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Tag: "bugs" at biology news

Oldest animal fossils may have been bacteria

... of Nature in 1998, were so small they looked like bugs ?which, it now appears, they may have been. This week, a study in the same prestigious journal presents evidence for reinterpreting the 600 million-year-old fossils from the Precambrian era as giant bacteria. The discovery "complicates our underst...

Worms produce surprise insight into human fever

... many similar “effector?strategies against hostile bugs peristalsis, low gut pH, lytic enzymes, and antimicrobial peptides to prevent microbial colonization of the intestine. In dissecting two conserved pathways required for C. elegans immunity to bacteria, Aballay found a wealth of data on innate im...

Lab-on-a-chip could speed up treatment of drug-resistant pneumonia

...g the infection traditionally requires growing the bugs in culture first, a procedure that can take two to...ective at fighting the infection. The death of the bugs is confirmed by checking with a special dye. Once the bacteria-carrying fluid is injected into th...

Breathing easy: When it comes to oxygen, a bug's life is full of it

... will lead the symposium of four speakers. Why bugs don’t pant Bees consume large amounts of oxygen, and so it might be tempting to think they are panting ?tiny inaudible pants. They are not, because they do not breathe through noses or mouths. Instead, insects draw in oxygen through holes in their...

Key found to kill cystic fibrosis superbug

...ery provides new hope for the eradication of these bugs from cystic fibrosis patients and to improve their quality of life by developing new treatments."...

Mystery of fossilized trees is solved

...or and decayed, providing a new food chain for the bugs living below. "This was also a significant moment in the history of the planet. The rise of the forests removed a lot of Carbon Dioxide from the atmosphere. This caused temperatures to drop and the planet became very similar to its present-day con...

Wheat can fatally starve insect predators

...lining of a crop-destroying fly larvae so that the bugs starve to death. The gene's role in creating resistance to Hessian flies was a surprise to U.S. Department of Agriculture and Purdue University researchers, discoverers of the gene and its function. They made the finding as they investigated new, l...

Anthrax paralyzes immune cells with lethal toxin, UF research shows

...d allow detection within two or three hours of the bugs entering the blood and secreting toxins." Once inhaled, anthrax releases a lethal toxin that immobilizes the white blood cells that normally seek and destroy invading bacteria. Just traces of the toxin can slow movement of these cells, called neut...

How plague-causing bacteria disarm host defense

... Y. enterocolitica are big words for nasty, little bugs that cause what's commonly known as food poisoning. All three bacteria species find their way past the body's immune system through a sophisticated invasion system that injects the effector proteins directly into the host cell's cytoplasm. "More ...

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