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Статті в журналах з теми "Bacterial cell motility"
Robbins, Jennifer R., Angela I. Barth, Hélène Marquis, Eugenio L. de Hostos, W. James Nelson, and Julie A. Theriot. "Listeria monocytogenes Exploits Normal Host Cell Processes to Spread from Cell to Cell✪." Journal of Cell Biology 146, no. 6 (September 20, 1999): 1333–50. http://dx.doi.org/10.1083/jcb.146.6.1333.
Повний текст джерелаCossart, Pascale. "Actin-based bacterial motility." Current Opinion in Cell Biology 7, no. 1 (January 1995): 94–101. http://dx.doi.org/10.1016/0955-0674(95)80050-6.
Повний текст джерелаKurmasheva, Naziia, Vyacheslav Vorobiev, Margarita Sharipova, Tatyana Efremova, and Ayslu Mardanova. "The Potential Virulence Factors ofProvidencia stuartii: Motility, Adherence, and Invasion." BioMed Research International 2018 (2018): 1–8. http://dx.doi.org/10.1155/2018/3589135.
Повний текст джерелаNakamura, Shuichi, and Tohru Minamino. "Flagella-Driven Motility of Bacteria." Biomolecules 9, no. 7 (July 14, 2019): 279. http://dx.doi.org/10.3390/biom9070279.
Повний текст джерелаMatz, Carsten, and Klaus Jürgens. "High Motility Reduces Grazing Mortality of Planktonic Bacteria." Applied and Environmental Microbiology 71, no. 2 (February 2005): 921–29. http://dx.doi.org/10.1128/aem.71.2.921-929.2005.
Повний текст джерелаZegadło, Katarzyna, Monika Gieroń, Paulina Żarnowiec, Katarzyna Durlik-Popińska, Beata Kręcisz, Wiesław Kaca, and Grzegorz Czerwonka. "Bacterial Motility and Its Role in Skin and Wound Infections." International Journal of Molecular Sciences 24, no. 2 (January 15, 2023): 1707. http://dx.doi.org/10.3390/ijms24021707.
Повний текст джерелаPatankar, Yash R., Rustin R. Lovewell, Matthew E. Poynter, Jeevan Jyot, Barbara I. Kazmierczak, and Brent Berwin. "Flagellar Motility Is a Key Determinant of the Magnitude of the Inflammasome Response to Pseudomonas aeruginosa." Infection and Immunity 81, no. 6 (March 25, 2013): 2043–52. http://dx.doi.org/10.1128/iai.00054-13.
Повний текст джерелаLovewell, Rustin R., Sandra M. Hayes, George A. O'Toole, and Brent Berwin. "Pseudomonas aeruginosaflagellar motility activates the phagocyte PI3K/Akt pathway to induce phagocytic engulfment." American Journal of Physiology-Lung Cellular and Molecular Physiology 306, no. 7 (April 1, 2014): L698—L707. http://dx.doi.org/10.1152/ajplung.00319.2013.
Повний текст джерелаAkahoshi, Douglas T., Dean E. Natwick, Weirong Yuan, Wuyuan Lu, Sean R. Collins, and Charles L. Bevins. "Flagella-driven motility is a target of human Paneth cell defensin activity." PLOS Pathogens 19, no. 2 (February 23, 2023): e1011200. http://dx.doi.org/10.1371/journal.ppat.1011200.
Повний текст джерелаPalma, Victoria, María Soledad Gutiérrez, Orlando Vargas, Raghuveer Parthasarathy, and Paola Navarrete. "Methods to Evaluate Bacterial Motility and Its Role in Bacterial–Host Interactions." Microorganisms 10, no. 3 (March 4, 2022): 563. http://dx.doi.org/10.3390/microorganisms10030563.
Повний текст джерелаДисертації з теми "Bacterial cell motility"
Altinoglu, Ipek. "Organization of Bacterial Cell Pole." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS367/document.
