(n.) A band of white matter bordering the hippocampus in the brain.
Example Sentences:
(1) The perforant pathway and fimbria fornix were transected to label afferent fibers to NPY-positive cells.
(2) In the fimbria a significantly higher concentration (P less than 0.01) was observed in the proliferative phase.
(3) One month after unilateral transection of the fimbria-fornix an almost complete lack of cholinergic fibers persists in all layers of the dorsal hippocampus and fascia dentata ipsilateral to the lesion when compared to the contralateral hippocampus or to unlesioned control rats.
(4) E. coli strain S22-1, serotype O103:H2, isolated from a child with diarrhoea, contained two plasmids; one of these (pDEP12) hybridized with the CVD419 DNA probe derived from a plasmid found in E. coli O157:H7 and associated with expression of fimbriae and ability to adhere to Intestine 407 cells.
(5) Morphological results demonstrated that 30 Gy irradiated animals showed extensive necrosis primarily in the fimbria, which extended into the internal capsule, optic nerve, hippocampus, and thalamus.
(6) (iii) Binding curves generated from an enzyme immunoassay demonstrated concentration-dependent binding of P. gingivalis fimbriae to A. viscosus cells.
(7) The phenomenology of various protrusions, including fimbria, is described, and the effect of cultivation conditions (continuous culture, periodic culture) and growth phases on their emergence was elucidated.
(8) Electron microscopy revealed this strain to be rich in fimbriae.
(9) From these lines of evidence, P. gingivalis fimbriae appear to be capable of binding to A. viscosus and mediating the coadhesion of these species.
(10) Unlabeled Escherichia coli and purified E. coli 987P fimbriae inhibited the adherence of biotinylated E. coli to immobilized enterocytes.
(11) It was also found that in Klebsiella, MS and MR fimbriae differed antigenically.
(12) The F17 fimbriae mediate binding to N-acetylglucosamine-containing receptors present on calf intestinal mucosal cells.
(13) Their visualisation appeared to be enhanced when ruthenium red was incorporated n the glutaraldehyde-osmium fixative but only when sections were stained with heavy metal salts, indicating that the fimbriae and capsule were not predominantly polysaccharide in nature.
(14) Type 1 fimbriae from Actinomyces viscosus T14V, composed of a complex protein of Mr 65,000, mediate the adherence of A. viscosus T14V to the host, whereas type 1 fimbriae-specific antibodies inhibit adherence.
(15) In the area of the fimbriae the majority of cells appeared to be ciliated epithelium, but near to the uterus their number decreased.
(16) Although their biochemical characteristics and amino acid composition were typical of fimbriae in general, these thin fimbriae were clearly distinct from other previously characterized fimbriae.
(17) Septal efferent fibers from the neurons in the medial septal nucleus are destroyed by fimbria-fornix aspirative lesion.
(18) Serogrouping of Bacteroides nodosus is based on antigenic differences in fimbriae of the different New Zealand prototype strains.
(19) A mutant, pUT2002, containing a deletion remote from the structural gene encoding the 17-kilodalton subunit protein of type 1 fimbriae failed to agglutinate guinea pig erythrocytes even though the bacteria expressed fimbriae morphologically and antigenically indistinguishable from those produced by the intact recombinant plasmid.
(20) The combining sites of type 1 fimbriae of the salmonellae and of other enteric bacteria are different from those of E. coli in that they are smaller and do not possess a hydrophobic region.
Flagella
Definition:
(pl. ) of Flagellum
Example Sentences:
(1) Caulobacter flagella are unusual in that they contain two different flagellin subunits.
(2) Electron microscopy has been used to monitor the effect of detergent treatment on the morphology of the organism and to examine the detailed structure of the flagella.
(3) The remaining nonswarming mutants produced flagella but were defective in surface-induced elongation.
(4) Rabbits immunized with the flagella developed an immune response to the flagella but showed no statistically significant prolongation of incubation time or diminution of lesion severity when challenged intradermally with 4 X 10(3) Treponema pallidum organisms.
(5) Sperm mitochondria and flagella were found in the egg 15 min after insemination.
(6) Reconstituted flagellar filaments were demonstrated by three complementary methods: transmission electron microscopy, antigenic reactivity with H7 antiserum by a dot blot immunoassay, and immunogold localization of antiserum raised to the purified antigen to intact flagella on whole E. coli O157:H7.
(7) Considerable differences in the molecular weight of flagellin accompanied the previously described structural differences between flagella from strains with different H antigens.
(8) Light microscopy of swimming cells indicates that the flagella beat in two synchronous pairs, with each pair exhibiting a breast-stroke-like motion.
(9) Results indicate that sperm first exhibit WGA reactivity on their flagellae in the region of the distal caput, and that the appearance of WGA receptors is due to the binding of a 54-Kd glycoprotein (SMA4) to the cell surface.
(10) During mid-spermatid stages, the centrioles give rise to the flagella and concomitantly undergo differentiation to become the basal bodies.
(11) Because of a right-handed cell cylinder and left-handed periplasmic flagella along with bent ends having helix diameters greater than those of either the cell cylinder or periplasmic flagella, we conclude that there is a complex interaction of the periplasmic flagella and the cell cylinder to form the bent ends.
(12) When cells of Proteus vulgaris were transferred from 37 to 42 C, a temperature at which they continue to grow almost optimally, they ceased to form flagella after approximately one generation time.
(13) Putative flagella proteins were identified from isolated flagella and acid-extractable surface material and by immunoblotting with anti-flagella antibodies.
(14) Analysis of the protein composition of short flagella from a mutant indicated that a single flagellum contains about 10 to 20 HAP1, 10 to 20 HAP2, and 10 to 40 HAP3 molecules.
(15) Flagellation of the lateral flagella depended on the pH of the medium.
(16) The isolated organism measured 2.0 to 3.5 microns in length (excluding flagella) by 0.17 to 0.25 micron in width and typically had a single terminal sheathed flagellum.
(17) The ability of Typhimurium to adhere to and invade epithelial cells has been associated with flagella, pili of type I and mannose-resistant haemagglutinating activity.
(18) In the flagella insertion area, there was a highly electron-dense component, the "polar membrane".
(19) Flagella extracted from five serovars, representative of the pathogenic and saprophytic species of the Leptospiraceae, were morphologically similar.
(20) The heteromorphous appearance of bdellovibrio flagella arose from the sequential assembly of these subunits.