Results 21 to 30 of about 4,018 (189)

Supplemental blue and red light promote lycopene synthesis in tomato fruits

open access: yesJournal of Integrative Agriculture, 2019
Lycopene, one of the strongest natural antioxidants known and the main carotene in ripe tomato, is very important for human health. Light is well known to be one of the most important environmental stimuli influencing lycopene biosynthesis; specifically,
Bao-xing XIE   +7 more
doaj   +1 more source

Protein Kinase Activity of Phytochrome A Positively Correlates With Photoresponses in Arabidopsis

open access: yesFrontiers in Plant Science, 2021
Plant phytochromes are known as autophosphorylating serine/threonine protein kinases. However, the functional importance of their kinase activity is not fully elucidated.
Quyen T. N. Hoang   +7 more
doaj   +1 more source

The Fast-Evolving phy-2 Gene Modulates Sexual Development in Response to Light in the Model Fungus Neurospora crassa

open access: yesmBio, 2016
Rapid responses to changes in incident light are critical to the guidance of behavior and development in most species. Phytochrome light receptors in particular play key roles in bacterial physiology and plant development, but their functions and ...
Zheng Wang   +5 more
doaj   +1 more source

Light and temperature receptors and their convergence in plants

open access: yesBiologia Plantarum, 2020
Light and temperature are two essential environmental cues for plants, helping to optimize plant body architecture and physiology. To sense a broad spectrum of sun radiation spanning from UV-B to far-red wavelength, plants are equipped with a ...
J. SONG, W. WU, B. HU
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

Underground roots monitor aboveground environment by sensing stem-piped light

open access: yesCommunicative & Integrative Biology, 2016
Light is a critical environmental cue for plant growth and development. Plants actively monitor surrounding environments by sensing changes in light wavelength and intensity.
Hyo-Jun Lee, Jun-Ho Ha, Chung-Mo Park
doaj   +1 more source

Conformational heterogeneity of the Pfr chromophore in plant and cyanobacterial phytochromes

open access: yesFrontiers in Molecular Biosciences, 2015
Phytochromes are biological photoreceptors that can be reversibly photoconverted between a dark and photoactivated state. The underlying reaction sequences are initiated by the photoisomerisation of the tetrapyrrole cofactor, which in plant and ...
Francisco eVelazquez Escobar   +13 more
doaj   +1 more source

Cryo-Electron Microscopy of Arabidopsis thaliana Phytochrome A in Its Pr State Reveals Head-to-Head Homodimeric Architecture

open access: yesFrontiers in Plant Science, 2021
Phytochrome photoreceptors regulate vital adaptations of plant development, growth, and physiology depending on the ratio of red and far-red light.
Weixiao Yuan Wahlgren   +5 more
doaj   +1 more source

The primary structural photoresponse of phytochrome proteins captured by a femtosecond X-ray laser

open access: yeseLife, 2020
Phytochrome proteins control the growth, reproduction, and photosynthesis of plants, fungi, and bacteria. Light is detected by a bilin cofactor, but it remains elusive how this leads to activation of the protein through structural changes.
Elin Claesson   +29 more
doaj   +1 more source

Vibrational Spectroscopy of Phytochromes

open access: yesBiomolecules, 2023
Phytochromes are biological photoswitches that translate light into physiological functions. Spectroscopic techniques are essential tools for molecular research into these photoreceptors.
Peter Hildebrandt
doaj   +1 more source

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