112 ACTINOMYCETES AS ANTAGONISTS 



were found to be inactive, 53 cultures (32.3 per cent) were moderately 

 active, and 24 cultures (14.6 per cent) were highly active. The conclu- 

 sion was reached (970) that bacteriolytic activities against killed bac- 

 teria and living gram-positive bacteria are widely distributed among 

 the actinomycetes. Growth-inhibiting properties of actinomycetes were 

 found to be significantly associated with bacteriolytic action upon living 

 gram-positive bacteria (Table 20). 



TABLE 20. BACTERIOLYTIC AND BACTERIOSTATIC PROPERTIES OF 

 VARIOUS SPECIES OF ACTINOMYCETES 



Group II. Actinomycetes Moderately Bacteriostatic to B. subtilis 



S. albus {^T,()\) -H- C, S o 



S. cretaceus + c O 



5. albus, var, ochraleuceus -H- C, S O 



5. annulatus + — O 



S. aureus -h CO 



5. bovis -J- CO 



S.f radii -H- C, S o 



