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Tag: "extends" at biology news

Study reveals classic symbiotic relationship between ants, bacteria

...ly vital to the species' survival. The phenomenon extends beyond the two species of Cyphomyrmex to about 210 species of fungus-growing ants, which harbor many different species of a specific group of bacteria. "For me, it shows us how little we know about natural systems and microbes in nature. Fungus-gro...

Face perception is modulated by sexual orientation

... response to faces within the orbitofrontal cortex extends the role of this brain region in social behavior. Does the orbitofrontal cortex play a role in evaluating potential reproductive partners? Facial beauty is considered a marker for reproductive fitness. Not surprisingly, recent studies have reported ...

Common enzyme is a key player in DNA repair

...nd that DinB's unique ability to repair DNA damage extends to mice and archaea, an ancient and diverse group of single-celled organisms. In nearly every organism, they believe, the same specialized enzyme is poised to patch over a certain kind of blemish so that it does not permanently damage the genome. T...

Invasive species harms native hardwoods by killing soil fungus

...g an intricate interwoven network that effectively extends the plant's root system. AMF depend on plants for energy and plants depend on the fungi for nutrients. When tree seedlings, which depend strongly on AMF, began to decline in the presence of garlic mustard, the researchers suspected that the invasive ...

Novel protein complex enables survival in hostile environment

...way to dispelling this simplistic view and greatly extends our knowledge of their versatility." Methanogenesis is a microbial process in nature that produces methane, an energy resource and a green house gas. Sulfate reduction is also a microbial process where organisms turn sulfate into sulfide, a corrosi...

Deep treasure to be found in Oculina Bank

...oral HAPC was expanded to 300 square miles and now extends from Fort Pierce to Cape Canaveral. The original 92 square-mile area, now known as the Oculina Experimental Closed Area, has further restrictions including prohibition of bottom fishing for snapper and grouper species. However, surface trolling for ...

Study shows big game hunters, not climate change, killed off sloths

...cendants are several small tree sloths whose range extends from southern Mexico to southern Brazil, he said. Such an experiment might be similar to the one that involved restoring bison, once native to Florida, to Paynes Prairie Preserve State Park near Gainesville, Steadman said. "With the work we're doing...

Emerald Spectre haunts Ontario's ash forests

... zone now covers all of Ontario's Essex County and extends to include the entire lower peninsula in Michigan and much of northern Indiana and Ohio. "It's not just an Ontario or Canadian problem. Even if we're able to contain it here, it could come across at Sarnia or at Sault Ste. Marie. It's a case where ...

Sensor web simulation investigates technique to improve prediction of pollution across the globe

... of the atmosphere where our weather occurs and it extends from the Earth's surface to roughly the cruising altitude of a passenger jet - about 40,000 feet. In some cases air pollutants have natural causes such as lightning induced wildfires that can emit large plumes of particulates into the troposphere. Fo...

Two designer drugs hit same lung cancer target, but only one is effective

... that binds to a portion of the EGFR receptor that extends outside the cell. This difference in action is the apparent explanation for why they performed differently against the mutant EGFR cells. The scientists also looked at cases of four NSCLC patients with EGFR mutations who had been treated with the tw...

Sea Ice May Be on Increase in the Antarctic

A protein that extends lifespan in yeast, worms, and flies keeps blood sugar under control in mice, reports a new study in the August Cell Metabolism. The findings suggest therapeutic interventions for the prevention and treatment of metabolic disorders, such as type 2 dia...

Life-extending protein keeps blood sugar in check

A protein that extends lifespan in yeast, worms, and flies keeps blood sugar under control in mice, reports a new study in the August Cell Metabolism. The findings suggest therapeutic interventions for the prevention and treatment of metabolic disorders, such as type 2 dia...

Cultural norms not unique to human societies

...t. Andrews, Scotland, applied a unique method that extends the experimental approach to the group level, focuses on ape-to-ape transmission and uses a two-action methodology. This approach bridges the gap between two conventional research methods: population-level observations on wild apes and one-to-one s...

Exercise training in ordinary people affects the activity of 500 genes

...tivity brings health, improves quality of life and extends life span. How these positive effects are created in the body is not known. Influences on gene activity in the heart, vessels and muscles are probably immensely important. In this study, the first of its kind, Drs James Timmons, Carl J Sundberg and ...

The making and breaking of microtubules

...ire more tubulin dimers, and the whole microtubule extends rapidly for many millionths of a meter before suddenly switching off and shrinking again. Nucleotides like GTP are best known as units of the nucleic acids DNA and RNA, consisting of a base (a letter in the genetic code) plus a sugar and three phosp...

Stem cells in bone marrow replenish mouse ovaries

...ines throughout life. The new report significantly extends earlier work from the same research team reporting the first preliminary evidence that ovaries of mice can be renewed with new eggs in adulthood. The new study suggests an unexpected source for the progenitor cells that can jumpstart new egg cell pr...

New understanding of cell movement may yield ways to brake cancer's spread

...on form first, in which the cell changes shape and extends towards the direction it is about to go, followed by movement of the rest of the cell," Vuori said. Now, the researchers are looking at developing a three-dimensional picture of PIP3 -binding domain's molecular structure. "We are currently planning ...

Lipids get new comprehensive classification system

... drawn on the right side and the hydrocarbon chain extends to the left. In the simplest case of the fatty acid derivatives, the acid group is drawn on the right and the hydrophobic hydrocarbon chain is on the left. Another part of the classification system is a 12 digit identifier for each unique lipid mole...

Eliminate Data Analysis Bottlenecks in Drug Discovery

...cellular aging when food is scarce, an effect that extends the single-celled organism's lifespan. "We now know that sirtuin1 is directly involved in the response to calorie restriction in mammals and in processes involved in cellular aging," says Puigserver. "But we still don't know whether sirtuin1's activ...

Computational verification of protein-protein interactions by orthologous co-expression

...cellular aging when food is scarce, an effect that extends the single-celled organism's lifespan. "We now know that sirtuin1 is directly involved in the response to calorie restriction in mammals and in processes involved in cellular aging," says Puigserver. "But we still don't know whether sirtuin1's activ...

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