An ozone-responsive region of the grapevine resveratrol synthase promoter differs from the basal pathogen-responsive sequence

An ozone-responsive region of the grapevine resveratrol synthase promoter differs from the basal... Stilbene synthase (STS) is an enzyme involved in the biosynthesis of stilbenes, which are synthesized in various plants in response to pathogen attack, UV irradiation or exposure to ozone. We describe analysis of an ozone inducible STS transcript and its corresponding promoter (Vst1), combined with the β-glucuronidase (GUS) reporter gene. A single ozone pulse (0.1 µl/l, 10 h) resulted in 11-fold GUS expression. Histochemical localization of GUS activity revealed small spots distributed over the whole leaf. Cross-sections of leaf tissue showed that the Vst1 promoter was induced in palisade and spongy parenchyma cells and to a lesser extent in epidermal cells. Deletions at the 5′ end showed that a partial promoter sequence between position − 430 and− 280 constituted the ozone-responsive region, whereas for effective pathogen-inducibility sequences from− 280 to −140 have been shown to be necessary. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Molecular Biology Springer Journals

An ozone-responsive region of the grapevine resveratrol synthase promoter differs from the basal pathogen-responsive sequence

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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:1005830714852
Publisher site
See Article on Publisher Site

Abstract

Stilbene synthase (STS) is an enzyme involved in the biosynthesis of stilbenes, which are synthesized in various plants in response to pathogen attack, UV irradiation or exposure to ozone. We describe analysis of an ozone inducible STS transcript and its corresponding promoter (Vst1), combined with the β-glucuronidase (GUS) reporter gene. A single ozone pulse (0.1 µl/l, 10 h) resulted in 11-fold GUS expression. Histochemical localization of GUS activity revealed small spots distributed over the whole leaf. Cross-sections of leaf tissue showed that the Vst1 promoter was induced in palisade and spongy parenchyma cells and to a lesser extent in epidermal cells. Deletions at the 5′ end showed that a partial promoter sequence between position − 430 and− 280 constituted the ozone-responsive region, whereas for effective pathogen-inducibility sequences from− 280 to −140 have been shown to be necessary.

Journal

Plant Molecular BiologySpringer Journals

Published: Sep 29, 2004

References

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