Fimbria

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fimbria

[′fim·brē·ə]
(anatomy)

Fimbria

 

a long, thin, straight appendage of hydrophobic protein present in large numbers, sometimes as many as several thousand, on the cell surface of gram-negative bacteria. A fimbria measures as much as 12 micrometers in length and less than 100 angstroms in width. It is much finer and shorter than a flagellum. Male bacterial cells (donors) may have one to three sex fimbriae, or pili, that attach themselves to female cells (recipients) to form hollow bridges through which DNA may be transferred during bacterial conjugation. Fimbriae may be found in both motile and nonmotile bacteria. They usually originate from the basal granule in the cytoplasmatic membrane and pass to the exterior through the cell wall. Fimbriae enable a bacterial cell to adhere indiscriminately to solid surfaces of cells and tissues.

A. A. IMSHENETSKII

References in periodicals archive ?
Some centers use a 20-60 ml solution of Hyalase, Ciplox and dexamethasone to flush the tubes via Sion cannula and spill is studied from the fimbrial end.
(41-44) Our observations suggest the potential of type 1 fimbrial adhesin as promising candidates for the development of new therapeutic strategies to prevent complications related to UPEC colonization.
Mobley, "Assessment of virulence of uropathogenic Escherichia coli type 1 fimbrial mutants in which the invertible element is phase-locked on or off," Infection and Immunity, vol.
Analysis of the role of 13 major fimbrial subunits in colonization of the chicken intestines by Salmonella enterica serovar Enteritidis reveals a role for a novel locus.
Heffron, "Multiple fimbrial adhesins are required for full virulence of Salmonella typhimurium in mice," Infection and Immunity, vol.
coli carry numerous types of fimbrial and afimbrial adhesins factors including fimbrial adhesins of the P, S, and F17 families and afimibrial adhesins of the AFA family [5] that mediate adherence to the host cells via binding to fibronectin and laminin [6, 7] of the host receptors.
used the following laparoscopic criteria such as findings of tubercles, caseation, granulomas, beaded tubes, tuboovarian masses, fimbrial agglutination, and hydrosalpinx to suggest TB.
Identification and characterization of a novel uropathogenic Escherichia coli-associated fimbrial gene cluster.
* The round ligament, tube and fimbrial ends must be reviewed before closure to avoid the chance of operator-related sterilisation failure.
Tubal lesion was situated in fimbrial end of fallopian tube in eight cases out of ten(80%).
maitophilia fimbriae 1 (SMF-1), which is composed of fimbrin subunits and shares significant similarity with the N-terminal amino acid sequences of several fimbrial adhesins of pathogenic Escherichia coli strains and the Cup A fimbriae in Pseudomonas aeruginosa.