Skip to main content
An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

NALT Concept Space
U.S. Department of Agriculture

NALT Full

Concept information

  1. Taxonomic Hierarchy
  2. Viruses and Viroids
  3. viroids

Preferred term

viroids

Type

  • Organism

Definition

  • Information A group of pathogens comprising the smallest known agents of infectious disease. They are unencapsulated and are capable of replicating autonomously in susceptible cells. Positively identified viroids composed of single-stranded RNA have been isolated from higher plants, but the existence of DNA viroids pathogenic to animals is suspected.

    Source: Medical Subject Headings

    Type: Concept definition

Broader concept

Related concepts

Has taxonomic rank

In other languages

URI

https://lod.nal.usda.gov/nalt/9408

Download this concept:

RDF/XML TURTLE JSON-LD Created 1/19/06, last modified 2/17/17