Heat shock responsiveness analysis of Athsp70b upstream region

Heat shock responsiveness analysis of Athsp70b upstream region A 1431-bp upstream fragment of Athsp70b was cloned via PCR amplification and expressed in onion epidermis by particle bombardment. Furthermore, the progressive deletions of the Athsp70b upstream fragment linked to the β-glucuronidase (GUS) coding region were performed. Then, a stable GUS expression was analyzed in tobacco BY2 cells and Arabidopsis. Our present results showed that about a 500-bp region upstream ATG of Athsp70b is suitable to confer heat inducibility to the GUS reporter gene in plants and around 116 bp contain nonperfect heat-sensitive element. This promoter responds to heat, salicylic acid, and benzyladenine. GUS staining was mainly observed in the vascular tissues and root tips, implying that Athsp70b is related to water transportation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Heat shock responsiveness analysis of Athsp70b upstream region

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2008 by MAIK Nauka
Subject
Life Sciences; Plant Sciences ; Plant Physiology
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1134/S1021443708050063
Publisher site
See Article on Publisher Site

Abstract

A 1431-bp upstream fragment of Athsp70b was cloned via PCR amplification and expressed in onion epidermis by particle bombardment. Furthermore, the progressive deletions of the Athsp70b upstream fragment linked to the β-glucuronidase (GUS) coding region were performed. Then, a stable GUS expression was analyzed in tobacco BY2 cells and Arabidopsis. Our present results showed that about a 500-bp region upstream ATG of Athsp70b is suitable to confer heat inducibility to the GUS reporter gene in plants and around 116 bp contain nonperfect heat-sensitive element. This promoter responds to heat, salicylic acid, and benzyladenine. GUS staining was mainly observed in the vascular tissues and root tips, implying that Athsp70b is related to water transportation.

Journal

Russian Journal of Plant PhysiologySpringer Journals

Published: Aug 30, 2008

References

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