Abstract
Application of the ethoxy analog of rhizobitoxine (l-2-amino-4-[2′-aminoethoxy]-trans-3-butenoic acid), an inhibitor of ethylene biosynthesis, inhibited growth of apple, crabapple, and apricot buds released from dormancy by chilling or by treatment with benzyladenine. When tea crabapple (Malus hupehensis [Pamp.] Rehd.) buds were sprayed once with 8.8 × 10−3m benzyladenine, ethylene production by the buds increased significantly 24 to 48 hours after benzyladenine treatment. Application of the rhizobitoxine analog to the buds at the time of benzyladenine treatment reduced ethylene evolution to the level of the controls for up to 2 weeks after treatment. Increase in bud weight was inhibited also but to a lesser extent. These data suggest that growth of buds is accompanied by ethylene production and that the inhibition of ethylene biosynthesis also inhibits bud growth. Since additional metabolic effects result from the action of the rhizobitoxine analog, no firm conclusions on its role can be drawn at this time.
Full text
PDF
Images in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Fuchs Y., Lieberman M. Effects of Kinetin, IAA, and Gibberellin on Ethylene Production, and Their Interactions in Growth of Seedlings. Plant Physiol. 1968 Dec;43(12):2029–2036. doi: 10.1104/pp.43.12.2029. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lau O. L., Yang S. F. Mechanism of a Synergistic Effect of Kinetin on Auxin-induced Ethylene Production: Suppression of Auxin Conjugation. Plant Physiol. 1973 Jun;51(6):1011–1014. doi: 10.1104/pp.51.6.1011. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lieberman M., Kunishi A. Stimulation of ethylene production in apple tissue slices by methionine. Plant Physiol. 1966 Mar;41(3):376–382. doi: 10.1104/pp.41.3.376. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Owens L. D., Lieberman M., Kunishi A. Inhibition of ethylene production by rhizobitoxine. Plant Physiol. 1971 Jul;48(1):1–4. doi: 10.1104/pp.48.1.1. [DOI] [PMC free article] [PubMed] [Google Scholar]