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Annals of Botany 79 (Supplement A): 33-37, 1997
© 1997 Annals of Botany Company

The Hypoxic Response of Three Alcohol Dehydrogenase Genes: In Vivo and In Vitro Footprinting of DNA/Protein Interactions Describes Multiple Signalling Connections

Ann-Lisa Paul 1 and Robert J. Ferl 1

1 Department of Horticultural Sciences, University of Florida, Gainesville, Florida 32611, USA

The induction of plant genes by hypoxia has served as a paradigm for understanding gene expression in response to environmental stresses. We have used multiple approaches to our study of gene induction by hypoxia, beginning with in vivo footprinting of alcohol dehydrogenase (adh) genes as they enter and maintain active transcription in response to reduced environmental oxygen. These experiments, combined with the molecular dissection of promoters and studies on chromatin structure, have lead to a detailed description of the molecular state of adh genes in a transcriptionally active mode. Recently, we have cloned some of the protein factors involved in regulating the expression of adh genes, and have begun to understand the possible associations that exist among gene regulatory proteins and diverse cell signalling pathways.

Genomic sequencing, 14-3-3, G-box, maize, Arabidopsis, anoxia, chromatin, adh

Submitted on January 15, 1996
Accepted on April 22, 1996


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