Test(s) CHII(II)K7 CHIII(I)Y6 DDI(I)1 UHI(II)7 CHII(I)NA4
Gram -ve +ve -ve +ve +ve
Reaction          
Shape Rods rods rods rods rods
Indole - - - - -
Methyl-red - - - + -
VP - + - + +
Citrate + + + - +
Catalase + + + + +
Oxidase - - + + -
H2S - - - - -
Nitrate + + + + +
reduction          
Table 7: Biochemical identification of selected PGPR isolates.