Results 151 to 160 of about 5,959 (186)

Epidemiology of Aerobactin Production in Enterobacteriaceae

Annales De L'Institut Pasteur Microbiologie, 1986
Clinical isolates (496) of 10 different enterobacterial genera were studied for aerobactin excretion, colicin production and antibiotic resistance. In the case of Escherichia coli, the incidence of aerobactin-positive strains in 108 blood isolates (45%) was not significantly different from that corresponding to faecal sources (41%).
José Luís Martínez
exaly   +3 more sources

Aerobactin Production by Enterotoxigenic Escherichia coli of Porcine Intestine

Veterinary Microbiology, 1995
Of 135 strains of Escherichia coli from the intestines of healthy and diseased piglets screened, 16 (12%) were positive in a bioassay for aerobactin production. Of these, 15 also carried genetic determinants for heat stable or heat labile enterotoxins.
Peter H Williams, César Celemin, S Suárez   +2 more
exaly   +3 more sources

IS1-Mediated Mobility of the Aerobactin System of pColV-K30 in Escherichia coli

Molecular Genetics and Genomics, 1988
Genes determining the high affinity iron transport system mediated by the siderophore aerobactin are flanked in the enterobacterial plasmid pColV-K30 by inverted repeats of IS1 sequences, suggesting that the aerobactin genes are part of a transposon.
Victor de Lorenzo, M Herrero, J B Neilands   +2 more
exaly   +3 more sources

Aerobactin-Mediated Iron Uptake: A Virulence Determinant in Enteropathogenic Escherichia coli?

Lancet, The, 1985
P H Williams, P H Williams
exaly   +3 more sources

Aerobactin production as a virulence factor: A reevaluation

European Journal of Clinical Microbiology & Infectious Diseases, 1988
Iron starvation is one of the major barriers that virulent bacteria must overcome in order to proliferate in the host. Virtually all microorganisms possess high affinity iron (III) transport systems mediated by low molecular weight iron specific chelators called siderophores, the synthesis of which is activated under iron-limiting conditions ...
de Lorenzo V, Martinez JL
openaire   +3 more sources

Aerobactin-mediated utilization of transferrin iron

Biochemistry, 1982
Aerobactin and enterobactin, hydroxamate- and catechol-type siderophores, respectively, were found capable of removing iron (III) from transferrin in buffered solution. Although under these conditions aerobactin displaced the iron much more slowly than did enterobactin, the rate for the former could be accelerated by addition of pyrophosphate as ...
K, Konopka, A, Bindereif, J B, Neilands
openaire   +2 more sources

Genetic and biochemical characterization of the aerobactin synthesis operon on pColV

Molecular and General Genetics MGG, 1984
Certain ColV plasmids of Escherichia coli contain genes that specify functions for the acquisition of iron(III) via aerobactin. The locus for aerobactin synthesis of pColV-K311 was cloned into pBR322. Mutagenesis with the transposon Tn1000, and the generation of deletions with restriction enzymes resulted in multicopy plasmids which complemented pColV ...
R, Gross, F, Engelbrecht, V, Braun
openaire   +2 more sources