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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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Infectious diseases arise from intricate interactions between pathogens and their reservoirs. A reservoir of infection refers to the natural habitat where a pathogen lives, grows, and multiplies, serving as a continual source of infection. Reservoirs are broadly classified as either living or nonliving, and each plays a unique role in disease transmission, significantly influencing public health interventions and control strategies.Humans act as reservoirs for a wide array of pathogens,...
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Updated: May 23, 2026

Inoculation Strategies to Infect Plant Roots with Soil-Borne Microorganisms
08:16

Inoculation Strategies to Infect Plant Roots with Soil-Borne Microorganisms

Published on: March 1, 2022

Human enteric pathogen internalization by root uptake into food crops.

Kirsten A Hirneisen1, Manan Sharma, Kalmia E Kniel

  • 1Department of Animal and Food Sciences, University of Delaware, Newark, DE 19716, USA.

Foodborne Pathogens and Disease
|March 31, 2012
PubMed
Summary

Understanding how enteric pathogens contaminate produce through root uptake is crucial for food safety. Research shows various factors influence pathogen internalization, impacting preventative measures against foodborne illnesses.

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Published on: September 10, 2021

Area of Science:

  • Agricultural Science
  • Microbiology
  • Food Safety

Background:

  • Increasing outbreaks and illnesses linked to pre-harvest produce contamination by enteric pathogens.
  • Subsurface localization of pathogens on leafy greens hinders removal by washing and sanitizers.

Purpose of the Study:

  • To review the potential for root uptake and internalization of foodborne pathogens (bacterial and viral) into food crops.
  • To identify factors influencing pathogen internalization and hypothesize mechanisms involved.

Main Methods:

  • Literature review on experimental studies investigating pathogen uptake through plant roots.
  • Analysis of factors affecting internalization, including growth substrate, plant stage, pathogen characteristics, and plant cultivar.

Main Results:

  • Pathogen uptake and internalization via roots into food crops is a significant concern.
  • Internalization is influenced by growth substrate (soil vs. hydroponics), plant developmental stage, pathogen type, inoculum level, and plant species/cultivar.

Conclusions:

  • Understanding root uptake mechanisms is vital for developing effective pre- and post-harvest strategies.
  • Further research is needed to elucidate "active" versus "passive" internalization mechanisms of bacteria into plant roots.