Results 41 to 50 of about 19,473 (219)

Identification of photoperception and light signal transduction pathways in citrus

open access: yesGenetics and Molecular Biology, 2007
Studies employing model species have elucidated several aspects of photoperception and light signal transduction that control plant development. However, the information available for economically important crops is scarce.
Vera Quecini
doaj   +1 more source

Temperature, light and nitrate sensing coordinate Arabidopsis seed dormancy cycling resulting in winter and summer annual phenotypes [PDF]

open access: yes, 2013
Seeds use environmental cues to sense the seasons and their surroundings to initiate the plants life cycle. Dormancy cycling underlying this process is extensively described, but the molecular mechanism is largely unknown.
Clay, Heather A.   +4 more
core   +1 more source

PCH1 integrates circadian and light-signaling pathways to control photoperiod-responsive growth in Arabidopsis

open access: yeseLife, 2016
Plants react to seasonal change in day length through altering physiology and development. Factors that function to harmonize growth with photoperiod are poorly understood.
He Huang   +9 more
doaj   +1 more source

Phytochrome A Mediates the Disassembly of Processing Bodies in Far-Red Light

open access: yesFrontiers in Plant Science, 2022
Phytochromes are red- and far-red light receptors that control the growth and development of plants, enabling them to respond adequately to changing light conditions. It has been shown that halted mRNAs stored in RNA granules called processing bodies are
Philipp Schwenk   +3 more
doaj   +1 more source

Synthetic Toll‐Like Receptors for Control of Innate Immunity With Far‐Red Light

open access: yesAdvanced Science, EarlyView.
Synthetic Toll‐like receptors (TLRs) are engineered by replacing their natural sensing regions with a far‐red‐light‐responsive module from a bacterial phytochrome. These synthetic receptors enable light‐controlled regulation of immune signaling in mammalian cells.
Anna V. Leopold, Vladislav V. Verkhusha
wiley   +1 more source

Studies on phytochrome. Some properties of electrophoretically pure phytochrome [PDF]

open access: yesBiochemical Journal, 1970
1. Phytochrome was purified from etiolated oat (Avena sativa) seedlings either by gel-filtration chromatography and ion-exchange chromatography or by gel-filtration chromatography and calcium phosphate chromatography. Differences were observed in the spectral properties of phytochrome isolated by the two methods. 2.
T S, Walker, J L, Bailey
openaire   +2 more sources

Chlorophyll formation and phytochrome [PDF]

open access: yes, 1973
The rôle of phytochrome in the regeneration of protochlorophyll (Pchl) in darkness following short exposures to light, as well as in the accumulation of chlorophyll- a (Chl- a ) in continuous light in previously dark-grown seedlings of pea, bean, and ...
Raven, C.W.
core  

Dawn and photoperiod sensing by phytochrome A [PDF]

open access: yes, 2018
In plants, light receptors play a pivotal role in photoperiod sensing, enabling them to track seasonal progression. Photoperiod sensing arises from an interaction between the plant's endogenous circadian oscillator and external light cues.
Imaizumi, T.   +6 more
core   +1 more source

A Hydrogen Bond Between Linear Tetrapyrrole and Conserved Aspartate Causes the Far-Red Shifted Absorption of Phytochrome Photoreceptors [PDF]

open access: yes, 2020
Photoswitching of phytochrome photoreceptors between red-absorbing (Pr) and far-red absorbing (Pfr) states triggers light adaptation of plants, bacteria and other organisms. Using quantum chemistry, we elucidate the color-tuning mechanism of phytochromes
Tatiana, Domratcheva, Egle, Maximowitsch
core   +2 more sources

Phytochrome activates the plastid-encoded RNA polymerase for chloroplast biogenesis via nucleus-to-plastid signaling

open access: yesNature Communications, 2019
Light initiates chloroplast biogenesis by controlling gene expression in plastids. Here Yoo et al. show that nuclear phytochrome signaling triggers plastid gene expression via a novel dual-localized protein necessary for nuclear phytochrome signaling and
Chan Yul Yoo   +6 more
doaj   +1 more source

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