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Microbe in Biological News

Plant microbe shares features with drug-resistant pathogen

UPTON, NY -- An international team of scientists has discovered extensive similarities between a strain of bacteria commonly associated with plants and one increasingly linked to opportunistic infections in hospital patients. The findings suggest caution in the use of the plant-associated strain f...

A tiny frozen microbe may hold clues to extraterrestrial life

A novel bacterium that has been trapped more than three kilometres under glacial ice in Greenland for over 120 000 years, may hold clues as to what life forms might exist on other planets. Dr Jennifer Loveland-Curtze and a team of scientists from Pennsylvania State University report finding th...

Mysterious microbe plays important role in ocean ecology

An unusual microorganism discovered in the open ocean may force scientists to rethink their understanding of how carbon and nitrogen cycle through ocean ecosystems. A paper describing the new findings appears in the November 14 issue of the journal Science . A research team led by Jonathan ...

Mysterious microbe may play important role in ocean ecology

SANTA CRUZ, CA--An unusual microorganism discovered in the open ocean may force scientists to rethink their understanding of how carbon and nitrogen cycle through ocean ecosystems. A research team led by Jonathan Zehr, professor of ocean sciences at the University of California, Santa Cruz, charac...

Wielding microbe against microbe, beetle defends its food source

MADISON -- As the southern pine beetle moves through the forest boring tunnels inside the bark of trees, it brings with it both a helper and a competitor. The helper is a fungus that the insect plants inside the tunnels as food for its young. But also riding along is a tiny, hitchhiking mite, whic...

Cataloguing invisible life: Microbe genome emerges from lake sediment

When entrepreneurial geneticist Craig Venter sailed around the world on his yacht sequencing samples of seawater, it was an ambitious project to use genetics to understand invisible ecological communities. But his scientific legacy was disappointing a jumble of mystery DNA fragments belonging to ...

University of Arizona scientist shares in discovery of microbe filaments' power

Researchers from The University of Arizona and Columbia University have discovered that tiny filaments on bacteria can bundle together and pull with forces far stronger than experts had previously thought possible. The team of researchers, including Magdalene Maggie So, a member of the BIO5 Ins...

Elevated carbon dioxide changes soil microbe mix below plants

UPTON, NY - A detailed analysis of soil samples taken from a forest ecosystem with artificially elevated levels of atmospheric carbon dioxide (CO 2 ) reveals distinct changes in the mix of microorganisms living in the soil below trembling aspen. These changes could increase the availability of es...

Ready, set, mutate?and may the best microbe win

Even with modern genomic tools, it's a daunting task to find a smoking gun for Darwinian evolution. The problem lies in being able to say not just when and how a specific gene mutated but also how that one genetic change translated into real-world dominance of one population over another. Rice Un...

MBL researchers probe how an ancient microbe thrives and evolves without sex

A January 2004 finding by biologists at the Josephine Bay Paul Center for Comparative Molecular Biology and Evolution added important evidence to the radical conclusion that a group of diminutive aquatic animals called bdelloid rotifers have evolved for tens of millions of years without sexual repr...

Genome study of beneficial microbe may help boost plant health

In a study expected to greatly benefit crop plants, scientists have deciphered the genome of a root- and seed-dwelling bacterium that protects plants from diseases. The research provides clues to better explain how the helpful microbe, Pseudomonas fluorescens Pf-5, naturally safeguards roots and...

Scientists discover unique microbe in California's largest lake

Scientists at the University of Oregon have discovered a form of blue-green algae that lives independently in California's Salton Sea, using near-infrared light for photosynthesis, according to an article published in this week's online edition of the Proceedings of the National Academy of Sciences...

Sustainable agriculture at the ESA Annual Meeting

... ground. The perennial fields also had higher soil microbe biodiversity and higher levels of dissolved carbon... the long term." Reduced tilling improves soil microbe biodiversity The idea of using biological inste...il ecosystem and decrease the effectiveness of the microbe community. In his poster, Shashi Kumar of Texas ...

