Type 1 Fimbria-Mediated Adhesion of Enteric Bacteria to Grass Roots

AUTOR(ES)

Haahtela, Kielo

RESUMO

Type 1 fimbriae of Klebsiella pneumoniae and Enterobacter agglomerans mediated bacterial adhesion to the roots of bluegrass, Poa pratensis. Purified, radiolabeled fimbriae bound to grass roots in vitro; binding was inhibited by α-methyl-d-mannoside or Fab fragments to the fimbriae. Anti-type 1 fimbriae Fab fragments and α-methyl-d-mannoside also inhibited adhesion of type 1-fimbriated bacteria to P. pratensis roots. It is proposed that associative nitrogen fixation by Klebsiella and Enterobacter strains also involves type 1 fimbriae, in addition to the type 3 fimbriae of Klebsiella spp. (T. K. Korhonen, E. Tarkka, H. Ranta, and K. Haahtela, J. Bacteriol. 155:860-865, 1983).

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