objective: pyocyanine plays an important role in the pathogenesis of pseudomonas aeruginosa, (p. aeruginosa) and is known to have inhibitory and bactericidal effects. this study has aimed to detect the phenazine biosynthetic operon (phz abcdefg) and two phenazine modifying genes (phzm and phzs) by polymerase chain reaction (pcr) and detection of its possible protein bands by sodium dodecyl sulf...

An atypical strain of Pseudomonas aeruginosa capable of synthesizing three phenazine pigments was isolated. Cultural conditions, under which the strain forms either chlororaphin, oxychlororaphin, or pyocyanine, are described. This broad spectrum of pigment production, as well as some other characteristics, sets this strain apart from previously described chlororaphin producers.

Bacillus pyocyaneus produces, according to the conditions, different varieties of pigment of which pyoeyanine is best known and easily isolated because of its solubility in chloroform. This pigment is indigo blue at alkaline reaction, wine-red at acid reaction, and is reducible to a leuco compound by various reductants or in the absence of air by the living bacillus itself, and the leucodye is ...

background the effect of pyocyanine pigment, which was isolated and purified from pseudomonas aeruginosa, on specific lymphocytes viability inside the body of white male balb/c mice against the experimental secondary hydatidosis and the infectivity of protoscolices was studied in comparison with negative control mice groups, phosphate buffered saline (pbs) and positive control group (immunofero...

1. The system:hemolyzed blood + glucose never exhibits glycolysis or, in the air, oxidation of glucose. When glucose is replaced by hexosephosphate ester, addition of methylene blue causes oxidation in air. 2. When cozymase is added also, the oxidation is increased, and a synthesis of hexosephosphate esters takes place. 3. When pyocyanine is used instead of methylene blue, the rate of oxidation...