Results 31 to 40 of about 6,466 (229)
Light-dependent magnetoreception in birds : increasing intensity of monochromatic light changes the nature of the response [PDF]
, 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
Animals, 2020 In a previous study, the agamid lizard Pogona vitticeps was discovered to respond to an electromagnetic field (EMF) of extremely low frequency (6 and 8 Hz; peak magnetic and electric fields of 2.6 µT and 10 V/m, respectively).
Tsutomu Nishimura
doaj +1 more source
The magnetite-based receptors in the beak of birds and their role in avian navigation [PDF]
, 2012 Iron-rich structures have been described in the beak of homing pigeons, chickens and several species of migratory birds and interpreted as magnetoreceptors.
Wiltschko, Roswitha, Wiltschko, Wolfgang
core +1 more source
Cryptochromes in mammals: a magnetoreception misconception?
Frontiers in Physiology, 2023 Cryptochromes are flavoproteins related to photolyases that are widespread throughout the plant and animal kingdom. They govern blue light-dependent growth in plants, control circadian rhythms in a light-dependent manner in invertebrates, and play a ...
Li Zhang +3 more
semanticscholar +1 more source
Magnetoreception in fish [PDF]
Journal of Fish Biology, 2019 AbstractMagnetoreception is the ability of organisms to perceive magnetic fields in the surrounding environment and changes in its properties such as field direction, intensity and gradient, where the effect on organisms can manifest as an array of reactions.
Krzysztof Formicki +2 more
openaire +2 more sources
Direct Interaction of Avian Cryptochrome 4 with a Cone Specific G-Protein
Cells, 2022 Background: Night-migratory birds sense the Earth’s magnetic field by an unknown molecular mechanism. Theoretical and experimental evidence support the hypothesis that the light-induced formation of a radical-pair in European robin cryptochrome 4a ...
Katharina Görtemaker +11 more
doaj +1 more source
The Radical-Pair Mechanism of Magnetoreception. [PDF]
Annual Review of Biophysics, 2016 Although it has been known for almost half a century that migratory birds can detect the direction of the Earth's magnetic field, the primary sensory mechanism behind this remarkable feat is still unclear. The leading hypothesis centers on radical pairs—magnetically sensitive chemical intermediates formed by photoexcitation of cryptochrome proteins in ...
P. Hore, H. Mouritsen
semanticscholar +3 more sources
Upper bound on the biological effects of 50/60 Hz magnetic fields mediated by radical pairs
eLife, 2019 Prolonged exposure to weak (~1 μT) extremely-low-frequency (ELF, 50/60 Hz) magnetic fields has been associated with an increased risk of childhood leukaemia.
PJ Hore
doaj +1 more source
Driven Radical Motion Enhances Cryptochrome Magnetoreception: Toward Live Quantum Sensing [PDF]
Journal of Physical Chemistry Letters, 2022 The mechanism underlying magnetoreception has long eluded explanation. A popular hypothesis attributes this sense to the quantum coherent spin dynamics and spin-selective recombination reactions of radical pairs in the protein cryptochrome.
Luke D Smith +4 more
semanticscholar +1 more source
Magnetosome Gene Duplication as an Important Driver in the Evolution of Magnetotaxis in the Alphaproteobacteria [PDF]
, 2019 The evolution of microbial magnetoreception (or magnetotaxis) is of great interest in the fields of microbiology, evolutionary biology, biophysics, geomicrobiology, and geochemistry.
Bazylinski, Dennis A. +9 more
core +4 more sources