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Bacterial in Biological News

August 2009 Geology and GSA Today media highlights

... seawater is through bacteria, a process known as bacterial sulfate reduction. Because bacteria are more ... of the normally observed trend resulting from bacterial sulfate reduction. This is the first documented ... in sediment pore fluids may be a unique tracer of bacterial processes that contribute to the input of iron to ...

Microbes and their hosts -- exploring the complexity of symbiosis in DNA and cell biology

... which the membership and characteristics of the bacterial community that populates the gingival crevice in ... mechanism by which the action of a single bacterial member of the oral consortium can affect the host ... produced by members of the Aeromonas veronii bacterial group in the article "Prevalence of Genes ...

Researchers capture bacterial infection on film

... their living host. Whilst most studies of bacterial infection are done after the death of the ... The researchers can also tag individual bacterial proteins to follow their movement and determine ... to film the microscopic battle between single bacterial cells and immune cells in a whole animal and in ...

Munich researchers discover new target for tailored antibiotics

... ability to produce essential compounds. Ever more bacterial strains are developing multiple antibiotic ... the structural basis of the terminal step in bacterial isoprene synthesis. The crucial enzyme has a most ... custom-tailored antibiotics. Research into the bacterial synthesis of isoprene building blocks was ...

Forsyth scientists suggest linkages between obesity and oral bacterial infection

... the researchers demonstrated that the salivary bacterial composition of overweight women differs from ... of Study In order to measure the salivary bacterial populations of overweight women, samples were ... Using DNA analysis, the researchers measured the bacterial populations of this group and compared it with ...

Spontaneous assembly

... has taken a unique look at how thousands of bacterial membrane proteins are able to assemble into ... signaling systems and is a model for studying bacterial spatial organization because its components ... complexes that localize to the poles of the bacterial cell," Liphardt said. "We wanted to understand ...

The tiny difference in the genes of bacteria

... segments in the genome of bacteria. Every single bacterial strain has such characteristic repeats. "With this method we are able to identify bacterial strains as well as clarify their genetic ... diarrhoea known as Cholera that produce a certain bacterial toxin which attacks the intestinal wall. A less ...

The tiny difference in the genes of bacteria

... segments in the genome of bacteria. Every single bacterial strain has such characteristic repeats. "With this method we are able to identify bacterial strains as well as clarify their genetic ... diarrhoea known as Cholera that produce a certain bacterial toxin which attacks the intestinal wall. A less ...

NIH expands Human Microbiome Project; funds sequencing centers and disease projects

... Commonwealth University, Richmond Vagina: bacterial Vaginosis and Sexually Transmitted Diseases $1 ... Crohn's disease, the intestinal microbiome, and bacterial proteins will be explored in samples from pairs ... Maryland School of Medicine, Baltimore Vagina: bacterial Vaginosis $980,000 This study will assess the ...

Tips from the journals of the American Society for Microbiology

... Peptide May Protect Mice from Lethal bacterial Infections Including MRSA In a new study ... death in mice suffering from life-threatening bacterial infections, such as MRSA, by activating the host ... to prevent death when challenged with lethal bacterial infections. Results showed that treatments with ...

Plant Min protein sits tight and rescues E. coli

... in plants is able to take on a similar role in bacterial cells, according to research published today in ... gene (AtMinD), in E. coli cells that lacked the bacterial genes for both MinD and MinE. Surprisingly, the ... (and other plants) encode plastid homologs of bacterial MinD and MinE, MinC is either absent or has ...

Breakthrough in the treatment of bacterial meningitis

... after the symptoms appear for someone to die from bacterial meningitis. Now, after years of research, experts ... could save the lives of hundreds of children. bacterial meningitis in childhood is almost exclusively ... disruption or modulation of this interaction of bacterial adhesins with the receptor might offer ...

Illinois Soil Nitrogen Test measures microbial nitrogen

... Specifically, amides and the amino sugars in bacterial cell walls were detected, but not alpha-amino ... was estimated to recover 95% of the nitrogen in bacterial amino sugars and 43% of amide-nitrogen. The ... amino sugars, again indicating a dominance of bacterial over fungal nitrogen recoveries by the ISNT. ...

Scientists learn why the flu may turn deadly

... healthy individuals, leading to severe secondary bacterial infections, such as pneumonia. Furthermore, this ... a much better sense of the mechanisms underlying bacterial infections arising on top of the viral ... of the immune system, leading to secondary bacterial infections. The influenza patients were compared ...

