Gram - Gram Negative Rods and Cocci Bdellovibrios.,...

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Gram Negative Rods and Cocci Bdellovibrios. Bdellovibrios  are aerobic Gram-negative, curved rods that prey on other bacteria.  The organism attaches to the surface of a bacterium, rotates, and bores a hole through the host cell  wall. It then takes biochemical control of the host cell and grows in the space between the cell wall  and plasma membrane. The host bacterium is killed in the process. The comma-shaped  Bdellovibrio  bacteriovorus  is the most thoroughly studied species of the group.  Pseudomonads. Pseudomonads  are aerobic, Gram-negative rods that are motile with polar  flagella. Over 30 species are found in the group, and  Pseudomonas fluorescens  is a well-known  producer of a yellow-green pigment. Another species,  P. aeruginosa , causes urinary tract infections  and infections of burned tissue.  Azotobacter   and  Rhizobium   . Species of 
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This note was uploaded on 11/11/2011 for the course BIO 101 taught by Professor Pesthy during the Fall '07 term at Texas State.

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