Life on Earth came from other planets

..., enabling spores to survive. Numerous published studies have proven that microbes can easily survive an interplanetary journey. Many species of microbe have evolved the ability to survive a violent impact and ejection into space; the frigid temperatures and vacuum of an interstellar environment; the U...

Reviews of microbial gene language published in special issue of Trends in Microbiology

...ocabulary to describe disease-related and beneficial interactions between a microbe and its host. By allowing scientists to link experimental results to a comp...tabases for the organisms yeast, fruit fly, and mouse. The Plant-Associated microbe Gene Ontology (PAMGO) Consortium joined the effort in 2004 to focus on micr...

Plant protein 'doorkeepers' block invading microbes, study finds

...to recognize specific molecular features of an invading microbe, while the other branch uses similar proteins within the cell to recognize an invading microbe during the infection process. Up until now, scientists had identified only one protein, known as RIN4, which is able to regulate these two branche...

Finding the constant in bacterial communication

... researchers found that the total volume of bacteria in relation to the volume of their environment is a key to quorum sensing, no matter what kind of microbe is involved. "If there are only a few cells in an area, nothing will happen," Pai said. "If there are a lot of cells, the secreted chemicals are hi...

Elsevier announces 2008 journal impact factor highlights

...ell Stem Cell ( http://www.cell.com/cell-stem-cell/home ) (16.826) entered the Cell Biology category ranked 6th (of 157 journals), while Cell Host & microbe ( http://www.cell.com/cell-host-microbe/home ) (7.436) entered the Microbiology category ranked10th (of 91 journals). Another impressive result in it...

Plant protein 'doorkeepers' block invading microbes, study finds

...to recognize specific molecular features of an invading microbe, while the other branch uses similar proteins within the cell to recognize an invading microbe during the infection process. Up until now, scientists had identified only one protein, known as RIN4, which is able to regulate these two branche...

New trigger for chronic inflammation in rheumatoid arthritis discovered

...pping the disease closer to the root of the problem could be the best way to treat it, and their results suggest a new target for therapies. When a microbe infects the body, the body responds by turning on a molecular switch to set the immune system into action and protect the body from disease. Today's f...

Phthalic symbol

...nstitute of Technology, in Nangang District, have identified and isolated a microbe that can digest one of the most common PAEs, d-n-butyl phthalate. This comp...h and reproduction. The researchers then tested this phthalate-digesting microbe by immobilizing cells on a new type of ceramic honeycomb support. They then...

Antibiotics take toll on beneficial microbes in gut

...ally in people with health problems that might already compromise their gut microbe health, Young says. Multiple rounds of antibiotics may also deserve concern...ecently published a study that demonstrates that long-term decreases in gut microbe diversity from repeated antibiotics are associated with recurring C. diffi...

American Chemical Society weekly presspac -- June 10, 2009

... Korea Phone: 82-2-880-8327 Fax: 82-2-885-1748 Email: parksy@snu.ac.kr ARTICLE #4 FOR IMMEDIATE RELEASE Reengineering a food poisoning microbe to carry medicines and vaccines Molecular Pharmaceutics Scientists have used genetic engineering to tame one of the most deadly food poisoning...

Researchers describe 'implausible' chemistry that produces herbicidal compound

... CHAMPAIGN, Ill. A soil microbe that uses chemical warfare to fight off competitors employs an unusual chemical pathway in the manufacture of its arsenal, researchers report, making ...

Scientists work to plug microorganisms into the energy grid

...ies ready to move forward. Andreas Schirmer from the company LS9 in South San Francisco describes a unique strategy. LS9 has engineered a proprietary microbe to produce UltraClean diesel in a one-step process. They have discovered a way to exploit the pathway that microbes use to make energy-rich fatty aci...

MIT reels in RNA surprise with microbial ocean catch

... CAMBRIDGE, Mass.--An ingenious new method of obtaining marine microbe samples while preserving the microbes' natural gene expression has yielded an unexpected boon: the presence of many varieties of small RNAs snippets ...

New study overturns orthodoxy on how macrophages kill bacteria

...ntities of superoxide onto engulfed bacteria to kill them. Although macrophages direct ROS against invading bacteria, Salmonella typhimurium , the microbe used in the study, is adept at evading these defenses. The most virulent strains of S. typhimurium can survive and even propagate inside macrophages...

