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Potato Virus X-Based microRNA Silencing (VbMS) In Potato.
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Potato leafroll virus: a classic pathogen shows some new tricks.

Michael Taliansky1, Mike A Mayo, Hugh Barker

  • 1Scottish Crop Research Institute, Invergowrie, Dundee, DD2 5DA, UK.

Molecular Plant Pathology
|June 24, 2010
PubMed
Summary

Potato leafroll virus (PLRV) is a common potato pathogen transmitted by aphids. This review highlights recent molecular studies on PLRV, focusing on its phloem confinement, movement, and gene silencing suppression.

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Area of Science:

  • Plant virology
  • Molecular biology
  • Entomology

Background:

  • Potato leafroll virus (PLRV) is the type species of the genus Polerovirus, family Luteoviridae.
  • PLRV particles are isometric (25 nm) with a single-stranded RNA genome and specific proteins.
  • It has a limited host range, primarily affecting potato and occasionally tomato.

Purpose of the Study:

  • To review the taxonomy, physical, and biological properties of PLRV.
  • To highlight recent molecular studies on PLRV's unique biological features.
  • To provide background and point towards new developments in PLRV research.

Main Methods:

  • Literature review of existing studies on PLRV.
  • Analysis of PLRV's physical and biological characteristics.
  • Focus on molecular investigations into PLRV's phloem confinement, movement, and gene silencing suppression.

Main Results:

  • PLRV is persistently transmitted by aphids and multiplies in phloem tissue.
  • Symptoms include leafrolling and stunting in infected potato cultivars.
  • Recent research focuses on PLRV's phloem confinement, plant movement, gene silencing suppression, and particle structure.

Conclusions:

  • PLRV exhibits characteristics typical of the Luteoviridae family.
  • Ongoing molecular research is uncovering novel aspects of PLRV biology.
  • Understanding these features is crucial for managing PLRV in potato crops.