ICTV Virus Taxonomy Profile: Closteroviridae

Area of Science:

• * Virology
• * Plant Pathology
• * Molecular Biology

Background:

• * Viruses in the family *Closteroviridae* possess mono-, bi-, or tripartite positive-sense RNA genomes.
• * These viruses form non-enveloped, filamentous particles, measuring 650-2200 nm in length and 12 nm in diameter.
• * *Closteroviridae* primarily infect dicotyledonous plants, with a significant impact on various fruit crops.

Purpose of the Study:

• * To provide a comprehensive summary of the family *Closteroviridae*.
• * To consolidate information from the International Committee on Taxonomy of Viruses (ICTV) Report.
• * To offer an accessible overview of *Closteroviridae* virus characteristics and host range.

Main Methods:

• * Compilation and summarization of data from the official ICTV Report on the family *Closteroviridae*.
• * Review of established taxonomic and morphological characteristics of the viruses.
• * Analysis of host range, focusing on affected plant types.

Main Results:

• * Detailed description of the genomic structure (mono-, bi-, or tripartite positive-sense RNA, 13-19 kb).
• * Characterization of virion morphology (non-enveloped, filamentous, 650-2200 nm length, 12 nm diameter).
• * Identification of primary hosts, predominantly dicotyledonous plants, including numerous fruit crops.

Conclusions:

• * *Closteroviridae* represents a significant viral family affecting plant health, particularly in agriculture.
• * The characterized features provide a basis for understanding their biology and impact.
• * This summary serves as a key resource for researchers and diagnosticians working with these plant viruses.