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Published May 1997 | public
Journal Article

A dominant mutant receptor from Arabidopsis confers ethylene insensitivity in heterologous plants

Abstract

Ethylene (C_2H_4) is a gaseous hormone that affects many aspects of plant growth and development. Ethylene perception requires specific receptors and a signal transduction pathway to coordinate downstream responses. The etr1-1 gene of Arabidopsis encodes a mutated receptor that confers dominant ethylene insensitivity. Evidence is presented here that etr1-1 also causes significant delays in fruit ripening, flower senescence, and flower abscission when expressed in tomato and petunia plants. The ability of etr1-1 to function in heterologous plants suggests that this pathway of hormone recognition and response is highly conserved and can be manipulated.

Additional Information

© 1997 Nature Publishing Group. Received 31 October 1996; accepted 3 March 1997. The authors are especially grateful to J. Laton, P. Delaquil, J. Rottnek, and N. Mathis for generating transgenic plants and to G. Schaller and D. Tieman for sharing unpublished results. This work was supported in part by a US Department of Agriculture grant (95-37304-2326) to H. Klee and US Department of Energy grant (FG03-88ER13873) to E. Meyerowitz. Florida Agricultural Experiment Station Journal Series No. R-05617.

Additional details

Created:
August 19, 2023
Modified:
October 23, 2023