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A time course for the effect of transfer from RT to 8°C on stomatal aperture in epidermal strips of C. communis floating on 2.0 or 0.2 cm3 75 mm KCl for up to 3.5 h. 1.0-cm2 strips (approximately 35–40) were pre-incubated on 25cm3 75 mm KCl for 3 h in the light (PPFD 350 μmol m−2 s−1) before transfer to the cold room (under same PPFD). Each time point is represented by the mean of 25 stomata in a single strip.
