Toxic properties of Bacillus cereus strains isolated from different foodstuffs
Jazyk angličtina Země Německo Médium print
Typ dokumentu časopisecké články
PubMed
1576401
Knihovny.cz E-zdroje
- MeSH
- Bacillus cereus izolace a purifikace metabolismus MeSH
- bakteriální toxiny biosyntéza toxicita MeSH
- Cercopithecus aethiops MeSH
- fosfolipasy metabolismus MeSH
- hemolýza MeSH
- ileum účinky léků MeSH
- kojená zvířata MeSH
- králíci MeSH
- kůže účinky léků MeSH
- myši MeSH
- permeabilita účinky léků MeSH
- potravinářská mikrobiologie * MeSH
- vaječný žloutek účinky léků MeSH
- Vero buňky MeSH
- zvířata MeSH
- Check Tag
- králíci MeSH
- myši MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- bakteriální toxiny MeSH
- fosfolipasy MeSH
Toxic activity of 89 culture filtrates of Bacillus cereus strains were examined. From the total number of the filtrates tested, 3 were found to cause fluid accumulation in the ligated rabbit ileal loop. 71 samples caused a vascular permeability increase in the rabbit skin corresponding to an intermediate or strong toxin production. 59 of the 89 culture filtrates were cytotoxic on Vero cells, 31 had a lethal effect, 81 induced hemolysis of 0.5% rabbit erythrocytes and 55 tested samples showed lecithinase activity. The results showed that relationships exist between the extent of the permeability reaction and cytotoxicity, lecithinase and lethality. No relationship was found between permeability reaction size and reaction in the ligated rabbit ileal loop, nor a strict correlation between permeability reaction and hemolysin. Similarly, the part of culture filtrates showing a weak, or no reaction in the rabbit skin showed hemolytic activity.
Permeability factor, cytotoxicity and serotyping of Pseudomonas aeruginosa strains
