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Spores in Biological News

C. difficile spores spread superbug

New research suggests that antibiotic treatment could be asymptomatically inducing the transmission of the healthcare-acquired infection, C. difficile , contributing to the outbreaks that have recently been widely reported in hospitals and other settings. A team of scientists have successfully mi...

In many fungi, reproductive spores are remarkably aerodynamic

CAMBRIDGE, Mass., Dec. 23, 2008 -- The reproductive spores of many species of fungi have evolved remarkably drag-minimizing shapes, according to new research by mycologists and applied mathematicians at Harvard University. In many cases, the scientists report this week in the Proceedings of th...

Researchers track how spores break out of dormant state

Tapping into the unknown world of awakening dormant bacterial spores, researchers have revealed through atomic force microscopy (AFM) the alterations of spore coat and germ cell wall that accompany the transformation from a spore to a vegetative cell. When starved of nutrients Bacillus (rod-shap...

Single molecular 'mark' seen as pivotal for genome compaction in spores and sperm

In higher order animals, genetic information is passed from parents to offspring via sperm or eggs, also known as gametes. In some single-celled organisms, such as yeast, the genes can be passed to the next generation in spores. In both reproductive strategies, major physical changes occur in the g...

Airborne mold spores increase kids' risk for multiple allergies

University of Cincinnati (UC) researchers say exposure to a certain group of fungal spores--abundant in the air that we breathe every day--can make young children more susceptible to developing multiple allergies later in life. The team found that infants who were exposed to basidiospores and ot...

Anthrax spores may survive water treatment

Anthrax spores may survive traditional drinking water disinfection methods and can attach themselves to the inside surface of water pipes, suggesting water treatment facilities should be prepared to employ alternate disinfection methods in the unlikely event of the release of anthrax in the water s...

Life on Earth came from other planets

... hundreds of millions of years. The inner layers of a nebular cloud and protoplanetary disk also protects against radiation and extreme cold, enabling spores to survive. Numerous published studies have proven that microbes can easily survive an interplanetary journey. Many species of microbe have evol...

Data published in the New England Journal of Medicine support use of raxibacumab (ABthrax) for the treatment of inhalation anthrax

...ted quickly to provide a significant survival benefit to animals showing clinical signs of disease caused by exposure to a dose of aerosolized anthrax spores that was approximately 200 times the median lethal dose. We also note that the safety profile shown in healthy human volunteers provides support for ...

Novel handheld device detects anthrax with outstanding accuracy and reliability

...detection device in discriminating between anthrax spores and similar-looking hoax substances. The data sho...t light and special algorithms to detect bacterial spores and provides test results within minutes, without ...nt inability to easily distinguish between anthrax spores and harmless white powder. These new data definit...

When palm trees gave way to spruce trees

...n was beginning to open, and lying now at the bottom of today's Norwegian-Greenland Sea. Sediment cores taken from there contained a record of ancient spores and pollen blown from the continent to the west. "These marine sediment cores give us a very precise chronology of the changes in the dominant land...

New species of phallus-shaped mushroom named after California Academy of Sciences scientist

... and elongates over four hours," says Desjardin, who is also a Fellow of the California Academy of Sciences. "Its odor attracts flies who consume the spores and disperse them throughout the forest." Desjardin and Perry named the new species after Drewes as an acknowledgment of his "inspiration and forti...

Yeast missing sex genes undergo unexpected sexual reproduction

...Reedy explored the question further in a study appearing in the May 14 Current Biology . The major question was: how could the yeast sexually produce spores when they lack so many genes responsible for meiosis, the process of sexual cell division that reduces chromosomes to half their number in the progeny...

UCSD researchers make first direct observations of biological particles in high-altitude ice clouds

...all 2007. Analysis of the ice crystals revealed that they were made up almost entirely of either dust or biological particles such as bacteria, fungal spores and plant material. While it has long been known that microorganisms or parts of them get airborne and travel great distances, this study is the first...

Mass Biologic Labs/UMass Med School and Medarex license C. difficile monoclonal antibody to Merck

...in the presence of antibiotics administered for other infections, in which the complex microbial makeup of the GI tract is altered, and C. difficile spores may germinate, grow, and produce toxins A and B. The toxins cause damage to the GI tract lining in the colon, resulting in severe diarrhea, and may l...

