Bacteria on Prepared Slides

Bacteria on Prepared Slides


Here is a gallery of many more pictures of microbe species and their anatomy.


Flagella slide 5 Proteus vulgaris Ba 156 (~2000x)
A special stain (pararosaniline) has been used to build up the flagella so that they can be seen on this peritrichous bacillus.

Alternative images of Flagella


Capsules slide 6 Unspecified species Ba 016a (~1000x)
This slide has been negatively stained (with congo red or eosin?) to show the presence of the mucopolysaccharide “slime” capsule.


Mycobacteria slide 4 Mycobacterium tuberculosis, sputum 90 W 2054 (~1000x)
This acid fast stained slide shows the pleomorphic shapes of the etiological agent of tuberculosis. Note that acid-fast stains M. tuberculosis red, and methylene blue is the counterstain.

Alternate images of M. tuberculosis

Neisseria gonorrhoeae

Neisseria slide 7 Neisseria gonorrhoeae Ba 133 (~1000x)
This is a Gram stained smear of a purulent urethral discharge. Large numbers of polymorphonucleocytes are present with a few squamous cells. In the cytoplasm of the PMNs can be seen phagocytosed Gm- diplococci which are indicative of gonorrheal infection.


Alternate image of N. g.



slide 17 Clostridium tetani, Ba 60 (~2000x)
Note that the cells with spores look like lollypops in this etiological agent of tetanus. It secretes a protienaceous exotoxin which prevents the re-uptake of acetylk choline at the neuromuscular junction, leading to paralysis by clonic musclular contraction, a condition known as tetanus.


slide 16 Clostridium botulinum, Ba 45 (~2000x)
These cells bearing spores are only slightly enlarged at the spore containing end in this etiological agent of botulism, caused by a protienaceous exotoxin which interferes with nerve to muscle communication, leading to flacid paralysis.


Alternate image of C. botulinum.


slide 15 Bacillus subtilis 90 W 0533 (~1000x)
Members of the genus Bacillus are Gram positive endospore-forming rods. Species of Bacillus are ubiquitous in soil, and most, including B. subtilis, are non-pathogenic. B. subtilis has been a workhorse in Micro labs for more than a century. Bacitracin and polymyxin were isolated from members of this genus.


Here is alternative image of B. subtilis.

An infamous member of the genus is B. anthracis, causing anthrax.

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