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Susceptibility Genes to Plant Viruses
1Nebraska Center for Virology, Department of Plant Pathology, University of Nebraska-Lincoln, Lincoln, NE 68503, USA. hgarciaruiz2@unl.edu.
Viruses
|September 12, 2018
Summary
Plant viruses rely on host factors for replication and spread, but plants possess defense mechanisms. Identifying these proviral host factors is key to engineering plant virus resistance.
Area of Science:
- Plant pathology
- Molecular biology
- Virology
Background:
- Plant viruses exploit host cellular factors for replication and movement.
- Plants employ innate immunity, autophagy, and gene silencing against viral infections.
- Viruses must overcome or suppress these plant defense mechanisms.
Purpose of the Study:
- To review advances in identifying and characterizing host factors that influence plant virus susceptibility.
- To highlight the role of proviral factors in the virus infection cycle.
Main Methods:
- Literature review of current research on host-virus interactions.
- Analysis of identified host factors across the viral infection cycle.
Main Results:
- Host factors can possess either antiviral or proviral activities.
- Proviral factors are essential for various stages: viral RNA translation, replication complex formation, protein accumulation, virus movement, and virion assembly.
- Host factors influencing susceptibility have been identified for all stages of the virus infection cycle.
Conclusions:
- Host factors are critical determinants of plant virus susceptibility.
- Targeting proviral host factors offers a potential strategy for engineering virus resistance in plants through gene editing.
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