An organism grown on agar shows green coloured colonies; likely organism is:
The above pigments account for the greenish colonies seen with psuedomonas. Ref: Text Book of Microbilogy By Ananthanarayan, 6th Edition, Page 294 ; Harrison's Principles of Internal Medicine, 14th Edition, Page 944
Staphylococcus
E.Coli
Pseudomonas
Peptostreptococcus