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. 1977 Oct;60(4):635-9.
doi: 10.1104/pp.60.4.635.

Effects of lanthanum and ethylenediaminetetraacetate on leaf movements of mimosa

N A Campbell  1 , W W Thomson
Affiliations

Effects of lanthanum and ethylenediaminetetraacetate on leaf movements of mimosa

N A Campbell et al. Plant Physiol. 1977 Oct.

Abstract

Lanthanum and ethylenediaminetetraacetate (EDTA) profoundly affect the rapid leaf movements of Mimosa pudica L. Lanthanum, which mimics calcium but does not penetrate the plasmalemma, inhibits the closing response but does not affect reopening. A low concentration of EDTA retards the reopening process while a higher EDTA concentration prevents the closing movement. There is evidence that the EDTA effects result from chelation of calcium ions rather than chelation of other cations. These results are discussed with regard to the role of calcium in leaf movements.

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References

    1. Plant Physiol. 1972 Jan;49(1):72-81 - PubMed
    1. Plant Physiol. 1969 Aug;44(8):1101-7 - PubMed
    1. J Gen Physiol. 1966 Nov;50(2):461-71 - PubMed
    1. Nature. 1964 Jun 27;202:1338-9 - PubMed
    1. J Pharmacol Exp Ther. 1970 Sep;174(3):517-26 - PubMed

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