A5013548006- Light effects on plants
- Plant Molecular Biology Research
- Photosynthetic Processes and Mechanisms
- Plant nutrient uptake and metabolism
- Plant and Biological Electrophysiology Studies
University of Freiburg
2019-2023
Summary Phytochrome B (phyB) is an excellent light quality and quantity sensor that can detect subtle changes in the environment. The relative amounts of biologically active photoreceptor (phyB Pfr) are determined by conditions independent thermal relaxation Pfr into inactive phyB Pr, termed reversion. Little known about regulation reversion how it affects plants’ sensitivity. In this study we identified several serine/threonine residues on N‐terminal extension (NTE) Arabidopsis thaliana...
Phytochromes are photoreceptors regulating growth and development in plants. Using the model plant Arabidopsis, we identified a novel signalling pathway downstream of far-red light-sensing phytochrome, phyA, that depends on highly conserved CCR4-NOT complex. is integral to RNA metabolism yeast animals, but its function plants largely unknown. NOT9B, an Arabidopsis homologue human CNOT9, component complex, acts as negative regulator phyA-specific light when bound NOT1, scaffold protein...
Summary Daylength is a key seasonal cue for animals and plants. In cereals, photoperiodic responses are major adaptive trait, alleles of clock genes such as PHOTOPERIOD DEPENDENT1 (PPD1) EARLY FLOWERING3 (ELF3) have been selected in breeding barley wheat more northern latitudes (Faure et al., 2012; Turner, Beales, Faure, Dunford, & Laurie, 2005). How monocot plants sense photoperiod integrate this information into growth development not well understood. We show that Brachypodium...
Daylength is a key seasonal cue for animals and plants. In cereals, photoperiodic responses are major adaptive trait, alleles of clock genes such as PHOTOPERIOD1 (PPD1) EARLY FLOWERING3 (ELF3) have been selected in adapting barley wheat to northern latitudes. How monocot plants sense photoperiod integrate this information into growth development not well understood.We find that phytochrome C (PHYC) essential flowering Brachypodium distachyon. Conversely, ELF3 acts floral repressor elf3...
The phytochrome (phy) system enables plants to adapt canopy shade. By sensing the reduction of red:far-red light ratio in shade, phyA and phyB trigger downstream signalling cascades which eventually lead enhanced elongation growth. In this study, we show that F-box protein EID1 takes on an essential function within shade avoidance response Arabidopsis thaliana by repressing action thereby allowing seedlings elongate Thus, altering activity provides a means without affecting could have played...