146 



MANUAL OF MICROBIOLOGICAL METHODS 



ACTION ON NITRATES 

 Medium; 



Nitrite: d. 



.Gas(N): d. 



Temp. °C. 



d. I d. 



d. ; ....„ .d. 



HYDROGEN SULFIDE PRODUCTION 



Medium: Age: 



II,S: present, absent. Temp. 



TEMPERATURE RELATIONS 



Growth in rcfriRerator ( °C.): present, absent. 

 Growth at room temperature ( "C): present, absent. 

 Growth at 37° C: present, absent. 

 Growth at 50° C: present, absent. 



ADDITIONAL TESTS 



INDOLE PRODUCTION 

 Medium: 

 Method: 

 Indole: present, absent 



RELATION TO FREE OXYGEN 



Medium: 

 Method: 



Age: 

 Temp. 



Aget 

 Temp. 



Aeroljic prowth: absent, present, better than anaerobic growth, poorer 

 than anaerobic growth. 



Anaerobic growth: present, absent. 



