Agronomy and Horticulture, Department of
ORCID IDs
Document Type
Article
Date of this Version
2006
Citation
Published in Journal of Experimental Botany 57:15 (2006), pp. 4145–4154; doi: 10.1093/jxb/erl189
Abstract
In previous works, it has been shown, by using ethylene inhibitors and precursors, that ethylene could participate in the regulation of the enhanced ferric reductase activity of Fe-deficient Strategy I plants. However, it was not known whether ethylene regulates the ferric reductase gene expression or other aspects related to this activity. This paper is a study of the effects of ethylene inhibitors and precursors on the expression of the genes encoding the ferric reductases and iron transporters of Arabidopsis thaliana (FRO2 and IRT1) and Lycopersicon esculentum (= Solanum lycopersicum) (FRO1 and IRT1) plants. The effects of ethylene inhibitors and precursors on the activity of the iron reductase and the iron transporter have been examined in parallel. Also studied were the effects of ethylene inhibitors and precursors on the expression of the H+-ATPase genes of cucumber (CsHA1 and CsHA2) and the transcription factor genes of tomato (LeFER) and Arabidopsis (AtFRU or AtFIT1, an LeFER homologue) that regulate ferric reductase, iron transporter, and H+-ATPse activity. The results obtained suggest that ethylene participates in the regulation of ferric reductase, the iron transporter, and H+-ATPase gene expression by affecting the FER (or FER-like) levels.
Included in
Agricultural Science Commons, Agriculture Commons, Agronomy and Crop Sciences Commons, Botany Commons, Horticulture Commons, Other Plant Sciences Commons, Plant Biology Commons
Comments
Copyright © 2006 Carlos Lucena1, Brian M. Waters, F. Javier Romera1, María José García, María Morales, Esteban Alcántara, and Rafael Pérez-Vicente. Published by Oxford University Press on behalf of the Society for Experimental Biology. Used by permission.