How stress maintains population levels
...l conjunctivitis is caused by a previously unknown strain of mycoplasmal gallisepticum, a bacterium that typically leads to respiratory infections in domestic poultry. The new strain, which also affects American goldfinches (Carduelis tristis) and a few other wild bird species, causes the eyes of an infect...One-two punch knocks out fly genes
...." The two scientists took an easily recognizable strain of pale-colored flies that are known to have a misspelling in the body color gene that gives normal flies a brownish-black hue. Their goal was to prove that their method could be readily used to exchange genes, by "knocking in" a correct version of ...Molecular mechanism for learning and memory is identified
...n order to locate food in an eight-arm maze. One strain of mice, called WT, had the normal GAP-43 found naturally in the mouse brain. The three genetically engineered strains had different forms of overexpressed GAP-43, in addition to the normal GAP-43. These included a form that is phosphorylatable (call...Understanding how E. coli kills cells
...tions from organ failure. The E. coli O157:H7 is a strain that contaminates hamburger and other foods. Ingestion of the contaminated food causes diarrhea and multiple organ failure, as a result of massive cell death in the kidneys and intestines. Nearly 76 million Americans a year get food poisoning and O15...Purdue researchers track deadly foodborne bacterium
...ke Salmonella, which sickens humans no matter what strain is present, only one form of the Listeria causes illness. And although cases of food illness aren't as common with Listeria monocytogenes as with other food pathogens _1.5 million cases of Salmonella annually vs. an estimated 2,500 cases of Listeria ...NIH scientists unravel clues to ebola hemorrhaging
... Coast are usually fatal to humans, while a monkey strain that infected laboratory workers in Reston, Virgin... blood vessels, possibly explaining why this Ebola strain did not cause disease in humans. As the scientists focused on GP, they found that a part of the prot...Genetic 'switch' key to biotech patent royalties
...nd control the switch in the bacteria E. coli. The strain of E. coli used in Keller's research differs from the beneficial strain existing in the digestive tract of humans or toxic strains that can exist in poorly prepared food. ...'Gatekeeper' protein is key to cellular life; links bacteria, chloroplasts and mitochondria
... In their work, Dalbey and Samuelson developed a strain of the E. coli in which YidC can be depleted. They found that when the YidC was absent, proteins could not migrate into the membranes and the bacteria died. They also looked at another specific protein called Procoat that was considered "independen...Researchers find key to tuberculosis persistence in the body
...erculosis-one containing the ICL gene and a mutant strain that lacked the gene. During the early "acute" pha...n entered the "chronic" phase, however, the mutant strain was largely eliminated by the immune system while the wild-type strain maintained peak loads in the ...Cloned pig debuts in Science, sets the stage for organ transplants
...from the beginning. Xena, cloned from cells from a strain of black pigs, has a black coat that contrasts sharply with the white coat of her surrogate mother. To confirm that Xena was a clone, however, the researchers compared the genetic "fingerprints" of Xena, the surrogate, and the donor cell line. Xena s...Scientists combine chemistry and bioremediation to clean cadmium from soil
...n be treated with a new form of bacteria, the Cd-1 strain of Klebsiella planticola, which was recently isolated by former BNL researcher Pramod Sharma from coastal salt marshes on Shelter Island in New York. Through its normal metabolic process, the bacterium converts dissolved cadmium thiosulfate to cadmiu...Canine leishmaniasis cases are confirmed in 21 states
...f the cases in different states come from the same strain of the organism. Breitschwerdt and his colleagues implemented the new diagnostic tests at the College of Veterinary Medicine last spring in response to a disease outbreak among foxhounds at a New York hunt club. When foxhounds at the club began los......archers in his laboratory "designed" and studied a strain of mice lacking the Gz protein, enabling them toconduct simultaneous research on the animals' blood systems and brain activities. "Our long-range goal is to understand what can be done to prevent platelets from being activated in the area of an injur...Biota to develop new influenza drug/Relenza® has positive results in high-risk patients
...e effects, high anti-viral activity, comprehensive strain coverage and minimal propensity to resistance. This new research and development collaboration between Biota and Glaxo Wellcome will build on the successful partnership established with Relenza. It aims to exploit Biota's expertise and leadership in ...DNA-based flu vaccine raises protective immunity
... for mutation, scientists must anticipate the next strain that will emerge when developing vaccines against ...d after the HA subtype of the particular influenza strain had been identified. DNA vaccines are still in the experimental stages. Data from this latest study ...Scientists pinpoint mechanism for UV damage to rice plants
...pair UV damage. But Norin 1, an excellent breeding strain with good taste characteristics that was used to g...(much longer than needed for enzymes from a normal strain of rice), the enzymes were able to bind and fix all the damage. Since the scientists now suspected ...Bees deliver fungicide more effectively than sprays, study finds
...gus Botrytis cineria, was a commercially available strain of a microorganism called Trichoderma harzarium 1295-22. The study was conducted from 1994 to 1997, using commercial bumblebee colonies and honeybee hives. Although flowers collected from the plants that received bee-delivered treatment had only half...Prions may play crucial role in evolution.
...antages conveyed by the prions indicated that each strain had different novel genes turned on in its prion-positive state. This prion switch is conserved in yeast across very distantly related genetic strains. Though the switch may have evolved as an accidental consequence of a shape change in an unimport......tinomycetes to a very rapidly growing fermentation strain to produce a new antibiotic in industry, it may be possible to produce the compound you are interested in," said Hill. "Isolating the compound-producing microbe or its genes is obviously a much better approach than trying to harvest and grow sponges,......d sleep function," Dr. Peters says, describing the strain characterization component of the center. "Identifying those differences will be critical in understanding the genetic interactions that produce complex human diseases." The next step is studying individuals in which a single gene has been altered. ...