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Molecular and physiological responses of trees to waterlogging stress.
- Source :
-
Plant, cell & environment [Plant Cell Environ] 2014 Oct; Vol. 37 (10), pp. 2245-59. Date of Electronic Publication: 2014 Apr 07. - Publication Year :
- 2014
-
Abstract
- One major effect of global climate change will be altered precipitation patterns in many regions of the world. This will cause a higher probability of long-term waterlogging in winter/spring and flash floods in summer because of extreme rainfall events. Particularly, trees not adapted at their natural site to such waterlogging stress can be impaired. Despite the enormous economic, ecological and social importance of forest ecosystems, the effect of waterlogging on trees is far less understood than the effect on many crops or the model plant Arabidopsis. There is only a handful of studies available investigating the transcriptome and metabolome of waterlogged trees. Main physiological responses of trees to waterlogging include the stimulation of fermentative pathways and an accelerated glycolytic flux. Many energy-consuming, anabolic processes are slowed down to overcome the energy crisis mediated by waterlogging. A crucial feature of waterlogging tolerance is the steady supply of glycolysis with carbohydrates, particularly in the roots; stress-sensitive trees fail to maintain sufficient carbohydrate availability resulting in the dieback of the stressed tissues. The present review summarizes physiological and molecular features of waterlogging tolerance of trees; the focus is on carbon metabolism in both, leaves and roots of trees.<br /> (© 2014 John Wiley & Sons Ltd.)
- Subjects :
- Carbon metabolism
Carbon Dioxide metabolism
Models, Biological
Nitrogen metabolism
Plant Roots genetics
Plant Roots physiology
Plant Shoots genetics
Plant Shoots physiology
Plant Transpiration physiology
Soil
Trees genetics
Water physiology
Gene Expression Regulation, Plant
Metabolome
Oxygen metabolism
Stress, Physiological
Transcriptome
Trees physiology
Subjects
Details
- Language :
- English
- ISSN :
- 1365-3040
- Volume :
- 37
- Issue :
- 10
- Database :
- MEDLINE
- Journal :
- Plant, cell & environment
- Publication Type :
- Academic Journal
- Accession number :
- 24611781
- Full Text :
- https://doi.org/10.1111/pce.12310