Fimbriae

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'fimbria, fimbriae. Send us feedback about these examples. Accessed 24 Fimbriae.

Fimbriae are long filamentous polymeric protein structures located at the surface of bacterial cells. They enable the bacteria to bind to specific receptor structures and thereby to colonise specific surfaces. Fimbriae consist of so-called major and minor subunits, which form, in a specific order, the fimbrial structure. In this review emphasis is put on the genetic organisation, regulation and especially on the biosynthesis of fimbriae of enterotoxigenic Escherichia coli strains, and more in particular on K88 and related fimbriae, with ample reference to the well-studied P and type 1 fimbriae. Molecular and structural aspects of the secretion of fimbrial subunits across the cytoplasmic membrane, the interaction of these subunits with the periplasmic molecular chaperone, their translocation to the inner site of the outer membrane and their interaction with the usher protein, as well as the ordered translocation of the subunits across the outer membrane and their assembly into a grwoing fimbrial structure will be described.

Fimbriae

Fimbriae tubae project from the end of the fallopian tubes. They are lined with cilia, or hair-like structures, that guide the egg to the uterus. From there, the egg is either fertilized or shed during the menstrual cycle. The fimbriae of the uterine tube , also known as fimbriae tubae , are small, fingerlike projections connected to the end of the fallopian tubes, through which eggs move from the ovaries to the uterus. Small epithelial cells — those that line cavities throughout the body — with small, slender cilia microscopic, hair-like structures pulsate inside the fallopian tubes to guide the ovum, or egg, from the ovary to the uterus. Because the ovum cannot move by itself, the sweeping movement of the cilia of the fimbriae dictates its movement. It generally takes about 3 to 5 days for an egg to leave the ovary and land in the uterus. Once in the fallopian tube or uterus, the egg can be fertilized by sperm after intercourse, possibly leading to pregnancy. If the egg is not fertilized, it will be shed during the next cycle of menstrual bleeding. Our experts continually monitor the health and wellness space, and we update our articles when new information becomes available. The thoracic spinal vertebrae consist of 12 total vertebrae and are located between the cervical vertebrae which begin at the base of the skull and…. The coccyx, also known as the tailbone, is a small, triangular bone resembling a shortened tail located at the bottom of the spine. It is composed of…. In the central nervous system, there are three different layers that cover the spinal cord and brain.

It captures the effects of EPS osmotic spreading of biofilms under different growth rate ratios, as reported by Seminara et fimbriae. Net growth rate of continuum heterogeneous biofilms with inhibition kinetics, fimbriae. Thomas C.

A pilus Latin for 'hair'; pl. All conjugative pili are primarily composed of pilin — fibrous proteins , which are oligomeric. Dozens of these structures can exist on the bacterial and archaeal surface. Some bacteria, viruses or bacteriophages attach to receptors on pili at the start of their reproductive cycle. Pili are antigenic. They are also fragile and constantly replaced, sometimes with pili of different composition, resulting in altered antigenicity.

The fimbria of hippocampus refers to bundles of fibers that are formed when the white matter fibers known as the alveus converge on the medial side of the hippocampus. These fimbriae, or fiber bundles, subsequently extend further to form the crura of the fornix. Snell, R. Blumenfield, H. Sinauer Associates, Inc. Human anatomy 2. Underlying structures: There are no anatomical children for this anatomical part. Human anatomy 1. Human neuroanatomy.

Fimbriae

Found mainly in Gram-negative organisms, fimbriae or pili singular: pilus are hair-like filaments tiny hollow projections that extend from the cell membrane into the external environment. A pilus is composed of subunits of the protein pilin. Fimbriae pili are shorter, straighter, and more numerous than bacterial flagella.

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Maurer L. Taniguchi T. As the fimbriae number is increased, these individual cell clusters coalesce into a single agglomerate. A number of parameters characterizing the biofilm development are plotted in Fig 6 as functions of the number of cells in the bacterial colony. The results of the paper include an examination of the effects of varying the ratio of EPS to cell production rates and the number of fimbriae attached to each cell. Cross-talk between immunity and behavior: insights from entomopathogenic fungi and their insect hosts. Fimbria Latin for 'fringe', pl. Revision received:. Rodrigues and Elimelech [ 24 ] and Wang et al. Immunoglobulin-like PapD chaperone caps and uncaps interactive surfaces of nascently translocated pilus subunits. Pili are antigenic. Aldape M. Structural requirements for the glycolipid receptor of human uropathogenic Escherichia coli. Taylor R.

The infundibulum of the uterine tube is the beginning of the uterine tube, just after the abdominal ostium of uterine tube, and is in relation to the free border and medial surface of the ovary.

Summing this measure over all contacting pairs of particles gives. Biofilms in water and wastewater treatment In: Wilderer P, editor. Both discrete and continuum models have been developed and applied to biofilm systems, both with different advantages and disadvantages [ 30 — 38 ]. Bakker D. The fimbrial force is well known from experimental investigations to be of critical importance for biofilm development, but the role of fimbrial force on biofilm structural development has not been studied to date in the computational literature. Madsen O. Identification, characterization and sequence of the FG gene, which determines receptor binding of Escherichia coli F17 fimbriae. These various effects can be combined to write the EPS-bacteria and bacteria-bacteria interaction forces and torques as. Holmgren J. The classification does not always overlap with the structural or evolutionary-based types, as convergent evolution occurs. Silverblatt F. Lear G.