bacterium 2 3

Tag: "bacterium" at biology news

Deep thinking: Scientists sequence a cold-loving marine microbe

At home in the deep, dark Arctic Ocean, the marine bacterium Colwellia psychrerythraea 34H keeps very cool--typically below 5° degrees Celsius. How does the bacterium function in this frigid environment? To find out, scientists at The Institute for Genomic Research (...

Scientists reveal how disease bacterium survives inside immune system cell

New research on a bacterium that can survive encounters with specific immune s...respond to Anaplasma phagocytophilum, a tick-borne bacterium that causes granulocytic anaplasmosis in people, dogs, horses and cows. A. phagocytophilum is carrie...

International Team Determines Geographic Origin of Leprosy

...ified rare genetic variations among strains of the bacterium that causes leprosy, included Patrick J. Brennan, ... the genetic material of Mycobacterium leprae, the bacterium that causes leprosy, for tiny variations known as single nucleotide polymorphisms (SNPs). SNPs, pron...

Researchers develop new method for facile identification of proteins in bacterial cells

...rcing an up-regulation of enzyme expression in the bacterium of interest, our target can be identified amidst a... using Sphingomonas wittichii strain RW1, the only bacterium known to consume the backbone of toxic polychlorinated dibenzo-p-dioxins and dibenzofurans as a food...

A virus-like hitchhiker may trigger bacterial meningitis

...insley may have discovered how a normally harmless bacterium can sometimes trigger outbreaks of life-threatening meningitis. The human body harbors many harmless bacterial residents, known as commensals. One such bacterium, called Neisseria meningitidis, makes its home in the upper respiratory tract, usually ...

Novel plague virulence factor identified

... unknown family of virulence factors that make the bacterium responsible for the plague especially efficient at...for studying the virulence of Yersinia pestis, the bacterium that causes plague. They also showed that the interaction between Y. pestis and the worm is quite si...

New Look at DNA Hints at Origin of UV Damage

... unknown family of virulence factors that make the bacterium responsible for the plague especially efficient at...for studying the virulence of Yersinia pestis, the bacterium that causes plague. They also showed that the interaction between Y. pestis and the worm is quite si...

Bacteria use host's immune response to their competitive advantage

...In a mouse model, Haemophilus influenzae--a common bacterium that infects children--stimulates the immune system to send out specialized white blood cells that attack its competitor, Streptococcus pneumoniae--a leading cause of pneumonia. "It is striking that the host's response can so completely eliminate the...

Insects develop resistance to engineered crops

...ts, report Cornell University researchers. A soil bacterium called Bacillus thuringiensis (Bt), whose genes ar...t, genetically modified (GM) Bt plants express the bacterium in the plant tissue, which makes Bt plants especially effective against insects that bore into stems...

Scientists devise way to measure RNA synthesis on the fly in a live cell

...ap when genes are switching off and on in a living bacterium as it becomes exposed to antibiotics and other changes in its environment. The technique, which is announced in the Monday, June 13 issue of the Proceedings of the National Academy of Sciences, could help scientists discover new drugs and learn to w...

Beyond genes: Lipid helps cell wall protein fold into proper shape

...ransports an amino acid across the membrane of the bacterium E. coli, is affected by the presence of a phospholipid named phosphatidylethanolamine, or PE for short. Phospholipids, unlike their fatty acid and cholesterol cousins, include a phosphate group that spurs them to form a bilayer with water-friendly o...

Bacteria recognize antimicrobials, respond with counter-defenses

...ming more virulent. Their studies were done on the bacterium Salmonella typhimurium. The findings were published in the Aug. 12 edition of Cell. Salmonella typhimurium can contaminate meats such as beef, pork, chicken, as well as cereals and other foods, and cause severe intestinal illness. Certain strains o...

Researchers predict infinite genomes

... independent isolates of Bacillus anthracis (the bacterium that causes anthrax), for instance, Tettelin and colleagues found that just four genomes were sufficient to characterize its pan-genome. That raises interesting questions about rates of evolution, notes Fraser. "We're intrigued to learn more about th...

Device traps, disables harmful bacteria

...bination approach that appears very effective. The bacterium that had been causing illness was Mycobacterium avium, which can make immunocompromised people ill, and since a lot of elderly use therapy pools, that's a concern. However, since using the filters, no one has gotten sick." The researchers also teste...

Vineyard weeds found to host Pierce's disease of grapes

...ierce's disease is caused by Xylella fastidiosa, a bacterium transmitted by sharpshooters and spittlebugs. In r...d in California's San Joaquin Valley to see if the bacterium could survive on the weeds. Perennials and known feeding and breeding hosts of the glassy-winged sha...

NHGRI Selects 13 More Organisms for Genome Sequencing

...ndworms, over a dozen fungi, baker’s yeast and the bacterium Escherichia coli. Organisms currently in the NHGRI sequencing pipeline include: macaque, orangutan, cow, platypus, red flour beetle, several additional species of fungi and domestic cat. A complete list of organisms and their sequencing status can be...

Possible treatment found for 'chemobrain'

...ndworms, over a dozen fungi, baker’s yeast and the bacterium Escherichia coli. Organisms currently in the NHGRI sequencing pipeline include: macaque, orangutan, cow, platypus, red flour beetle, several additional species of fungi and domestic cat. A complete list of organisms and their sequencing status can be...

Pollution-eating bacteria produce electricity

...es Milliken's and May's discovery so unique is the bacterium itself. It is the member of a genus known as Desulfitobacterium, which up until now was not known to have the capacity to generate electricity. These bacteria are most commonly known for their ability to breakdown and detoxify some of the most proble...

Colorful bacteria more dangerous

...nown for many years that gold-colored strains of a bacterium called Staphylococcus aureus tend to be cause more disease than colorless strains. The color of these bugs comes from anti-oxidant molecules called carotenoids. Similar molecules also give carrots their color and are often touted for their ability to...

Researchers find how some antibiotics kill bacteria

...rase is the machinery that keeps bacteria going ?a bacterium cannot carry out gene expression without it. Cut o...er pathogens including Neisseria meningitidis, the bacterium that causes one form of meningitis; Helicobacter pylori, which causes stomach ulcers; and even some ...

1 2 3 4 5 6 7 8 9 10