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The biochemical control of leaf expansion during drought

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Abstract

Over the past decade it has become clear that we cannot always explain the observed reduction in leaf expansion rates during drought by measuring the plant's water relations. This has led us to question the possibility of a role for the cell wall and its biochemical machinery in controlling the rate of leaf expansion during drought. However, if we are to reject or modify previous assumptions regarding the control of leaf expansion during drought, then we must offer alternative explanations. This article addresses recent work from this laboratory and in the literature, concerning the involvement of cell wall-enzymes, pH and abscisic acid (ABA) in regulating leaf expansion during water deficit.

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  1. Department of Biological Sciences, IENS, Lancaster University, Bailrigg, Lancaster, LA1 4YQ, UK

    Mark A. Bacon

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Bacon, M.A. The biochemical control of leaf expansion during drought. Plant Growth Regulation 29, 101–112 (1999). https://doi.org/10.1023/A:1006299514732

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