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The effect of benzo‐18‐crown‐6, a synthetic ionophore, on stomatal opening and its interaction with abscisic acid
Author(s) -
RICHARDSON C. H.,
TRUTER M. R.,
WINGFIELD J. N.,
TRAVIS A. J.,
MANSFIELD T. A.,
JARVIS R. G.
Publication year - 1979
Publication title -
plant, cell and environment
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.646
H-Index - 200
eISSN - 1365-3040
pISSN - 0140-7791
DOI - 10.1111/j.1365-3040.1979.tb00087.x
Subject(s) - abscisic acid , transpiration , ionophore , crown (dentistry) , chemistry , potassium , horticulture , botany , biophysics , biology , biochemistry , photosynthesis , materials science , organic chemistry , membrane , composite material , gene
. Treatment of tomato seedlings with 5 mM benzo‐18‐crown‐6, a potassium ionophore, produced a reduction in transpiration of 40%. Treatments of epidermal strips of Commelina communis with ben‐zo‐18‐crown‐6 (1‐l0mM) inhibited stomatal opening, and this effect was shown to be reversible. An antagonistic interaction between abscisic acid (10 −7 M) and benzo‐18‐crown‐6 (4 × 10 −3 M) was also observed.