| Microorganism |  |  |  | 
  
    | Antimicrobial |  |  | Reference | 
            
			        
			            | Streptomyces natalensis (ΔpimT(pSETpimT)) | - | - | 75 - ? | L-Homoserine  | 543 | 
                
			        
			            | Streptomyces natalensis (ΔpimT(pSETpimT)) | - | - | 81 - ? | L-Homoserine lactone  | 543 | 
                
			        
			            | Streptomyces natalensis (ΔpimT(pSETpimT)) | - | - | 9000 - ? | L-Serine  | 543 |