title: Lectin-binding properties of Aeromonas caviae strains.
abstract: The cell surface carbohydrates of four strains of Aeromonas caviae were analyzed by agglutination and lectin-binding assays employing twenty highly purified lectins encompassing all sugar specificities. With the exception of L-fucose and sialic acid, the sugar residues were detected in A. caviae strains. A marked difference, however, in the pattern of cell surface carbohydrates in different A. caviae isolates was observed. Specific receptors for Tritricum vulgaris (WGA), Lycopersicon esculentum (LEL) and Solanum tuberosum (STA) (D-GlcNAc-binding lectins) were found only in ATCC 15468 strain, whereas Euonymus europaeus (EEL, D-Gal-binding lectin) sites were present exclusively in AeQ32 strain, those for Helix pomatia (HPA, D-GalNAc-binding lectin) in AeC398 and AeV11 strains, and for Canavalia ensiformes (Con A, D-Man-binding lectin) in ATCC 15468, AeC398, AeQ32 and AeV11 strains, after bacterial growing at 37°C. On the other hand, specific receptors for WGA and EEL were completely abrogated growing the bacteria at 22°C. Binding studies with (125)I- labeled lectins from WGA, EEL and Con A were performed. These assays essentially confirmed the selectivity, demonstrated in the agglutination assays of these lectins for the A. caviae strains.
authors.affiliation: Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro , Rio de Janeiro, RJ , Brasil.
authors.forename: Cláudio M
authors.initials: CM
authors.lastname: Rocha-de-Souza
authors.forename: Raphael
authors.initials: R
authors.lastname: Hirata
authors.forename: Ana L
authors.initials: AL
authors.lastname: Mattos-Guaraldi
authors.forename: Angela C
authors.initials: AC
authors.lastname: Freitas-Almeida
authors.forename: Arnaldo F B
authors.initials: AF
authors.lastname: Andrade
keywords: Aeromonas caviae; Carbohydrate; Cell surface; Lectin
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