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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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Aquatic virus diversity accessed through omic techniques: a route map to function.

Michael J Allen1, William H Wilson

  • 1Plymouth Marine Laboratory, Plymouth, UK.

Current Opinion in Microbiology
|June 17, 2008
PubMed
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This summary is machine-generated.

Viruses are essential to microbial ecology, influencing gene transfer and nutrient cycling beyond simple infection. Advanced

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Last Updated: Jul 4, 2026

Unraveling the Unseen Players in the Ocean - A Field Guide to Water Chemistry and Marine Microbiology
10:43

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Published on: November 5, 2014

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09:40

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Combining Analysis of DNA in a Crude Virion Extraction with the Analysis of RNA from Infected Leaves to Discover New Virus Genomes
08:56

Combining Analysis of DNA in a Crude Virion Extraction with the Analysis of RNA from Infected Leaves to Discover New Virus Genomes

Published on: July 27, 2018

Area of Science:

  • Virology
  • Microbial Ecology
  • Genomics

Background:

  • Viruses, despite their simplicity, are critical regulators of planetary processes and microbial ecology.
  • Their roles extend beyond the traditional infect-replicate-kill cycle, impacting gene transfer and microbial loop dynamics.
  • Vast viral abundance and diversity hint at significant, yet often uncharacterized, ecological functions.

Purpose of the Study:

  • To explore the ecological significance of viruses using novel 'omic' approaches.
  • To gain insights into virus diversity and inferred functions, particularly in aquatic environments.
  • To understand the application of molecular techniques in studying virus communities.

Main Methods:

  • Application of advanced 'omic' techniques, including metagenomic sequencing, microarrays, and proteomic analysis.
  • Development of molecular markers for studying virus communities.
  • Shift towards culture-independent approaches for analyzing viral diversity and function.

Main Results:

  • New 'omic' approaches provide unprecedented insights into virus diversity and inferred functions.
  • Challenges remain in understanding infection strategies due to a lack of database matches for viral sequences.
  • Molecular tools are crucial for determining the function of previously unknown viral genes.

Conclusions:

  • Viral genomics, combined with traditional methods, offers a powerful way to understand viral ecological roles.
  • Sequence information is a valuable starting point for hypothesis generation in virus ecology.
  • The field is entering an exciting era for exploring the ecological functions of viruses on a large scale.