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Bugging bugs: Learning to speak microbe
New Scientist ^
| March 5, 2010
| Hayley Birch
Posted on 03/07/2010 8:53:29 AM PST by grey_whiskers
DEEP in your lungs, there's a battle raging. It's a warm, moist environment where the ever-opportunistic bacterium Pseudomonas aeruginosa has taken up residence. If your lungs are healthy, chances are the invader will be quickly dispatched. But in the mucus-clogged lungs of people with cystic fibrosis, the bacterium finds an ideal habitat. First, the microbes quietly multiply and then they suddenly switch their behaviour. A host of biochemical changes sticks the population of cells together, forming a gluey biofilm that even a potent cocktail of antibiotics struggles to shift.
Microbes like P. aeruginosa were once thought of as disorganised renegades, each cell working alone. Microbiologists like Thomas Bjarnsholt, who is battling to understand how P. aeruginosa causes chronic infection in people with cystic fibrosis, now know otherwise. They are up against a highly organised army, using a sophisticated communication system to coordinate its behaviour.
(Excerpt) Read more at newscientist.com ...
TOPICS: Chit/Chat; Health/Medicine; Science; Weird Stuff
KEYWORDS: biology; csf; csfreceptor; heatshockproteins; heycool; immunology; medicine; microbes; microbiology; paeruginosa; pyocyanin; quorumsensing; quorumsensingsignals; rhamnolipids
To: neverdem; decimon; Smokin' Joe; LucyT; doc30; dr_lew
Like, *PING*, folks.
posted on 03/07/2010 8:55:37 AM PST
(The opinions are solely those of the author and are subject to change without notice.)
posted on 03/07/2010 9:15:42 AM PST
(A closed mouth gathers no feet)
Seeing bacteria talk: Shown colored above are molecules used by bacteria to communicate.
posted on 03/07/2010 9:24:03 AM PST
(What's all this about hellfire and Dalmatians?)
posted on 03/07/2010 11:01:08 AM PST
(Xin loi minh oi)
Amazing. Looks like they communicate better than we do in, say, an internet forum. Or a business meeting.
posted on 03/07/2010 11:38:25 AM PST
To: 2ndreconmarine; Fitzcarraldo; Covenantor; Mother Abigail; EBH; Dog Gone; ...
PIng... (Thanks grey_whiskers!)
posted on 03/07/2010 1:03:48 PM PST
by Smokin' Joe
(How often God must weep at humans' folly. Stand fast. God knows what He is doing.)
To: Smokin' Joe
To: Smokin' Joe
posted on 03/08/2010 6:02:39 AM PST
( garden/survival/cooking/storage- http://www.freerepublic.com/focus/chat/2299939/posts?page=5555)
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