imvic 

Statements about this table:
the escherichia coli specie have a positive indole and a negative methyl red
both the escherichia coli and the proteus vulgaris species' have positive indole
the klebsiella spp be the only specie with a negative methyl red
the escherichia coli specie have a negative voges - proskauer and citrate
species
indole
methyl red
voges - proskauer
citrate
escherichia coli
positive
positive
negative
negative
shigella spp
negative
positive
negative
negative
salmonella spp
negative
positive
negative
positive
species
indole
methyl red
voges - proskauer
citrate
klebsiella spp
negative
negative
positive
positive
proteus vulgaris
positive
positive
negative
negative
proteus mirabilis
negative
positive
negative
positive