New study overturns orthodoxy on how macrophages kill bacteria

... at the superoxide dismutases that are part of the bacterial defense against ROS. There are two such enzymes ... same process," Slauch said. The fact that the bacterial mutants were less likely to survive in a mouse ... suggest that the superoxide dismutases in the bacterial cytoplasm are most likely protecting the ...

Details of bacterial 'injection' system revealed

... is a complex protein structure that traverses the bacterial cell membrane and acts as a biological syringe to ... design of new broad-spectrum strategies to combat bacterial infections," said study co-author Joseph Wall, a ... three major parts: a "bulb" that lies within the bacterial cell, a region spanning the inner and ...

Sugar on bacteria surface serves as base for a web of resistance

... shows. Scientists have determined that the bacterial cell-surface sugar, a polysaccharide called Psl, ... cell-to-cell interaction. When multiple bacterial cells join together with the help of such a ... thus prevent the development of these masses of bacterial cells. "From a clinical perspective, if we can ...

Yale researchers uncover secrets of salmonella's stealth attack

... cellular machinery to diversify the function of a bacterial protein is mind boggling,'' said Jorge Galan, ... Using this structure, Salmonella injects bacterial proteins that mimic proteins of the host cell and ... The Yale study describes the crucial role a bacterial protein called SopB plays in both Salmonella 's ...

Researchers examine bacterial rice diseases, search for genetic solutions

... University. The researchers are looking at two bacterial diseases of rice. The most costly is bacterial blight of rice, which is caused by a bacterium ... up to 50 percent. "This is the most important bacterial disease in rice, and in some areas, it is the ...

Evolutionary origin of bacterial chromosomes revealed

... one chromosome. The Rhizobiaceae is an unusual bacterial family in that all of its members have either two ... sufficient sequence data available from different bacterial species to allow the inference of a general model for bacterial genome evolution. It appears that the transfer of ...

Tips from the American Journal of Pathology

... Am J Pathol 2009, 174: 1241-1251 bacterial Toxin Leads to Systemic Infection A group led ... at Emory University, Atlanta suggests that bacterial lymphotoxin disrupts intestinal epithelial ... The American Journal of Pathology . Numerous bacterial species commonly live in the human gut. These ...

New technique used to profile anthrax genome

... of Bacteriology , marks the first time any bacterial transcriptomethe complete collection of mRNAs ... regulate their gene expression. "Sequencing a bacterial genome has gotten to be pretty routine, but going ... has been difficult, said Bergman, because bacterial mRNAs have a different structure and cannot be ...

Transport behavior of E. coli varies depending on manure source

... the following cell properties known to affect bacterial transport in the environment were measured: ... a large range in measured cell properties, bacterial recovery, and fitted transport parameters for the ... environment will likely require a distribution of bacterial attachment rates, even when modeling E. coli ...

Reversing ecology reveals ancient environments

... networks and pulls out proxies for reconstructing bacterial environments millions of years in the past. The ... you can start with an organism-say, a certain bacterial species that you know nothing about ecologically. ... current and ancient environment of hundreds of bacterial species, Borenstein and colleagues hope to use ...

Online collaboration identifies bacteria

... to collaborate on the identification of bacterial strains. This new resource, described in the open ... BMC Biology , provides a portal for electronic bacterial taxonomy. The multilocus sequence analysis ... by cumbersome procedures and every unknown bacterial isolate has to be compared to many others to find ...

New method monitors critical bacteria in wastewater treatment

... senses minute changes in chemistry related to bacterial health and yields results immediately, unlike ... because established techniques require that bacterial "biofilms" be damaged or destroyed in order to be ... into and out of the biofilm per minute. "When bacterial biofilms are poisoned, sick and stressed they ...

Human DNA repair process recorded in action

... 2006, the researchers recorded a portion of the bacterial DNA repair process, a system considerably less ... Among those are that, in contrast to their bacterial counterparts, Rad51 filaments don't grow ... surprising difference between the human and bacterial processes, Kowalczykowski said, is that Rad51 ...

New insights into a leading poultry disease and its risks to human health

... containing DNA parts exchanged among billions of bacterial encounters. Her team took advantage of the ... In all, the group found 31 genes important for bacterial virulence, with more than one quarter (26 ... acquisition. Iron is a key element necessary for bacterial health, and the pAPEC-1 portion uses redundant ...

