Apple dimple fruit apscaviroid is a new and distinct species
The disease called apple dimple fruit was first observed in some commercial trees of cultivar Starking Delicious in Campania, Italy. Symptoms were characterized by malformed fruits with crater-shaped green spots on the red skin. Small circular RNA was isolated from symptomatic fruits and the pathogen was tentatively called Apple dimple fruit viroid. It has now been confirmed that the disease is indeed caused by a new and distinct viroid species belonging to the genus Apscaviroid.
Di Serio, F.; Malfitano, M.; Alioto, D.; Ragozzino, A.; Desvignes, J.C.; Flores, R. (2001) Apple dimple fruit viroid: fulfilment of Koch’s Postulates and symptoms characteristics.
Plant Disease, 85(2), 179-182.