News tagged with bacterial cells

A sweet defense against lethal bacteria

(PhysOrg.com) -- There is now a promising vaccine candidate for combating the pathogen which causes one of the most common and dangerous hospital infections. An international team of scientists from the Max ...

May 31, 2011 3.8 / 5 (4) 0 | with audio podcast

When viruses infect bacteria

(PhysOrg.com) -- Viruses are the most abundant parasites on Earth. Well known viruses, such as the flu virus, attack human hosts, while viruses such as the tobacco mosaic virus infect plant hosts.

Jun 30, 2011 5 / 5 (3) 0 | with audio podcast

Bacterial security agents go rogue

CRISPR, a system of genes that bacteria use to defend themselves against viruses, has been found to be involved in helping some bacteria evade the mammalian immune system. The results are scheduled for publication Sunday, ...

Apr 14, 2013 5 / 5 (3) 0 | with audio podcast

Hey, bacteria are individuals too

Each person carries 10 times as many bacterial cells as human cells, the former of which have continued to evolve in response to medicine's most potent antibiotics. But microscopic bugs don't just dictate human health—they're ...

Nov 07, 2013 5 / 5 (3) 0 | with audio podcast

Keeping time: Circadian clocks

Our planet was revolving on its axis, turning night into day every 24 hours, for 4.5 billion years - long before any form of life existed here. About a billion years later, the very first simple bacterial ...

Oct 02, 2012 4.3 / 5 (3) 4

Random walks on DNA

Scientists have revealed how a bacterial enzyme has evolved an energy-efficient method to move long distances along DNA. The findings, published in Science, present further insight into the coupling of chemical and mechan ...

Apr 19, 2013 4.3 / 5 (3) 0 | with audio podcast