Sentences with phrase «lab strains of»

Pletcher's group exposed two lab strains of fruit flies on caloric restriction to smells created by live yeast, an important constituent of the fly's diet.

The big community of researchers regularly studying C. elegans had missed discovering the selfish role for a simple reason: The main lab strain of nematodes carries the selfish element, explains study coauthor Eyal Ben - David.

Like many influenza virologists, John Steel of Emory University in Atlanta often uses a feeble lab strain of influenza in his studies of how seasonal flu spreads.

Not exact matches

The company currently uses a lab test that takes a minimum of eight hours, and sometimes up to a day or two, to get a readout of what phage or phages will work best against a particular strain of bacteria.

LAB with improved functionality of colonic strains has been achieved in presence of prebiotics such as non-digestible components viz., glucan, arabinoxylan, oligosachharides, resistant starch in cereals; and glucose, fructose, hemicelluloses and dietary fibersin fruits and vegetables.

Probiotic strains of lactic acid bacteria (LAB) can also bring health benefits by releasing bioactive peptides.

Stability of Antiradical Activity of Protein Extracts and Hydrolysates from Dry - Cured Pork Loins with Probiotic Strains of LAB

The microfluidic technology, developed in the lab of professor Mark Hayes in the Department of Chemistry and Biochemistry at Arizona State University, uses microscale electric field gradients, acting on extremely small samples, to tell the difference between the two strains (antibiotic - resistant and antibiotic - susceptible) of Staphylococcus epidermidis.

Strains of the lab workhorse roundworm C. elegans that lived longer added more time being frail and had the same portion of their lives being healthy as normal worms.

FOLLOWING an astonishing blunder that may have allowed a lethal pandemic flu strain to escape from the lab, researchers are calling for a higher level of security to be imposed on work with flu viruses.

The intact virus is pretty redundant as a research tool: the genomes of many strains have been thoroughly sequenced and key proteins required by the functioning virus can be made in the lab.

It was kind of a silly thing — identifying how much iron a particular strain of yeast needed to grow optimally but it hooked me on science and lab work.

After eradication, the WHO closed smallpox research labs across the world and destroyed all stocks of the virus except for two duplicate sets of representative strains, which were kept for research in two high - security establishments.

In lab tests, the material killed 99.97 percent of MRSA, the strain of Staphylococcus aureus that is resistant to methicillin and other antibiotics, and 99.85 percent of a multidrug - resistant strain of E. coli.

Prior tests found that high concentrations of the soccer ball — shaped buckyballs can kill pure strains of bacteria growing in the lab.

In the lab, the team mixed each strain of K. veneficum with a species of algae on which it preys, and recorded the three - dimensional motions of thousands of cells using a high - speed holographic microscopy technique they described in 20071.

Now, an international team of scientists led by Stewart Cole's lab at EPFL's Global Health Institute have isolated, sequenced and analyzed the genomes of 154 strains of M. leprae from around the world.

Columbia University microbiologist Vincent Racaniello, who helped develop the first artificial virus in the 1980s, cites the stir created four years ago when nearly 5,000 labs seeking accreditation were mistakenly shipped vials of the 1957 pandemic flu strain as part of their test kits.

As a graduate student in the lab of microbiologist John Boothroyd of Stanford University School of Medicine, Pernas questioned two existing assumptions: that all three main strains of Toxoplasma interact with mitochondria in the same way, and that the key protein underpinning this relationship had already been found.

Conlon's team is now sequencing P. aeruginosa strains to see how gene sequences vary between strains and how this variance affects the ability of these strains to produce the aforementioned factors Conlon's lab has described.

So, researchers at CDC and collaborators used a lab technique called reverse genetics to make combinations of H3N2, a seasonal human flu strain, and the 1997 strain of H5N1.

Then the researchers pitted the bugs against a batch of susceptible strains, dumping both onto lab dishes to see which would reproduce more effectively.

Department of Energy national lab researchers found strain dramatically influences low - temperature oxygen electrocatalysis on perovskite oxides, enhancing bifunctional activity essential for fuel cells and metal — air batteries.

In lab tests, bacterial strains of the genera Bacillus, Lactococcus, Pantoea and Burkholderia effectively inhibited the growth of Pseudomonas bacteria isolated from infected acacia leaves.

