Tag: "bacterial" at biology news
Scientists expand microbe 'gene language'
...tology terms for host-association functions of the bacterial
pathogens Erwinia chrysanthemi, Pseudomonas syringae pv tomato and Agrobacterium tumefaciens, the fungus Magnaporthe grisea, the oomycetes Phytophthora sojae and Phytophthora ramorum, and the nematode Meloidogyne hapla. ...
Monochloramine treatment not as effective in protecting drinking water
...ient disinfectant, requiring a longer time to kill bacterial
contaminants. Scientists have long known that monochloramine is a more stable compound, and that is part of the reason it is becoming more popular as an alternative to chlorine in municipal water systems. Free chlorine has traditionally been the d...
News tips from the Journal of Neuroscience
...CNS injury. This week, Cafferty et al. exploit the bacterial
enzyme chondroitinase ABC (ChABC), which can digest CSPGs, to reopen the roadway. The authors made a transgenic mouse that expressed ChABC in astrocytes under the control of the gfap promoter. After dorsal hemisection of the spinal cord, corticospi...
Biophysical Society announces new and notable symposium speakers
...ages of the receptor-kinase complex that regulates bacterial
chemotaxis. In recent years it has been proposed ...at share the same general chemotaxis pathway. The bacterial
chemotaxis pathway is widely discussed as a paradigm system in signaling biology. The Structural ...
Swimming 'to the left' gets bacteria upstream, and may promote infection
...e, but near a surface, opposing forces of flow and bacterial
forward motion cause the bacteria to continuously swim to one side to the left." The study determined that swimming "to the left" is a hydrodynamic process that is fundamentally related to the way the cells propel themselves in this manner. Kser ...
Manual dishwashing study digs up dirt on dish cleanliness
... trays, steel forks seemed to be the best home for bacterial
contaminants. "The prongs of forks actually shield food from the action of scrubbing," Pascall said. "Taking extra time to wash forks is a good idea, especially those covered with sticky foods like cheese." Although cheesy forks were the most pro...
E. coli bacteria migrating between humans, chimps in Ugandan park
... the journals Web site. Other studies have found bacterial
exchanges between humans and non-human primates particularly in areas where the animals are known to frequent garbage piles near human settlements. But this is the first study to document the exchange of E. coli between humans and chimps in a protec...
JCI table of contents -- February 22, 2006
...utrophil defects made the mice more susceptible to bacterial
infection than normal mice. Because the protein co...eutrophil activity and increased susceptibility to bacterial
infection in mice lacking glucose-6-phosphatasebeta AUTHOR CONTACT: Janice Y. Chou National Instit...
Bacteria could steady buildings against earthquakes
...sand grains, cementing them together. By injecting bacterial
cultures, additional nutrients and oxygen, DeJong and his colleagues found that they could turn loose, liquefiable sand into a solid cylinder. "Starting from a sand pile, you turn it back into sandstone," DeJong said. Similar techniques have been u...
Mathematical model predicts cholera outbreaks
...problem in many parts of the world, results from a bacterial
infection. The bacterium takes up residence in the intestines, causing vomiting and diarrhea, which can lead to severe dehydration and death if patients are not promptly treated....
IDIBAPS participates in European Network on antibiotic resistances and hospital infections
...R members are highly involved in the fight against bacterial
resistances. MOSAR is a 5-year integrated project, i.e., aiming to emphasize the scientific results. It has been financed with 10 million Euro by the European Commission, within the Seventh Framework Programme for Research And Development (FPRD). ...
Newly discovered West Coast arrhythmias cause
...logically diverse habitat was covered with a white bacterial
mass, indicating that the system had turned from low to no oxygen. "The fact that we saw no fish - alive or dead - suggests that many were able to escape," says Lubchenco. "In previous years, fish that have escaped the low-oxygen area appear to ha...
News tips from the Journal of Neuroscience
...al. mapped the zebrafish axonal projection using a bacterial
artificial chromosome transgene. The transgene contained a cluster of 16 OR genes, two of which (OR1117 and OR1031) were replaced with yellow and cyan membrane-targeted reporters. Distinct sets of OSNs were fluorescently labeled, whereas their axons ...
Harvard team creates spray drying technique for TB vaccine
...oving salts and cryoprotectants like glycerol from bacterial
suspensions," explains Edwards. "This is counter t... cryoprotectants act like knives that press on the bacterial
membrane with great force and inactivate the bacteria. By removing these, we managed to save the bac...
Shedding new light on proteorhodopsin
...search shows that proteorhodopsin contributes to a bacterial
cell's energy balance only under certain environme...CB). "By harvesting light, proteorhodopsin enables bacterial
cells to supplement respiration as a cellular energy source. This ability to withstand oxygen depriv...
BioMed Central announces winners of first open access research awards
...h-resolution quantitative imaging of mammalian and bacterial
cells using stable isotope mass spectrometry" ...
Human skin harbors completely unknown bacteria
... is the first study to identify the composition of bacterial
populations on the skin using a powerful molecular...r. Blaser's laboratory has previously examined the bacterial
population in the stomach and the esophagus. "Many of the bacteria of the human body are still unkno...
Risk of preterm birth appears to vary by season
...nant when the immune system is primed by viral and bacterial
exposures may be a factor weeks down the road." "There have been studies in Africa of preterm birth in famine or non-famine seasons, but this is perhaps the most rigorous look at preterm birth rates by season in such a large population in an indust...
Cholera pathogen reveals how bacteria generate energy to live
... ion pump needs to carry ions from one side of the bacterial
membrane to the other, the enzyme has to reach all the way from the water-like medium inside the cell, through the oily membrane interior, to the water-like environment outside the cell. For this reason, the enzyme is made up of water-soluble and oi...
New approach could lower antibiotic requirements by 50 times
...ine. It is the phages' ability to channel through bacterial
cell membranes that boosts antibiotic effectiveness. 'Pseudomonas bacteria for example are particularly multi-resistant to antibiotics because they have efflux pump mechanisms that enable them to throw out antibiotics. A pore in the cell wall would o...
1 2 3 4 5 6 7 8 9 10