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Mycobacterium tuberculosis (M. tb), also known as Koch's bacillus, is a species of pathogenic bacteria in the family Mycobacteriaceae and the causative agent of tuberculosis. [ 1 ] [ 2 ] First discovered in 1882 by Robert Koch , M. tuberculosis has an unusual, waxy coating on its cell surface primarily due to the presence of mycolic acid .
Short, relatively plump bacilli (rods) in tissue smears, large slender beaded rods in culture. They have no flagella or fimbria, and no capsule. [citation needed] Mycobacterium tuberculosis group bacteria are 1.0-4.0 μm long by 0.2-0.3 μm wide in tissues. In culture, they may appear as cocci, or as bacilli up to 6-8 μm long. [citation needed]
English: Schematic diagram of cellular growth (elongation) and binary fission of bacilli. Blue and red lines indicate old and newly-generated bacterial cell wall, respectively. (1) growth at the center of bacterial body. e.g. Bacillus subtilis, E. coli, and so on. (2) apical growth. e.g. Corynebacterium diphtheriae.
diagram that shows how the bacteria from the form bacilli get to arrange. Date: 28 April 2006: Source: did it myself using adobe ilustrator based on the information found here ,,, and : Author: Mariana ruiz LadyofHats: Permission (Reusing this file) public domain: Other versions
Setting a value for any of the cell or organelle attributes will make its diagram visible Any number and combination of diagram attributes may be set When multiple diagrams are activated, the title is suppressed
The following other wikis use this file: Usage on ast.wikipedia.org Estructura celular bacteriana; Usage on as.wikipedia.org বেক্টেৰিয়া
The abbreviation TB is short for tubercle bacillus. Consumption was the most common nineteenth century English word for the disease, and was also in use well into the twentieth century. The Latin root con meaning 'completely' is linked to sumere meaning 'to take up from under'. [204]
Tubercle bacilli, either free or within phagocytes, drain to the regional nodes, which also often caseate. This combination of parenchymal lung lesion and nodal involvement is referred to as the Ghon complex. During the first few weeks, there is also lymphatic and hematogenous dissemination to other parts of the body.