This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Apelbaum, A. Articles by Burg, S. P. Search for Related Content PubMed PubMed Citation Articles by Apelbaum, A. Articles by Burg, S. P. Agricola Articles by Apelbaum, A. Articles by Burg, S. P.

Articles

Effect of Ethylene on Cell Division and Deoxyribonucleic Acid Synthesis in Pisum sativum¹

^a The Fairchild Tropical Garden, Miami, Florida 33156, ^b The Department of Biology, University of Miami, Coral Gables, Florida 33125

Ethylene and supraoptimal levels of 2,4-dichlorophenoxyacetic acid inhibit the growth of the apical hook region of etiolated Pisum sativum (var. Alaska) seedlings by stopping almost all cell divisions. Cells are prevented from entering prophase. The hormones also retard cell division in intact root tips and completely stop the process in lateral buds. The latter inhibition is reversed partially by benzyl adenine. In root tips and the stem plumular and subhook regions, ethylene inhibits DNA synthesis. The magnitude of this inhibition is correlated with the degree of repression of cell division in meristematic tissue, suggesting that the effect on cell division results from a lack of DNA synthesis. Ethylene inhibits cell division within a few hours with a dose-response curve similar to that for most other actions of the gas. Experiments with seedlings grown under hypobaric conditions suggest that the gas naturally controls plumular expansion and cell division in the apical region.

¹ This research was supported by National Science Foundation Grant GB 27424 to S. P. Burg.

This article has been cited by other articles:

				H. Kazama, H. Dan, H. Imaseki, and G. O. Wasteneys Transient Exposure to Ethylene Stimulates Cell Division and Alters the Fate and Polarity of Hypocotyl Epidermal Cells Plant Physiology, April 1, 2004; 134(4): 1614 - 1623. [Abstract] [Full Text] [PDF]

				H. Dan, H. Imaseki, G. O. Wasteneys, and H. Kazama Ethylene Stimulates Endoreduplication But Inhibits Cytokinesis in Cucumber Hypocotyl Epidermis Plant Physiology, December 1, 2003; 133(4): 1726 - 1731. [Abstract] [Full Text]

				Ecker JR The ethylene signal transduction pathway in plants Science, May 5, 1995; 268(5211): 667 - 675. [Abstract] [PDF]