Повний текст джерелаIn rod shaped bacteria, cell poles serve as important subcellular domains involved in several cellular processes including motility, chemotaxis, protein secretion, antibiotic resistance, and chromosome segregation. In the cholera pathogen Vibrio cholerae, vibrioid rod shape and single polarized flagellum involve in the virulence. Polar landmark protein HubP was shown to interact with multiple ATPases, such as ParA1 (chromosome segregation), ParC (polar localization of chemotaxis apparatus), and FlhG (flagella biosynthesis), thus organizing the polar identity of V. cholerae by tethering proteins to cell pole. However, the exact molecular mechanisms are yet to be elucidated. In this thesis, I tackled to unveil comprehensive view of the cell pole organization which implies the orchestration of different cellular functions, by identifying further interaction partners of HubP as well as drawing conceivable picture of the cell pole by super-resolution photoactivated localization microscopy. To identify new interaction partners of HubP, I used minicells in which cell poles were enriched as they derived from cell division near the cell pole. Difference in protein composition between HubP+ and HubP- minicells were examined by isobaric tags for relative and absolute quantitation. Among ~800 proteins identified, ~80 proteins were considered to be enriched in HubP+ minicells including many expected proteins (FlhG, ParC and downstream chemotaxis proteins). I chose 14 proteins to investigate their subcellular localization with fluorescent microscopy. In conclusion, I discovered 4 proteins that showed polar localization in a HubP-dependent manner. These proteins are VbrX, VbrY, and 2 hypothetical proteins MotV and MotW. ∆motV and ∆motW showed significant defect in a diameter of travel in soft agar plate that suggesting the possible involvement in chemotaxis and/or motility. Whereas electron microscopy showed that both mutants possess intact monotrichous flagellum, video-tracking revealed that the two mutants showed rather distinct defects during swimming: MotV is rather turning mutant while MotW is a speed mutant. Fluorescent microscopy experiments indicated that MotV, MotW and HubP showed distinct polar dynamics over cell cycle. For fine-scale observation of the cell pole by PALM, it was appreciated that novel tools for high-throughput analysis was demanded. Since brightfield images are not sufficient to have accurate contours of small and low contrast bacterial cells, I developed new labeling technique with photoactivatable fluorescent proteins for precise outlining at either inner membrane or periplasm. Furthermore, we created Matlab-based software called Vibio which integrates cell outline and the list of molecules obtained by super-resolution microscopy. High-throughput capability of the software enabled to analyze distribution of detected molecules from single cell to whole bunch of cells in a manner that cells are oriented by cell curvature. These allowed me to discover that HubP is mostly lopsided at the convex side of the cell pole, while its partners mostly located middle of the pole. Altogether, I successfully unveiled 4 novel interaction partners of HubP. I revealed of the function of hypothetical proteins that are involved in cell motility. I developed new labeling technique for precise polar localization that works well for PALM image analysis in Vibio. Therefore, I observed precise polar localization of HubP and other polar proteins
Theves, Matthias. "Bacterial motility and growth in open and confined environments." Phd thesis, Universität Potsdam, 2013. http://opus.kobv.de/ubp/volltexte/2014/7031/.
Повний текст джерелаBakterien sind einzellige Mikroorganismen, die sich in flüssigem Medium mit Hilfe von rotierenden Flagellen, länglichen Fasern aus Proteinen, schwimmend fortbewegen. In Gegenwart einer Grenzfläche und unter günstigen Umweltbedingungen siedeln sich Bakterien an der Oberfläche an und gehen in eine sesshafte Wachstumsphase über. Die Wachstumsphase an der Oberfläche ist gekennzeichnet durch das Absondern von klebrigen, nährstoffreichen extrazellulären Substanzen, welche die Verbindung der Bakterien untereinander und mit der Oberfläche verstärken. Die entstehenden Aggregate aus extrazellulärer Matrix und Bakterien werden als Biofilm bezeichnet. In der vorliegenden Arbeit untersuchten wir ein Bodenbakterium, Pseudomonas putida (P. putida), welches in wässriger Umgebung an festen Oberflächen Biofilme ausbildet. Wir benutzten photolithographisch hergestellte Mikrokanäle und Hochgeschwindigkeits-Videomikroskopie um die Bewegung schwimmender Zellen in verschiedenen Abständen zu einer Glasoberfläche aufzunehmen. Zusätzlich wurden Daten über das parallel stattfindende Wachstum der sesshaften Zellen an der Oberfläche aufgezeichnet. Die Analyse von Trajektorien frei schwimmender Zellen zeigte, dass sich Liniensegmente, entlang derer sich die Zellen in eine konstante Richtung bewegen, mit scharfen Kehrtwendungen mit einem Winkel von 180 Grad abwechseln. Dabei änderte sich die Schwimmgeschwindigket von einem zum nächsten Segment im Mittel um einen Faktor von 2. Unsere experimentellen Daten waren die Grundlage für ein mathematisches Modell zur Beschreibung der Zellbewegung mit alternierender Geschwindigkeit. Die analytische Lösung des Modells zeigt elegant, dass eine Population von Bakterien, welche zwischen zwei Geschwindigkeiten wechseln, signifikant schneller expandiert als eine Referenzpopulation mit Bakterien konstanter Schwimmgeschwindkeit. Im Vergleich