Bacteria on Prepared Slides
FEATURES OF BACTERIAL ANATOMY, SELECTED SPECIES.
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 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.
SPORE FORMING BACTERIA
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.
David Fankhauser 