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Latest Dormancy Stories

Lemur's Reproduction Cycle Altered By Light Pollution
2014-07-03 03:31:00

Society for Experimental Biology Besides obscuring the stars, light pollution can also disrupt the reproduction of light-sensitive animals. French scientists have shown that light pollution can override the natural reproductive cycle of some animals, making them sexually active out of season. "The natural light/dark cycle allows living organisms to time a variety of behavioural and physiological rhythms, including migration, accumulation of reserves, dormancy and reproduction,"...

2014-06-17 12:49:48

Michigan Tech Winter takes its toll on living things. To protect themselves from the elements, bears hibernate, and trees go dormant.   Biologists have observed what happens when trees become dormant, but up to now, they haven’t understood the underlying genetic mechanisms that enable them to start growing again. A team led by molecular geneticists from Michigan Technological University has identified and characterized a gene that tells a poplar tree when winter ends and a spring...

Lettuce That Could Sprout Year Round
2013-03-29 10:58:06

University of California, Davis A team of researchers, led by a University of California, Davis, plant scientist, has identified a lettuce gene and related enzyme that put the brakes on germination during hot weather – a discovery that could lead to lettuces that can sprout year-round, even at high temperatures. The study also included researchers from Arcadia Biosciences and Acharya N.G. Ranga Agricultural University, India. The finding is particularly important to the nearly...

2011-12-16 14:02:58

Although the temperate climates of central Europe provide plentiful food in summer, finding enough to eat is much more problematic in winter. Many small mammals avoid the problem by hibernating but this survival strategy is generally not practiced by larger animals. With the exception of some bears, large mammals remain fully awake throughout the year, yet they too must reduce their metabolism to cope with the comparative scarcity of food. Red deer, for example, are known to lower their heart...

2011-12-12 17:47:24

Dormant seeds in the soil detect and respond to seasonal changes in soil temperature by changing their sensitivity to plant hormones, new research by the University of Warwick has found. This sensitivity alters the depth of dormancy, indicating to the seed when it is the right time of year to germinate and grow. The seeds of common weeds can survive in the soil in a dormant state for years, in some cases decades, spelling issues for food security when they emerge to compete with crops....

Image 1 - What's Keeping Michaux's Sumac On The Critically Endangered List?
2011-10-12 04:17:57

It is one of the rarest shrubs in the southeastern United States, and for scientists trying to save it, the critically endangered Michaux's sumac (Rhus michauxii) is not cooperating. So far botanists have exposed the hard-, thick-coated seeds of this native North American plant to boiling water, dry heat up to 284 degrees Fahrenheit and flames from a propane blowtorch to try to coax them into germination. Nothing has worked. "Complete understanding of the germination requirements of...

2011-09-28 12:40:22

The creation of compounds that disrupt a worldwide pest´s winter sleep hints at the potential to develop natural and targeted controls against crop-eating insects, new research suggests. Scientists have designed agents that interfere with the protective dormancy period of the corn earworm, a species that infests more than 100 types of plants and costs American farmers an estimated $2 billion a year in losses and control costs. The compounds, composed of synthetic molecules that...

2011-01-26 14:18:14

It's commonly known, at least among microbiologists, that microbes have an additional option to living or dying "” dormancy. Dormant microbes are less like zombies and more like hibernating bears. What isn't known, however, is how large numbers of dormant microorganisms affect the natural environments when they act as microbial seed banks. In the current issue of Nature Reviews: Microbiology, Jay Lennon, Michigan State University assistant professor of microbiology and molecular...

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2011-01-11 23:37:33

Study yields new model that can help managers calculate when plants will burst bud under different climate scenariosThe opening of buds on Douglas-fir trees each spring is the result of a complex interplay between cold and warm temperatures during the winter, scientists with the U.S. Forest Service's Pacific Northwest Research Station have found.Their research"”which is featured in the December issue of Science Findings, a monthly publication of the station"”led to the development...


Word of the Day
cacodemon
  • An evil spirit; a devil.
  • A nightmare.
  • In astrology, the twelfth house of a scheme or figure of the heavens: so called from its signifying dreadful things, such as secret enemies, great losses, imprisonment, etc.
'Cacodemon' comes from a Greek term meaning 'evil genius.'
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