Results 21 to 30 of about 5,743 (224)

Magnetoreception in Microorganisms [PDF]

open access: yesTrends in Microbiology, 2020
Magnetoreception is the sense whereby organisms geolocate and navigate in response to the Earth's magnetic field lines. For decades, magnetotactic bacteria have been the only known magnetoreceptive microorganisms. The magnetotactic behaviour of these aquatic prokaryotes is due to the biomineralization of magnetic crystals.
Monteil, Caroline, Lefèvre, Christopher
openaire   +3 more sources

C. elegans is not a robust model organism for the magnetic sense

open access: yesCommunications Biology, 2023
Attempts to replicate studies proposing a magnetoreceptive capacity of C. elegans were unsuccessful, suggesting it is not a suitable organism for the study of the magnetic sense.
Erich Pascal Malkemper   +6 more
doaj   +1 more source

Biological Effects of Space Hypomagnetic Environment on Circadian Rhythm

open access: yesFrontiers in Physiology, 2021
The intrinsic earth magnetic field (geomagnetic field, GMF) provides an essential environmental condition for most living organisms to adapt the solar cycle by rhythmically synchronizing physiological and behavioral processes. However, hypomagnetic field
Xunwen Xue   +12 more
doaj   +1 more source

Biological effects of the hypomagnetic field: An analytical review of experiments and theories. [PDF]

open access: yesPLoS ONE, 2017
During interplanetary flights in the near future, a human organism will be exposed to prolonged periods of a hypomagnetic field that is 10,000 times weaker than that of Earth's.
Vladimir N Binhi, Frank S Prato
doaj   +1 more source

Research Note: Retinal cryptochrome gene expression is not altered by presence of light in incubators

open access: yesPoultry Science, 2023
: Cryptochromes are blue-, or ultraviolet-, light-absorbing proteins involved in the circadian clock, blue/ultraviolet light perception and potentially magnetoreception. At least 4 separate cryptochrome genes have been identified in avian species.
P.D. Rivera, G.S. Fraley
doaj   +1 more source

An assay to investigate factors influencing initial orientation in nocturnally fledging seabirds

open access: yesJournal of Avian Biology, 2021
The first solitary migration of juvenile birds is difficult to study because of a low juvenile survival rates and sometimes long delays in return to the breeding grounds.
Martyna Syposz   +5 more
doaj   +1 more source

Direct Interaction of Avian Cryptochrome 4 with a Cone Specific G-Protein

open access: yesCells, 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

Magnetic alignment enhances homing efficiency of hunting dogs

open access: yeseLife, 2020
Despite anecdotal reports of the astonishing homing abilities in dogs, their homing strategies are not fully understood. We equipped 27 hunting dogs with GPS collars and action cams, let them freely roam in forested areas, and analyzed components of ...
Kateřina Benediktová   +9 more
doaj   +1 more source

Multi-modal imaging and analysis in the search for iron-based magnetoreceptors in the honeybee Apis mellifera [PDF]

open access: yesRoyal Society Open Science, 2018
The honeybee Apis mellifera is one of many animal species for which empirical evidence of a magnetic sense has been provided. The underlying mechanisms postulated for magnetoreception in bees are varied, but most point towards the abdomen as the most ...
Jeremy A. Shaw   +4 more
doaj   +1 more source

In Search for the Avian Trigeminal Magnetic Sensor: Distribution of Peripheral and Central Terminals of Ophthalmic Sensory Neurons in the Night-Migratory Eurasian Blackcap (Sylvia atricapilla)

open access: yesFrontiers in Neuroanatomy, 2022
In night-migratory songbirds, neurobiological and behavioral evidence suggest the existence of a magnetic sense associated with the ophthalmic branch of the trigeminal nerve (V1), possibly providing magnetic positional information. Curiously, neither the
Katrin Haase   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy