Frog skin and supercomputers lead Penn chemists to designing better bacteria killers
...rylamide polymer can disrupt the cell membranes of bacteria without harming the membranes of other types of ce...id membranes, will make it much more difficult for bacteria to evolve resistance," Doerksen said....Scientists develop new cloning technique that dramatically shortens the search for genes
...ants and animals. However, there are soil-dwelling bacteria that transform atmospheric nitrogen into a compoun...ical signaling that occurs between nitrogen-fixing bacteria and plants. Researchers have discovered that Medicago and other legumes allow bacteria to invade the......the more recent divergence of many other groups of bacteria from their ancestral relatives. The genome study i...w deciphering the genomes of six other oral-cavity bacteria and conducting a "meta-genomic" assay of mouth microbes. Of the estimated 500 microbial species in t...NIST-led research de-mystifies origins of 'junk' DNA
...rise to animals and their relatives) diverged from bacteria roughly 2 billion years ago (the "introns-late" view). Bacterial genomes lack introns. Although the study did not attempt to propose a function for introns, or determine whether they are beneficial or harmful, the results appear to rule out the "intr...Case researchers substantiate bacterial link to preterm birth through mice studies
...omen who had given birth to preemie babies. These bacteria also provided the same results in mice to forge an even stronger link between the oral bacteria and preterm births and its transmission to the placenta through the blood. After the bacteria were ...Study points to possible cause of asthma exacerbations
...ccurring environmental contaminant that comes from bacteria and is found in household dust, grain dust and objects such as pillows. The presence of receptors for endotoxin would lead to interaction between the epithelial cell and the endotoxin and potentially cause inflammation. The study appeared in the Dece...Germany starts clinical development of a new tuberculosis vaccine
...n Kaufmann. "The vaccine consists of an attenuated bacteria that is very closely related to the TB pathogen, M...G vaccine is assumed to be limited because the BCG bacteria are hidden in the body cells inside so-called phagosomes. The group of Professor Kaufmann, therefore...Antibiotics in the environment
...ome potential for increase in antibiotic resistant bacteria in the environment. This is another facet that Gupta and his team are quantifying....Researchers identify the pattern of gene-expression changes for tuberculosis in a living host
...ion in vivo is central to our understanding of how bacteria colonize, invade and interact with or disrupt the normal host-cell functions and eventually produce disease," the researchers write....Fetal lungs provide a signal initiating labor, UT Southwestern researchers find
...the next step, Dr. Mendelson said. "We think that bacteria may be binding to the same receptor on the macrophages to cause preterm labor in women. The bacteria mimic the function of SP-A, initiating the chemical reactions that lead to premature labor. If we kn...Tips from the Journals of the American Society for Microbiology
...heese-Making Bacteria Survive Pasteurization The bacteria involved in the ripening of cheeses may find their...ains of Lactobacillus plantarum, one of a group of bacteria known as nonstarter lactic acid bacteria (NSLAB) believed to be essential to the ripening process an...'Male-killer' bacterium's genome is deciphered
... impossible to grow sufficient quantities of these bacteria outside their host. But now that Scott O'Neill, Jonathan Eisen, and colleagues have sequenced the complete genome of one strain of Wolbachia pipientis, scientists are already gaining new insight into the biology and evolution of Wolbachia-host intera...'Male-targeting' bacterium's genome is deciphered
...t members of the Wolbachia family of intracellular bacteria manipulate the reproduction of their host to help ...ight on the biology and evolution of these amazing bacteria by deciphering and analyzing the genome of a model Wolbachia strain, Wolbachia pipientis wMel, which...Bacteria live in the esophagus!
...o the stomach, it also provides an environment for bacteria to live, according to a new study by NYU School of...the National Academy of Sciences demonstrates that bacteria do indeed live in the esophagus, and these microbes are a diverse bunch. "This study provides eviden...Germ-free transparent fish open new window into gut development
...nimal including humans is home to "friendly" gut bacteria that help digest food and perform other important ...ifying the genes and chemicals that allow friendly bacteria to enhance our health." Gordon is the Dr. Robert J. Glaser Distinguished University Professor and he...Microbe's trick provides a template for willowy crystals
...stals for a variety of purposes. For example, some bacteria make magnetite to aid navigation, and others use their powers of biosynthesis to sequester toxic metals such as uranium. But the structure of the crystals made by the microbes in the Piquette Mine was unexpected, "given the conditions under which the...Viruses may be environmentally friendly decontaminants
...acteria, to reduce the level of spores made by the bacteria Bacillus thuringiensis a close but harmless relative of the organism that causes anthrax. Treatment of the soil with bacteriophage resulted in a significant reduction in spore contamination. "This study demonstrates the feasibility of decontaminat......y of changes in gene expression covering taxa from bacteria to human published in the PNAS Online Early Editio...ife sciences researchers, including the intestinal bacteria E. coli, the yeast S. cerevisiae, Arabidopsis thaliana (thale cress), the fruit fly Drosophila melan...Study examines role of helicobacter pylori in esophageal cancer development
Infection with bacteria that can cause peptic ulcers and distal stomach cancer may be associated with a reduced risk of a type of esophageal cancer called adenocarcinoma, according to a study in the March 3 issue of the Journal of the National Cancer Institute . However, t...From corn to carp to the bacteria in yogurt, people have modified organisms for specific traits for centuries. Today, genetic engineering offers the potential to provide new benefits and new risks, as does any new technology. The Ecological Society of America (ESA)'s scientific posi...