A basic leucine zipper transcription factor, G-box-binding factor 1, regulates blue light-mediated photomorphogenic growth in Arabidopsis.

The Journal of Biological Chemistry
Chandrashekara MallappaSudip Chattopadhyay

Abstract

Several transcriptional regulators have been identified and demonstrated to play either positive or negative regulatory roles in seedling development. However, the regulatory coordination between hypocotyl elongation and cotyledon expansion during early seedling development in plants remains unknown. We report the identification of a Z-box binding factor (ZBF2) and its functional characterization in cryptochrome-mediated blue light signaling. ZBF2 encodes a G-box binding factor (GBF1), which is a basic leucine zipper transcription factor. Our DNA-protein interaction studies reveal that ZBF2/GBF1 also interacts with the Z-box light-responsive element of light-regulated promoters. Genetic analyses of gbf1 mutants and overexpression studies suggest that GBF1 acts as a repressor of blue light-mediated inhibition in hypocotyl elongation, however, it acts as a positive regulator of cotyledon expansion during photomorphogenic growth. Furthermore, whereas GBF1 acts as a positive regulator of lateral root formation, it differentially regulates the expression of light-inducible genes. Taken together, these results demonstrate that GBF1 is a unique transcriptional regulator of photomorphogenesis in blue light.

References

Nov 1, 1988·Proceedings of the National Academy of Sciences of the United States of America·S B Ha, G An
Dec 1, 1995·Trends in Biochemical Sciences·A E MenkensA R Cashmore
Dec 1, 1996·The Plant Journal : for Cell and Molecular Biology·S A BarnesN H Chua
Apr 30, 1999·Science·A R CashmoreD Liu
Aug 10, 1999·Seminars in Cell & Developmental Biology·X W Deng, P H Quail
Oct 3, 2001·Genes & Development·M L BallesterosN H Chua
Mar 14, 2002·Current Opinion in Cell Biology·Peter H Quail
May 23, 2002·Developmental Cell·Tsuyoshi MizoguchiGeorge Coupland
Jun 5, 2002·The Plant Cell·Chentao Lin
Sep 11, 2002·The Plant Journal : for Cell and Molecular Biology·Vandana YadavSudip Chattopadhyay
May 2, 2003·The Plant Cell·Simon G MøllerNam-Hai Chua
Aug 2, 2003·Science·José M AlonsoJoseph R Ecker
Oct 11, 2003·The Plant Journal : for Cell and Molecular Biology·Wei LiuHong-Wei Xue
Sep 1, 2004·Current Opinion in Plant Biology·Isabelle SchepensChristian Fankhauser
Dec 1, 2004·Annual Review of Genetics·Meng ChenChristian Fankhauser

❮ Previous
Next ❯

Citations

Apr 27, 2010·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Susan McCallumJulie Graham
Mar 20, 2012·BMC Plant Biology·Babu Rajendra V PrasadSudip Chattopadhyay
Apr 30, 2011·Annual Review of Plant Biology·Inês ChavesMargaret Ahmad
Aug 12, 2014·Plant Molecular Biology·Xiaoyu JiYucheng Wang
Nov 22, 2015·The Plant Journal : for Cell and Molecular Biology·Yang SunGuangmin Xia
Apr 3, 2012·The Plant Journal : for Cell and Molecular Biology·Santiago A TrupkinJorge J Casal
Jun 6, 2015·The Plant Journal : for Cell and Molecular Biology·Jay P MauryaSudip Chattopadhyay
Jun 17, 2009·Molecular Plant·Min Chul KimMoo Je Cho
Jul 17, 2013·Plant Signaling & Behavior·Sreeramaiah N Gangappa, Sudip Chattopadhyay
Jun 5, 2013·Plant Signaling & Behavior·Sreeramaiah N GangappaJavier F Botto
Nov 6, 2012·Plant Signaling & Behavior·Hathi Ram, Sudip Chattopadhyay
Jun 18, 2017·The Plant Journal : for Cell and Molecular Biology·Mrunmay K GiriAshis K Nandi
Feb 17, 2007·Nature Reviews. Genetics·Yuling JiaoXing Wang Deng
May 7, 2019·The Plant Journal : for Cell and Molecular Biology·Moumita ChakrabortySudip Chattopadhyay
Dec 4, 2019·Plant Direct·Archana Kumari SrivastavaSudip Chattopadhyay

❮ Previous
Next ❯

Related Concepts

Related Feeds

ASBMB Publications

The American Society for Biochemistry and Molecular Biology (ASBMB) includes the Journal of Biological Chemistry, Molecular & Cellular Proteomics, and the Journal of Lipid Research. Discover the latest research from ASBMB here.