Corrosion-inhibiting coatings containing 'good' bacteria

...March), Jeanette Gittens and colleagues described how they had encapsulated spores from a bacterium into a sol-gel coating which then protected an aluminium a...n-preventing bacteria occur naturally in the environment. Incorporating its spores into the coating did not seem to affect their viability living cells were ...

New wheat disease could spread faster than expected

...rst thought. The research, in fact, used stripe rust of wheat, which has spores that can spread on the wind, as a model to help explain how this and other ...ay. However, a significant number of pathogens can be borne by wind-carried spores or migrating birds. In those cases, even though only small amounts of an in...

Airborne asthma allergens

... A survey of airborne fungi and fungal spores found in Eastern Puerto Rico suggests that certain species may be a major cause of the high incidence of childhood asthma in this part of the world. A...

Holy guacamole: invasive beetle threatens Florida's avocados

...t of invasive species like the Redbay Ambrosia beetle, says it currently is continuing its journey south. The female Ambrosia beetle carries fungal spores on its body, a source of food for adult beetles and their larvae, which then inoculate Redbay trees. The fungus causes laurel wilt, the cause of wides...

Flowering plants speed post-surgery recovery

...e also shown that indoor plants make air healthier and provide an optimum indoor environment by increasing humidity, and reducing the quantity of mold spores and airborne germs. This nonpharmacological approach to recovery is good news for patients, doctors, and insurers alike in terms of cost effective...

Positive results in Phase 2 trial of treatment of C-difficile-associated diarrhea

...n the presence of antibiotics administered for other infections, in which the complex microbial make up of the GI tract is altered, and C. difficile spores may germinate, grow, and produce toxins A and B. The toxins cause damage to the GI tract lining in the colon, resulting in severe diarrhea, and may le...

Cross kingdom conflicts on a beetle's back

...rthropod ready to go into labor and lay a few hundred eggs. Tucked in a specialized storage compartment in its shell, the beetle has a ready supply of spores for Entomocorticium, a nourishing fungal baby food for the beetle's gestating larvae. Enter the antagonist: The mite, a microscopic interloper tha...

FBI unveils science of anthrax investigation

...tion of letters containing bacillus anthracis, the spores that cause the disease anthrax. The spores were mailed in the fall of 2001 to several news me...on initially difficult. When bacillus anthracis spores are weaponized, the...

American Chemical Society's Weekly PressPac -- July 16, 2008

...ill a wide range of infectious agents, including bacteria, viruses, and the spores that cause anthrax. Their study is scheduled for the August 6 issue of ACS'...ureus , Candida tropicalis (a fungus), MS2 virus, and Bacillus subtilis spores (to mimic anthrax). After a short time, large amounts of microorganisms stu...

Tests show LLNL detection instrument can monitor the air for all major terrorist threat substances

...s, SPAMS was tested against four types of materials terrorists might use -- spores of a non-pathogenic strain of Bacillus anthracis (other strains of this bac...d. The researchers determined that while a few particles showed up as spores among the almost one million particles studied, there were so few that no a...

Monarch butterflies help explain why parasites harm hosts

...fected monarch caterpillars with varying levels of spores from a protozoan parasite commonly found in wild p...butterflies spread the parasites when they deposit spores onto eggs or leaves of the milkweed plants that caterpillars feed on. These spores are then consumed by caterpillars as they feed. Ea...

UV lotion lights the way to cleaner facilities

...s journal, BMC Infectious Diseases, also show that spores from the nasty bacteria Clostridium difficile (C. ...m toilet surfaces to determine whether C difficile spores were present. The UV marker revealed that the...t an agent with some activity against C. difficile spores the physical action of cleaning alone cannot be re...

Sudden Oak Death pathogen is evolving, says new study that reconstructs the epidemic

...nalyzed how far the pathogen can spread naturally, such as through airborne spores and wind gusts. To do this, GPS coordinates were recorded for every plant s...t the vast majority of movement occurred within 200 to 300 meters. However, spores were occasionally found moving 1 to 5 kilometers, possibly aided by strong ...

