Microbiology

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    Protocols in Current Issue
    Murine acute pneumonia model
    date: 11/05/2020, view: , Q&A: 0
    [Abstract]
    Acidified Blue Ink-staining Procedure for the Observation of Fungal Structures Inside Roots of Two Disparate Plant Lineages
    Authors:  Jill Kowal, Elena Arrigoni and Sophie Lane, date: 10/20/2020, view: 37, Q&A: 0
    [Abstract] Identifying microscopic mycorrhizal fungal structures in roots, i.e., hyphae, vesicles and arbuscules, requires root staining procedures that are often time consuming and involves chemicals known to present health risks from exposure. By modifying established protocols, our root staining method stains roots using a safe ink- and ...
    TetR Regulated in vivo Repression Technology to Identify Conditional Gene Silencing in Genetically Engineerable Bacteria Using Vibrio cholerae Murine Infections as Model System
    Authors:  Franz G. Zingl, Fabian Mitterer, Himadri B. Thapa and Stefan Schild, date: 10/05/2020, view: 181, Q&A: 0
    [Abstract] Investigation of bacterial gene regulation upon environmental changes is still a challenging task. For example, Vibrio cholerae, a pathogen of the human gastrointestinal tract, faces diverse transient conditions in different compartments upon oral ingestion. Genetic reporter systems have been demonstrated to be extremely powerful tools to ...
    Determination of Intracellular Ca2+ Concentration in the Human Pathogens Trypanosomatids Leishmania mexicana and Trypanosoma cruzi by the Use of the Fluorescent Ca2+ Indicator Fura-2
    Authors:  Andre Rey-Cibati, Mariana Valladares-Delgado and Gustavo Benaim, date: 09/20/2020, view: 270, Q&A: 0
    [Abstract] Ca2+ is an essential signaling messenger in all eukariotic cells, playing a pivotal role in many cellular functions as cell growth control (differentiation, fertilization and apoptosis), secretion, gene expression, enzyme regulation, among many others. This basic premise includes trypanosomatids as Trypanosoma cruzi and various ...
    An in vitro DNA Sensor-based Assay to Measure Receptor-specific Adhesion Forces of Eukaryotic Cells and Pathogens
    Authors:  Maurizio Wack, Tina Wiegand, Friedrich Frischknecht and E. Ada Cavalcanti-Adam, date: 09/05/2020, view: 891, Q&A: 0
    [Abstract] Motility of eukaryotic cells or pathogens within tissues is mediated by the turnover of specific interactions with other cells or with the extracellular matrix. Biophysical characterization of these ligand-receptor adhesions helps to unravel the molecular mechanisms driving migration. Traction force microscopy or optical tweezers are typically ...
    Candida albicans Agar Invasion Assays
    Authors:  Shamoon Naseem, Lois M. Douglas and James B. Konopka, date: 08/20/2020, view: 717, Q&A: 0
    [Abstract] The ability of the human fungal pathogen Candida albicans to disseminate into tissues is promoted by a switch from budding to invasive hyphal growth. This morphological transition is stimulated by multiple environmental factors that can vary at different sites of infection. To identify genes that promote invasive growth, C. albicans ...
    Generation and in Planta Functional Analysis of Potato Virus Y mutants
    [Abstract] Potato virus Y (PVY), the type member of the genus Potyvirus (family Potyviridae), is the most widespread virus affecting potato and is included in the top five most economically detrimental plant viruses. Recently, the structure of the PVY virion has been determined by cryo-electron microscopy, which has opened the doors to ...
    Intestinal Enteroid Culture for Human Astroviruses
    Authors:  Irene A. Owusu, Carmen Mirabelli and Abimbola O. Kolawole, date: 07/20/2020, view: 512, Q&A: 0
    [Abstract] Human astroviruses (HAstV) are non-enveloped, positive-sense single stranded RNA viruses that typically cause gastroenteritis in children, the elderly and among immunocompromised individuals. Some HAstV species have also been implicated in neurological diseases. It is important to study these viruses to understand the pathogenesis and develop ...



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