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Molecular strategies for improving waterlogging tolerance in plants

E.S. Dennis, R. Dolferus, M. Ellis, M. Rahman, Y. Wu, F.U. Hoeren, A. Grover, K.P. Ismond, A.G. Good and W.J. Peacock
Journal of Experimental Botany
Vol. 51, No. 342, THEMED ISSUE: Molecular Physiology: Engineering crops for hostile environments (JANUARY 2000), pp. 89-97
Published by: Oxford University Press
Stable URL: http://www.jstor.org/stable/23696459
Page Count: 9
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Molecular strategies for improving waterlogging tolerance in plants
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Abstract

Plants, like animals, are obligate aerobes, but due to their inability to move, have evolved adaptation mechanisms that enable them to survive short periods of low oxygen supply, such as those occurring after heavy rain or flooding. Crop plants are often grown on soils subject to waterlogging and many are sensitive to waterlogging of the root zone. The combination of unfavourable weather conditions and suboptimal soil and irrigation techniques can result in severe yield losses. The molecular basis of the adaptation to transient low oxygen conditions has not been completely characterized, but progress has been made towards identifying genes and gene products induced during low oxygen conditions. Promoter elements and transcription factors involved in the regulation of anaerobically induced genes have been characterized. In this paper an account is presented of the molecular strategies that have been used in an attempt to increase flooding tolerance of crop plants.

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