Ross_et_al_2002.pdf (129.06 kB)
Auxin-gibberellin interactions and their role in plant growth
journal contribution
posted on 2023-05-16, 13:47 authored by John RossJohn Ross, O'Neill, DP, Wolbang, CM, Symons, GM, James ReidJames ReidRecently it was discovered that auxin promotes gibberellin (GA) biosynthesis in decapitated stems of pea (Pisum sativum L.) and tobacco (Nicotiana tabacum L.), and here we review the evidence for this interaction. We also discuss the possible relationship between auxin and the mechanisms by which bioactive GAs (such as GA 1 ) regulate their own levels, and the implications of the auxin-GA interaction for the control of plant growth. It is now possible to envisage auxin as a messenger linking the apical bud with the biosynthesis of active GAs in the expanding internodes. Finally, new evidence is presented that the promotion of growth by GA 1 does not depend on GA 1 -induced increases in auxin content.
History
Publication title
Journal of Plant Growth RegulationVolume
20Issue
4Pagination
346-353ISSN
0721-7595Department/School
School of Natural SciencesPublisher
Springer-VerlagPlace of publication
United States of AmericaRepository Status
- Restricted