Results 41 to 50 of about 4,111 (191)

Suppression of Phytochrome-Interacting Factors Enhances Photoresponses of Seedlings and Delays Flowering With Increased Plant Height in Brachypodium distachyon

open access: yesFrontiers in Plant Science, 2021
Phytochromes are red and far-red photoreceptors that regulate plant growth and development under ambient light conditions. During phytochrome-mediated photomorphogenesis, phytochrome-interacting factors (PIFs) are the most important signaling partners ...
Quyen T. N. Hoang   +8 more
doaj   +1 more source

Natural Variation of COLD and CATECHINS REGULATOR 1 Coordinately Fine‐Tunes Cold Tolerance and Tea Quality in Tea Plants

open access: yesAdvanced Science, EarlyView.
Multi‐trait genome‐wide association mapping identifies a central hub regulator, COLD AND CATECHINS REGULATOR 1 (CCR1), and its excellent natural allele variation, coordinately enhancing cold tolerance and promoting catechins biosyntheis. CsCCR1 interacts with CsCBF1/3 and is transcriptionally activated by CsLUX and CsKUA1 to promote catechins ...
Yanli Wang   +10 more
wiley   +1 more source

Upregulation of GLRs expression by light in Arabidopsis leaves

open access: yesBMC Plant Biology, 2022
Background Glutamate receptor-like (GLR) channels are plant homologs of iGluRs, animal ionotropic glutamate receptors which participate in neurotransmission. GLRs mediate plant adaptive processes and photomorphogenesis.
Anna Hebda   +5 more
doaj   +1 more source

Mehrfarbige und lichtintensitätsabgeschwächte Reaktionen von Proteinhydrogelen durch Photoregulierte Vernetzungsdynamik

open access: yesAngewandte Chemie, EarlyView.
In ein vollständig auf Proteinen basierendes Hydrogel wurden zwei orthogonale Photorezeptoren integriert, um die reversible Manipulation der Steifigkeit durch rotes/fernrotes Licht und den irreversiblen Gel‐Sol‐Übergang durch grünes Licht zu ermöglichen.
Saskia Frank, Seraphine V. Wegner
wiley   +1 more source

Opto-CD28-REACT: optogenetic co-stimulatory receptor activation on non-engineered human T cells

open access: yesFrontiers in Immunology
T-cell activation is a highly regulated process requiring both antigen recognition via the T-cell receptor (TCR) and co-stimulatory signaling, notably through the co-stimulatory receptor CD28. Here, we introduce an optogenetic platform for reversible and
Anna K. Ehret   +24 more
doaj   +1 more source

Multicolor and Attenuated Light Intensity Responses in Protein Hydrogels Arising from Photoregulated Crosslink Dynamics

open access: yesAngewandte Chemie International Edition, EarlyView.
A fully protein‐based hydrogel integrated two orthogonal photoreceptors to enable reversible manipulation of stiffness with red/far‐red light and irreversible gel‐sol transitions with green light. Unexpectedly, high‐intensity red light results in attenuated stiffening and dark‐adaptation, arising from increased crosslinking dynamics in the ...
Saskia Frank, Seraphine V. Wegner
wiley   +1 more source

Immunocytochemical Localization of Phytochrome [PDF]

open access: yesProceedings of the National Academy of Sciences, 1971
An immunocytochemical assay, which localizes phytochrome in situ , indicates that this plant chromoprotein is associated with both nuclei and plastids, in addition to the cytoplasm. In an etiolated oat shoot, phytochrome is most abundant just behind the apex of the coleoptile, where it is associated with parenchyma ...
L H, Pratt, R A, Coleman
openaire   +2 more sources

Protein control of photochemistry and transient intermediates in phytochromes

open access: yesNature Communications, 2022
Phytochromes are photoreceptors responsible for sensing light in plants, fungi and bacteria. Here the authors use computational simulations to reveal the molecular mechanism of photoactivation and characterize the involved reaction intermediates.
Giacomo Salvadori   +5 more
doaj   +1 more source

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

Light and gravity signals synergize in modulating plant development

open access: yesFrontiers in Plant Science, 2014
Tropisms are growth-mediated plant movements that help plants to respond to changes in environmental stimuli. The availability of water and light, as well as the presence of a constant gravity vector, are all environmental stimuli that plants sense and ...
Joshua P. Vandenbrink   +3 more
doaj   +1 more source

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