Rapid, organ-specific transcriptional responses to light regulate photomorphogenic development in dicot seedlings.
Li Y, Swaminathan K, Hudson ME.SourceDepartment of Crop Sciences , University of Illinois at Urbana-Champaign, Urbana, Illinois 61801.
Plant physiology.Plant Physiol.2011 Aug;156(4):2124-40. Epub 2011 Jun 7.
The dicotyledon seedling undergoes organ-specific photomorphogenic development when exposed to light. The cotyledons open and expand, the apical hook opens, and the hypocotyl ceases to elongate. Using the large and easily dissected seedlings of soybean (Glycine max 'Williams 82'), we show that genes
Multiple kinases promote light-induced degradation of PIF1.
Bu Q, Zhu L, Huq E.SourceSection of Molecular Cell and Developmental Biology and The Institute for Cellular and Molecular Biology, The University of Texas at Austin; Austin, TX, USA.
Plant signaling & behavior.Plant Signal Behav.2011 Aug 1;6(8). [Epub ahead of print]
Phytochrome (phy) family of photoreceptors is a broad sensor of environmental light signals that promote photomorphogenic development of plants. Phytochrome Interacting Factors (PIFs), bHLH family of transcription factors, repress photomorphogenesis in the dark in an overlapping manner. Phytochromes
PHYTOCHROME-INTERACTING FACTORS PIF4 and PIF5 Are Implicated in the Regulation of Hypocotyl Elongation in Response to Blue Light in Arabidopsis thaliana
Bioscience, Biotechnology, and Biochemistry 74(12), 2538-2541, 2010
… In this study, we found that these transcription factors were responsible not only for red light signaling through the phytochromes but also for blue light signaling in the photomorphogenic control of hypocotyl elongation. …
Bioscience, biotechnology, and biochemistry 72(6), 1539-1549, 2008-06-23
… In this study, a small subfamily of double B-box zinc finger (DBB, DOUBLE B-BOX) genes, encoding eight putative transcription factors, were characterized with reference to the circadian rhythm and the early photomorphogenic regulation of hypocotyl elongation in response to light signals. …
In developmental biology, photomorphogenesis is light-mediated development. The photomorphogenesis of plants is often studied by using tightly-frequency- controlled light sources to grow the plants. ...