Selection of Arabidopsis mutants overexpressing genes driven by the promoter of an auxin-inducible glutathione S-transferase gene

Selection of Arabidopsis mutants overexpressing genes driven by the promoter of an... Transgenic arabidopsis plants were isolated that contained a T-DNA construct in which the promoter of an auxin-inducible glutathione S-transferase (GST) gene from tobacco was fused to the kanamycin resistance (nptII) as well as to the β-glucuronidase (gusA) reporter gene. Subsequently, seeds were treated with EMS to obtain mutants in which both reporter gene fusions were up-regulated. Northern analysis showed that the mRNA level of a related, endogenous auxin-inducible GST gene of Arabidopsis was increased in some of these mutants as well. Two of the gup (GST up-regulated) mutants were characterized in more detail and roughly mapped. Both had epinastic cotyledons and leaves, a phenotype that turned out to be linked to the gup mutation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Molecular Biology Springer Journals

Selection of Arabidopsis mutants overexpressing genes driven by the promoter of an auxin-inducible glutathione S-transferase gene

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Publisher
Kluwer Academic Publishers
Copyright
Copyright © 1999 by Kluwer Academic Publishers
Subject
Life Sciences; Biochemistry, general; Plant Sciences; Plant Pathology
ISSN
0167-4412
eISSN
1573-5028
D.O.I.
10.1023/A:1006129426712
Publisher site
See Article on Publisher Site

Abstract

Transgenic arabidopsis plants were isolated that contained a T-DNA construct in which the promoter of an auxin-inducible glutathione S-transferase (GST) gene from tobacco was fused to the kanamycin resistance (nptII) as well as to the β-glucuronidase (gusA) reporter gene. Subsequently, seeds were treated with EMS to obtain mutants in which both reporter gene fusions were up-regulated. Northern analysis showed that the mRNA level of a related, endogenous auxin-inducible GST gene of Arabidopsis was increased in some of these mutants as well. Two of the gup (GST up-regulated) mutants were characterized in more detail and roughly mapped. Both had epinastic cotyledons and leaves, a phenotype that turned out to be linked to the gup mutation.

Journal

Plant Molecular BiologySpringer Journals

Published: Oct 19, 2004

References

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