Microbiology
Category archives for Microbiology
When folks in my lab think about biological problems, we think about basics. A pathogen has some molecular component that trips a sensor on the outside of a cell. That sensor (the receptor) grabs on to some adapter proteins and starts a cascade of chemical reactions catalyzed by various enzymes, which eventually leads to the…
Ever wondered what the bottom of the ocean looks like? Well, now’s your chance to check out streaming live HD footage from the ROV ROPOS which is currently working out at Axial Volcano on the Juan de Fuca Ridge. Currently they are checking out a brand new lava flow, but later this evening and tomorrow…
In some ways, I’m kinda jealous of the research Heather does. I love my macrophages, but studying the bugs that live in the extreme environment of deep sea hydrothermal vents has always fascinated me. As a consequence of the stuff she studies, Heather also has to (gets to?) take multi-week sea voyages to travel out…
There’s a great post at the Sciam guest blog describing the science of antimicrobial cleaners, and it doesn’t look promising: perhaps the most comprehensive study of the effectiveness of antibiotic and non-antibiotic soaps in the U.S., led by Elaine Larson at Columbia University (with Aiello as a coauthor), found that while for healthy hand washers…
In the wild, as I wrote about last week, some strains of commensal bacteria in mosquitoes seem to confer some resistance to infection with Plasmodium, the parasite that causes malaria in humans. Not content to wait for for nature to get around to it, researchers at Johns Hopkins University decided to see if they could…
The arsenic story continues. After much discussion in the blogosphere and elsewhere about the controversial paper claiming to have discovered life that uses arsenic rather than phosphorus in its DNA, Science has published 8 critiques of the paper and a response by the author. You can find them here. I enjoyed reading them, and was…
You’ve all heard of Malaria. It’s bad. It infects hundreds of millions of people, mostly in developing nations. It rarely leads directly to death*, but the resulting illness can lay people out for days or weeks, increasing an already heavy economic burden on many of the poorest countries in the world. Folks from affluent regions…
Maryn McKenna has a typically great post about the rise and spread of a strain of multi-antibiotic resistant Staph aureus. It arose in Holland, where it spread to pigs, picked up resistance to the antibiotic tetracycline, and then jumped back into humans. Then it spread across the EU and into the US. As is often…