zu frei schwimmenden Bakterien beobachteten wir in der Nähe der Oberfläche eine um 15% erhöhte Schwimmgeschwindigkeit der Zellen und eine um 90 % erhöhte Winkel-geschwindigkeit. Außerdem wurde eine signifikant höhere Zelldichte in der Nähe der Grenzfläche gemessen. Während sich der Anstieg in der Winkelgeschwindigkeit durch ein Drehmoment erklären lässt, welches in Oberflächennähe auf den rotierenden Zellkörper und die rotierenden Flagellen wirkt, kann die Beschleunigung und Akkumulation der Zellen bei dem beobachteten Abstand nicht durch existierende Theorien erklärt werden. Unsere Ergebnisse lassen vermuten, dass neben hydrodynamischen Effekten auch Kollisionen mit der Oberfläche eine wichtige Rolle spielen und sich die Rotationsgeschwindigkeit der Flagellenmotoren in der Nähe einer festen Oberfläche grundsätzlich verändert. Unsere Experimente zum Zellwachstum an Oberflächen zeigten, dass sich etwa sechs Stunden nach Beginn des Experiments größere Kolonien an der Kanaloberfläche auflösen und Zellen für ca. 30 Minuten zurück in die schwimmende Phase wechseln. Ergebnisse von mehreren Vergleichsexperimenten deuten darauf hin, dass dieser Übergang nach einer festen Anzahl von Zellteilungen an der Oberfläche erfolgt und nicht durch den Verbrauch des Wachstumsmediums bedingt wird.
Mouhamar, Fabrice. "Rôle du cytosquelette d'Actine bactérien MreB dans la motilité cellulaire chez Myxococcus xanthus." Thesis, Aix-Marseille 2, 2011. http://www.theses.fr/2011AIX22093.
Повний текст джерелаMyxococcus xanthus has a multicellular developmental cycle which is dependent on the capacity of the cells to move accross solid surfaces. M. xanthus uses two motility systems: Social motility system is dependent on Type-IV pili, and the Adventurous motility system, the mechanism of which is poorly understood. Our working hypothesis is that Adventurous motility is performed by adhesion points localized along the cell body where a molecular machinery pulls the cell body by interacting with the MreB cytoskeleton. My project aims to characterize the relationship between the adhesion points and the cytoskeleton during movement. To study the involvement of MreB during motility we use A22, a drug known to rapidly and specifically depolymerise in live microscopy assays. Furthermore, I have study also the interactions between MreB and differents proteins like MglA a small GTPase, which we belive is essential for the recruitment of the machineries
El, khoury Nay. "Intégration des bactéries planctoniques dans le biofilm et étude fonctionnelle du gène plasmidique Bthur62720 chez Bacillus thuringiensis Massive integration of planktonic cells within a developing biofilm Polar localization of lipid rafts is dependent on plasmidic genes in Bacillus thuringiensis." Thesis, université Paris-Saclay, 2021. http://www.theses.fr/2021UPASL014.
Повний текст джерелаBacillus thuringiensis is able to produce a pellicle at the air-liquid interface in glass tubes under static conditions. During biofilm formation, two populations coexist: a sessile floating population and a planktonic population, located in the culture medium beneath the pellicle. Using spectrophotometric measurements, we followed the growth of both populations during the B. thuringiensis 407 pellicle formation. Our results show that while the biofilm biomass increases rapidly, the planktonic population growth drops sharply. This decrease is not observed with the 407 spoOA mutant or for strains unable to form a biofilm, and cannot be attributed to cell lysis or cell sedimentation. Therefore, it is the result of a massive integration of planktonic cells in the preformed pellicle. We also visualized, using epi-fluorescence microscopy, the integration of planktonic bacteria of the 407 strain in its preformed biofilm. The recruited cells are located in restricted areas of the biofilm, where the density of sessile cells is low, revealing a heterogeneous spatial distribution of the immigrant cells within the biofilm. To identify the mechanisms involved in the recruitment of planktonic cells in the biofilm, we screened a bank of mutants of the 407 strain, obtained by random mutagenesis, for their ability to integrate a pre-existing biofilm. One of the mutants in the library is strongly affected in its ability to integrate a biofilm. This deficiency is caused by the disruption of the Bthur62720 gene, which is carried by the BTB-9p plasmid and encodes a 21 kDa protein. This protein has no homolog and in silico analysis predict a signal peptide, a N-terminal domain of unknown function and a C-terminal membrane domain. Using immunocytochemistry and translational fusion assays with GFP, we showed that this protein is parietal, polar and that its N-terminal domain is cytoplasmic. With a specific dye of charged membrane phospholipids, 10-N-nonyl acridine orange, we showed that the deletion of Bthur002_62720 disorganizes the lipid rafts distribution, which appear essentially polar in wild type strain 407. Moreover, this deletion strongly affects linear swimming, but not bacterial tumbling or the presence of flagella. These results allow us to hypothesis that Bthur62720 stabilizes the lipid rafts located at the cell poles. The polar localization of these rafts, required for the clustering of chemoreceptors, would be necessary to ensure a normal chemotaxis function and thus, bacterial swimming
Tomada, Selena. "A genomic and transcriptomic approach to characterize a novel biocontrol bacterium Lysobacter capsici AZ78." Doctoral thesis, 2017. http://hdl.handle.net/10449/37925.
