News tagged with circadian
It's in the genes: Research pinpoints how plants know when to flower
Scientists believe they've pinpointed the last crucial piece of the 80-year-old puzzle of how plants "know" when to flower.
May 25, 2012 |
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Group finds circadian clock common to almost all life forms
(Phys.org) -- A group of biology researchers, led by Akhilesh Reddy from Cambridge University have found an enzyme that they believe serves as a circadian clock that operates in virtually all forms of life. ...
May 17, 2012 |
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Barley takes a leaf out of reindeer's book in the land of the midnight sun
Barley grown in Scandinavian countries is adapted in a similar way to reindeer to cope with the extremes of day length at high latitudes. Researchers have found a genetic mutation in some Scandinavian barley ...
May 11, 2012 |
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Plants use circadian rhythms to prepare for battle with insects
In a study of the molecular underpinnings of plants' pest resistance, Rice University biologists have shown that plants both anticipate daytime raids by hungry insects and make sophisticated preparations to ...
Feb 13, 2012 |
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Examining evolution from a cellular perspective
The evolutionary processes of unicellular and multicellular organisms are continually under debate. John Torday, Ph.D., a lead investigator at Los Angeles Biomedical Research Institute (LA BioMed), has recently co-authored ...
Jan 25, 2012 |
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How exposure to irregular light affects plant circadian rhythms
Scientists know that plants can actually "sense" day length, and "schedule" their growth to coincide with specific environmental conditions. These natural events are based on the circadian clock, a 24-hour ...
Dec 14, 2011 |
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Researchers identify structure of circadian clock protein
(PhysOrg.com) -- Feeling jet-lagged? You may need your internal clock reset. New Cornell research has taken a major step toward treating jet lag and other more serious syndromes by advancing our understanding ...
Nov 15, 2011 |
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Research team shows skin stem cells run by circadian clock
(PhysOrg.com) -- Most everyone has heard of the circadian rhythm or the internal clock that people have that tells them when to do things, such as go to sleep. In fact, researchers have actually located where this “clock” ...
Nov 10, 2011 |
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Differences in jet lag severity could be rooted in how circadian clock sets itself
It's no secret that long-distance, west-to-east air travel – Seattle to Paris, for example – can raise havoc with a person's sleep and waking patterns, and that the effects are substantially less pronounced when ...
Oct 13, 2011 |
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Circadian cycle even more important to life than previously suspected: study
Researchers at USC were surprised recently to discover just how much the rising and setting of the sun drives life on Earth – even in unexpected places.
Sep 12, 2011 |
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Circadian clocks in a blind fish
Do animals that have evolved for millions of years underground, completely isolated from the day-night cycle, still "know" what time it is? Does a normal circadian clock persist during evolution under constant darkness? A ...
Sep 06, 2011 |
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Glowing, blinking bacteria reveal how cells synchronize biological clocks
Biologists have long known that organisms from bacteria to humans use the 24 hour cycle of light and darkness to set their biological clocks. But exactly how these clocks are synchronized at the molecular level to perform ...
Sep 01, 2011 |
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Manipulating plants' circadian clock may make all-season crops possible
Yale University researchers have identified a key genetic gear that keeps the circadian clock of plants ticking, a finding that could have broad implications for global agriculture.
Sep 01, 2011 |
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Finding mechanism behind bacteria's biological clock
(PhysOrg.com) -- A discovery by a professor at the University of California, Merced, is providing a deeper understanding of the factors that control biological clocks.
Aug 31, 2011 |
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Repairing our inner clock with a two-inch fish
Circadian rhythms — the natural cycle that dictates our biological processes over a 24-hour day — does more than tell us when to sleep or wake. Disruptions in the cycle are also associated with depression, problems ...
Jul 21, 2011 |
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