SPORE-FORMING BACTERIA 



83 



lytic properties, especially against members of the pneumococcus group 

 as well as against various other bacteria such as the typhoid, anthrax, 

 and Shiga organisms. E. coli, V. comma, and staphylococci were less 

 affected, and Bacillus suifestifer was least acted upon. The filtrate of 

 the organism grown in peptone broth had strong antibiotic properties} 



TABLE II. SPORE-FORMING BACTERIA ANTAGONISTIC TO OTHER BACTERIA 



ANTAGONIST 



B. ant hr acts 



B. brevis 



B. mesentericus 



B. mesentericus 



B. mesentericus 

 vulgatus 



B. mycoides 

 B. mycoides 



B. mycoides, 

 var. cytolyticus 



B. subtilis 



B. subtilis 



B. subtilis 



B. subtilis- 

 mesentericus 



B. therm-ofhilus 



ORGANISM AFFECTED 



Anthrax, typhoid, and 

 lactic acid bacteria 



Gram-positive bacteria 



Many bacteria 



Diphtheria bacteria 



C difhtheriae 



7 to 20 species of 

 bacteria 



M. tuberculosis 



Most pathogens and 

 many nonpathogens 



Various bacteria 



Various bacteria, espe- 

 cially certain plant 

 pathogens 



M. tuberculosis, E. 

 tyfhosa, etc. 



Mostly living gram- 

 positive bacteria and 

 dead gram-negative 

 bacteria 



5". lutea 



KNOWN PROPERTY REFERENCES 

 299, 781, 827 



Produces tyrothricin 190,191,203 



Bacteriolytic 408 



Bactericidal 28, 956 



Substance thermola- 705 

 bile, nonfilterable 



Lytic 61,620,621 



Thermostable sub- 482, 483 



stance produced, 

 precipitated by 

 tungstic acid 



294 



Bacteriolytic 61,640 



442 



903 



Lytic 768, 770 



Suppression of 835 



growth 



