ABSTRACT
The reactivities of strains of Plesionmona shigeloides; Campylobater jejuni; Campylobacter coli and Aeromonas species with some lectins namely Soyabean agglutinin (SBA); Ricinus communis agglutinin (RCA); Peanut agllutinin (PNA); Cancanavalin-A (Con-A); Lima bean agglutinin (LMA) and Abrin were investigated using the microtitre plate method. The results obtained show that all stains of A. hydrophila; A. caviae; A. Sobria and P. shigelloides reacted very strongly with PNA and SBA. All strains of C. jejuni studied failed to react with SBA but reacted with PNA Whereas C. coli did not show any reaction towards PNA but reacted very strongly with SBA. All strains of the different organisms were strongly agglutinated by RCA and LMA except A. Hydrophilia and A. sobria which did not react with RCA and LMA respectively. C. jejuni was not agglutinated by Con-A unlike C. coli. Only C. jejuni; C. coli and P. shigelloides reacted with abrin. This study suggests that the reactivities of lectins with the diarrheogenic bacteria studied may be used for their presumptive identifications and for epidemiological purposes
Subject(s)
Aeromonas , Campylobacter , Lectins , PlesiomonasABSTRACT
"The sensitivity of staphylococcus aureus isolated in Ekpoma; Edo State; Nigeria; to the bactericidal activity of normal human sera from different blood groups (""A""; ""B""; ""AB""; ""O"") was determined using the microtitre plate method. Results obtained revealed that S. aureus was sensitive to pooled serum samples of blood groups ""B""; ""AB""; and ""O""; each accounting for 60.7 per cent; 50.5 per cent and 53.5 per cent respectively; but resistant to blood group ""A"" with a sensitivity value of 43.3 per cent. This finding which is of clinical importance shows the differences of serum batctericidal activity of normal human sera from different blood group against S. aureus."