Results 1 to 10 of about 58,594 (235)
Neural mechanism of circadian clock-based photoperiodism in insects and snails. [PDF]
J Comp Physiol A Neuroethol Sens Neural Behav Physiol, 2023 The photoperiodic mechanism distinguishes between long and short days, and the circadian clock system is involved in this process. Although the necessity of circadian clock genes for photoperiodic responses has been demonstrated in many species, how the ...
Hamanaka Y, Hasebe M, Shiga S.
europepmc +2 more sources
Seasonality and Photoperiodism in Fungi [PDF]
Journal of Biological Rhythms, 2001 This review gives a retrospective of what is known about photoperiodism in fungi, which is largely based on reports about seasonal spore concentrations. Relatively few species have been investigated under laboratory conditions, so that our knowledge whether seasonal reproduction in fungi is mainly a direct response to environmental conditions or ...
Martha Merrow, Till Roenneberg
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Variation in photoperiod response corresponds to differences in circadian light sensitivity in northern and southern Nasonia vitripennis lines [PDF]
J Comp Physiol A Neuroethol Sens Neural Behav Physiol, 2023 The circadian clock times physiological and behavioural processes and resets on a daily basis to synchronize with the environment. The involvement of the circadian clock in photoperiodic time measurement synchronising annual rhythms is still under debate
Beersma, Domien G.M. +3 more
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Photoperiodism and Circadian Rhythms [PDF]
Cold Spring Harbor Symposia on Quantitative Biology, 1960 K. C. Hamner
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The effect of photoperiodism on nutritional potency of Euglena sp. Indonesian strains
Malaysian journal of nutrition, 2023 Introduction: Biomass microalgae functional materials, such as drugs and food supplements, have recently received much attention. Euglena sp. is a particularly appealing microalgae because of its simplicity of culture and capacity to produce a wide range
K. Q. Maghfiroh +9 more
semanticscholar +1 more source
New Horizons in Plant Photoperiodism
Annual Review of Plant Biology, 2022 Photoperiod-measuring mechanisms allow organisms to anticipate seasonal changes to align reproduction and growth with appropriate times of the year. This review provides historical and modern context to studies of plant photoperiodism.
Joshua M. Gendron, D. Staiger
semanticscholar +1 more source
Photoperiodic time measurement, photoreception, and circadian clocks in insect photoperiodism
Applied Entomology and Zoology, 2022 Photoperiodism is an adaptive response used by organisms to assess day length and anticipate upcoming seasons and to coordinate their (or their offspring’s) development and physiology with the environmental changes.
S. Goto
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Insect photoperiodism: Bunning's hypothesis, the history and development of an idea
, 2021 In insects, the photoperiodic system comprises a linked sequence of events from photoreception to fi nal seasonallyappropriate phenotypes such as overwintering diapause. The fi rst and last of these events are reasonably well known, but central phenomena
D. Saunders
semanticscholar +1 more source
The Molecular Basis of Photoperiodism [PDF]
Developmental Cell, 2002 A recent study has demonstrated that an external coincidence mechanism, based on the endogenous circadian control of a transcription factor expression (CO) and the modulation of CO function by light, constitutes the molecular basis for the regulation of flowering time by photoperiod.
Ruth Bastow, Caroline Dean
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Photoperiodic Programming of the SCN and Its Role in Photoperiodic Output [PDF]
Neural Plasticity, 2018 Though the seasonal response of organisms to changing day lengths is a phenomenon that has been scientifically reported for nearly a century, significant questions remain about how photoperiod is encoded and effected neurobiologically. In mammals, early work identified the master circadian clock, the suprachiasmatic nuclei (SCN), as a tentative encoder
Michael C. Tackenberg +1 more
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