title: Light-induced stomatal movement of selected Arabidopsis thaliana mutants.
abstract: Various Arabidopsis thaliana mutants with defects in phytohormone signal transduction or the reception of light were analysed with regard to their stomatal response in a red, red/blue light irradiation programme. Stomatal response to light was detected with a customized gas exchange measurement device, optimized for the small model plant. Small transpiration-kinetic variations of the two wild-type lines Columbia (Col) and Landsberg erecta (Ler) were observed. A comparison of the mutant lines to the respective wild type revealed significant differences for the phytochrome A (phyA-103), the abscisic acid insensitive (aba3-2) and the auxin resistant (axr1-3) mutant. Furthermore, the zeaxanthin-less mutant line npq1-2 showed no alterations in stomatal response to light.
authors.affiliation: Julius-von-Sachs-Institut für Biowissenschaften, Julius-von-Sachs-Platz 2, D-97082 Würzburg, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Eckert
authors.forename: R
authors.initials: R
authors.lastname: Kaldenhoff
mesh_terms: D017360:Arabidopsis / Q000235:genetics / Q000502:physiology*; D008027:Light; D009154:Mutation