Abscisic acid and 14-3-3 proteins control K+ channel activity in barley embryonic root

P.W.J. van den Wijngaard, M.P. Sinnige, I. Roobeek, C.G. Reumer, J.N.M. Mol, M. Wang, A.H. de Boer, P.J. Schoonheim

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Abstract

Germination of seeds proceeds in general in two phases, an initial imbibition phase and a subsequent growth phase. In grasses like barley, the latter phase is evident as the emergence of the embryonic root (radicle). The hormone abscisic acid (ABA) inhibits germination because it prevents the embryo from entering and completing the growth phase. Genetic and physiological studies have identified many steps in the ABA signal transduction cascade, but how it prevents radicle elongation is still not clear. For elongation growth to proceed, uptake of osmotically active substances (mainly K
Original languageEnglish
Pages (from-to)43-55
Number of pages13
JournalPlant Journal
Volume41
Issue number1
DOIs
Publication statusPublished - 2005

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Bibliographical note

The Plant Journal for cell and molecular biology Issn 0960-7412

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van den Wijngaard, P. W. J., Sinnige, M. P., Roobeek, I., Reumer, C. G., Mol, J. N. M., Wang, M., ... Schoonheim, P. J. (2005). Abscisic acid and 14-3-3 proteins control K+ channel activity in barley embryonic root. Plant Journal, 41(1), 43-55. https://doi.org/10.1111/j.1365-313X.2004.02273.x