lecithinase


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Related to lecithinase: lecithinase C

lecithinase

[′les·ə·thə‚nās]
(biochemistry)
An enzyme that catalyzes the breakdown of a lecithin into its constituents.
References in periodicals archive ?
1968) Studies on the lecithinase from Penicillium notatum.
The phenotypic determination of possible virulence factors showed that the isolates (VP1-VP3 and VR1-VR3) all produced [beta]-hemolysis on rabbit blood agar, lecithinase, proteinase, gelatinase, and DNase.
Biochemical and morphological characterization: The three isolates were Gram positive rods, lecithinase positive, showed haemolytic activity in blood agar and produced spores in oval way.
Lecithinase production by GNER strains from periodontal lesions may disrupt transduction pathways in endothelial cells, platelets and neutrophils leading to uncontrolled production of intracellular mediators and adhesion molecules, thus altering the traffic of granulocytes to the infected tissue.
epidermidis species with various prevalence showed such signs as flocculation factor, fermentation of maltose, lactose and mannite, lecithinase and haemolytiic activity.
Enzyme activity: Amylase, Protease, (Caseinase, Gelatinase), lipase, Lecithinase, & Tyrosinase
cereus colonies showing lecithinase reaction were picked up, purified and stored on nutrient agar slant for further confirmation, which was carried out by Gram's staining and standard biochemical reactions (14).
mallei produce toxins such as pyocyanin (blue-green pigment that interferes with energy production via the electron transfer system), lecithinase (causes cell lysis by degrading lecithin of cell membranes), collagenase, lipase, and hemolysin.
aureus appear as black colonies demonstrating lecithinase activity as an opaque zone around the colony, encircled by a zone of clearing that is the result of lipase activity.
Nucleotide Sequence of the Lecithinase Operon of Listeria monocytogenes and Possible Role of lecithinase in Cell-to-Cell Spread.
Using an inoculating loop, the hemolytic colonies were isolated then streaked onto egg yolk plates for isolation of bacteria producing the lecithinase enzyme.
About 3-5 colonies from the culture plate for each sample were considered for Gram's staining, lactose fermentation, nitrate reduction, gelatin liquefaction, lecithinase and indole tests.