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Related Concept Videos

Subviral Agents01:29

Subviral Agents

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Subviral agents are infectious entities that resemble viruses but lack one or more viral components, such as a capsid or essential replication machinery. These agents include viroids, prions, and satellites, each possessing distinct structural and functional characteristics that influence their mode of infection and replication.Viroids are the simplest subviral agents, consisting of circular, single-stranded RNA molecules without a protein coat. They exclusively infect plants, relying entirely...
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Related Experiment Video

Updated: Oct 15, 2025

Plant-Microbe Interaction: Transcriptional Response of Bacillus Mycoides to Potato Root Exudates
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Transcriptome Analysis of Potato Infected with the Necrotrophic Pathogen Alternaria solani.

Sophie M Brouwer1, Maja Brus-Szkalej1, Ganapathi V Saripella2

  • 1Department of Plant Protection Biology, Swedish University of Agricultural Sciences, P.O. Box 7070, SE-750 07 Uppsala, Sweden.

Plants (Basel, Switzerland)
|October 23, 2021
PubMed
Summary

Potato early blight, caused by Alternaria solani, threatens crop yields. This study reveals key potato defense genes and fungal virulence factors, offering new targets for sustainable disease control strategies.

Keywords:
RNAseqSolanum tuberosumearly blightnecrotrophplant-pathogen interaction

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Area of Science:

  • Plant Pathology
  • Molecular Biology
  • Genomics

Background:

  • Potato early blight, caused by Alternaria solani, leads to significant yield losses.
  • Fungicide resistance and a poor understanding of potato defenses hinder sustainable control.
  • Necrotrophic pathogens present unique challenges to plant immunity.

Purpose of the Study:

  • To analyze potato transcriptome responses to Alternaria solani infection from early to late stages.
  • To identify potato defense mechanisms and fungal virulence factors involved in early blight development.
  • To uncover potential targets for developing sustainable disease resistance strategies.

Main Methods:

  • Transcriptome analysis of potato-Alternaria solani interaction over 48 hours post-inoculation.
  • Monitoring of fungal gene expression related to pathogenicity.
  • Identification of differentially expressed genes in both host and pathogen.

Main Results:

  • Upregulation of potato genes involved in biotic stress tolerance and defense, including a Nudix hydrolase potentially involved in oxidative stress response.
  • Identification of Alternaria solani genes encoding putative pathogenicity factors, such as cell wall degrading enzymes.
  • Differential expression analysis revealed key candidate genes for host immunity and pathogen virulence.

Conclusions:

  • The study provides insights into potato's molecular responses to early blight infection.
  • Identified candidate genes offer potential targets for breeding resistant potato varieties or developing novel control strategies.
  • Understanding host-pathogen interactions is crucial for advancing sustainable agriculture.