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Journal of Experimental Botany, Vol 50, 1541-1545, Copyright © 1999 by Oxford University Press


ARTICLES

Review article. New aspects of plant aquaporin regulation and specificity

M Eckert, A Biela, F Siefritz and R Kaldenhoff
Julius-von-Sachs-Institut fur Biowissenschaften, Julius-von-Sachs-Platz 2, D-97082 Wurzburg, Germany; Corresponding author; Fax: +49 931 8886158; E-mail: kaldenhoff@botanik.uni-wuerzburg.de

Recent findings concerning the sensitivity of aquaporins to heavy metal ions and their possible consequences to plant physiology are discussed. Furthermore, results obtained from heterologous expression of plant aquaporin cRNAs in Xenopus oocytes are related to the significance of water flux regulation by modification of the aquaporin protein or change of gene activity is given and new data concerning the selectivity of plasma membrane aquaporins are presented.Keywords: Aquaporin, regulation, specificity, sensitivity to heavy metal ions.
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