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Updated: Feb 14, 2026

The Plant Infection Test: Spray and Wound-Mediated Inoculation with the Plant Pathogen Magnaporthe Grisea
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Plant Responses to Pathogen Attack: Small RNAs in Focus.

Waqar Islam1, Ali Noman2,3, Muhammad Qasim4

  • 1College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China. waqarislam@m.fafu.edu.cn.

International Journal of Molecular Sciences
|February 9, 2018
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Summary

Small RNAs (sRNAs) are crucial plant defense elements against pathogens. This review highlights diverse sRNAs as key defenders, offering potential for disease resistance and food security.

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defense responsegenetic controlimmunitynon-coding RNAplant diseases

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Area of Science:

  • Plant biology
  • Molecular biology
  • Genetics

Background:

  • Small RNAs (sRNAs) regulate gene expression in eukaryotes, with specialized roles in plants.
  • Plant defense against microbes heavily involves sRNA silencing pathways.
  • Host sRNAs are essential components of plant immunity against pathogens.

Purpose of the Study:

  • To review recent advancements in sRNA-mediated plant defense against pathogen attacks.
  • To highlight the diverse roles of sRNAs as key defenders in plant systems.
  • To explore the potential of sRNAs in enhancing food security through disease management.

Main Methods:

  • Literature review of topical advancements and findings on sRNAs in plant-pathogen interactions.
  • Analysis of evidence supporting the role of sRNAs in plant immune responses.
  • Discussion of different sRNA pathways, including short interfering RNAs (siRNAs) and microRNAs (miRNAs).

Main Results:

  • sRNAs, including siRNAs and miRNAs, actively regulate plant immunity against pathogen-associated molecular patterns (PAMPs) and effectors.
  • sRNA-dependent immune systems are vital for plant protection during pathogen attacks.
  • Various sRNAs function as critical defenders within plant systems.

Conclusions:

  • sRNA-mediated plant defense is an established fact, crucial for plant survival.
  • Further research is needed to fully understand the regulation of many sRNAs.
  • Harnessing sRNAs offers a promising strategy for achieving food security by combating plant diseases.