The effects of abscisic acid (ABA) on the uptake of sucrose into discs from tobacco (Nicotiana tabacum) source leaves were studied. ABA stimulated an increase in sucrose uptake up to three-fold, depending on the osmotic potential of the medium. Maximal stimulation was observed around 200 mOsm, and at 1 pM ABA. A tentative explanation for the discrepancy between these results and the previously described inhibition by ABA of sucrose uptake into leaf discs from other plant species is presented.

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Acta botanica neerlandica

CC BY 3.0 NL ("Naamsvermelding")

Koninklijke Nederlandse Botanische Vereniging

D. Vreugdenhil, & L.H.J. Kerckhoffs. (1992). Abscisic acid stimulates sucrose uptake into tobacco leaf discs. Acta botanica neerlandica, 41(2), 161–165.