Microbiology

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    Protocols in Current Issue
    Single Cell Analysis and Sorting of Aspergillus fumigatus by Flow Cytometry
    Authors:  Gareth Howell and Robert-Jan Bleichrodt, date: 04/20/2021, view: 28, Q&A: 0
    [Abstract]

    Experimental results in fungal biology research are usually obtained as average measurements across whole populations of cells, whilst ignoring what is happening at the single cell level. Microscopy has allowed us to study single-cell behavior, but it has low throughput and cannot be used to select individual cells for downstream experiments. Here

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    Detection and Quantification of African Swine Fever Virus in MA-104 Cells
    [Abstract]

    Detection of live African swine fever virus (ASFV) has historically relied on the use of primary swine macrophages (PSM). PSM do not replicate and have to be isolated fresh from donor swine. We previously identified that a MA-104 cells (ATCC #CRL-2378.1), a commercially available cell line isolated from African green monkey (Cercopithecus

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    Generation and Implementation of Reporter BHK-21 Cells for Live Imaging of Flavivirus Infection
    Authors:  Jorge L. Arias-Arias and Rodrigo Mora-Rodríguez, date: 03/05/2021, view: 484, Q&A: 0
    [Abstract]

    The genus Flavivirus within the family Flaviviridae includes many viral species of medical importance, such as yellow fever virus (YFV), Zika virus (ZIKV), and dengue virus (DENV), among others. Presently, the identification of flavivirus-infected cells is based on either the immunolabeling of viral proteins, the application of recombinant

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    An Imaging Flow Cytometry Method to Measure Citrullination of H4 Histone as a Read-out for Neutrophil Extracellular Traps Formation
    Authors:  Emilia A. Barbu, Venina M. Dominical, Laurel Mendelsohn and Swee Lay Thein, date: 02/20/2021, view: 863, Q&A: 0
    [Abstract]

    The formation of neutrophil extracellular traps (NETs) is thought to play a critical role in infections and propagating sterile inflammation. Histone citrullination is an essential and early step in NETs formation, detectable prior to the formation of the hallmark extracellular DNA-scaffolded strands. In addition to the classical microscopy

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    Confocal Microscopy of Reovirus Transport in Living Dorsal Root Ganglion Neurons
    Authors:  Pavithra Aravamudhan, Krishnan Raghunathan and Terence S. Dermody, date: 11/20/2020, view: 952, Q&A: 0
    [Abstract]

    Neurotropic reoviruses repurpose host machinery to traffic over long distances in neuronal processes and access distal replication sites. Understanding mechanisms of neuronal transmission is facilitated by using simplified in vitro primary neuronal culture models. Advances in the design of compartmentalized microfluidic devices lend robustness to

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    Analysis of Gram-negative Bacteria Peptidoglycan by Ultra-performance Liquid Chromatography
    Authors:  Laura Alvarez, Baptiste Cordier, Sven van Teeffelen and Felipe Cava, date: 10/05/2020, view: 1122, Q&A: 0
    [Abstract] Bacteria are surrounded by a protective peptidoglycan cell wall. Provided that this structure and the enzymes involved are the preferred target for our most successful antibiotics, determining its structural and chemical complexity is of the highest interest. Traditionally, high-performance liquid chromatography (HPLC) analyses have been ...
    Live-cell Imaging by Super-resolution Confocal Live Imaging Microscopy (SCLIM): Simultaneous Three-color and Four-dimensional Live Cell Imaging with High Space and Time Resolution
    Authors:  Kazuo Kurokawa and Akihiko Nakano, date: 09/05/2020, view: 2295, Q&A: 0
    [Abstract] Many questions in cell biology can be solved by state-of-the-art technology of live cell imaging. One good example is the mechanism of membrane traffic, in which small membrane carriers are rapidly moving around in the cytoplasm to deliver cargo proteins between organelles. For directly visualizing the events in membrane trafficking system, ...
    In vitro Cultivation and Visualization of Malaria Liver Stages in Primary Simian Hepatocytes
    Authors:  Devendra Kumar Gupta and Thierry Diagana, date: 08/20/2020, view: 1313, Q&A: 0
    [Abstract] Human liver is the primary and obligatory site for malaria infection where sporozoites invade host hepatocytes. Malaria hepatic stages are asymptomatic and represent an attractive target for development of anti-malarial interventions and vaccines. However, owing to lack of robust and reproducible in vitro culture system, it is difficult ...
    Live Cell Measurement of the Intracellular pH of Yeast by Flow Cytometry Using a Genetically-Encoded Fluorescent Reporter
    Authors:  Catherine G. Triandafillou and D. Allan Drummond, date: 06/20/2020, view: 1617, Q&A: 0
    [Abstract] The intracellular pH of yeast is a tightly regulated physiological cue that changes in response to growth state and environmental conditions. Fluorescent reporters, which have altered fluorescence in response to local pH changes, can be used to measure intracellular pH. While microscopy is often used to make such measurements, it is relatively ...
    Purification of Rice Stripe Virus
    Authors:  Gang Lu, Min Yao, Yijun Zhou and Xiaorong Tao, date: 03/20/2020, view: 1421, Q&A: 0
    [Abstract] Although many spherical and rod-shaped plant virus purification protocols are now available, only a few protocols on filamentous plant virus purification have been published. Here, we report a protocol for large-scale purification of Rice stripe virus (RSV) from RSV-infected rice tissues. RSV virions with high infectivity were first precipitated ...



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