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Tag: "spores" at biology news

Scientists seek answers on what activates deadly anthrax spores

...tutions are setting out to find what activates the spores in anthrax, the deadly bacterial infection that is back in the news. "A key aspect of anthrax spore biology concerns the germination process through which the dormant spore becomes a reproductive, disease-causing bacterium," explained Al Claiborne, ...

Study Models Impact Of Anthrax Vaccine

...stributing antibiotics to peopleexposed to anthrax spores during a bioterrorist attack, could byitself, prevent about 70 percent of anthrax infections from occurring,according to researchers from the Johns Hopkins Bloomberg School ofPublic Health. To increase the prevention rate to 90 percent, theirstudy fo...

Scientists discuss improved biopesticides for locust control in West Africa

...nstrated UV resistance 15 times greater for coated spores as compared to non-coated spores. "This technology... developing means of protecting short-lived fungal spores from ultraviolet light, a key facet of biopesticide research. OIRED (http://www.oired.vt.edu/) at V...

Alien woodwasp, threat to US pine trees, found in N.Y.

...ypes of conifers, by introducing a toxic mucus and spores of a toxic fungus when the female lays her eggs through the bark and into the sapwood of the tree. "If S. noctilio is found to be established in New York or elsewhere in the U.S., we could launch a rapid response to contain and control the infestati...

Biologists determine genetic blueprint of social amoeba

...nism with a fruiting body composed of a stalk with spores poised on top. This increases its utility in a variety of studies. "An organism's relationship to humans depends on how related the proteins are that are found in the two cell types," says Kuspa. "You can make direct analogies, or you could learn ge...

Anthrax inhibitors identified by Burnham team

... biological terrorism. Pulmonary anthrax, in which spores of the anthrax bacteria are inhaled, is typically fatal unless diagnosis is made at an early stage of infection, when antibiotics such as Ciprofloxacin can provide a complete cure. At late stages in the disease, antibiotics can kill the anthrax bacte...

Bleach found to neutralize mold allergens

...to test the effect on allergic individuals of mold spores treated with common household bleach. "It has lo...d using an electron microscope, the treated fungal spores appeared smaller, and lacked the surface structures present on healthy spores. In addition, surface...

Purdue researchers find key to rice blast fungus

... biochemical changes. The fungus spreads when its spores are blown to rice plants and stick on the leaves. ...c mechanisms regulate this process, how the fungus spores recognize the plant surface, and how they know to penetrate it." Once the fungus enters the rice le...

New antibody shows promise as cure for anthrax

...containment laboratory, researchers placed anthrax spores in the nasal passages of guinea pigs, mimicking exposure to inhalation anthrax. The doses were 250 to 625 times what would ordinarily be lethal to 50 percent of the animals. After 72 hours, the animals not treated with the antitoxin succumbed to the ...

War on terror meets war on cancer

...wn. That isn't true of anthrax, which is spread by spores that are almost dormant. But for live bioweapons spread through the air in an aerosol mist ?bacteria that cause plague, tularemia or Q fever, for example ?the difference in isotope concentrations inside and outside the bacterial cells must be taken i...

Pillows - a hot bed of fungal spores

... Research Trust have discovered millions of fungal spores right under our noses - in our pillows. Asper... synthetic samples and identified several thousand spores of fungus per gram of used pillow - more than a million spores per pillow. Fungal contamination of...

Lethal needle blight epidemic may be related to climate change

... summer precipitation apparently helping to spread spores of pathogen Biologists studying a lethal blight of lodgepole pines in northwestern British Columbia present strong evidence in the September issue of BioScience that climate change is to blame for the outbreak. The blight, caused by the fungus Dothi...

Genetic defenders protect crops from fungal disease

...cious nutrients. At the cellular level, the fungal spores invade healthy plant cells and form root-like feeding structures called haustoria. The plant cell wall is the primary barrier to this invasion and one of the defense genes described in the current study, called PEN2, prevents the fungus from penetrat...

Same-sex mating by fungi spawned infection outbreak, evidence suggests

...tococcus are airborne spores," Heitman said. "Such spores are produced during sexual reproduction, though mating of the fungus has never been observed in nature." In plants and animals, sexual identity is governed by sex chromosomes, Heitman explained. In fungi, however, sexual identity is determined by so...

Poison + water = hydrogen. New microbial genome shows how

...nknown talent of the microbe. Organisms that make spores have attracted great interest recently because thi...lows anthrax to be used as a bioweopon because the spores are resistant to heat, radiation, and other treatments. By comparing this genome to those of othe...

Wisconsin scientists discover a master key to microbes' pathogenic lifestyles

...breath away. Inhaled into the lungs of a mammal, spores from a class of six related soil molds found aroun...overy of a master molecular sensor embedded in the spores of the fungi that triggers the transformation. The finding is reported in the April 28 edition of th...

Anthrax spores may survive water treatment

Anthrax spores may survive traditional drinking water disinfectio...of this study was to determine the fate of anthrax spores in a drinking water system that uses chlorine as a disinfectant. Though researchers have some knowl...

Anthrax inhibitor counteracts toxin, may lead to new therapeutics

... person." The 2001 intentional release of anthrax spores via postal mail in the United States led to increased research on possible therapeutics and vaccines to treat toxins that could be used as biological weapons. The current treatment for anthrax exposure is antibiotics, but inhalation anthrax still has...

Newly discovered protein kills anthrax bacteria by exploding their cell walls

...ions and even decontaminate areas in which anthrax spores have been released. "Anthrax is the most efficient biowarfare agent. Its spores are stable and easy to produce, and once someone inhales them, there is only a 48-hour window when a...

Airborne mold spores increase kids' risk for multiple allergies

...ow a relationship between specific airborne fungal spores and an increased risk for multiple allergies in ch...y showed that exposure to specific airborne fungal spores may increase allergic reactions and others could help reduce them. These findings reinforce the id...

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