Search on: VIROIDS 
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Descriptor English:   Viroids 
Descriptor Spanish:   Viroides 
Descriptor Portuguese:   Viroides 
Synonyms English:   Viroid  
Tree Number:   B04.956
Definition English:   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. 
Indexing Annotation English:   "smallest known agents of infect dis"; read MeSH definition
History Note English:   81 
Allowable Qualifiers English:  
CH chemistry CL classification
DE drug effects EN enzymology
GE genetics GD growth & development
IM immunology IP isolation & purification
ME metabolism PY pathogenicity
PH physiology RE radiation effects
UL ultrastructure  
Record Number:   15174 
Unique Identifier:   D014772 

Occurrence in VHL: