In vivo characterization of transcriptional regulatory sequences involved in the defence-associated expression of the tobacco retrotransposon Tnt1

In vivo characterization of transcriptional regulatory sequences involved in the... The expression of the tobacco retrotransposon Tnt1 is induced by wounding, pathogen infections as well as microbial elicitors and abiotic factors known to induce the plant defence response. We report here that the LTR U3 region is sufficient to mediate transcriptional activation by biotic and abiotic elicitors in stable transgenic conditions. We have used in vivo footprinting techniques in order to analyse the cis-regulatory elements of the LTR U3 region that mediate the induction of Tnt1 expression. Our results indicate that a tandemly repeated short element, named BII box, is involved in the transcriptional activation of the tobacco retrotransposon Tnt1 in association with the plant defence signaling cascade. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Molecular Biology Springer Journals

In vivo characterization of transcriptional regulatory sequences involved in the defence-associated expression of the tobacco retrotransposon Tnt1

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Publisher
Kluwer Academic Publishers
Copyright
Copyright © 1997 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:1005826605598
Publisher site
See Article on Publisher Site

Abstract

The expression of the tobacco retrotransposon Tnt1 is induced by wounding, pathogen infections as well as microbial elicitors and abiotic factors known to induce the plant defence response. We report here that the LTR U3 region is sufficient to mediate transcriptional activation by biotic and abiotic elicitors in stable transgenic conditions. We have used in vivo footprinting techniques in order to analyse the cis-regulatory elements of the LTR U3 region that mediate the induction of Tnt1 expression. Our results indicate that a tandemly repeated short element, named BII box, is involved in the transcriptional activation of the tobacco retrotransposon Tnt1 in association with the plant defence signaling cascade.

Journal

Plant Molecular BiologySpringer Journals

Published: Sep 30, 2004

References

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