Page:Bergey's manual of determinative bacteriology.djvu/587

 Ammonia and acetic and propionic acids are produced. Anaerobic. Optimum temperature, 37° C. Pathogenic for mice, guinea pigs and rabbits. Source: Isolated from cases of appendi- citis and various suppurations (dacryo- cystitis, tubercular tissues). Habitat: Found in the appendix, lacrymal sac and lungs. Common. 4. Ramibacteriuni pseudoraniosuni (Distaso, 1912) Pr6vot, 1938. (Bacillus pseu- doramosus Distaso, Cent. f. Bakt., I Abt., OTig.,62, 1912, 441 ; Pr^vot, Ann. Inst. Past., 60, 1938, 296.) pseu.do.ra.mo'sum. Gr. adj. pseudes false; L. adj. ramosus much-branched; M.L. adj. pseudoramosus false (Ramibacterium) ramosum. Cells similar to those of Ramibacterium ramosum but slightlj^ smaller and flexuous; occur in angles and in short chains. Non- motile. Gram-positive. Gas produced in slight amounts in culture media. Gelatin: No liquefaction. Deep agar colonies: Lenticular. Gas is produced. Glucose broth: Turbid. Whitish precipi- tate. Milk: Slowly coagulated. Coagulated proteins not attacked. Indole is produced. Acid and gas from glucose, fructose, ga- lactose, lactose and trehalose. Ammonia, traces of hydrogen sulfide, aldehyde, ketone, formic and valerianic acids and traces of lactic acid are produced. Nitrites not produced from nitrates. Neutral red reduced temporarily. Anaerobic. Optimum temperature, 37° C. Not pathogenic. Source: Isolated from human feces. Habitat: Found in human intestines. Very common. 5. Ramibacterium dentium Vinzent and Reynes, 1947. (Ann. Inst. Past., 73, 1947, 594.) den'ti.um. L. mas.n. dens tooth; L. gen. pi. noun dentium of teeth. Straight, slender rods, 0.3 to 0.4 by 2.0 to 3.0 microns, resembling those of Rami- bacterium ratnosvm; occur in short chains and in clumps; Y-shaped forms occur as the result of what appears to be false branching. Non-motile. Gram-positive. Gas but no odor produced in culture me- dia. Gelatin: Abundant growth. No liquefac- tion. Deep agar colonies: Punctiform, becom- ing cotton-like in appearance. Develop slowly. Glucose broth: Produces a viscid, semi- fluid mass which precipitates. Gas is pro- duced. Peptone broth: Growth poor; produces a viscid, semifluid mass. Milk: No coagulation. Coagulated proteins not attacked. Indole is produced. Acid from glucose, fructose and mannitol. Ammonia, acetylmethylcarbinol and bu- tyric and valerianic acids are produced. Nitrites not produced from nitrates. Neutral red and safranin are reduced. Anaerobic. Optimum temperature, 37° C. Grows at 26° C. Killed at 65° C. Optimum pH, between 7.0 and 8.0. Neither toxin nor hemolj^sin is produced. Not pathogenic for guinea pigs or mice. Source: Isolated from dental tartar. Habitat: Found in the human mouth. Not common. 6. Ramibacterium alaclolyticum Ft6- vot and Taffanel, 1942. (Ann. Inst. Past., 68, 1942, 259.) a.lac.to.ly'ti.cum. Gr. pref. a not; L. noun lac, lactis milk; Gr. adj. lyticus dis- solving; M.L. adj. alactolyticus non-milk- dissolving. Straight rods occurring either in sinuous, short chains or in zigzags; Y-shaped forms occur as the result of what appears to be false branching. Non-motile. Gram-positive. Gas but no odor produced in culture me- dia.