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Plant Physiology 53:80-82 (1974)
© 1974 American Society of Plant Biologists

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Articles

Ethylene-induced Tropism of Trifolium fragiferum L. Stolons 1

Dale J. Hansen2 and Leo E. Bendixen

a Department of Agronomy, Ohio State University, Columbus, Ohio 43210

The hypothesis that ethylene regulates prostrate stem growth was investigated using stolons of strawberry clover (Trifolium fragiferum L. var. Salina). Stolons became erect when treated with ethylene or 2-chloroethylphosphonic acid. Curvature was visibly detectable 2 hours after ethylene treatment, and subsequent stem elongation was rapid. Indoleacetic acid application to prostrate stolons caused only a small transitory curvature persisting less than 48 hours. Indoleacetic acid-stimulated curvature was accompanied by an increase in ethylene evolution. When stolon curvature was induced by placing strawberry clover plants in darkness or by applying gibberellic acid, ethylene production did not parallel stolon curvature.

2 Present address: Monsanto Company, 800 N. Lindbergh Blvd., St. Louis, Mo. 63166.

1 Part of dissertation submitted by D.J.H. in partial fulfillment of requirements for the Ph.D. degree at the Ohio State University.




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F. F. Millenaar, M. C.H. Cox, Y. E.M. d. J. van Berkel, R. A.M. Welschen, R. Pierik, L. A.J.C. Voesenek, and A. J.M. Peeters
Ethylene-Induced Differential Growth of Petioles in Arabidopsis. Analyzing Natural Variation, Response Kinetics, and Regulation
Plant Physiology, March 1, 2005; 137(3): 998 - 1008.
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Copyright © 1974 by the American Society of Plant Biologists