Annual Review of Phytopathology (2019) 57, 63-90

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Cindy E. Morris and Benoît Moury (2019)
Revisiting the concept of host range of plant pathogens
Annual Review of Phytopathology 57, 63-90
Abstract: Strategies to manage plant disease—from use of resistant varieties to crop rotation, elimination of reservoirs, landscape planning, surveillance, quarantine, risk modeling, and anticipation of disease emergences—all rely on knowledge of pathogen host range. However, awareness of the multitude of factors that influence the outcome of plant–microorganism interactions, the spatial and temporal dynamics of these factors, and the diversity of any given pathogen makes it increasingly challenging to define simple, all-purpose rules to circumscribe the host range of a pathogen. For bacteria, fungi, oomycetes, and viruses, we illustrate that host range is often an overlapping continuum—more so than the separation of discrete pathotypes—and that host jumps are common. By setting the mechanisms of plant–pathogen interactions into the scales of contemporary land use and Earth history, we propose a framework to assess the frontiers of host range for practical applications and research on pathogen evolution.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
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Database assignments for author(s): Cindy E. Morris, Benoît Moury

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution
resistance/tolerance/defence of host


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Beneficial Pest/Disease/Weed Crop/Product Country Quarant.