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Tag: "microbial" at biology news

Organic farms produce same yields as conventional farms

...rms steadily improved in organic matter, moisture, microbial activity and other soil quality indicators. The fact that organic agriculture systems also absorb and retain significant amounts of carbon in the soil has implications for global warming, Pimentel said, pointing out that soil carbon in the organic s...

How cell suicide protects plants from infection

...s us a better understanding of how plants fend off microbial attacks through carefully controlled destruction of infected cells," said James Anderson, of the Division of Genetics and Developmental Biology at the National Institute of General Medical Sciences (NIGMS). "Like other studies carried out in model or...

Researchers predict infinite genomes

...ts diversity." To interpret this infinite view of microbial genomes, Tettelin and colleagues propose describin...cal niches, and chart evolution. How well do these microbial genomes reflect reality? As comparative genomics itself evolves, Fraser expects TIGR to increasing...

New Scripps Oceanography project to study sediments and ecosystem restoration in Venice lagoon

... further information for assessing geochemical and microbial processes involved in sediment movement--whether n...f benthic communities * Bradley Tebo: sediment microbial communities and metal biogeochemistry * Douglas Bartlett: pathogen analysis * Farooq Azam: w...

Study casts doubt on 'Snowball Earth' theory

...ning company, identified "a complex and productive microbial ecosystem," including photosynthesizing organisms that could not have existed under a thick layer of ice. "If there was ice, it had to have been thin enough that organisms could photosynthesize below it or within it," Olcott said. Frank Corsetti of...

Say what? Bacterial conversation stoppers

...wd of various species of bacteria is essentially a microbial tower of Babel, certain snippets of their chemical conversation are almost universally understood. HHMI researchers have found that bacteria of different species can talk to each other using a common language ?and also that some species can manipulat...

New protein vital for immune response is found in surprise location

...known to be involved in immune defense against any microbial infection," said Dr. Zhijian "James" Chen, associate professor of molecular biology at UT Southwestern and the study's senior author. "This discovery puts mitochondria on the map in terms of immunity, and it opens up a new avenue of research in immun...

Researchers Discover That Microbes Can Produce Miniature Electrical Wires

...an handle electrons, and it also seems likely that microbial nanowires could be useful materials for the develo...f extremely small electronic devices.?/p> “The microbial world never stops surprising us,?said Dr. Aristides Patrinos of the U.S. Department of Energy, which...

Scripps research scientists solve structure of a critical innate immune system protein

..., are constantly challenged in a world filled with microbial pathogens. We are bathed in bacteria, confronted with fungi, pilloried with parasites, and invaded by viruses. And yet, most of the time, we survive. We survive because we possess an ancient and crucial defense mechanism known as innate immune syste...

ORNL, UC Berkeley unravel real-world clues to Earth's mysteries

A microbial community thriving under bizarre natural condition...nd a temperature of 107 degrees Fahrenheit. "This microbial community is thriving at the extreme edge," said Bob Hettich, a co-author and member of ORNL's Chemi...

Deep thinking: Scientists sequence a cold-loving marine microbe

...food treatments. Psychrophiles could hold clues to microbial life on other planets, as well, such as the frozen surface of Mars or one of Jupiter's moons, Europa. As yet, however, there's little chance that deciphering C. psychrerythraea's genome will yield insights into another cool character, its namesake. D...

Bacteria feed on smelly breath (and feet)

...ethylotrophic bacteria are part of the normal oral microbial environment or 'microflora'. The researchers foun...obacterium, which are also part of the normal foot microbial flora. The results of this study will assist future investigation into the detection of the levels ...

It's electric: Cows show promise as powerplants

...s chambers with strained rumen fluid to create the microbial fuel cell. Each chamber was about a foot high and ...aduate students, used actual cow manure to power a microbial fuel cell. These individual cells produced between 300 and 400 millivolts. "The students put a few ...

Proteomics brings researchers closer to understanding microbes that produce acid mine drainage

...ey, researchers to probe the give and take in this microbial mat. Last year, the UC Berkeley team joined with ...or some nine years, Banfield has been studying the microbial biofilm community at the Richmond Mine in Iron Mountain, Calif., nine miles northwest of Redding and...

Map of life on Earth could be used on Mars

...th," could have provided the impetus that demanded microbial adaptation. Whatever the cause, new adaptive microbial traits can be very different from those of their "peculiar" ancestors. It seems that, on some level,...

New miniaturised chip dramatically reduces time taken for DNA analysis

...tical problems, such as establishing the source of microbial contamination quickly and efficiently. The new miniaturised electrochemical genosensors meet the current need for DNA to be analysed at a low cost with easy-to-use devices that do not need to be supervised by highly trained scientists. ...

Experiment station researchers to explore genome of disease-fighting fungus

...to emerge as one of the preeminent contributors to microbial and plant genomics." ...

DOE JGI launches IMG public online microbial genome data clearinghouse

As the microbial world comes to light through DNA sequencing, the n...enable our scientists to tap the rich diversity of microbial environments and harness the possibilities that they hold for addressing challenges in environmental...

Newly Discovered 'Branding' Process Helps Immune System Cells Pick Their Fights

...ing cells are activated by inflammatory factors or microbial products, they start putting out chemically unstable compounds such as nitric oxide and superoxide. Together, these compounds generate peroynitrate, a highly potent chemical that modifies many proteins. Unanue's group showed that this chemical modif...

Stanford gut check shows diversity of intestinal ecosystem

...Affairs Palo Alto Heath Care System specializes in microbial pathogen discovery and human microbial ecology, and in appreciating the roles played by microbes in human health and disease. The paper by...

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