Gilmore's lab sequenced the toxin producing E. faecium strain as part of a much wider search for the origins of enterococcal antibiotic resistance and disease - causing ability.

Lab tests found the exact same strain of GBS that had infected the baby in the placenta pills.

Investigators found four other incidents in the past decade when deadly pathogens were mishandled, including an event in March when a sample of the avian flu strain H5N1 was contaminated with a more lethal strain and accidentally shipped to a USDA lab without proper protections.

Researchers at the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have engineered a strain of bacteria that enables a «one - pot» method for producing advanced biofuels from a slurry of pre-treated plant material.

Proponents of PPP experiments argue that by studying the properties of transmissible, virulent flu in the lab, we can better prepare for strains that become pandemic naturally — for example, by developing «prepandemic» vaccines.

Prather's lab has previously engineered E. coli to produce glucaric acid by adding three genes — one each from yeast, mice, and a strain of bacteria called Pseudomonas syringae.

By isolating five bacterial strains of endophytes found inside S. halepense rhizomes (subterranean stems used for storage and vegetative reproduction) and growing them in the lab in different mixtures of substrates, the authors determined that these microbes were able to fix and mobilize nitrogen, phosphorus, and iron.

The researchers studied growth rates and lag times in both lab strains and wild yeast by varying the amount of its prime carbon food source, glucose.

«It's a nasty virus if you're a mouse» but doesn't sicken humans, Steel says of this 80 - year - old lab strain, known as PR8.

Roundy begins the tests in Weaver's lab by mixing a specific strain of Zika with human blood donated by a local hospital.

The exciting thing is that RNase E is found in many pathogenic bacteria as well as the harmless strain of E. coli we study in the lab.»

Although Jackson Lab probably stocks some 200 strains of mice with disordered personalities, the world still does not have enough — or good enough — crazy mice.

His lab is looking to see if other materials can show the same behavior and if mechanical strain can affect the superconducting properties of the material (these experiments were not carried out at temperatures where BaFe2As2 is a superconductor).

Today, the company announced that sequencing at its lab in Darmstadt, Germany, in collaboration with the nearby University of Münster, «strongly suggests that the bacterium... is a new hybrid type of pathogenic E. coli strains.»

That very likely means that the virus will transmit between humans as well, Fouchier told ScienceInsider last month, adding that the lab strain is «probably one of the most dangerous viruses you can make.»

One panelist was David Furlow, a University of California at Davis endocrinologist with extensive experience in rat - strain variations and how they can affect outcomes in the lab.

The lab identified the E. coli strain as a variant of ST405, one of the main disease - causing strains of the bacteria.

His lab grows row upon row of corn in upstate New York, crossbreeding one reference strain — the widely grown B73 — with 25 different varieties.

In lab dishes with the bacterium and the fungus, P. putida grew six times as dense as did a mutant strain of the bacterium that couldn't swim.

His lab has created a strain of flies in which broken chromosomes are common due to the expression of a DNA - cutting enzyme.

Last December, Peter Stäheli and his team at the University of Freiburg, Germany, reported that most of the human isolates found so far were most closely related to the strains used in the labs that had found them — suggesting the findings had been artifacts, caused by contamination.

The flu incident occurred in March when a sample of a relatively benign avian flu was accidentally contaminated with a deadly influenza strain at a CDC lab before being sent out.

Researchers Herman Dierick and Ralph Greenspan of The Neurosciences Institute in San Diego, California, set out to see if they could breed high levels of belligerence back into lab strains and to learn what genes might be implicated.

These assays were used to study the more than 1000 isolates of the Ames strain — the strain used in the attacks — that the FBI rounded up from 16 U.S. labs, including USAMRIID, and labs in Canada, Sweden, and the United Kingdom.

A large - scale study of two strains of lab mouse by Viola André, Martin Hrabé de Angelis and co-authors shows that the inclusion of nesting material and shelters as environmental enrichment does not impair the scientific assessment of a battery of 164 physiological parameters in mice.

«So far, no one has looked across a variety of strains of bacteria, as we have done with Staphylococcus aureus, to find these extrachromosomal phages that have potential to play an important role in disease,» says Bryan Utter a postdoc in the lab and the first author of the research published June 25 in PLoS ONE.