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Related Concept Videos

Microbe-Plant Interactions01:09

Microbe-Plant Interactions

Microbe-plant interactions represent a dynamic spectrum of associations shaped by intricate chemical signaling. These interactions can be neutral, beneficial, or detrimental, and profoundly influence plant physiology, growth, and ecosystem function. The plant microbiome, comprising bacteria, fungi, archaea, protists, and viruses, plays a pivotal role in mediating these effects through surface colonization, internal colonization, or systemic symbiosis.Mutualistic associations, particularly with...
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Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.

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Related Experiment Video

Updated: Jun 25, 2026

In vivo and In vitro Infection of Potato Roots with Plant Parasitic Nematodes for the Assessment of Induced Structural Changes
10:35

In vivo and In vitro Infection of Potato Roots with Plant Parasitic Nematodes for the Assessment of Induced Structural Changes

Published on: February 28, 2025

Plant pathogen population dynamics in potato fields.

G D Morgan, W R Stevenson, A E Macguidwin

    Journal of Nematology
    |March 7, 2009
    PubMed
    Summary
    This summary is machine-generated.

    Modern technologies help track potato pathogens like Alternaria solani. Site-specific management and nitrogen application can reduce disease severity and pathogen impact.

    Keywords:
    Alternaria solaniPratylenchus penetransVerticillium dahliaeearly blightearly dyinggeostatisticspopulation dynamicspotatoroot-lesion nematodespatial distribution

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    Agroinfiltration and PVX Agroinfection in Potato and Nicotiana benthamiana

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    Area of Science:

    • Agricultural science
    • Plant pathology
    • Ecology

    Background:

    • Geographic Information Systems (GIS), Global Positioning Systems (GPS), remote sensing, and geostatistics offer advanced tools for landscape-level pest ecological studies.
    • Understanding plant pathogen population dynamics is crucial for developing effective management strategies, including site-specific management and cultural practices to minimize pathogen introduction and impact.

    Purpose of the Study:

    • To investigate the population dynamics of Alternaria solani, Verticillium dahliae, and Pratylenchus penetrans in commercial potato fields.
    • To utilize spatial statistics and interpolation methods for identifying the spatial distribution and population dynamics of these pathogens.

    Main Methods:

    • A georeferenced 0.5-ha diamond grid-sampling scheme was employed in commercial potato fields.
    • Disease severity ratings were recorded weekly, and Pratylenchus penetrans densities were quantified four weeks post-emergence.
    • Spatial statistics and interpolation techniques were applied to analyze pathogen distribution and dynamics.

    Main Results:

    • Interpolated maps and aerial imagery revealed the intra-season progression of Alternaria solani as the potato crop matured.
    • Late-season nitrogen application was found to reduce Alternaria solani severity.
    • The spatial distributions of Verticillium dahliae and Pratylenchus penetrans were found to be spatially correlated.

    Conclusions:

    • Advanced geospatial technologies are effective in monitoring plant pathogen spread and dynamics in agricultural landscapes.
    • Site-specific management informed by spatial analysis and targeted interventions like late-season nitrogen application can mitigate pathogen impact.
    • Understanding spatial correlations between pathogens can inform integrated pest management strategies for potatoes.