The hop stunt viroid (abbreviated HSVd) is a
viroid
Viroids are small single-stranded, circular RNAs that are infectious pathogens. Unlike viruses, they have no protein coating. All known viroids are inhabitants of angiosperms (flowering plants), and most cause diseases, whose respective economi ...
species that infects the common
hop plant, citrus plants and grapevines, among others. It is a member of the
Pospiviroidae
The Pospiviroidae are a family of viroids, including the first viroid to be discovered, PSTVd. Their secondary structure is key to their biological activity. The classification of this family is based on differences in the conserved central re ...
family and the
Hostuviroid genus.
There are quite a few different sub-species of the hop stunt viroid.
Genome
The hop stunt viroid has a single stranded RNA genome; the genome is 297 nucleotides long.
Hop stunt viroids
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Australian grapevine viroid
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Citrus gummy bark viroid
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Grapevine yellow speckle viroid 1
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Grapevine yellow speckle viroid 2
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Dapple peach fruit disease viroid
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Citrus chachexia viroid
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Cucumber pale fruit viroid
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Dapple plum and peach fruit disease viroid
References
Viroids
Hop diseases
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