microbes 2 6

Tag: "microbes" at biology news

Reducing antibiotic use lowers rates of drug-resistant bacteria

...nicillin, but resistance to the drug is making the microbes more difficult to control. Researchers in France tested two intervention methods intended to reduce the rate of carriage of penicillin-resistant pneumococci in kindergarteners. The prescription-reduction method involved not prescribing antibiotics ...

Living anti-HIV gel shows early promise

... tracts are prime sites for HIV infection. Various microbes live in each, playing an important role in defendi...pe that adding modified bacteria to these existing microbes could help prevent HIV transmission, especially in developing countries. They point out that if the ...

A bug's life: Exceptional genomic stability yet rapid protein evolution in a carpenter ant mutualist

...ng the initiation of DNA replication. In turn, the microbes may synthesize certain nutrients that enable the ants to inhabit unique ecological niches and thrive on nutritionally unbalanced food sources. This mutualistic association is thought to contribute to the astounding ecological success of Camponotus, w...

UQ scientists break new ground in fight against infection & chronic disease

...isease. Professor Stow said when disease-causing microbes infect the body, macrophages respond by engulfing and killing the microbes. "The cells also release chemical messengers to boost immunity," Professor Stow said. She said the research was made possible by advanced technologies at the IMB such as l...

New book expands biological classifications to account for 'alien' life

...en created in laboratories on Earth. That includes microbes with at least one amino acid beyond the 20 in the DNA of native Earth life, or organisms that have been genetically modified, Ward said. It also includes some life forms that have been modified to be much simpler than what is normally found on Earth....

DDT-resistant insects have additional genetic advantage that helps resistance spread

...ing antibiotics they also 'cured' the flies of the microbes that are known to affect their ability to reproduce and could affect the results. In order to assess the genetic fitness of both the resistant and susceptible strains, the researchers monitored the survival and development rate of all life stages of...

Controlling wildlife trade key to preventing health crises, study says

...al traded. The pathogens, and even commonly benign microbes these animals carry are sometimes transmitted to other species, including humans, in the process. Domestic animals and wild scavengers in market places and villages also consume the waste and remnants of infected trade animals providing further oppor...

Drugs from the deep blue

...separate evolution. That should make it harder for microbes to evolve resistance to such drugs, as they are being attacked from a completely different direction. Molinski, a certified diver, and his graduate students make regular collecting trips to study sites in Micronesia, Western Australia and -- using a...

Freeze-dried mats of microbes awaken in Antarctic streambed

...am channel has shown that a carpet of freeze-dried microbes that lay dormant for two decades sprang to life on...r, she said. The streambeds contain photosynthetic microbes known as cyanobacteria, which collectively occur as thin, rubbery mat-like structures that can sprea...

Einstein researchers identify new way that bacteria develop resistance to antibiotics

...be able to resist fluoroquinolones--and that other microbes are already using. After studying the three-dimensional structure of a TB protein called MfpA, the researchers found that the protein contains a fold that mimics DNA. So rather than binding with DNA--and becoming a target for the fluoroquinolones--D...

Evolution of life on Earth may hold key to finding life in outer space

...xtreme environments of Earth for a rare glimpse at microbes known as extremophiles that thrive in environments...fe. Given the intense conditions under which these microbes are able to exist on Earth, the likelihood of finding life in outer space also increases. In "Fantas...

Pollution-eating bacteria produce electricity

...ng ways to eliminate pollution from waterways with microbes instead discovered that some pollution-eating bacteria commonly found in freshwater ponds can generate electricity. They present their findings today at the 105th General Meeting of the American Society for Microbiology. "The bacteria are capable of...

Shampoo detergent added to paint makes surfaces self-sterilizing

...were tested for the speed in which they killed the microbes applied to them. The coating doped with cetavlon, ...oos that is completely safe for humans, killed the microbes within seconds of application. Even after 5 months the coating could still self-sterilize within 30 ...

New bioinformatics technique for systematically analyzing key regions in DNA that help control gene activity

...st this approach on different organisms, including microbes and vertebrates," Fidelis said. The growing number of organisms whose genomes have been sequenced has generated a wealth of DNA sequence information that could provide the raw material for analysis. ...

Marine bacterium suspected to play role in global carbon and nitrogen cycles

...he true range and relationship of Archaea to other microbes is revealed, information about N. maritimus will serve as benchmarks for all microbiologists. Biochemical and genomic studies are already underway to learn the mechanisms by which N. maritimus uses nitrogen and how its physiology compares to other m...

Microbe has huge role in ocean life, carbon cycle

...n on Earth are produced by algae in the ocean, and microbes like SAR11 recycle organic carbon - producing the nutrients needed for algal growth. "Ultimately, SAR11 through its sheer abundance plays a major role in the Earth's carbon cycle," Giovannoni said. "Quite simply, this is something we need to know mo...

Discovery of T-cell 'traffic control' boosts new drug promise

...des -- the sites where they encounter antigens for microbes and other infectious agents -- they sense S1P in the outflowing blood and so migrate into the blood and onto tissues where they are needed to fight infection. In a key experiment, Goetzl's and Rosen's labs showed that by chemically displacing S1P, i...

New Lab Research May Help Those Deafened By Immune System Attack

...stem protects us from disease, destroying invading microbes with a swarm of attacking cells. But it can also go haywire for no apparent reason, ganging up on normal tissues in our body and wreaking havoc. In thousands of people each year, the immune system attacks the inner ear, home to the tiny, delicate st...

Gene discovery sheds light on causes of rare disease, cancer

...ually deals with bacteria and other large, foreign microbes through a process called phagocytosis. Specialized cells engulf the invading microbe and destroy it. Scientists long believed that cells use a second process, called endocytosis, to deal with smaller molecules or viruses. In endocytsosis, a cell's o...

Hide and seek: Researchers discover a new way for infectious bacteria to enter cells

...ually deals with bacteria and other large, foreign microbes through a process called phagocytosis. Specialized cells engulf the invading microbe and destroy it. Scientists long believed that cells use a second process, called endocytosis, to deal with smaller molecules or viruses. In endocytsosis, a cell's o...

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