نتایج جستجو برای: cs3 pili

تعداد نتایج: 2568  

Journal: :Journal of bacteriology 2006
Ahmed Touhami Manfred H Jericho Jessica M Boyd Terry J Beveridge

Type IV pili play an important role in bacterial adhesion, motility, and biofilm formation. Here we present high-resolution atomic force microscopy (AFM) images of type IV pili from Pseudomonas aeruginosa bacteria. An individual pilus ranges in length from 0.5 to 7 microm and has a diameter from 4 to 6 nm, although often, pili bundles in which the individual filaments differed in both length an...

2007
Thomas J. Burr Harvey C. Hoch Luciana Cursino Yaxin Li

Type I and type IV pili of Xylella fastidiosa play different roles in twitching motility, biofilm formation, and cell-cell aggregation. Thirty twitching mutants were generated with an EZ::TN transposome system and type IV pilus-associated genes were identified, including fimT, pilX, pilY1, pilO, and pilR. Mutations in all resulted in a twitch-minus phenotype except that pilY1 mutant was twitchi...

Journal: :Our Dermatology Online 2022

Hair shaft disorders encompass a wide range of hair defects with or without fragility, which could be acquired inherited genetically. may localized generalized and are characterized by changes in color, structure, length, density. Pili torti, also called twisted hair, is clinical entity the flattened 180° along its axis. annulati described as striped showing alternate light dark bands. Trichorr...

Journal: :Journal of bacteriology 1973
R J O'Callaghan L Bundy R Bradley W Paranchych

The arsenate poisoning of R17 phage eclipse in Escherichia coli cultures grown in glycerol-containing medium has been found to be mediated by a dramatic loss in cell-associated F pili. Poisoning was very rapid and was nearly complete within 3 min at 37 C. The loss of pili was reflected by a 90% reduction in the ability of these cells to attach ribonucleic acid phage and by a reduction in the pi...

Journal: :Biophysical journal 2014
Vasily Zaburdaev Nicolas Biais Michael Schmiedeberg Jens Eriksson Ann-Beth Jonsson Michael P Sheetz David A Weitz

Neisseria gonorrheae bacteria are the causative agent of the second most common sexually transmitted infection in the world. The bacteria move on a surface by means of twitching motility. Their movement is mediated by multiple long and flexible filaments, called type IV pili, that extend from the cell body, attach to the surface, and retract, thus generating a pulling force. Moving cells also u...

Journal: :Skin appendage disorders 2015
Aline Donati Anna Cecília Andriolo Marina Barletta Neusa Valente Ricardo Romiti

PURPOSE To determine the relationship between pili annulati (PA) and acquired trichorrhexis nodosa (TN) seen in the same patient, considering the two main theories evoked by previous studies: greater stiffness of darker PA bands or associated cuticular damage. PROCEDURES Light microscopy of hair shafts from different regions of the patient's scalp. RESULTS TN was not superimposed to dark ba...

Journal: :Infection and immunity 1986
R M Gander V L Thomas

Multiple pilus types from a uropathogenic strain of Escherichia coli O6, strain 6260, were characterized by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), high-pressure liquid chromatography, binding assays, and erythrocyte adsorption. In addition, monoclonal antibodies were raised against purified pili of E. coli 6260 and used for immunological characterization. SDS-PAGE...

2009
Lawrence P. Wackett

Bacterial growth of surface pili http://medgadget.com/archives/2008/05/ how_bacteria_grow_their_surface_pili.html Pili are important in bacterial self-immobilization. This article summarizes new knowledge on the structure of bacterial pili. Bacterial surface appendages http://www.cehs.siu.edu/fix/medmicro/genmicr.htm This general microbiology page describes bacterial surface structures relevant...

Journal: :International Journal of Trichology 2019

Journal: :Archiv für Dermatologie und Syphilis 1905

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