Biomedical subjects

M Perduca

Publications and source records attributed to M Perduca.

4 recordsLinked to original sources

PubMed1978

R factors from Enterobacter group.

Twenty-six R factors transmissible to E. coli K12 were derived from 79 strains of Enterobacter species isolated in various clinical specimens (urine, sputum, blood, pus); 71 of 79 strains were Enterobacter cloacae. Fifteen R factors were fi+: 14 belonged to group FII, 1 to group FI. Eleven R factors were fi-: 5 belonged to group M, of the others 6 (all controlling the cloramphenicol-resistance) 1 was recognized of group K, 1 was incompatible with standard plasmids of both groups S and W, and 4 belonged to group S.

Anti-Bacterial Agents↗

PubMed1977

Compatibility groups of R-factors for trimethoprim resistance isolated in Italy.

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Enterobacteriaceae↗

PubMedDate not supplied

[R factors influence on motility of "E. coli" and "S. typhimurium" (author's transl)].

Influence on the motility of E. coli and S. typhimurium strains by several R factors has been studied; both classes of inhibiting and stimulating R factors have been detected; the plasmidic effect on the motility can be inverted by transfer to another carrier strain.

Escherichia coli↗

PubMedDate not supplied

[Prevalence and transferability of the plasmid lac+ character in "Klebsiella" sp. strains with "lac+-forte" phenotype].

36 strains of Klebsiella sp. showing a strong lactose-positive phenotype were examined for presence of R factors and for ability to promote the transfer of character lac+; 10 of the 13 R+ strains were able to transfer lac+ character and 4 showed the presence of R-lac factors. Transfer of R-lac factors from Klebsiella sp. strains to Salmonella typhi clinical isolates has also been obtained.

Anti-Bacterial Agents↗