Microbiology

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    Protocols in Current Issue
    A Quick Method for Screening Biocontrol Efficacy of Bacterial Isolates against Bacterial Wilt Pathogen Ralstonia solanacearum in Tomato
    Authors:  Heena Agarwal, Bhaskar Dowarah and Niraj Agarwala, date: 11/20/2020, view: 79, Q&A: 0
    [Abstract]

    Ralstonia solanacearum is a bacterial phytopathogen able to cause bacterial wilt disease in more than 200 plant species. Plant disease biocontrol strategies are used for controlling this disease and tomato is used as a model plant to conduct R. solanacearum associated studies. Conventional screening methods such as seed bacterization, soil

    ...
    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: 309, 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 ...
    RNA Extraction from Ears and Draining Lymph Nodes of Mice Infected with Leishmania amazonensis
    Authors:  Emilie Giraud and Evie Melanitou, date: 06/05/2020, view: 1087, Q&A: 0
    [Abstract] Parasites of the genus Leishmania infect the mammalian hosts, including mice and humans and cause cutaneous or visceral leishmaniasis depending upon the parasite species transmitted by the vector sandfly. Leishmania amazonensis is one of the Leishmania species responsible for the cutaneous form of the disease. We have ...
    A Triple-challenge Mouse Model of Allergic Airway Disease, Primary Influenza Infection, and Secondary Bacterial Infection
    Authors:  Sean Roberts, Clare M Williams, Sreeja Roy and Yoichi Furuya, date: 04/20/2020, view: 1035, Q&A: 0
    [Abstract] Asthma is a global problem that affects millions of individuals. An increased risk of respiratory viral and bacterial infections is one of the complications of asthma. We recently reported that mice with ovalbumin-induced allergic airway disease (AAD) are protected against influenza-Streptococcus pneumoniae co-infection. Here, we describe ...
    Preparation of Red Palm Weevil Rhynchophorus Ferrugineus (Olivier) (Coleoptera: Dryophthoridae) Germ-free Larvae for Host-gut Microbes Interaction Studies
    Authors:  Abrar Muhammad, Prosper Habineza, Youming Hou and Zhanghong Shi, date: 12/20/2019, view: 1873, Q&A: 0
    [Abstract] Red palm weevil (RPW), Rhynchophorus ferrugineus Olivier, is a devastating pest of palm trees worldwide. RPW gut is colonized by diverse bacterial species which profoundly influence host development and nutritional metabolism. However, the molecular mechanisms behind the interactions between RPW and its gut microbiota remain mostly ...
    Amplex Red Assay for Measuring Hydrogen Peroxide Production from Caenorhabditis elegans
    Authors:  Ozgur Karakuzu, Melissa R. Cruz, Yi Liu and Danielle A. Garsin, date: 11/05/2019, view: 3906, Q&A: 0
    [Abstract] Reagents such as Amplex® Red have been developed for detecting hydrogen peroxide (H2O2) and are used to measure the release of H2O2 from biological samples such as mammalian leukocytes undergoing the oxidative burst. Caenorhabditis elegans is commonly used as a model host in the study ...
    Visualizing Hypoxia in a Murine Model of Candida albicans Infection Using in vivo Biofluorencence
    Authors:  José Pedro Lopes and Constantin F. Urban, date: 08/05/2019, view: 1890, Q&A: 0
    [Abstract] Candida albicans is a leading human fungal pathogen that uses several metabolic adaptations to escape immune cells and causes systemic disease. Here, we describe a protocol for measuring one of these adaptations, the ability to thrive in hypoxic niches. Hypoxia was generated after successful subdermal infection with C. albicans ...
    Tracking Root Interactions System (TRIS) Experiment and Quality Control
    Authors:  Hassan Massalha, Elisa Korenblum, Orr H. Shapiro and Asaph Aharoni, date: 04/20/2019, view: 3365, Q&A: 0
    [Abstract] Soil organisms are diverse taxonomically and functionally. This ecosystem experiences highly complex networks of interactions, but may also present functionally independent entities. Plant roots, a metabolically active hotspot in the soil, take an essential part in shaping the rhizosphere. Tracking the dynamics of root-microbe interactions at high ...
    Use of Gas Chromatography to Quantify Short Chain Fatty Acids in the Serum, Colonic Luminal Content and Feces of Mice
    [Abstract] Short-Chain Fatty Acids (SCFAs) are a product of the fermentation of resistant starches and dietary fibers by the gut microbiota. The most important SCFA are acetate (C2), propionate (C3) and butyrate (C4). These metabolites are formed and absorbed in the colon and then transported through the hepatic vein to the liver. SCFAs are more concentrated ...
    Quantification of the Composition Dynamics of a Maize Root-associated Simplified Bacterial Community and Evaluation of Its Biological Control Effect
    Authors:  Ben Niu and Roberto Kolter, date: 06/20/2018, view: 4941, Q&A: 0
    [Abstract] Besides analyzing the composition and dynamics of microbial communities, plant microbiome research aims to understanding the mechanism of plant microbiota assembly and their biological functions. Here, we describe procedures to investigate the role of bacterial interspecies interactions in root microbiome assembly and the beneficial effects of the ...



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