dordrecht London New York Library of Congress Control Number: 2010938377 # Springer-Verlag Berlin Heidelberg 2011 This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilm or in any other way, and storage in data banks. Duplication of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9, 1965, in its current version, and permission for use must always be obtained from Springer. Violations are liable to prosecution under the German Copyright Law. The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. Cover design: SPi Publisher Services Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com)
Preface
Terrestrial plants are unable to relocate when faced with biological, physical, or chemical stress and have, therefore, developed efficient signaling mechanisms to respond to and ensure survival under adverse circumstances. The auxotrophic lifestyle obviously allows plants to fuel more primary active ATP-dependent tranporters (¼ pumps) than animals. Moreover, unlike bacteria that rely entirely on their cell walls, higher plants needed more secondary transport systems to control cell homeostasis and osmotic pressure. Finally, plant-specific organelles and vacuoles provide storage pools for ions and catabolites that are filled by cotransporters. This correlates with an increased and more divergent number of transporter genes, mainly pumps and secondary active transporters, in higher plants compared with genomes from bacteria or animals. Although plant sensing and responding mechanisms might be considered as simple and even slow compared with nervous systems in animals, the basic mechanisms of signal transduction and sensing are very similar. At
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