Adaptation of Roots to Drought
In this chapter we examine the morphological, physiological and biochemical adaptations of roots to drought and discuss how roots perceive soil drying and communicate such information to the shoots.
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Edited by 1. T. Baldwin, Jena, Germany M.M. Caldwell, Logan, USA G. Heldmaier, Marburg, Germany O.L. Lange, Würzburg, Germany H.A. Mooney, Stanford, USA E.-D. Schulze, Jena, Germany U. Sommer, Kiel, Germany
Ecological Studies Volumes published since 1997 are listed at the end of this book.
Springer-Verlag Berlin Heidelberg GmbH
H. de Kroon
E.J.W. Visser (Eds.)
Root Ecology With 72 Figures, 2 in Color, and 27 Tables
,
Springer
Prof. Dr. Hans de Kroon Dr. Eric J. W. Visser Section of Experimental Plant Ecology Department of Ecology University of Nijmegen Toernooiveld 6525 ED Nijmegen The Nederlands
ISSN 0070-8356 Library of Congress Cataloging-in-Publication Data Root ecology / H. de Kroon, E.).W. Visser (eds.) p. cm. -- (Ecological studies, ISSN 0070-8356 ; vol. 168) Includes bibliographical references and index. ISBN 978-3-642-05520-1 ISBN 978-3-662-09784-7 (eBook) DOI 10.1007/978-3-662-09784-7 1. Roots (Botany)--Ecology. I. Kroon, Hans deo 11. Visser, E.). W. (Eric ). W.), 1966III. Ecological studies ; v. 168. QK644.R6522003 575.5'4--dc21
2003041547
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Preface
The early vascular plaIits that invaded the land had a very simple morphology. Typically consisting of a rhizomatous axis with vertical aerial axes placed on top, they had a low degree of organ differentiation. Unlike the situation experienced by their aquatic ancestors, the source of water and mineral nutrients was located in the soil. To aid the uptake of these resources, these primitive plants possessed only rhizoids, root hair-like outgrowths from the rhizomatous axis providing some anchorage and increasing the surface area by which the plants had contact with the soil (Mogie and Hutchings 1990). Much has happened since. In the course of evolution, a great variety of root sys
