Results 71 to 80 of about 8,445 (197)

Light-dependent magnetoreception in birds : increasing intensity of monochromatic light changes the nature of the response [PDF]

open access: yes, 2007
Background The Radical Pair model proposes that magnetoreception is a light-dependent process. Under low monochromatic light from the short-wavelength part of the visual spectrum, migratory birds show orientation in their migratory direction.
Wiltschko, Roswitha   +3 more
core   +3 more sources

EVOLUTION OF THE CIRCADIAN CLOCK IN EXTREME ENVIRONMENT: LESSONS FROM CAVEFISH. [PDF]

open access: yes, 2010
Evolution has been strongly influenced by the daily cycles of temperature and light imposed by the rotation of the Earth. Fascinating demonstrations of this are seen in extreme environments such as caves where some animals have remained completely ...
Cavallari, Nicola
core  

Shade Promotes Phototropism through Phytochrome B-Controlled Auxin Production. [PDF]

open access: yes, 2016
Phototropism is an asymmetric growth response enabling plants to optimally position their organs. In flowering plants, the phototropin (phot) blue light receptors are essential to detect light gradients.
Casal, J.J.   +5 more
core   +1 more source

Beyond red/far‐red sensing: phytochrome perception of the marine light field by microalgae

open access: yesNew Phytologist, EarlyView.
Summary Phytochromes (PHYs) are a major group of photoreceptors, described as red and far‐red light sensors in land plants. Recent genomic and metagenomic explorations have revealed the presence of PHYs also in various eukaryotic microalgae originating from distinct endosymbiotic events.
Carole Duchêne   +2 more
wiley   +1 more source

Interactions of drosophila cryptochrome

open access: yesPhotochemistry and Photobiology
AbstractIn this study, we investigate the intricate regulatory mechanisms underlying the circadian clock in Drosophila, focusing on the light‐induced conformational changes in the cryptochrome (DmCry). Upon light exposure, DmCry undergoes conformational changes that prompt its binding to Timeless and Jetlag proteins, initiating a cascade crucial for ...
Gozde Ozcelik   +8 more
openaire   +3 more sources

Structure of full-length Drosophila cryptochrome [PDF]

open access: yesNature, 2011
The cryptochrome/photolyase (CRY/PL) family of photoreceptors mediates adaptive responses to ultraviolet and blue light exposure in all kingdoms of life. Whereas PLs function predominantly in DNA repair of cyclobutane pyrimidine dimers (CPDs) and 6-4 photolesions caused by ultraviolet radiation, CRYs transduce signals important for growth, development,
Zoltowski, Brian D.   +5 more
openaire   +2 more sources

Cryptochrome-Related Abiotic Stress Responses in Plants

open access: yesFrontiers in Plant Science, 2018
It is well known that light is a crucial environmental factor that has a fundamental role in plant growth and development from seed germination to fruiting.
Victor D’Amico-Damião   +1 more
doaj   +1 more source

Cryptochrome-mediated blue-light signal contributes to carotenoids biosynthesis in microalgae

open access: yesFrontiers in Microbiology, 2022
Microalgae are considered as ideal cell factories for producing natural carotenoids which display favorable biological activities. As the most important abiotic factor, light not only provides energy for photosynthetic metabolism, but also regulates ...
Zhongyi Zhang   +4 more
doaj   +1 more source

Shadow on the Plant: A Strategy to Exit. [PDF]

open access: yes, 2016
The light spectrum perceived by plants is affected by crowding, which results in the shade avoidance syndrome (SAS). Findings presented by Pedmale et al.
Batschauer, A., Fankhauser, C.
core   +1 more source

LsMAPK6 Phosphorylates the LsCO Protein to Enhance Its Stability and Transcriptional Activity, Promoting Floral Transition Upon High Temperatures in Lettuce

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT High temperatures significantly accelerate the timing of floral transition, namely, bolting and flowering, in lettuce, which results in severe loss of marketable yield. Thus, understanding the genetic regulation of floral transition is of great interest to plant biologists and lettuce breeders.
Tingzhen Wang   +10 more
wiley   +1 more source

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