Results 11 to 20 of about 12,799 (205)

Phytochromes and Phytochrome Interacting Factors [PDF]

open access: yesPlant Physiology, 2017
The basic helix-loop-helix domain-containing transcription factors that interact physically with the red and far-red light photoreceptors, phytochromes, are called PHYTOCHROME INTERACTING FACTORS (PIFs). In the last two decades, the phytochrome-PIF signaling module has been shown to be conserved from Physcomitrella patens to higher plants.
Vinh Ngoc Pham   +2 more
openaire   +2 more sources

Phytochrome Radioimmunoassay [PDF]

open access: yesPlant Physiology, 1979
A phytochrome radioimmunoassay with a detection limit of about 2 nanograms has been developed. The radioimmunoassay does not suffer from the potential drawbacks of the commonly used spectral assay and requires less than 1 microliter of crude extract from dark-grown plants for quantitation of phytochrome.
R E, Hunt, L H, Pratt
openaire   +2 more sources

Immunochemistry of Phytochrome [PDF]

open access: yesPlant Physiology, 1973
Rabbit antibody was elicited against purified oat phytochrome polypeptides. Immunodiffusion and immunoelectrophoresis indicated the antibody elicited was predominantly a single precipitin system. No antigenic difference was detected between red-absorbing phytochrome and far red-absorbing phytochrome.
H V, Rice, W R, Briggs
openaire   +2 more sources

The Chromophore of Phytochrome [PDF]

open access: yesPlant Physiology, 1966
The chromophore of phytochrome, the plant photomorphogenic pigment, was cleaved from the associated protein. Chromatographic and spectral properties indicated that it was a bilitriene closely similar to but distinct from the chromophore of C-phycocyanin and allophycocyanin.
H W, Siegelman   +2 more
openaire   +2 more sources

Cucumber leaf necrosis caused by radiation with abrupt increase of far-red component

open access: yesBiologia Plantarum, 2023
Plants exhibit morphological plasticity in response to changes in the proportion of far-red radiation (FR). However, little is known about the response to a sudden increase of FR component. Cucumber seedlings were acclimatized to radiation without FR (FR-
T. SHIBUYA   +7 more
doaj   +1 more source

Influence of growth regulators and respiration inhibitors on dark transformation of phytochrome in coleoptiles of oat seedlings

open access: yesActa Societatis Botanicorum Poloniae, 2014
Irradiation with red light leads to the formation of an unstable, undergoing gradual destruction, physiologically active PFR form of phytochrome in the coleoptiles of oat seedlings.
Jan Kopcewicz   +2 more
doaj   +1 more source

Comparative analysis of two phytochrome mutants of tomato (Micro-Tom cv.) reveals specific physiological, biochemical, and molecular responses under chilling stress

open access: yesJournal of Genetic Engineering and Biotechnology, 2020
Background Phytochromes are plant photoreceptors that have long been associated with photomorphogenesis in plants; however, more recently, their crucial role in the regulation of variety of abiotic stresses has been explored.
Raheel Shahzad   +8 more
doaj   +1 more source

Participation of labile and stabile phytochrome in the control of chlorophyll accumulation during the deetiolation of oat seedlings

open access: yesActa Societatis Botanicorum Poloniae, 2014
The effect of the phytochrome system on the accumulation rate of chlorophyll-a and b in 96-hour-old oat seedlings during the first 3 hours of white light action was investigated.
Mariusz Cymerski, Jan Kopcewicz
doaj   +1 more source

Far-red Fraction: An Improved Metric for Characterizing Phytochrome Effects on Morphology

open access: yesJournal of the American Society for Horticultural Science, 2020
Phytochrome, a well-studied photoreceptor in plants, primarily absorbs in the red (R) and far-red (FR) regions and is responsible for the perception of shade and subsequent morphological responses.
Paul Kusuma, Bruce Bugbee
doaj   +1 more source

Fusarium Photoreceptors

open access: yesJournal of Fungi, 2023
Light is an important modulating signal in fungi. Fusarium species stand out as research models for their phytopathogenic activity and their complex secondary metabolism.
Javier Pardo-Medina   +2 more
doaj   +1 more source

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