Hence, the present study was undertaken to identify, phenazine, phenazine-1-carboxylic acid and pyocyanin from the oil palm rhozospheric strain of P.
Extraction and Purification of Phenazine, Pyocyanin and Phenazine-l-carboxylic Acid
aeruginosa produces multiple hydrosoluble pigments, the most important of which are pyocyanin and pyoverdin which are responsible for the characteristic greenish blue discoloration of Pseudomonas infection.
5,6 All three of our cases had greenish- blue staining of their underclothing which can be attributed to pyocyanin and pyoverdin production by P.
Phenazine, an antibiotic pigment is also known as pyocyanin produced during the early stationary phase of P.
These coordinate the expression of various genes responsible for the virulence factors production such as LasA protease, LasB elastase, biofilm formation and pyocyanin pigment production (Bosgelmaz 2003).
To assess the effect of the culture extract on the pyocyanin production, the PAO1 cells were cultivated in the presence and absence of SBF1 extract.
aeruginosa consisting of rhlI in conjunction with RhlR, activates expression of pyocyanin production (30).
aeruginosa is a Gram-negative pathogen characterized with unique green color due to presence of pyocyanin pigment which is one of the most known virulence factors of P.
Beside the activity of pyocyanin and the hemolytic activity of P.
Two sample media for demonstration of pyocyanin
Some antimicrobial substances such as pyocyanin
and pyoverdin have been described for Pseudomonas sp.