High activity of acid phosphatase of Pseudomonas pseudomallei as a possible attribute relating to its pathogenicity. 1989

S Dejsirilert, and R Butraporn, and D Chiewsilp, and E Kondo, and K Kanai
National Institute of Health, Soi Bamrasnaradura Hospital, Nonthaburi, Thailand.

Phosphatase activities were compared quantitatively among selected species of pseudomonads. P. pseudomallei showed the highest activity of a bell-shaped pH pattern with a peak at around pH 5.0. P. cepacia had a similar pattern of milder intensity. In contrast, P. aeruginosa revealed an alkaline phosphatase activity with a pH optimum higher than 8.0, but the level of activity was much lower than those of the above two species. The enzymatic reactions of other species were slight or negligible at their optimum pH in the same test system. These data were discussed in reference to their growth behavior in different pH environments and also in connection with such recent information that the high activity of microbial acid phosphatase may be a favorable attribute to their intracellular parasitism.

UI MeSH Term Description Entries
D011549 Pseudomonas A genus of gram-negative, aerobic, rod-shaped bacteria widely distributed in nature. Some species are pathogenic for humans, animals, and plants. Chryseomonas,Pseudomona,Flavimonas
D006863 Hydrogen-Ion Concentration The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH pH,Concentration, Hydrogen-Ion,Concentrations, Hydrogen-Ion,Hydrogen Ion Concentration,Hydrogen-Ion Concentrations
D000135 Acid Phosphatase An enzyme that catalyzes the conversion of an orthophosphoric monoester and water to an alcohol and orthophosphate. EC 3.1.3.2. Acid beta-Glycerophosphatase,Acid beta Glycerophosphatase
D013045 Species Specificity The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species. Species Specificities,Specificities, Species,Specificity, Species

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