Evidence for a rapid effect of abscisic acid on amino acid metabolism in Lemna |
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| Affiliation: | 1. Faculty of Medicine, Imperial College London, United Kingdom;2. Department of Medical Microbiology, Public Health Wales, United Kingdom;3. Department of Pharmacology and Therapeutics, University of Liverpool, United Kingdom |
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| Abstract: | Abscisic acid (ABA) causes an increase in free amino acid content of the fronds of Lemna minor, L. paucicostata and L. polyrrhiza within 6–12 h. This increase is followed by a temporary decline and a further, slower rise. Within 3 h of transfer to ABA, a substantial increase in medium amino nitrogen was detected indicating an increased rate of efflux, and possibly implying effects on membrane permeability. |
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