PMID: 9418054Jan 7, 1998Paper

Overexpressed phytochrome C has similar photosensory specificity to phytochrome B but a distinctive capacity to enhance primary leaf expansion

The Plant Journal : for Cell and Molecular Biology
M QinP H Quail

Abstract

Phytochrome C (phyC) is a low-abundance member of the five-membered phytochrome family of photoreceptors in Arabidopsis. Towards developing an understanding of the photosensory and physiological functions of phyC, transgenic Arabidopsis plants were generated that over-express cDNA-encoded phyC and seedling responses to continuous white, red, or far-red light (Wc, Rc or FRc, respectively) were examined. Transgenic seedlings over-expressing phyC displayed enhanced inhibition of hypocotyl elongation in Rc, but were unchanged in responsiveness to FRc relative to wild-type. These data indicate that phyC has photosensory specificity that is similar to that of phyB and thus distinct from that of phyA. phyC overexpressors with levels only 3 to 4 times the level of endogenous phyC exhibited enhanced primary leaf expansion in Wc. This is in contrast to phyA or phyB overexpressors which respectively have levels that are 500- and 100-fold that of overexpressed phyC but showed no enhancement of primary leaf expansion. Therefore, phyC may have some physiological roles that are different to those of phyA and phyB in the control of seedling responses to light signals.

Citations

Nov 26, 1999·The Plant Journal : for Cell and Molecular Biology·J F Martínez-GarcíaP H Quail
Nov 9, 2000·The Plant Journal : for Cell and Molecular Biology·J L WellerR E Kendrick
Nov 4, 1998·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·P H Quail
Nov 4, 1998·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·G C WhitelamP F Devlin
Sep 4, 2003·The Plant Cell·Keara A FranklinGarry C Whitelam
Jul 27, 2004·Proceedings of the National Academy of Sciences of the United States of America·Robert A Sharrock, Ted Clack
Oct 23, 2012·Trends in Plant Science·Charlotte M M GommersRonald Pierik
Feb 12, 2004·The Plant Journal : for Cell and Molecular Biology·Li ZhaoMinami Matsui
Apr 8, 2015·Plant Signaling & Behavior·Kyounghee Lee, Pil Joon Seo
Nov 8, 2016·PLoS Genetics·Maximiliano Sánchez-LamasPablo D Cerdán
Jul 22, 2017·Plant, Cell & Environment·Rachael J Oakenfull, Seth J Davis
Jan 1, 2004·The Arabidopsis Book·Haiyang Wang, Xing Wang Deng
Jun 27, 2003·Plant & Cell Physiology·Dae-Shik ChoMoon-Soo Soh
Jun 1, 2008·Functional Plant Biology : FPB·Prem KumarJohn Z Kiss
Feb 4, 2021·International Journal of Molecular Sciences·Rocio Quian-Ulloa, Claudia Stange
Dec 19, 2003·Plant Physiology·Brian M Parks
Jun 1, 2002·The New Phytologist·Simon G MøllerGarry C Whitelam

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