Adaptation of roots to low water potentials by changes in cell wall extensibility and cell wall proteins

It is common for the root/shoot ratio of plants to increase when water availability is limiting. This ratio increases because roots are less sensitive than shoots to growth inhibition by low water potentials. The physiological and molecular mechanisms that assist root growth under drought conditions...

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Veröffentlicht in:Journal of experimental botany. - 1985. - 51(2000), 350 vom: 22. Sept., Seite 1543-53
1. Verfasser: Wu, Y (VerfasserIn)
Weitere Verfasser: Cosgrove, D J
Format: Aufsatz
Sprache:English
Veröffentlicht: 2000
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, U.S. Gov't, Non-P.H.S. Non-programmatic Membrane Proteins Plant Proteins expansin protein, plant Water 059QF0KO0R Glycosyltransferases EC 2.4.- mehr... xyloglucan endotransglycosylase EC 2.4.1.-
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520 |a It is common for the root/shoot ratio of plants to increase when water availability is limiting. This ratio increases because roots are less sensitive than shoots to growth inhibition by low water potentials. The physiological and molecular mechanisms that assist root growth under drought conditions are reviewed, with a focus on changes in cell walls. Maize seedlings adapt to low water potential by making the walls in the apical part of the root more extensible. In part, this is accomplished by increases in expansin activity and in part by other, more complex changes in the wall. The role of xyloglucan endotransglycosylase, peroxidase and other wall enzymes in root adaptation to low water potential is evaluated and some of the complications in the field of study are listed 
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650 4 |a Research Support, U.S. Gov't, Non-P.H.S. 
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