Plant Science


    Protocols in Current Issue
    Bacterial Infection and Hypersensitive Response Assays in Arabidopsis-Pseudomonas syringae Pathosystem
    Authors:  Minhang Yuan and Xiu-Fang Xin, date: 12/20/2021, view: 1656, Q&A: 0

    Arabidopsis thaliana-Pseudomonas syringae pathosystem has been used as an important model system for studying plant-microbe interactions, leading to many milestones and breakthroughs in the understanding of plant immune system and pathogenesis mechanisms. Bacterial infection and plant disease assessment are key experiments in the studies of

    A Spectrofluorophotometrical Method Based on Fura-2-AM Probe to Determine Cytosolic Ca2+ Level in Pseudomonas syringae Complex Bacterial Cells

    Calcium signaling is an emerging mechanism by which bacteria respond to environmental cues. To measure the intracellular free-calcium concentration in bacterial cells, [Ca2+]i, a simple spectrofluorometric method based on the chemical probe Fura 2-acetoxy methyl ester (Fura 2-AM) is here presented using Pseudomonad bacterial cells. This is an

    An Efficient Inoculation Technique to Assess the Pathogenicity of Pantoea Species Associated to Bacterial Blight of Rice
    Authors:  Kossi Kini, Raoul Agnimonhan, Issa Wonni and Drissa Silue, date: 09/05/2020, view: 3305, Q&A: 0
    [Abstract] Bacteria blight diseases of rice due to several genera of pathogenic bacteria are one of the major constraints worldwide for rice production. The disease can be best managed through host plant resistance sources. For most of these bacteria such as Xanthomonas oryzae pv. oryzae, X. oryzae pv. oryzicola, ...
    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 ...
    In vitro Assessment of Pathogen Effector Binding to Host Proteins by Surface Plasmon Resonance
    [Abstract] The mechanisms of virulence and immunity are often governed by molecular interactions between pathogens and host proteins. The study of these interactions has major implications on understanding virulence activities, and how the host immune system recognizes the presence of pathogens to initiate an immune response. Frequently, the association ...
    Maintenance and Quantitative Phenotyping of the Oomycete-plant Model Pathosystem Hyaloperonospora arabidopsidisArabidopsis
    Authors:  Fang-Yu Hwu and Martin Parniske, date: 06/20/2020, view: 3003, Q&A: 0
    [Abstract] The interaction between the host plant Arabidopsis thaliana (Arabidopsis) and the oomycete Hyaloperonospora arabidopsidis (Hpa) is an established model system for the study of an obligate biotrophic downy mildew interaction. The evaluation of the developmental success of Hpa is often based on the quantification ...
    MAMP-triggered Medium Alkalinization of Plant Cell Cultures
    [Abstract] Plants recognize a wide variety of microbial molecules to detect and respond to potential invaders. Recognition of Microbe-Associated Molecular Patterns (MAMPs) by cell surface receptors initiate a cascade of biochemical responses that include, among others, ion fluxes across the plasma membrane. A consequence of such event is a decrease in the ...
    Competition Assays to Quantify the Effect of Biocontrol Yeasts against Plant Pathogenic Fungi on Fruits
    Authors:  Electine Magoye, Melanie Pfister, Maja Hilber-Bodmer and Florian M. Freimoser, date: 02/05/2020, view: 3538, Q&A: 0
    [Abstract] Yeasts such as Aureobasidium pullulans are unicellular fungi that occur in all environments and play important roles in biotechnology, medicine, food and beverage production, research, and agriculture. In the latter, yeasts are explored as biocontrol agents for the control of plant pathogenic fungi (e.g., Botrytis cinerea, ...
    Localizing Genome Segments and Protein Products of a Multipartite Virus in Host Plant Cells
    Authors:  Marie-Stephanie Vernerey, Elodie Pirolles, Stephane Blanc and Anne Sicard, date: 12/05/2019, view: 2941, Q&A: 0
    [Abstract] A founding paradigm in virology is that the spatial unit of the viral replication cycle is an individual cell. This concept applied to multipartite viruses–which have a genome composed of two or more nucleic acid segments, each individually encapsulated–implies that all segments constituting a viral genome need to coinfect the same host cell for ...
    Method for Assessing Virulence of Colletotrichum higginsianum on Arabidopsis thaliana Leaves Using Automated Lesion Area Detection and Measurement
    Authors:  Ayako Tsushima, Pamela Gan and Ken Shirasu, date: 11/20/2019, view: 4760, Q&A: 0
    [Abstract] The plant pathogenic fungus, Colletotrichum higginsianum is widely used to understand infection mechanisms, as it infects the model plant Arabidopsis thaliana. To determine the virulence of C. higginsianum, several methods have been developed, such as disease reaction scoring, lesion measurement, entry rate assays, and ...

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