Skip Navigation



Plant and Cell Physiology Advance Access published online on May 6, 2005
Plant and Cell Physiology, doi:10.1093/pcp/pci114
This Article
Right arrow Advance Access manuscript (PDF)
Right arrow All Versions of this Article:
46/7/1154    most recent
pci114v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Hettiarachchi, G. H. C. M.
Right arrow Articles by Chattopadhyay, S.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Hettiarachchi, G. H. C. M.
Right arrow Articles by Chattopadhyay, S.
Agricola
Right arrow Articles by Hettiarachchi, G. H. C. M.
Right arrow Articles by Chattopadhyay, S.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Plant and Cell Physiology 2005 © The Japanese Society of Plant Physiologists (JSPP); all rights reserved.
Received February 24, 2005
Accepted April 19, 2005

Short Communication

Regulation of TOP2 by Various Abiotic Stresses Including Cold and Salinity in Pea and Transgenic Tobacco Plants

G. H. C. M. Hettiarachchi 1, M. K. Reddy 2, Sudhir K. Sopory 2, and Sudip Chattopadhyay 3*

1 National Center for Plant Genome Research, JNU Campus, New Delhi 110067, India; International Center for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi 110067, India
2 International Center for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi 110067, India
3 National Center for Plant Genome Research, JNU Campus, New Delhi 110067, India

* To whom correspondence should be addressed.
Sudip Chattopadhyay, E-mail: sudipchatto{at}yahoo.com


  Abstract

Although abiotic stress affects plant growth and development, demonstration of its direct effect on regulation of the components of DNA replication machinery is largely unknown. In this work, we demonstrate that the expression of TOP2 (encodes topoisomerase II) is upregulated by various abiotic stresses including salinity and low temperature, and phytohormones such as ABA (Abscisic acid) and SA (Salicylic acid). Transgenic studies with different deletion versions of the TOP2 promoter in tobacco define several promoter determinants responsible for specific abiotic stress responsiveness. Taken together, these results demonstrate a direct involvement of stress in the transcriptional regulation of TOP2.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.