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A step toward a new sunscreen? PDF Print E-mail
Wednesday, 01 September 2010 00:31

Maybe you worshipped the sun in your youth or weren't as meticulous as you should have been with sunscreen. If so, take heart: Scientists at The University of Texas Health Science Center San Antonio are finding that certain plant substances, when given in combinations, may suppress damage that can cause skin cancer.

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Ants found to use multiple antibiotics as weed killers PDF Print E-mail
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Wednesday, 01 September 2010 00:23

Scientists at the University of East Anglia, have shown that fungus-farming ants are using multiple antibiotics as weed killers to maintain their fungus gardens.

Research led by Dr Matt Hutchings and published today in the journal BMC Biology shows that ants use the antibiotics to inhibit the growth of unwanted fungi and bacteria in their fungus cultures which they use to feed their larvae and queen.

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Novel Mechanism Protects Plants Against Freezing; Insights Could Add to Understanding of Drought Tolerance Also PDF Print E-mail
Sunday, 29 August 2010 19:58
New ground broken by Michigan State University biochemists helps explain how plants protect themselves from freezing temperatures and could lead to discoveries related to plant tolerance for drought and other extreme conditions.
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Researchers Study Cinnamon Extracts PDF Print E-mail
Sunday, 29 August 2010 19:55

A study led by U.S. Department of Agriculture (USDA) chemist Richard Anderson suggests that a water soluble extract of cinnamon, which contains antioxidative compounds, could help reduce risk factors associated with diabetes and heart disease.

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On organic coffee farm, complex interactions keep pests under control PDF Print E-mail
Friday, 27 August 2010 02:52

Proponents of organic farming often speak of nature's balance in ways that sound almost spiritual, prompting criticism that their views are unscientific and naďve. At the other end of the spectrum are those who see farms as battlefields where insect pests and plant diseases must be vanquished with the magic bullets of modern agriculture: pesticides, fungicides and the like.

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Growing Drought-Tolerant Crops Inching Forward PDF Print E-mail
Friday, 27 August 2010 02:49
A collaborative team of scientists led by researchers at The Medical College of Wisconsin, in Milwaukee, has used the tools of structural biology to understand how a synthetic chemical mimics abscisic acid (ABA), a key stress hormone that helps plants cope with adverse environmental conditions such as drought.
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Mosquitoes: Genetic Structure of First Animal to Show Evolutionary Response to Climate Change Determined PDF Print E-mail
Tuesday, 24 August 2010 23:12
Scientists at the University of Oregon have determined the fine-scale genetic structure of the first animal to show an evolutionary response to rapid climate change.

They used a high-throughput sequencing technique called Restriction-site Associated DNA (RAD) tagging to make the discovery.

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Plants Give Up Some Deep Secrets of Drought Resistance PDF Print E-mail
Tuesday, 24 August 2010 23:09
In a study that promises to fill in the fine details of the plant world's blueprint for surviving drought, a team of Wisconsin researchers has identified in living plants the set of proteins that help them withstand water stress.

The new study, published on Aug. 23 in the Proceedings of the National Academy of Sciences, identifies the protein targets in cells of a key hormone that controls how plants respond to environmental stresses such as drought, excessive radiation and cold.

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Drought Drives Decade-Long Decline in Plant Growth PDF Print E-mail
Monday, 23 August 2010 04:32
Global plant productivity that once was on the rise with warming temperatures and a lengthened growing season is now on the decline because of regional drought, according to a new study of NASA satellite data.

Plant productivity is a measure of the rate of the photosynthesis process that green plants use to convert solar energy, carbon dioxide and water to sugar, oxygen and eventually plant tissue.

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Biologists Study Rainforest Host-Plant Associations PDF Print E-mail
Monday, 23 August 2010 04:21
The widening of the Panama Canal currently underway has created a rare opportunity to study the insects that inhabit the plants of environmentally sensitive Central American rain forest habitats. Dr. Amy Berkov, Professor of Biology at The City College of New York (CCNY), is leading a research effort that could shed new light on biodiversity by documenting the area's host-plant relationships.
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Core Knowledge of Tree Fruit Expands With Apple Genome Sequencing PDF Print E-mail
Wednesday, 01 September 2010 00:25
An international team of scientists from Italy, France, New Zealand, Belgium and the USA have published a draft sequence of the domestic apple genome in the current issue of Nature Genetics.

