Skip Navigation


JXB Advance Access originally published online on February 13, 2004
This Article
Right arrow Full Text Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow All Versions of this Article:
55/397/631    most recent
erh078v1
Right arrow E-letters: Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when E-letters are posted
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 ISI Web of Science
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 arrow Search for citing articles in:
ISI Web of Science (10)
Right arrowRequest Permissions
Right arrow Disclaimer
Google Scholar
Right arrow Articles by Shikata, M.
Right arrow Articles by Kohchi, T.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Shikata, M.
Right arrow Articles by Kohchi, T.
Agricola
Right arrow Articles by Shikata, M.
Right arrow Articles by Kohchi, T.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Journal of Experimental Botany, Vol. 55, No. 397, pp. 631-639, March 1, 2004
© 2004 Oxford University Press

Cell and Molecular Biology, Biochemistry and Molecular Physiology

Characterization of Arabidopsis ZIM, a member of a novel plant-specific GATA factor gene family

Received 19 August 2003; Accepted 2 December 2003

Masahito Shikata, Yuko Matsuda, Kohei Ando, Akiko Nishii, Miho Takemura, Akiho Yokota and Takayuki Kohchi*

Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan

* To whom correspondence should be addressed. Fax: +81 743 72 5569. E-mail: kouchi{at}bs.aist-nara.ac.jp

The Arabidopsis gene ZIM encodes a putative transcription factor containing a novel GATA-type zinc-finger domain with a longer spacer between its two sets of conserved cysteine residues (C-X2-C-X20-C-X2-C). In Arabidopsis, ZIM and homologous proteins, ZML1 and ZML2, were identified as GATA factors containing the C-X2-C-X20-C-X2-C motif, a CCT domain, and an uncharacterized conserved domain. Proteins that possess this domain structure were found exclusively in plants, indicating that they belong to a novel family of plant-specific GATA-type transcription factors. When ZIM was overexpressed using a CaMV 35S promoter in Arabidopsis, hypocotyls and petioles were elongated. The elongation phenotype was observed under all wavelengths of light tested and even in the presence of biosynthetic inhibitors of either brassinosteroid or gibberellin. In ZIM-overexpressing plants, XTH33 which is predicted to function in cell wall modification was detected as an up-regulated gene by microarray analysis, and this could account for the elongation phenotype. Genes in ZIM-overexpressing plants were identified that were up-regulated in a tissue-specific manner, which suggests that transcriptional regulation by ZIM and its consequent effects are spatially controlled.

Key words: Arabidopsis, cell elongation, GATA factor, microarray, transcription factor, zinc finger.


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


This article has been cited by other articles:


Home page
 Plant Physiol.Home page
I. W. Manfield, P. F. Devlin, C.-H. Jen, D. R. Westhead, and P. M. Gilmartin
Conservation, Convergence, and Divergence of Light-Responsive, Circadian-Regulated, and Tissue-Specific Expression Patterns during Evolution of the Arabidopsis GATA Gene Family
Plant Physiology, February 1, 2007; 143(2): 941 - 958.
[Abstract] [Full Text] [PDF]


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.