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e. coli bacteria's defense secret revealed




by tagging a cell's proteins with fluorescent beacons, cornell researchers have found out how e. coli bacteria defend themselves against antibiotics and other poisons. probably not good news for the bacteria.



e. coli bacteria found in drinking water at us open




rory mcilroy, of ireland, makes his way to the 12th hole during the first round of the u.s. open golf tournament thursday, june 15, 2017, at erin hills in erin, wis. (ap photo/charlie riedel)health officials say e. coli bacteria have been found in a drinking water station at erin hills golf course w...



how bacteria maintain and recover their shape




image: a theoretical model (left) quantitatively predicts how e. coli (right) grown in confined, micro-chambers recover their straight, rod-like morphologies over time. view more credit: (image courtesy of harvard seas)bacteria come in all shapes and sizes -- some are straight as a rod, others twi...



e. coli bacteria's defense secret revealed




image: in the periplasm -- the space between the inner and outer membranes of a bacteria's cell wall -- defensive proteins that detect a poison assemble like barrel staves to form... view more credit: ace george santiago, cornell universityby tagging a cell's proteins with fluorescent beacons, cor...



model predicts how e. coli bacteria adapt under stress




researchers at the university of california san diego have developed a genome-scale model that can accurately predict how e. coli bacteria respond to temperature changes and genetic mutations. the work is aimed at providing a comprehensive, systems-level understanding of how cells adapt under enviro...



smucker recalls flour over possible e. coli contamination




smucker foods of canada has recalled three brands of flour in the u.s. due to possible e. coli contamination.the recall affects 20 lb. bags of golden temple, swad and maya brand flour, which were shipped from canada to the u.s. the producer and distributor of the brands, ardent mills, was also respo...



escherichia coli bacteria hijack copper, feed off it




copper has long been known for its ability to kill bacteria and other microbes.



new technology could offer cheaper, faster food testing




the foodborne pathogen escherichia coli o157 causes an estimated 73,000 illnesses and 60 deaths every year in the united states. better safety tests could help avoid some of the illnesses caused by this strain of e. coli and other harmful bacteria, according to mit researchers who have come up with ...



new fundamental insight into the battle against bacteria




a diagram of the h-ns protein. depending on the environment, the protein can be in an 'open' or 'closed' form, switching genes on or off. credit: leiden universitythe intestinal bacterium e. coli can adapt to changes in its surroundings. leiden scientists have discovered how the h-ns protein makes t...



antimicrobial resistance: successful interdisciplinary efforts




"antimicrobial-resistant bacteria pose a complex challenge. this is why germany, with its german antimicrobial resistance strategy dart2020, is making sustained efforts to protect the health of humans and animals", says bfr president professor dr. dr. andreas hensel. "in the spirit of the one health...



helium ions reveal how viruses attack bacteria




bacteriophages (green) attached on e. coli bacteria (blue) on an agar substrate (brown), imaged with a helium ion microscope. credit: university of jyväskyläan interdisciplinary research consortium from the nanoscience center at university of jyvaskyla in finland (group leaders dr. lotta-riina sun...



virus's multipronged attack on bacteria points to new ways to fight infection




phages attack a bacterium. credit: imperial college londonresearchers have uncovered how a virus uses a two-pronged attack against a single protein to kill bacteria. the international group, led by scientists from the mrc centre for molecular bacteriology & infection at imperial college london, beli...



scientists investigate how the sense of smell works in bacteria




image: the mechanism of transmembrane signal transmission by sensor protein narq. view more credit: ivan gushchin, miptscientists from mipt, in collaboration with their colleagues from the forschungszentrum jülich, the institut de biologie structurale (ibas) and european synchrotron radiation fac...



scientists investigate how the sense of smell works in bacteria




the mechanism of transmembrane signal transmission by sensor protein narq. credit: ivan gushchin, miptscientists from mipt, in collaboration with international colleagues, have proposed a universal mechanism for the sense of smell in bacteria. the researchers obtained the structure of the narq prote...



how bacteria hunt other bacteria




a bacterial species that hunts other bacteria has attracted great interest as a potential living antibiotic, but exactly how this predator tracks down its prey has not been clear. a study published march 28 in biophysical journal sheds light on this question, revealing that the bacterial predator bd...



irish sun - three south dublin beaches issues do not bathe warnings




swimmers were issued the warning after authorities found high levels of bacteria high levels of e.coli and enterococci were present in the watersome strains of the bacteria cause diarrhoea, severe anaemia and kidney failuredublin, ireland - local authorities are said to have discovered high levels o...



stress may protect—at least in bacteria




antibiotics harm bacteria and stress them. trimethoprim (tmp), an antibiotic, inhibits the growth of the bacterium escherichia coli and induces a stress response. this response also protects the bacterium from subsequent deadly damage from acid. antibiotics can therefore increase the survival chance...



researchers develop cheaper, faster test for e. coli in drinking water




researchers at the university of waterloo have invented a fast, affordable way for developing communities to test their drinking water for potentially deadly e. coli.unlike current tests that cost about $70 and can take up to three days to get back from the lab, the waterloo invention uses paper str...



crystallography provides battle-plan blueprints for attacking disease-causing ba




scientists from trinity college dublin have gained key structural insights into the machinery employed by opportunistic, disease-causing bacteria, which may help chemists design new drugs to inhibit them. the scientists, led by fellow emeritus in trinity's school of biochemistry and immunology, prof...



et tu, e. coli? | eurekalert! science news




so they can't use smartphones or wifi, but bacteria have evolved some seriously complex strategies to communicate with one another. and the resulting interactions are a delicate balance of cooperation and, in some cases, competition.these intraspecies exchanges take place within contact-dependent gr...



four-billion-year-old 'fossil' protein resurrected in bacteria protects them fro




this figure shows two possible outcomes from a viral attempt to infect the cell. on the left, the virus binds to the bacterium, injects its genetic info, and stops because it can't recruit the needed proteins. on the right, the virus binds to the cell, injects the genetic info, recruits the proteins...



bacteria can feel their surroundings




a culture sample of electrically excited bacteria as seen under a microscope. credit: giancarlo brunifor humans, our sense of touch is relayed to the brain via small electrical pulses. now, university of colorado boulder scientists have found that individual bacteria, too, can feel their external en...



learning the rules of antibiotics to make old drugs work on new bugs




enlargegetty | bsipshare this storybacteria come in two flavors: gram-positive and gram-negative. gram is a violet dye, named for its discoverer, that is more readily taken up by some microbes (the gram-positive ones) than by others (you guessed it, the gram-negative ones). gram-negative bacteria ...



learning the rules of antibiotics to make old drugs work on new bugs




enlargegetty | bsipshare this storybacteria come in two flavors: gram-positive and gram-negative. gram is a violet dye, named for its discoverer, that is more readily taken up by some microbes (the gram-positive ones) than by others (you guessed it, the gram-negative ones). gram-negative bacteria ...



stop microwaving your dirty sponges




kitchen sponges are notorious for being bacteria-ridden. by some estimates, they are dirtier than toilet seats. strains of germs range from campylobacter, salmonella, and staphylococcus to e. coli and listeria. yuck. "that thing is very dirty," philip tierno, a microbiologist and pathologist at the ...