PMID: 11309145Apr 20, 2001Paper

Regulation of HEMA1 expression by phytochrome and a plastid signal during de-etiolation in Arabidopsis thaliana

The Plant Journal : for Cell and Molecular Biology
Alex C McCormacMatthew J Terry

Abstract

The synthesis of 5-aminolevulinic acid (ALA) is the rate-limiting step for the formation of all plant tetrapyrroles, including chlorophyll and heme, and regulation of ALA synthesis is therefore critical to plant development. Glutamyl-tRNA reductase (GluTR) is the first committed enzyme of this pathway and is encoded by a small family of nuclear HEMA genes. Here, we have used transgenic Arabidopsis (Arabidopsis thaliana L. Col) lines expressing chimeric HEMA1 promoter:gusA fusion genes, combined with RNA gel blot analyses, to characterise the light-mediated regulation of the Arabidopsis HEMA1 gene during de-etiolation. HEMA1 was expressed strongly, but not exclusively, in photosynthetic tissues and was shown to be light regulated at the transcriptional level by the phytochrome family of photoreceptors acting in both the far-red high irradiance and low fluence response modes. The HEMA2 gene, which is expressed only in roots of seedlings, was not light regulated. Analysis of truncated HEMA1 promoter constructs demonstrated that a -199/+252 promoter fragment was sufficient to confer full light-responsiveness to gusA expression. This fragment contained GT-1/I-box and CCA-1 binding sites that are implicated as the light-responsive ci...Continue Reading

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Citations

Dec 18, 2004·Plant Molecular Biology·Ulrich EckhardtStefan Hörtensteiner
May 22, 2003·Trends in Plant Science·Johanna E CornahAlison G Smith
Nov 26, 2002·The Plant Journal : for Cell and Molecular Biology·Alex C McCormac, Matthew J Terry
Sep 27, 2008·Proceedings of the National Academy of Sciences of the United States of America·Michael MoulinAlison G Smith
Feb 22, 2003·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·John C GrayDaniel MacLean
Dec 11, 2008·Photochemistry and Photobiology·Michael D AllenSabeeha S Merchant
May 4, 2006·Annual Review of Plant Biology·Ajit NottJoanne Chory
Jan 18, 2007·Annual Review of Plant Biology·Ryouichi Tanaka, Ayumi Tanaka
Jan 31, 2008·BMC Plant Biology·Arto J SoitamoEva-Mari Aro
Oct 11, 2008·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Patrick G Stephenson, Matthew J Terry
Oct 11, 2008·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Tatsuru Masuda, Yuichi Fujita
Jan 29, 2011·Journal of Plant Physiology·Judith SchmiedBernhard Grimm
Jul 5, 2006·The FEBS Journal·Philip J LinleyMatthew J Terry
Apr 13, 2012·Plant, Cell & Environment·Vijay K Dalal, Baishnab C Tripathy
Mar 11, 2015·Plant Biotechnology Journal·Dilrukshi S K NagahatennaRyan Whitford
Sep 16, 2014·Physiologia Plantarum·Xin-E SunLiang-Ju Wang
May 17, 2015·Biochimica Et Biophysica Acta·Pawel BrzezowskiBernhard Grimm
Dec 10, 2009·Molecular Plant·Enrico Peter, Bernhard Grimm
Jul 2, 2010·Plant Signaling & Behavior·Baishnab C TripathyRalf Oelmüller
Oct 14, 2016·The New Phytologist·Mike T PageMatthew J Terry
Feb 9, 2018·The Plant Journal : for Cell and Molecular Biology·Xiaqing YuJinfeng Chen
Oct 27, 2018·The Plant Journal : for Cell and Molecular Biology·Zhiwei HouBernhard Grimm
Jan 23, 2019·The Plant Journal : for Cell and Molecular Biology·Tiantian ZhiChunmei Ren
Dec 19, 2019·Plant & Cell Physiology·Zewen WenNing Ning Wang
Sep 13, 2003·The Plant Journal : for Cell and Molecular Biology·Keara A FranklinMatthew J Terry

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