News tagged with pollen tubes
Biologists Unlock Secrets of Plants' Growing Tips
Aug 25, 2009 |
5 / 5 (6) |
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(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 ...
Scientists find unexpected key to flowering plants' diversity
Biology /
Jul 28, 2008 |
4.6 / 5 (19) |
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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.
Mate choice in plants
Biology /
Jun 28, 2008 |
not rated yet |
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In flowering plants, the female reproductive organ, the pistil, comprises the stigma, style, and ovary. The stigma catches pollen shed by the male anthers. If the pollen is compatible, it will germinate and send tubes through ...
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Few Americans make end-of-life wishes known
Nov 12, 2009 |
4.5 / 5 (2) |
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(AP) -- Lillian Landry always said she wasn't afraid to die. So when death came last week, the 99-year-old was lying peacefully in a hospice with no needles or tubes. Her final days saw her closest friend ...
When seconds count: Interventional radiology treatment for pulmonary embolism saves lives
Nov 11, 2009 |
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Catheter-directed therapy or catheter-directed thrombolysis -- an interventional radiology treatment that uses targeted image-guided drug delivery with specially designed catheters to dissolve dangerous blood clots in the ...
California's Ancient Kelp Forest
Nov 10, 2009 |
4.8 / 5 (4) |
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(PhysOrg.com) -- The kelp forests off southern California are considered to be some of the most diverse and productive ecosystems on the planet, yet a new study indicates that today's kelp beds are less extensive and lush ...
Argonne 'homegrown' hybrid solar cell aims for low-cost power
Nanotechnology / Nanomaterials
Nov 10, 2009 |
4.2 / 5 (11) |
3
(PhysOrg.com) -- Scientists at the U.S. Department of Energy’s (DOE) Argonne National Laboratory have refined a technique to manufacture solar cells by creating tubes of semiconducting material and then "growing" ...
Experts: Placebo power behind many natural cures
Nov 10, 2009 |
5 / 5 (1) |
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(AP) -- People looking for natural cures will be happy to know there is one. Two words explain how it works: "I believe." It's the placebo effect - the ability of a dummy pill or a faked treatment to make people feel better, ...
Scientists develop DNA origami nanoscale breadboards for carbon nanotube circuits
Nanotechnology / Nanomaterials
Nov 10, 2009 |
5 / 5 (7) |
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In work that someday may lead to the development of novel types of nanoscale electronic devices, an interdisciplinary team of researchers at the California Institute of Technology has combined DNA's talent ...
The bizarre lives of bone-eating worms
Nov 09, 2009 |
4.5 / 5 (2) |
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The females of the recently discovered Osedax marine worms feast on submerged bones via a complex relationship with symbiotic bacteria, and they are turning out to be far more diverse and widespread than scientists expected. ...
Well-traveled wasps provide hope for vanishing species
Nov 09, 2009 |
5 / 5 (3) |
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They may only be 1.5mm in size, but the tiny wasps that pollinate fig trees can travel over 160km in less than 48 hours, according to research from scientists at the University of Leeds. The fig wasps are transporting ...
Spinal cord regeneration enabled by stabilizing, improving delivery of scar-degrading enzyme
Nov 02, 2009 |
4.2 / 5 (5) |
1
Researchers have developed an improved version of an enzyme that degrades the dense scar tissue that forms when the central nervous system is damaged. By digesting the tissue that blocks re-growth of damaged ...
Forest clearances sealed ancient civilisation's downfall
Other Sciences / Archaeology & Fossils
Nov 02, 2009 |
4.9 / 5 (9) |
6
(PhysOrg.com) -- An ancient South American civilisation which disappeared around 1,500 years ago helped to cause its own demise by damaging the fragile ecosystem that held it in place, a study has found. ...
List of search results for pollen tubes
