TY  - JOUR
AU  - Prokić, Ljiljana
AU  - Jovanović, Zorica
AU  - McAinsh, MR
AU  - Vucinić, Z
AU  - Stikić, Radmila
PY  - 2006
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/1332
AB  - The direct effects of pH changes and/or abscisic acid (ABA) on stomatal aperture were examined in epidermal strips of Commelina communis L. and Arabidopsis thaliana. Stomata were initially opened at pH 7 or pH 5. The stomatal closure induced by changes in external pH and/or ABA (10 mu M or 10 nM) was monitored using video microscopy and quantified in terms of changes in stomatal area using image analysis software. Measurements of aperture area enabled stomatal responses and, in particular, small changes in stomatal area to be quantified reliably. Both plant species exhibited a biphasic closure response to ABA: an initial phase of rapid stomatal closure, followed by a second, more prolonged, phase during which stomata closure proceeded at a slower rate. Changes in stomatal sensitivity to ABA were also observed. Comparison of these effects between C. communis and A. thaliana demonstrate that this differential sensitivity of stomata to ABA is species-dependent, as well as being dependent on the pH of the extracellular environment.
PB  - Oxford Univ Press, Oxford
T2  - Journal of Experimental Botany
T1  - Species-dependent changes in stomatal sensitivity to abscisic acid mediated by external pH
EP  - 683
IS  - 3
SP  - 675
VL  - 57
DO  - 10.1093/jxb/erj057
ER  - 

@article{
author = "Prokić, Ljiljana and Jovanović, Zorica and McAinsh, MR and Vucinić, Z and Stikić, Radmila",
year = "2006",
abstract = "The direct effects of pH changes and/or abscisic acid (ABA) on stomatal aperture were examined in epidermal strips of Commelina communis L. and Arabidopsis thaliana. Stomata were initially opened at pH 7 or pH 5. The stomatal closure induced by changes in external pH and/or ABA (10 mu M or 10 nM) was monitored using video microscopy and quantified in terms of changes in stomatal area using image analysis software. Measurements of aperture area enabled stomatal responses and, in particular, small changes in stomatal area to be quantified reliably. Both plant species exhibited a biphasic closure response to ABA: an initial phase of rapid stomatal closure, followed by a second, more prolonged, phase during which stomata closure proceeded at a slower rate. Changes in stomatal sensitivity to ABA were also observed. Comparison of these effects between C. communis and A. thaliana demonstrate that this differential sensitivity of stomata to ABA is species-dependent, as well as being dependent on the pH of the extracellular environment.",
publisher = "Oxford Univ Press, Oxford",
journal = "Journal of Experimental Botany",
title = "Species-dependent changes in stomatal sensitivity to abscisic acid mediated by external pH",
pages = "683-675",
number = "3",
volume = "57",
doi = "10.1093/jxb/erj057"
}

Prokić, L., Jovanović, Z., McAinsh, M., Vucinić, Z.,& Stikić, R.. (2006). Species-dependent changes in stomatal sensitivity to abscisic acid mediated by external pH. in Journal of Experimental Botany
Oxford Univ Press, Oxford., 57(3), 675-683.
https://doi.org/10.1093/jxb/erj057

Prokić L, Jovanović Z, McAinsh M, Vucinić Z, Stikić R. Species-dependent changes in stomatal sensitivity to abscisic acid mediated by external pH. in Journal of Experimental Botany. 2006;57(3):675-683.
doi:10.1093/jxb/erj057 .

Prokić, Ljiljana, Jovanović, Zorica, McAinsh, MR, Vucinić, Z, Stikić, Radmila, "Species-dependent changes in stomatal sensitivity to abscisic acid mediated by external pH" in Journal of Experimental Botany, 57, no. 3 (2006):675-683,
https://doi.org/10.1093/jxb/erj057 . .

TY  - CONF
AU  - Prokić, Ljiljana
AU  - Jovanović, Zorica
AU  - Stikić, Radmila
AU  - Vucinić, Z
PY  - 2005
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/1005
AB  - An analysis of the rate of stomatal closure in epidermal strips of Commelina communis L. induced by different calcium concentrations (10 nM to 1 mM) demonstrated a biphasic dependency, the initial process of closure being more calcium dependent. This dependency was more evident at pH 7 than pH 5 of the bathing medium. Addition of low concentrations of abscisic acid (10 nM) induced a broadening of the Ca-2 dependency, while 10 mu M abscisic acid increased the rate of stomatal closure in the whole Ca2+ range and to a large extent abolished the calcium-induced effects. Such results indicate an interaction of external protons, Ca2+, and abscisic acid, and possible competition for the membrane associated binding sites of the mechanism(s) responsible for the regulation of stomatal closure.
PB  - New York Acad Sciences, New York
C3  - Biophysics from Molecules to Brain: in Memory of Radoslav K. Andjus
T1  - The mutual effect of extracellular Ca2+, abscisic acid, and pH on the rate of stomatal closure
EP  - 516
SP  - 513
VL  - 1048
DO  - 10.1196/annals.1342.079
ER  - 

@conference{
author = "Prokić, Ljiljana and Jovanović, Zorica and Stikić, Radmila and Vucinić, Z",
year = "2005",
abstract = "An analysis of the rate of stomatal closure in epidermal strips of Commelina communis L. induced by different calcium concentrations (10 nM to 1 mM) demonstrated a biphasic dependency, the initial process of closure being more calcium dependent. This dependency was more evident at pH 7 than pH 5 of the bathing medium. Addition of low concentrations of abscisic acid (10 nM) induced a broadening of the Ca-2 dependency, while 10 mu M abscisic acid increased the rate of stomatal closure in the whole Ca2+ range and to a large extent abolished the calcium-induced effects. Such results indicate an interaction of external protons, Ca2+, and abscisic acid, and possible competition for the membrane associated binding sites of the mechanism(s) responsible for the regulation of stomatal closure.",
publisher = "New York Acad Sciences, New York",
journal = "Biophysics from Molecules to Brain: in Memory of Radoslav K. Andjus",
title = "The mutual effect of extracellular Ca2+, abscisic acid, and pH on the rate of stomatal closure",
pages = "516-513",
volume = "1048",
doi = "10.1196/annals.1342.079"
}

Prokić, L., Jovanović, Z., Stikić, R.,& Vucinić, Z.. (2005). The mutual effect of extracellular Ca2+, abscisic acid, and pH on the rate of stomatal closure. in Biophysics from Molecules to Brain: in Memory of Radoslav K. Andjus
New York Acad Sciences, New York., 1048, 513-516.
https://doi.org/10.1196/annals.1342.079

Prokić L, Jovanović Z, Stikić R, Vucinić Z. The mutual effect of extracellular Ca2+, abscisic acid, and pH on the rate of stomatal closure. in Biophysics from Molecules to Brain: in Memory of Radoslav K. Andjus. 2005;1048:513-516.
doi:10.1196/annals.1342.079 .

Prokić, Ljiljana, Jovanović, Zorica, Stikić, Radmila, Vucinić, Z, "The mutual effect of extracellular Ca2+, abscisic acid, and pH on the rate of stomatal closure" in Biophysics from Molecules to Brain: in Memory of Radoslav K. Andjus, 1048 (2005):513-516,
https://doi.org/10.1196/annals.1342.079 . .