Auxin and Kinetin Interaction in Apical Dominance
Abstract
The effects of auxin on the inhibition of lateral buds in decapitated bean plants are enhanced if kinetin is applied together with auxin. The uptake of 14 C-indoleacetic acid by the stumps of decapitated plants is increased in the presence of kinetin and leads to extensive transport of 14 C-indoleacetic acid in the stems. The increased bud inhibition resulting when auxin and kinetin are applied together may be due to greater amounts of auxin reaching the buds, but an alternative explanation is that metabolites are directed from the buds to the point of hormone application.
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Shein and Jackson (1972) and Davies et al. (1966) found that kinetin applied alone to the cut stump of decapitated plants did not significantly alter bud outgrowth rate compared with controls.
“Shein and Jackson (1972) and Davies et al. (1966) both found that kinetin applied alone to the cut stump of decapitated plants did not alter the rate of bud outgrowth signi®cantly compared with controls.”
From The hormonal regulation of axillary bud growth in <i>Arabidopsis</i> (2000) · cites this paper as Davies et al. (1966)
Previous studies show that applying cytokinin together with auxin to the cut stem of decapitated plants can enhance auxin inhibition of lateral bud growth.
“These results are consistent with previous studies showing that applying cytokinin together with auxin to the cut stem of decapitated plants can enhance auxin inhibition of lateral bud growth (Ali and Fletcher, 1971;Davies et al., 1966;Hillman, 1970;Phillips, 1969).”
From The hormonal regulation of axillary bud growth in <i>Arabidopsis</i> (2000) · cites this paper as Davies et al., 1966
Evidence suggests that cytokinin applied to the cut stump or apical bud may strengthen auxin inhibition by enhancing IAA transport from the apex.
“Evidence suggests that cytokinin applied to the cut stump or apical bud may strengthen auxin inhibition by enhancing IAA transport from the apex of plants (Davies et al., 1966;Li and Bangerth, 1992).”
From The hormonal regulation of axillary bud growth in <i>Arabidopsis</i> (2000) · cites this paper as Davies et al., 1966
Cited by
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The hormonal regulation of axillary bud growth in <i>Arabidopsis</i>
Chatfield, S. P., Stirnberg, P., Forde, B. G., & Leyser, O. (2000) · The Plant Journal · doi:10.1046/j.1365-313x.2000.00862.x · Cited by 284 · see citing works
- Authors
- Davies, C. R., Seth, A. K., & Wareing, P. F.
- Affiliations
- Aberystwyth University (GB)
- Venue
- Science
- Published
- 1966-01-28
- Volume
- 151
- Issue
- 3709
- Pages
- 468-469
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1999109566
- Cited by
- 50
- References
- 0
- Citations by year
- 2022: 1 · 2019: 1 · 2018: 2 · 2017: 1 · 2015: 2 · 2014: 2 · 2013: 1
- FWCI
- 10.37
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Science (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Molecular Biology Research
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Parasitism and Resistance
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Physiology and Cultivation Studies
- Keywords
- auxin, kinetin, apical dominance, decapitation, auxin transport, cytokinins, bean plants, plant hormones
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