🔎 Mycobacterium tuberculosis – Definition and Explanations


Dominion Bacteria
Branch Actinobacteria
Place an order Actinomycetals
Bottom line Corynebacterineae
Family Mycobacteria
gender Mycobacterium
Binomial name (In taxonomy (botany, zoology, etc.) binomial name or binomial…
Mycobacterium tuberculosis
Zopf, 1883

Mycobacterium tuberculosis (BK, Koch bacillus) is the responsible bacteria tuberculosis (Tuberculosis is a contagious, non-immunizable, infectious disease with symptoms…).

belonging to the genus Mycobacteria (Mycobacterium spp.) in the same way as the bacilli of the bacterium Grass (Leprosy (or Hansen’s disease) is a chronic infectious disease caused by Mycobacterium…)(Mycobacterium leprae or Hansen’s bacillus) or the so-called atypical mycobacteria, was discovered by a German. Robert Koch (Robert Koch is a German physician, born on December 11, 1843…) In 1882 and his genome (The genome is the entire genetic material of an individual or a person…) It was ranked in 1998.


Mycobacterium tuberculosis grew 15549 times

M. tuberculosis is a bacillus aerobic (Aerobic means the ability of an organism or microorganism to grow in air…) hard, sessile, straight or slightly curved, 2 – 5 µm x 0.3 – 0.5 µm.

Like other mycobacteria, M. tuberculosis poorly accepts ordinary stains and gram: usually stained with Ziehl Neelsen. For ease of reading and economy time (Time, by man… in large series, it is possible to applyauramine with the arrow fluorescence microscope (Fluorescence is the property of certain objects that emit light afterwards…)allowing the use of a dry lens and thereforeexploration (Exploration is a search with the intention of discovering something unknown.) bigger field (Field corresponds to the definition of defined space 🙂. The stain is often fragmented or granular, the bacilli appear pink on the background blue (Blue (from Old High German “blao” = bright) is one of the three colors…) In Ziehl-Neelsen. In pathological products, they are in small groups in palisades or irregular arrangement. A positive direct examination does not necessarily mean the presence M. tuberculosis in the pathological product, virtually all mycobacteria are stained with Ziehl-Neelsen. The test report therefore notes the presence of “acid-alcohol-fast bacilli” or BAAR. In young cultures of virulent strains, M. tuberculosis adopts a braided or cord structure.

Its wall consists of lipid bilayer (plasmic membrane), polymers and mycolic acids and a single layer from inside to outside. the second (The second is the feminine of the second adjective immediately following the first, or which…) lipid bilayer.

Don’t pass

Transmission is mainly through the air, sometimes through the mouth or the digestive tract. The bacterium causes highly microbial-rich lesions that allow significant spread of the infectious agent through the respiratory tract during severe seizures. cough (A cough is a sudden, often repeated, spasmodic contraction of the cavity…) who accompanies disease (A disease is a change in the functions or health of a living organism, animal…) in the form of lungs (Lungs are plants belonging to the Boraginaceae family.). Pulmonary tuberculosis is caused by inhalation of particles (“nuclei”) small enough (8 microns or less) to reach the alveoli. M. tuberculosis it has the property of being very resistant to air and dust, which makes tuberculosis a highly contagious disease.


Mycobacterium tuberculosis is a very fast-growing bacillus slow (Lente is a river in Tuscany.) (2 to 6 weeks) and requires special environments. It is the most commonly used solid medium Lowenstein-Jensen or one of its many variants (Coletsos…). These are solid egg-based media that are added proportionally variable (Represented in mathematics and logic by the variable symbol. This…) asparagine, glycerin, green (Green is the complementary color corresponding to light of wavelength…) of malachite (Malachite is a mineral type of the mineral carbonate group and…)Culture (Culture is a pangalactic civilization invented by Iain M. Banks through his…) it is also possible in the middle fluid (The liquid phase is the state of matter. Matter in this form…) (Middlebrook, Mycobacteria Growth Indicator Tube (MGIT) for example) and in an automated system.

Colonies form after 2-4 weeks and are ivory-white in the middle, rough and sticky. After 2-3, they grow slowly to reach 3-4 mm month (A month (Lat. mensis from the word “month”, formerly from the word “menstruation” in the plural) is a period of time…). Then they look alike cauliflower (Cauliflower is a herbaceous plant belonging to the Brassicaceae family, cultivated as…).

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