The availability of a genome sequence for apple will allow scientists to more rapidly identify which genes provide desirable characteristics to the fruit and which genes and gene variants provide disease or drought resistance to the plant. This information can be used to rapidly improve the plants through more informed selective breeding.

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Lethal Backfire: Green Odor With Fatal Consequences for Voracious Caterpillars PDF Print E-mail
Sunday, 29 August 2010 20:00
Plants have developed a sophisticated defense system. They can not only directly fend off herbivores by producing toxins, but also do so indirectly by emitting odorant molecules into the atmosphere that are perceived by predatory insects; these predators are lured to the attacked plant and feed on the herbivore or parasitize it -- thereby providing a benefit for the plant.
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Burning Invasive Juniper Trees Boosts Perennial Grass Recovery PDF Print E-mail
Sunday, 29 August 2010 19:56
Controlling juniper trees by cutting them down and burning them where they fall keeps invasive cheatgrass at bay and allows native perennials to become re-established, according to findings by U.S. Department of Agriculture (USDA) scientists.
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'Soyscreen': Sunscreen For Fungus To Expand Biological Control Of Crop Pests PDF Print E-mail
Friday, 27 August 2010 02:54

Scientists today at the 240th American Chemical Society (ACS) National Meeting & Exposition described development and successful initial tests on a substance that acts as a sunscreen for the microscopic spores of a fungus, brightening prospects for wider use of the fungus as a means of wiping out insect pests that attack food crops.

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Tiny, New, Pea-Sized Frog Is Old World's Smallest PDF Print E-mail
Friday, 27 August 2010 02:50
The smallest frog in the Old World (Asia, Africa and Europe) and one of the world's tiniest was discovered inside and around pitcher plants in the heath forests of the Southeast Asian island of Borneo. The pea-sized amphibian is a species of microhylid, which, as the name suggests, is composed of miniature frogs under 15 millimeters.
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Fires and Floods Key to Dinosaur Island Secrets PDF Print E-mail
Tuesday, 24 August 2010 23:14
Fires and floods which raged across the Isle of Wight some 130 million years ago made the island the richest source of pick 'n' mix dinosaur remains of this age anywhere in the world.

A new study has revealed the Island's once violent weather explains why thousands of tiny dinosaur teeth and bones lie buried alongside the huge bones of their gigantic relatives.

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Sensor Important to Understanding Root, Seedling Development PDF Print E-mail
Tuesday, 24 August 2010 23:10
A biosensor utilizing black platinum and carbon nanotubes developed at Purdue University will help give scientists a better understanding of how the plant hormone auxin regulates root growth and seedling establishment.

Marshall Porterfield, an associate professor of agricultural and biological engineering and biomedical engineering, created a new sensor to detect the movement of auxin along a plant's root surface in real time without damaging the plants.

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CCNY Biologists Study Rain Forest Host-Plant Associations PDF Print E-mail
Monday, 23 August 2010 04:35

Panama Canal Expansion Creates Rare Opportunity to Obtain Samples in Environmentally Sensitive Area

The widening of the Panama Canal currently underway has created a rare opportunity to study the insects that inhabit the plants of environmentally sensitive Central American rain forest habitats.  Dr. Amy Berkov, Professor of Biology at The City College of New York (CCNY), is leading a research effort that could shed new light on biodiversity by documenting the area’s host-plant relationships.

 

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Study Examines Nitrogen, Copper Levels in Bay Watershed PDF Print E-mail
Monday, 23 August 2010 04:29
A comprehensive study of pollutants in a major Chesapeake Bay tributary revealed troublesome levels of nitrogen and copper that could flow into the Bay, according to U.S. Department of Agriculture (USDA) scientists and their cooperators.
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Can clonal plants live forever? PDF Print E-mail
Thursday, 19 August 2010 23:33

Despite the many cosmetic products, surgical treatments, food supplements, and drugs designed specifically to reverse the biological effects of aging in humans, long-lived aspen clones aren't so lucky. Researchers at the University of British Columbia have shown that as long-lived male aspen clones age, their sexual performance declines.

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