American Chemical Society's Weekly PressPac -- April 22, 2009

... detecting the deadliest strain of Listeria food poisoning bacteria. That microbe causes hundreds of deaths and thousands of hospitalizations each year in th...itive at detecting the deadly bacterium than antibody-based tests. It had a microbe capture rate up to 83 percent higher than antibody-based tests. The new bio...

HIV dearms protective protein in cells

...ledge may enable an improvement of the small animal model developed by the Heidelberg researchers. The study was published in the journal Cell Host & microbe in March 2009. Newly formed viruses are retained at the cell surface In addition to the immune system, the body can activate other protecti...

Research could lead to new non-antibiotic drugs to counter hospital infections

...r key researcher in this study. "A more sensible approach to fighting infectious diseases may be to try to understand the circumstances that provoke a microbe to cause harm in the first place and then find ways to pacify them without destroying them." Containment on a case-by-case basis might be a more ef...

Better living through chemistry

... dark side of the moon has been throughly mapped.) Of all the world's unexplored marine environments, why did the Joye team choose to conduct their microbe study at the mud volcano and the brine pool? Because both environments are characterized by releases of gas and oil that are known to provide food and...

Bioscience institutions come together to launch Microlife Discovery Center for area students

...in Balboa Park. In the first public Microbial Bioblitz event (sponsored by the E.O. Wilson Biodiversity Foundation), more than 200 novel species of microbe were found in New York's Central Park. Students who participate in the school-based program stand an excellent chance of making their own discover...

When intestinal bacteria go surfing

... able to form pedestals for the bacteria." The signal pathway clarified by the Braunschweig researchers published today in the journal Cell Host & microbe is a good example of how pathogenic bacteria develop progressively with their host. With the aid of bacterial factors, they therefore manage to simu...

Synthetic biology can help extend anti-malaria drug effectiveness

...need it the most cannot afford it. In 2002, Keasling and members of his research group, using the tools of synthetic biology, set out to engineer a microbe that would perform most of the chemistry needed to make artemisinin in order to substantially reduce production costs. In 2003, they reported their fi...

A worm-and-mouse tale: B cells deserve more respect

...ealth. For many years, scientists believed that the major job of B cells was to identify foreign invaders and tag them with antibodies, marking the microbe for destruction by the immune system. But scientists are discovering that B cells do much more, resulting in new information about our immune system t...

Malaria parasite zeroes in on molecule to enhance its survival, team finds

...ting therapies that will cure malaria," said Kellen Olszewski, a graduate student at Princeton University and first author of the Feb. 18 Cell Host & microbe paper describing the work. The project was led by Manuel Llins, an assistant professor of molecular biology and the Lewis-Sigler Institute for Integr...

Special issue of BMC Microbiology spotlights standardized language for describing microbes

...y colonize. Eight papers from members of the international Plant-Associated microbe Gene Ontology (PAMGO) consortium chronicle efforts to expand The Gene Ontol...ocabulary to describe disease-related and beneficial interactions between a microbe and its host. In three years, the PAMGO consortium has created more than 70...

Genetic adaptations key to microbe's survival in challenging environment

... Genetics , an open-access publication published by the Public Library of Science. The research focused on the bacterium Nautilia profundicola , a microbe that survives near deep-sea hydrothermal vents. Microorganisms that thrive at these geysers on the sea floor must adapt to fluctuations in temperature...

Long-sought protein structure may help reveal how 'gene switch' works

...) for cAMP, a small molecule that, once attached, serves as the signal to throw the switch. This "on" state of CRP then turns on the genes that help a microbe survive in a human host. The researchers hope that once the switching mechanism is understood the data can be used to develop new methods for prev...

Scientists discover how deadly fungus protects itself

... February 3, 2009 (Bronx, NY) Researchers at Albert Einstein College of Medicine of Yeshiva University have discovered how a deadly microbe evades the human immune system and causes disease. The study, published in the journal Proceedings of the National Academy of Sciences ( PNAS )...
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