Studies of the Inhibition of Stomatal Opening by Naphth-1-ylacetic Acid and Abscisic Acid
- 1 October 1984
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Experimental Botany
- Vol. 35 (10) , 1410-1418
- https://doi.org/10.1093/jxb/35.10.1410
Abstract
Evidence is presented which confirms the inhibitory action of the synthetic auxin, NAA, on stomatal opening. In contrast to the natural auxin IAA, NAA exerts effects which, in some respects, resemble those of ABA. The mode of action of NAA on the guard cells is, however, thought to be different from that of ABA. When NAA and ABA are applied together, their combined action results in a greater reduction in stomatal aperture than would be predicted from their separate effects.Keywords
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