Повний текст джерелаHardcastle, Joseph. "Studies on Helicobacter Pylori motility: influence of cell morphology, medium rheology, and swimming mechanism." Thesis, 2016. https://hdl.handle.net/2144/17728.
Повний текст джерелаConstantino, Maira Alves. "Investigating effects of morphology and flagella dynamics on swimming kinematics of different helicobacter species using single-cell imaging." Thesis, 2017. https://hdl.handle.net/2144/27383.
Повний текст джерелаЧастини книг з теми "Bacterial cell motility"
Ducret, Adrien, Olivier Théodoly, and Tâm Mignot. "Single Cell Microfluidic Studies of Bacterial Motility." In Methods in Molecular Biology, 97–107. Totowa, NJ: Humana Press, 2012. http://dx.doi.org/10.1007/978-1-62703-245-2_6.
Повний текст джерелаStradal, Theresia E. B., Silvia Lommel, Jürgen Wehland, and Klemens Rottner. "Host-Pathogen Interactions and Cell Motility: Learning from Bacteria." In Cell Migration in Development and Disease, 205–36. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527604669.ch12.
Повний текст джерела"Rotation of Bacterial Flagellar Filaments." In The Fluid Dynamics of Cell Motility, 120–38. Cambridge University Press, 2020. http://dx.doi.org/10.1017/9781316796047.011.
Повний текст джерелаMaynard Smith, John, and Eors Szathmary. "The origin of eukaryotes." In The Major Transitions in Evolution. Oxford University Press, 1997. http://dx.doi.org/10.1093/oso/9780198502944.003.0012.
Повний текст джерелаPrimrose, Sandy B. "Some Common Factors Involved in Host-Pathogen Interactions." In Microbiology of Infectious Disease, 15–22. Oxford University Press, 2022. http://dx.doi.org/10.1093/oso/9780192863843.003.0002.
Повний текст джерелаTerashima, Hiroyuki, Seiji Kojima, and Michio Homma. "Chapter 2 Flagellar Motility in Bacteria." In International Review of Cell and Molecular Biology, 39–85. Elsevier, 2008. http://dx.doi.org/10.1016/s1937-6448(08)01402-0.
Повний текст джерелаChandra, Rashmi, and Sharyn A. Endow. "Chapter 8 Expression of Microtubule Motor Proteins in Bacteria for Characterization in in Vitro Motility Assays." In Methods in Cell Biology, 115–27. Elsevier, 1993. http://dx.doi.org/10.1016/s0091-679x(08)60165-x.
Повний текст джерелаТези доповідей конференцій з теми "Bacterial cell motility"
Du, Huijing, Zhiliang Xu, Morgen Anyan, Oleg Kim, W. Matthew Leevy, Joshua D. Shrout, and Mark Alber. "Pseudomonas Aeruginosa Cells Alter Environment to Efficiently Colonize Surfaces Using Fluid Dynamics." In ASME 2012 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/sbc2012-80316.
Повний текст джерелаSamadi, Zahra, Malihe Mehdizadeh Allaf, Thomas Vourc'h, Christopher T. DeGroot, and Hassan Peerhossaini. "Are Active Fluids Age-Dependent?" In ASME 2022 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/fedsm2022-87914.
Повний текст джерелаЗвіти організацій з теми "Bacterial cell motility"
Crowley, David E., Dror Minz, and Yitzhak Hadar. Shaping Plant Beneficial Rhizosphere Communities. United States Department of Agriculture, July 2013. http://dx.doi.org/10.32747/2013.7594387.bard.
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