Scientists identify bacteria that increase plant growth

... They also sequenced the genes from four selected bacterial species and screened them for the production of ... The plant material was then ground up so the bacterial species could be isolated. Individual strains ... by searching for the glowing protein. Some bacterial species were also tested for their ability to ...

NYU scientists discover dangerous new method for bacterial toxin transfer

... for bacteria to transfer toxic genes to unrelated bacterial species, a finding that raises the unsettling possibility that bacterial swapping of toxins and other disease-aiding ... for transferring toxin genes to vastly different bacterial species. Microbes have been known to gain ...

Uncultured bacteria found in amniotic fluids of women who experience preterm births

... testing considered the gold standard for finding bacterial infections. The findings were reported in ... new detection process which amplifies the 16SrRNA bacterial gene and clones it in order to identify its ... and true relationship between intra-amniotic bacterial infection and the onset of preterm birth," said ...

New technique is quantum leap forward in understanding proteins

... that, with remarkable accuracy, predicts how bacterial proteins fold and interact. In the short term, ... responsible for countless essential functions in bacterial cells including adjustment to growth conditions, ... of extensive genomic data, and some 800 or so bacterial genomes have been fully sequenced. But applying ...

New research lights up chronic bacterial infection inside bone

... infection is the third most common cause of bacterial meningitis in newborns, and can cause abortion ... and allow them to see extremely tiny amounts of bacterial cells in living animals. Using this method, they ... causing life-threatening infections, such as in bacterial meningitis in newborns. Another interesting ...

Immunity stronger at night than during day

... as phagocytosis not only are involved in clearing bacterial infection but also are implicated in a growing ... the researchers noted that flies sick with bacterial infection lost their circadian rhythm and that ... The flies were infected with two different bacterial pathogens, Listeria monocytogenes and ...

The medium is the message: Manipulating salmonella in spaceflight curtails infectiousness

... factor, and may serve to globally modify bacterial responses to microgravity, regardless of the ... related to the mechanical forces exerted upon the bacterial cell's membrane by the growth conditionsa ... of what appear to be biofilmsconglomerations of bacterial cells associated with infectious virulence. ...

Computation and genomics data drive bacterial research into new golden age

... specialists from different fields relevant to bacterial research. "A feeling emerged from the ... the full role of such molecules in controlling bacterial physiology is only just being appreciated. ... messengers operate could therefore help combat bacterial infections involving biofilms, such as ...

Properties of unusual virus revealed in research

... -- an RNA polymerase protein -- into an E. coli bacterial cell. The results, which are published in the ... infection strategies used by viruses that attack bacterial cells. Such viruses are known as bacteriophages, ... "Most phages inject only their own DNA into bacterial cells," said Katsu Murakami, a Penn State ...

Researchers study virus with unusual properties

... -- an RNA polymerase protein -- into an E. coli bacterial cell. The results, which are published in the ... infection strategies used by viruses that attack bacterial cells. Such viruses are known as bacteriophages, ... "Most phages inject only their own DNA into bacterial cells," said Katsu Murakami, a Penn State ...

Red alert! How disease disables tomato plant's 'intruder alarm'

... The new study focuses on a pathogen which causes bacterial speck disease in tomato plants. This bacterial invasion causes black lesions on leaves and ... antimicrobial compounds to fight and kill off the bacterial invader. Professor Mansfield says: ...

Winter brings flu, summer brings bacterial infections

... cold, but we're now finding that some of these bacterial infections peak in the heat of summer." ... no apparent seasonal increase in gram-positive bacterial infections, which have a slightly different cell ... for the summertime increase in gram-negative bacterial infections, the researchers said, but none are ...
Other Contents
(Date:8/19/2014)... August 19, 2014A new ovoid structure discovered in the ... contains a variety of minerals, and shows evidence of ... melting of the permafrost and mixing of surface and ... range of analytical studies to determine the origin of ... how this ovoid formed, point to the most likely ...
(Date:8/19/2014)... analyzed concentrations of African dust transported to South ... spring. These research findings offer new insight on ... of African dust, including the climate change-induced human ... increased African dust emissions in the coming decades., ... School of Marine and Atmospheric Science and colleagues ...
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