METHYL RED positive
No ring formation
METHYL RED negative
+ + - -
- - + +
+ + - -
- + - +
. IMVIC test done on E. coli showed positive result for indole and methyl red as indicated by visible results of no ring formation and red coloration
False- RING FORMATION
Proteus showed negative result on both Indole and Methyl Red test with ring formation and color complex.
IMVIC test for Klebsiella showed positive result for VP and Citrate with the formation of red complex and bicarbonates (alkaline).
Salmonella showed positive result in both Methyl red and citrate with the production of a red complex and purple color
False- Prussian blue
E. coli shows negative result for VP and citrate with no change in color.
False- Yellow on VP, no change in Citrate
Yellow Slant, Yellow butt, cracks
URE ASE positive