Dictionary » M » Mycobacteria

Mycobacteria

mycobacteria

(Science: microbiology) bacteria with unusual cell walls that are resistant to digestion, being waxy, very hydrophobic and rich in lipid, especially esterified mycolic acids. Staining properties differ from those of gram-negative and gram-positive organisms, being acid-fast. Many are intracellular parasites, causing serious diseases such as leprosy and tuberculosis. Cell wall has strong immunostimulating (adjuvant) properties due to muramyl dipeptide (MDP). Mycobacterium bovis causes tuberculosis in cattle, attenuated strain is bacille Calmette-Guerin (bCG), used for immunisation. Mycobacterium leprae is the causative agent of leprosy. Mycobacterium microti is a mycobacterium that causes tuberculosis like disease in small rodents (Microtus microtus is the vole), will infect mice but not humans and is therefore much used as a laboratory model. Releases large amounts of cAMP which may inhibit lysosome phagosome fusion. Mycobacterium tuberculosis Is an obligate anaerobic nonmotile bacterium, causative agent of tuberculosis in humans. Lives intracellularly in macrophages.


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Re: Can Genetic Variation Revert Back?

... selective pressure of antibiotics (or antiviral drugs in the case of viruses) can be seen in certain slow-growing, resilient bacteria such as the mycobacteria - or in fast mutating viruses such as the HIV. In these cases the treatment must be done by means of combination of drugs in order to prevent ...

See entire post
by biohazard
Mon Jan 11, 2010 8:02 am
 
Forum: Evolution
Topic: Can Genetic Variation Revert Back?
Replies: 14
Views: 10070

Skin Microflora

Corynebacteria and Mycobacteria are another two I can think of.

See entire post
by stopherlogic
Fri Sep 26, 2008 11:06 am
 
Forum: Microbiology
Topic: Skin Microflora
Replies: 1
Views: 5870

The Fiber Disease

... (lipopolysaccharide or LPS), a variable-size carbohydrate chain that is the major antigen of the outer membrane of gram-negative bacteria. Mycobacteria contain mycolic acid in their cell walls [82]. And only bacteria employ right-handed amino acids in their cellular coats, which helps them ...

See entire post
by Nadas Moksha
Mon Sep 11, 2006 2:05 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5485384

The Fiber Disease

... Fulminant respiratory failure, multiple pustular and necrotic skin lesions, or the radiologic appearance of tuberculosis without isolating any mycobacteria suggests the diagnosis of melioidosis. Definitive diagnosis requires culturing organisms from body fluids or blood. No carrier state exists; ...

See entire post
by Skytroll
Mon Sep 04, 2006 4:01 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5485384

The Fiber Disease

Wanna wager on the type of bacterial infection? my money would be on different strains of mycobacteria. C3 is not a containment level it's central component of cellular pathways.

See entire post
by southcity
Sun Jul 09, 2006 3:39 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5485384
View all matching forum results

This page was last modified 21:16, 3 October 2005. This page has been accessed 3,190 times. 
What links here | Related changes | Permanent link