NIST, Army researchers pave the way for anthrax spore standards

... assess the concentration and viability of anthrax spores after prolonged storage. The techniques and data a...d stability of laboratory-grade Bacillus anthracis spores under different storage conditions. Bacillus anthr...fy the Bacillus anthracis concentrations: counting spores under a microscope and counting the bacterial colo...

Are sacrificial bacteria altruistic or just unlucky?

...r times. In fact, B. subtilis is so good at making spores that it's often used as a model organism by biolog...ly a portion of the bacteria in a colony will form spores and only portion of the bacteria produce subtilisi...goshin said. "How is it decided which cells become spores and which don't?" Igoshin, a computational biol...

Killer fungus spells disaster for wheat

...r even stopping farmers from planting wheat in the spores path. The only real remedy will be new wheat varie...ntists expected the prevailing winds to carry Ug99 spores to Egypt, Turkey and Syria, and then east to Iran,...e fear is that the same winds could have blown the spores into Pakistan, which is also north of Yemen, and w...

New decontamination system kills anthrax rapidly without lingering effects

... In October 2001, letters containing anthrax spores were mailed to several news media offices and two ...others. Clearing the Senate office building of the spores with chlorine dioxide gas cost $27 million, accord...t simultaneously, the researchers can kill anthrax spores in two to three hours without any lingering effect...

Anthrax cellular entry point uncovered

...versity of Alabama at Birmingham (UAB). Anthrax spores enter the cell through something called Mac-1, a r...ious studies have shown what happens after anthrax spores enter the body and wreak havoc. Unraveling the ...ge inside healthy cells. By showing how anthrax spores recognize Mac-1 receptors, this discovery points t...

Disrupting common parasites' ability to 'talk' to each other reduces infection

...h the parasite, as are some livestock and wildlife. Humans can also become infected by eating undercooked meat or by drinking water contaminated with spores shed by cats. Epidemiologists estimate that as many as one in every four humans is infected with T. gondii. Infections are typically asymptomatic, ...

Moss genome shows how plants invaded the land and learned to survive heat and drought

...nd falls, aquatic plants found themselves repeatedly but not continuously exposed to the air and had to come up with ways of protecting their seeds or spores from desiccation," said Joint Genome Institute project leader Jeffrey Boore, an adjunct associate professor of integrative biology at the University o...

NSF awards Williams funding for high-speed imaging faciltity

...eyhound dogs, and their own study of ultra-rapid movements in plants such as the pollen catapult of bunchberry dogwood and the explosive propulsion of spores by Sphagnum moss. The videos captured by the high-speed imaging facility will be integrated into Williams' biology and physics teaching curricula....

Fossils excavated from Bahamian blue hole may give clues of early life

...in a much more sophisticated way. For instance, because bracken ferns are one of the first plants to recolonize after a fire, the presence of their spores would indicate regular burning in prehistoric times and indicate that an area was grassland. Evidence for this also comes from the numerous fossils of...

Researchers set new record for brightness of quantum dots

...it feasible to use photonic crystals and quantum dots in biosensing applications from detecting DNA and other biomolecules, to detecting cancer cells, spores and viruses, Cunningham said. More exotic applications, such as personalized medicine based on an individuals genetic profile, may also be possible. ...

When it comes fighting to C. difficile, the Palme d'Or goes to soap and warm water

...ound 95% of bacteria. stated Dr. Oughton. A characteristic of the bacteria family to which Clostridium difficile belongs is the ability to produce spores when under stress. These spores, which are highly resistant, then produce new bacteria when favourable conditions return. Eliminating them is a major ...

Society for General Microbiology 161st Meeting, University of Edinburgh

... Solid tumours have areas of low oxygen, so anaerobic bacteria are ideal to deliver gene therapy to these areas. Clostridium can form oxygen resistant spores and grow when it enters a low oxygen environment, like a tumour. Scientists have shown that genetically engineered Clostridium can treat cancer succes...

Potato wart eyed as risk to potato production

...s, as well as when the movement of commercial potatoes is restricted. spores released from infected plants can make soil unsuitable for potato production for decades. The long-term survival of fungal spores and the lack of suitable chemical controls for potato wart suppression make...
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