Article
Avocado sunblotch disease: a persistent viroid infection in which variants are associated with differential symptoms.
The Journal of general virology - 1 Jul 1994
Semancik J S, Szychowski J A
Abstract excerpt
Variants of avocado sunblotch viroid (ASBVd) of between 247 and 250 nucleotides in length have been recovered from diseased avocado tissues. The sunblotch syndrome covers a complex pattern of disease symptoms which are associated with infection by variants of ASBVd. The viroid species are designated ASBVd-B, ASBVd-V and ASBVd-Sc from their association with bleached, variegated or symptomless carrier tissues...
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