News tagged with pollen
Algae and pollen grains provide evidence of remarkably warm period in Antarctica's history
Space & Earth / Earth Sciences
Oct 01, 2009 |
4.9 / 5 (12) |
2
For Sophie Warny, LSU assistant professor of geology and geophysics and curator at the LSU Museum of Natural Science, years of patience in analyzing Antarctic samples with low fossil recovery finally led to a scientific breakthrough. ...
Biologists Unlock Secrets of Plants' Growing Tips
Aug 25, 2009 |
5 / 5 (6) |
1
(PhysOrg.com) -- Biologist Magdalena Bezanilla and colleagues at the University of Massachusetts Amherst have used a technique they call multi-gene silencing to, for the first time, simultaneously silence nine genes in a ...
Sex life of plants reveals conflicts between the sexes
May 08, 2009 |
4 / 5 (2) |
0
The pollen grains of male plants live in great competition. A grain of pollen that succeeds in manipulating the flower’s pistil can emerge victorious from the struggle. This is shown by new research from Lund University in ...
Plants may affect the effect of wildfires
May 01, 2009 |
not rated yet |
1
(PhysOrg.com) -- Rising temperatures may lead to more tinder-dry vegetation, but that doesn't mean there will be a higher risk for wildfires in a particular area.
Malfunction of the respiratory epithelium is a cause of allergy?
Apr 03, 2009 |
not rated yet |
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One reason for the development of allergy may be malfunction of the respiratory epithelium, which allows allergens to bind to, enter and travel through the epithelium. Two studies by Finnish research groups on this subject ...
Flight of the bumble (and honey) bee
Mar 20, 2009 |
5 / 5 (2) |
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Insects such as honeybees and bumble bees are predictable in the way they move among flowers, typically moving directly from one flower to an adjacent cluster of flowers in the same row of plants. The bees' ...
Scientist uses sedimentary record to uncover planet's past
Space & Earth / Earth Sciences
Feb 27, 2009 |
4.4 / 5 (8) |
1
(PhysOrg.com) -- The wind barreled across the ice at Daily Lake as Montana State University paleoecologist Cathy Whitlock and three students used all their strength to pull a metal pipe out of the mucky lake ...
Hold that tissue: Allergy help may be on the way
Feb 13, 2009 |
4 / 5 (1) |
0
It isn’t beach weather in most of the United States right now, but it’s never too early to be thinking about spring and summer. Unfortunately, for people with allergies, today’s daydreams can turn into nightmares ...
Scientists discover how 'companion' cells to sperm protect them from genetic damage
Biology /
Feb 05, 2009 |
not rated yet |
0
In plant pollen grains, sperm cells, which carry the genetic material to be passed on to progeny, are cocooned within larger "companion" cells that are called pollen vegetative cells. These companions provide sperm with ...
Silencing of jumping genes in pollen
Biology /
Feb 05, 2009 |
not rated yet |
0
Scientists at the Instituto Gulbenkian de Ciência (IGC), in Portugal, are to date the only research group in the world capable of isolating the sperm cells in the pollen grain of the model plant Arabidopsis thaliana. This ...
Nothing to sneeze at: Real-time pollen forecasts
Chemistry / Analytical Chemistry
Dec 22, 2008 |
4 / 5 (2) |
0
Researchers in Germany are reporting an advance toward development of technology that could make life easier for millions of people allergic to plant pollen. It could underpin the first automated, real-time ...
Female plant 'communicates' rejection or acceptance of male
Biology /
Oct 23, 2008 |
5 / 5 (5) |
0
(PhysOrg.com) -- Without eyes or ears, plants must rely on the interaction of molecules to determine appropriate mating partners and avoid inbreeding. In a new study, University of Missouri researchers have identified pollen ...
Biologists discover gene behind 'plant sex mystery'
Biology /
Oct 22, 2008 |
3.8 / 5 (11) |
0
An enigma – unique to flowering plants – has been solved by researchers from the University of Leicester (UK) and POSTECH, South Korea. The discovery is reported in the journal Nature on 23 October 2008. ...
Pollen Alert!
Sep 19, 2008 |
4 / 5 (1) |
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When you stroll through your front door in the morning, does the yellow haze coating the porch send you leaping back into the house? Can the mere word "pollen" make you start to sniffle, sneeze and reach for ...
Scientists find unexpected key to flowering plants' diversity
Biology /
Jul 28, 2008 |
4.6 / 5 (19) |
2
What began with an off-the-cuff curiosity eventually led Joe Williams to hang from the limbs of a tree 80 feet above the soil of northeastern Australia.
