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1

Lysozyme-like activity in eggs and in some tissues of land snails Helix aspersa maxima and Achatina achatina

100%
Fiolka M. J., Witkowski A.
Folia Biologica
|
2004
|
vol. 52
|
issue 3-4
233-237
EN
Antibacterial lysozyme-like activity against Micrococcus luteus in eggs and some tissues of snails Helix aspers maxima and Achatina achatina was detected in a turbidimetric standard assay. The bacteriolytic activity in Helix aspersa maxima was higher than in Achatina achatina. After the application of the bioautography technique, several lytic zones of Micrococcus luteus were observed in both studied species. Electrophoresis in denaturing conditions followed by immunodetection of lysozyme using EWL antibodies indicated the presence of several lysozyme forms in the tested snails.
2

Effect of Pseudomonas aeruginosa crude proteolytic fraction on antibacterial activity of Galleria mellonella Haemolymph

88%
Andrejko M.
Folia Biologica
|
2004
|
vol. 52
|
issue 1-2
91-96
EN
The antibacterial activity of immune haemolymph Galleria mellonella directed against Escherichia coli D31 was destroyed by Pseudomonas aeruginosa crude proteolytic fraction. This was demonstrated by diffusion well assay and acid gel electrophoresis and subsequent bioautography. On the contrary, lysozyme activity appeared to be insensitive to extracellular proteases of P. aeruginosa when activity was determined using the bioautography method. In addition, no change in lysozyme protein level was observed by immunoblotting with specific antibodies directed against G. mellonella lysozyme, which confirmed that lysozyme was not degraded by the crude proteolytic fraction of P. aeruginosa. However, a significant decrease of lysozyme activity in naive and immune haemolymph exposed to the action of P. aeruginosa proteins determined by using diffusion well assay was observed. Mechanisms of the observed inhibition require further studies.
3

The application of lysozyme as a food preservative and a pharmaceutical

88%
Kijowski J., Lesnierowski G.
Biotechnologia
|
1995
|
issue 2
130-140
EN
The effect of lysozyme on some bacterial strains and its application as food preservative and a pharmaceutical was reviewed.
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