| Characteristics | 
        Strain    D1.1 | 
        Strain    D1.2 | 
        Strain    D1.3 | 
        Strain    D1.4 | 
       
      
        | 1 | 
        Gram    reaction | 
        + | 
        + | 
        + | 
        + | 
       
      
        | 2 | 
        Shape | 
        Coccus | 
        Coccus | 
        Oval | 
        Oval | 
       
      
        | 3 | 
        Glucose | 
        + | 
        + | 
        + | 
        + | 
       
      
        | 4 | 
        Maniltol | 
        + | 
        + | 
        + | 
        + | 
       
      
        | 5 | 
        Lactose | 
        + | 
        + | 
        − | 
        + | 
       
      
        | 6 | 
        Glucose    fermentation | 
        + | 
        + | 
        + | 
        + | 
       
      
        | 8 | 
        H2S    product | 
        − | 
        − | 
        − | 
        − | 
       
      
        | 9 | 
        NH3    product | 
        − | 
        − | 
        − | 
        − | 
       
      
        | 10 | 
        Catalase    reaction | 
        + | 
        + | 
        + | 
        + | 
       
      
        | 11 | 
        Oxydase    reacton | 
        − | 
        − | 
        − | 
        − | 
       
      
        | 12 | 
        Aerobic    growth | 
        + | 
        + | 
        + | 
        + | 
       
      
        | 13 | 
        Polyphosphate | 
        + | 
        − | 
        + | 
        + | 
       
      
        | 14 | 
        Acid    resistance | 
        − | 
        − | 
        − | 
        − | 
       
      |