1024 COMPREHENSIVE KEY 



86. Agar digested Agarbacterium p. 322 



Agar not digested 87 



87. Colonies yellow 88 



Colonies not yellow 92 



88. Organisms will grow in a mineral salts medium using CO2 as a source of carbon and 



oxidizing hydrogen Hydrogenomonas p. 75 



Organisms grow in a mineral salts medium using alkylamines as the sole source of 



carbon and nitrogen Protaminobacter p. 200 



Not as above 89 



89. Obligate halophiles requiring 20 to 30 per cent salt for growth 



Halobacteriiim p. 207 

 Not as above 90 



90. Litmus milk acid or unchanged Flavobacterium p. 309 



Litmus milk alkaline 91 



91. Nitrites produced from nitrates Flavobacterium p. 309 



(F. lutescens and F. fucatum) 



Nitrites not produced from nitrates Alcaligenes p. 297 



{A. marshallii) 



92. Loeffler's inspissated serum liquefied 93 



Not as above 9^ 



93. Recorded from septicemia in ducks Pasteiirella p. 395 



Cause acute ophthalmia (pink eye) of cattle; angular conjunctivitis in man, monkeys 



and apes and recorded as a possible cause of trachoma in man 



Moraxella p. ^79 



94. Organisms recorded from an enzootic of chronic pneumonia in calves; thin Gram- 



negative rods arranged in groups in tissues and as coccoid and bacillary forms in 

 culture; in the condensation water of blood serum, produce mulberry -like flakes up 

 to 1 mm in diameter consisting of cells arranged in chains, the latter encased in a 

 non-stainable material which usually is swollen at the tip 



Actinobacillus p. 4H 

 (A. aciinoides) 

 Not as above 95 



95. Slender rods; 1.0 to 3.0 microns long, often arranged in angular fashion; pleomorphic; 



produce smooth, entire, butyrous, translucent, grayish yellow colonies 0.5 to 1.0 

 mm in diameter in 2 days at 37° C. on meat infusion agar; may increase slightly in 

 size on further incubation; cafe au lait-co\ored on potato; Straus reaction produced 

 in guinea pigs; strict parasite causing glanders in man and other animals 



Actinobacillus p. 4H 

 {A. mallei) 

 Not as above 96 



96. Organisms cause brucellosis in man and other animals; often cause abortion in ani- 



mals; good growth on liver extract agar or tryptose phosphate agar; increased CO2 

 tension necessary for isolation of one species; litmus milk alkaline 



Brucella p. 404 

 Not as above 97 



97. Organisms causing whooping cough in man, principally in children. One species 



{B. pertussis) will not grow on primary isolation on meat extract agar but does not 

 require X or V factor; the other species {B. parapertussis) grows profusely on meat 

 extract agar. Both species grow well on Bordet-Gengou medium producing smooth, 

 raised, entire, pearly, glistening colonies in 48 to 72 hours at 37° C; nitrites not 

 produced from nitrates; inspissated serum not liquefied. Following intraperitoneal 

 injection into mice, death occurs in 2 to 4 days. Autopsj^ shows extensive hyperemia 

 of the peritoneal wall, infiltration of glands and the presence of an extremely mucoid 



