Cell Biology

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    Assessing Swarming of Aerobic Bacteria from Human Fecal Matter
    Authors:  Arjun S. Byju, Deeti Patel, Weijie Chen and Sridhar Mani, date: 05/05/2021, view: 1904, Q&A: 0

    Swarming – swift movement across a surface via flagella propulsion – is a unique property of many bacteria. The role of swarming, particularly among bacterial populations of the human gut microbiome, is not yet fully understood;

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    Assessing Different Ways of Bacillus subtilis Spreading over Abiotic Surfaces
    Authors:  Marco Bartolini and Roberto Grau, date: 11/20/2019, view: 3245, Q&A: 0
    Surface-associate motility on biotic and abiotic environments is a key mechanism used by the model bacterium Bacillus subtilis and its closest relatives (i.e., B. amyloliquefaciens, B. thuringiensis, B. cereus ...
    Single-cell Motility Analysis of Tethered Human Spermatozoa
    Authors:  William M. Skinner, Nadja Mannowetz, Polina V. Lishko and Nadia R. Roan, date: 03/05/2019, view: 5267, Q&A: 0
    Vigorous sperm flagellar motility is essential for fertilization, and so the quantitative measurement of motility is a useful tool to assess the intrinsic fertility potential of sperm cells and explore how various factors can alter sperm’s ability ...
    Quantification of Bacterial Twitching Motility in Dense Colonies Using Transmitted Light Microscopy and Computational Image Analysis
    Authors:  Benjamin Smith, Jianfang Li, Matteo Metruccio, Stephanie Wan, David Evans and Suzanne Fleiszig, date: 04/20/2018, view: 5512, Q&A: 0
    A method was developed to allow the quantification and mapping of relative bacterial twitching motility in dense samples, where tracking of individual bacteria was not feasible. In this approach, movies of bacterial films were acquired using ...
    Bacterial Aggregation Assay in the Presence of Cyclic Lipopeptides
    Authors:  Pengyuan Xiu, Rui Liu, Dechao Zhang and Chaomin Sun, date: 01/05/2018, view: 6643, Q&A: 0
    Lipopeptides is an important class of biosurfactants having antimicrobial and anti-adhesive activity against pathogenic bacteria. These include surfactin, fengycin, iturin, bacillomycin, mycosubtilin, lichenysin, and pumilacidin (Arima et al. ...
    Transmission Electron Microscopy of Centrioles, Basal Bodies and Flagella in Motile Male Gametes of Land Plants
    Motile male gametes (spermatozoids) of land plants are coiled and contain a modified and precisely organized complement of organelles that includes a locomotory apparatus with two to thousands of flagella. Each flagellum is generated from a basal ...
    Plasmodium Sporozoite Motility on Flat Substrates
    Authors:  Henriette L Prinz, Julia M Sattler and Friedrich Frischknecht, date: 07/20/2017, view: 7566, Q&A: 0
    Plasmodium sporozoites are the infectious, highly motile forms of the malaria parasite transmitted by Anopheles mosquitoes. Sporozoite motility can be assessed following the dissection of Anopheles salivary glands and ...
    ARP2/3 Phosphorylation Assay in the Presence of Recombinant Bacterial Effectors
    Authors:  Céline Michard, Lawrence L. LeClaire and Patricia Doublet, date: 04/05/2017, view: 6940, Q&A: 0
    The Actin-Related Protein 2/3 (ARP2/3) complex is an actin nucleator that generates a branched actin network in mammalian cells. In addition to binding nucleation promoting factors, LeClaire et al. demonstrated that its phosphorylation ...
    Force Measurement on Mycoplasma mobile Gliding Using Optical Tweezers
    Authors:  Masaki Mizutani and Makoto Miyata, date: 02/05/2017, view: 6557, Q&A: 0
    Dozens of Mycoplasma species, belonging to class Mollicutes form a protrusion at a pole as an organelle. They bind to solid surfaces through the organelle and glide in the direction by a unique mechanism including repeated cycles ...
    Measurements of Free-swimming Speed of Motile Salmonella Cells in Liquid Media
    Authors:  Yusuke V. Morimoto, Keiichi Namba and Tohru Minamino, date: 01/05/2017, view: 7501, Q&A: 0
    Bacteria such as Escherichia coli and Salmonella enterica swim in liquid media using the bacterial flagella. The flagellum consists of the basal body (rotary motor), the hook (universal joint) and the filament (helical screw). ...



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