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

Research output: Contribution to journalArticle

208 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Pages (from-to)1543-1553
Number of pages11
JournalJournal of experimental botany
Volume51
Issue number350
DOIs
StatePublished - Jan 1 2000

Fingerprint

extensibility
water potential
Cell Wall
cell walls
Water
xyloglucan:xyloglucosyl transferase
expansins
Proteins
proteins
Plant Shoots
root shoot ratio
growth retardation
Droughts
root growth
peroxidase
Growth
Seedlings
drought
Peroxidase
Zea mays

All Science Journal Classification (ASJC) codes

  • Physiology
  • Plant Science

Cite this

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abstract = "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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Adaptation of roots to low water potentials by changes in cell wall extensibility and cell wall proteins. / Wu, Y.; Cosgrove, D. J.

In: Journal of experimental botany, Vol. 51, No. 350, 01.01.2000, p. 1543-1553.

Research output: Contribution to journalArticle

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