Symplastic Transport of Gibberellins: Evidence from Flux and Inhibitor Studies
- 1 June 1979
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Experimental Botany
- Vol. 30 (3) , 439-447
- https://doi.org/10.1093/jxb/30.3.439
Abstract
The pathway of transport of gibberellins (GA1 and GA3) in oat coleoptiles has been investigated, using conventional but modified transport methods and evidence from flux studies. Longitudinal transport, which is non-polar, is strongly reduced by azide. On the other hand, azide does not reduce uptake of gibberellin. After a time lag of 160 min, azide increases both uptake and loss of gibberellins. If transport of GA were apoplastic it should therefore be unaffected or even increased by the presence of azide. The data therefore support the hypothesis that gibberellin transport is symplastic. Some part of the symplast, possibly the plasmodesmata themselves, is affected by azide.This publication has 0 references indexed in Scilit: