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Sparking a sulfur war between plants and pathogens.

Wei Wang1, Jinbao Liu2, Bharat Mishra2

  • 1School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA 24061, USA.

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|August 26, 2022
PubMed
Summary

Sulfur (S) plays a dual role in plant immunity, with pathogens acquiring it from plants while plants can restrict S to defend against disease. Manipulating S-related genes offers new crop resistance strategies.

Keywords:
effectorsplant–pathogen interactionssulfur defense compoundssulfur-related susceptibilitytransporters

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Area of Science:

  • Plant Pathology
  • Biochemistry
  • Molecular Biology

Background:

  • Sulfur (S) is essential for plant life and involved in numerous biological processes.
  • Plant-pathogen interactions are complex, involving nutrient acquisition and host defense mechanisms.

Purpose of the Study:

  • To review mechanisms of sulfur acquisition by plant pathogens.
  • To highlight plant strategies for limiting sulfur availability during immune responses.
  • To explore the potential of manipulating sulfur-related host genes for crop resistance.

Main Methods:

  • Literature review of existing research on sulfur metabolism in plants and pathogens.
  • Analysis of recent findings on plant immune responses involving sulfur.
  • Discussion of genetic manipulation of host disease-susceptibility genes.

Main Results:

  • Pathogens utilize various strategies to scavenge sulfur from host plants.
  • Plants can actively limit sulfur availability as an immune defense.
  • Specific host genes influencing sulfur metabolism are linked to disease susceptibility.

Conclusions:

  • Sulfur's role in plant-pathogen interactions is multifaceted, impacting both host and pathogen.
  • Understanding these interactions can lead to novel strategies for enhancing crop disease resistance.
  • Future research should employ systems biology to fully elucidate sulfur's role in plant immunity.