Page:Bergey's manual of determinative bacteriology.djvu/252

 :::::::ee. Milk coagulated.


 * dd. Nitrites not produced from nitrates.


 * cc. Indole not produced.


 * d. Found in the human buccal cavity.


 * dd. Cause of abscesses in the African toad.


 * bb. Does not liquefy gelatin.


 * aa. Require sea-water or heavy brine media for growth on fresh isolation.


 * b. Isolated from sea water.


 * c. A diffusible dark brown pigment is usually produced in gelatin media.


 * cc. A buff-colored pigment is produced on sea-water agar. No diffusible pigment produced.


 * bb. Found growing in brines.


 * c. Acid from glucose.


 * cc. No acid from glucose.


 * 2. Luminescent, digest agar, attack benzene ring compounds or oxidize oxalates.


 * a. Produce luminescence especially on neutral media containing sea water or the equivalent salt content.


 * b. Gelatin liquefied.


 * c. Require alkaline sea water or equivalent media for growth,


 * d. Optimum growth temperature, between 25° and 28° C.


 * dd. Optimum growth temperature, between 30° and 32° C.


 * cc. Found in fresh water and in intestinal contents.


 * bb. Does not liquefy gelatin.


 * aa. Not as above.


 * b. Digest agar either actively or at least soften it.


 * c. Found in soil and in rotting organic matter.


 * d. Decomposes both cellulose and agar.


 * dd. Liquefies agar only.


 * cc. Found in sea water with rotting algae.


 * d. Nitrites produced from nitrates.


 * e. Colonies on agar are white to gray.


 * ee. Colonies on agar are pale yellow becoming bright yellow then pale brown.