Results 41 to 50 of about 19,101 (227)
Regulation and Identity of Florigen: Flowering Locus T Moves Center Stage [PDF]
, 2008 The transition from vegetative to reproductive growth is controlled by day length in many plant species. Day length is perceived in leaves and induces a systemic signal, called florigen, that moves through the phloem to the shoot apex.
Borden KL +11 more
core +2 more sources
Vertebrate Cryptochromes are Vestigial Flavoproteins [PDF]
Scientific Reports, 2017 AbstractAll cryptochromes are currently classified as flavoproteins. In animals their best-described role is as components of the circadian clock. This circadian function is variable, and can be either light-dependent or -independent; the molecular origin of this difference is unknown.
Kutta, Roger +4 more
openaire +3 more sources
Chronobiotics KL001 and KS15 Extend Lifespan and Modify Circadian Rhythms of Drosophila melanogaster
Clocks & Sleep, 2021 Chronobiotics are a group of drugs, which are utilized to modify circadian rhythms targeting clock-associated molecular mechanisms. The circadian clock is known as a controller of numerous processes in connection with aging.
Ilya A. Solovev +2 more
doaj +1 more source
Identification of medaka magnetoreceptor and cryptochromes [PDF]
Science China Life Sciences, 2016 Magnetoreception is a hallmark ability of animals for orientation and migration via sensing and utilizing geomagnetic fields. Magnetoreceptor (MagR) and cryptochromes (Cry) have recently been identified as the basis for magnetoreception in Drosophila. However, it has remained unknown whether MagR and Cry have conserved roles in diverse animals. Here we
Wang, Yunzhi +3 more
openaire +2 more sources
Frontiers in Physiology, 2020 Irises isolated from the eyes of diverse species constrict when exposed to light. Depending on species this intrinsic photomechanical transduction response (PMTR) requires either melanopsin or cryptochrome (CRY) photopigment proteins, generated by their ...
Joseph F. Margiotta, Marthe J. Howard
doaj +1 more source
Circadian rhythms and circadian clock gene homologs of complex alga Chromera velia
Frontiers in Plant Science, 2023 Most organisms on Earth are affected by periodic changes in their environment. The circadian clock is an endogenous device that synchronizes behavior, physiology, or biochemical processes to an approximately 24-hour cycle, allowing organisms to ...
Jitka Richtová +10 more
doaj +1 more source
Action Spectrum of Drosophila Cryptochrome [PDF]
Journal of Biological Chemistry, 2007 Cryptochromes are a highly conserved class of UV-A/blue light photoreceptors. In Drosophila, cryptochrome is required for the normal entrainment of circadian rhythms to light dark cycles. The photocycle and molecular mechanism of animal cryptochrome photoreception are presently unknown. Drosophila cryptochrome undergoes light-dependent degradation when
Sarah J, VanVickle-Chavez +1 more
openaire +2 more sources
Interaction of two photoreceptors in the regulation of bacterial photosynthesis genes [PDF]
, 2012 The expression of photosynthesis genes in the facultatively photosynthetic bacterium Rhodobacter sphaeroides is controlled by the oxygen tension and by light quantity. Two photoreceptor proteins, AppA and CryB, have been identified in the past, which are
Frühwirth, Sebastian +5 more
core +1 more source
Frontiers in Ecology and Evolution, 2022 Cryptochromes are evolutionary ancient blue-light photoreceptors that are part of the circadian clock in the nervous system of many organisms. Cryptochromes transfer information of the predominant light regime to the clock which results in the fast ...
Ricarda Cremer +2 more
doaj +1 more source
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