Results 31 to 40 of about 31,068 (228)

Phytochrome A mediates blue-light enhancement of second-positive phototropism in Arabidopsis [PDF]

open access: yes, 2016
Hypocotyl phototropism of etiolated Arabidopsis seedlings is primarily mediated by the blue-light receptor kinase phototropin 1 (phot1). Phot1-mediated curvature to continuous unilateral blue light irradiation (0.5 µmol m-2 s-1) is enhanced by overhead ...
Christie, John   +4 more
core   +2 more sources

The heterotrimeric G-protein complex modulates light sensitivity in arabidopsis thaliana seed germination [PDF]

open access: yes, 2009
Release of dormancy and induction of seed germination are complex traits finely regulated by hormonal signals and environmental cues such as temperature and light.
Benech-Arnold   +39 more
core   +2 more sources

Phytochrome Immunoaffinity Purification [PDF]

open access: yesPlant Physiology, 1979
We have developed a phytochrome immunoaffinity purification procedure that yields undegraded oat (Avena sativa L., cv. Garry) phytochrome of greater than 98% purity within 2 hours when starting with a brushite-purified preparation. Immunoaffinity-purified phytochrome, except for its greater purity, is indistinguishable from conventionally purified ...
R E, Hunt, L H, Pratt
openaire   +2 more sources

Biliproteins [PDF]

open access: yes, 1981
Biliproteins, covalently bonded complexes of proteins and bile pigments, serve as light-harvesting pigments in photosynthesis and light-sensory pigments of photosynthetic organisms. Recent developments in the biochemistry and biophysics of these pigments
Scheer, Hugo
core   +1 more source

slim shady is a novel allele of PHYTOCHROME B present in the T‐DNA line SALK_015201

open access: yesPlant Direct, 2021
Auxin is a hormone that is required for hypocotyl elongation during seedling development. In response to auxin, rapid changes in transcript and protein abundance occur in hypocotyls, and some auxin responsive gene expression is linked to hypocotyl growth.
Linkan Dash   +6 more
doaj   +1 more source

ZINC-FINGER interactions mediate transcriptional regulation of hypocotyl growth in Arabidopsis [PDF]

open access: yes, 2018
Integration of environmental signals and interactions among photoreceptors and transcriptional regulators is key in shaping plant development. TANDEM ZINC-FINGER PLUS3 (TZP) is an integrator of light and photoperiodic signaling that promotes flowering in
Breton, Ghislain   +9 more
core   +1 more source

STUDIES ON PLANT BILE PIGMENTS-6. PHOTOCHEMICALLY ASSISTED REACTION OF A-DIHYDROBILINDIONE WITH NUCLEOPHILES AS A MODEL FOR PHYTOCHROME INTERCONVERSION [PDF]

open access: yes, 1979
From the A-dihydrobilindione 3. the pyridinium derivatives 6a,b and analogues thereof have been obtained by a formal nucleophilic substitution. The reaction is rationalized as a photochemically assisted oxidation of 3 with a subsequent regioselective ...
Bubenzer, C.   +2 more
core   +1 more source

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

Arogenate dehydratases: unique roles in light-directed development during the seed-to-seedling transition in Arabidopsis thaliana

open access: yesFrontiers in Plant Science, 2023
The seed-to-seedling transition is impacted by changes in nutrient availability and light profiles, but is still poorly understood. Phenylalanine affects early seedling development; thus, the roles of arogenate dehydratases (ADTs), which catalyze ...
DurreShahwar Muhammad   +9 more
doaj   +1 more source

Phytochrome Signaling Mechanisms [PDF]

open access: yesThe Arabidopsis Book, 2011
Phytochromes are red (R)/far-red (FR) light photoreceptors that play fundamental roles in photoperception of the light environment and the subsequent adaptation of plant growth and development. There are five distinct phytochromes in Arabidopsis thaliana, designated phytochrome A (phyA) to phyE.
Jigang, Li   +3 more
openaire   +2 more sources

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