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Detection of a Viroid Associated with Apple Fruit Crinkle Disease.

1993; Phytopathological Society of Japan; Volume: 59; Issue: 5 Linguagem: Inglês

10.3186/jjphytopath.59.520

1882-0484

Tsutae Ito, Seiji Kanematsu, H. Koganezawa, Tsuneo Tsuchizaki, Kouji Yoshida,

Plant Disease Resistance and Genetics

Apple fruit crinkle (AFC) is a graft-transmissible fruit disease of apple, so far found only in Japan. A viroid-like RNA was detected in association with this disease. Its molecular size was larger than that of apple scar skin viroid (ASSVd) and it did not hybridize with ASSVd-cDNA. In addition, it was transmitted to apple seedlings when they were inoculated by razor-slash method with its electrophoretically purified preparation. These results suggest that this viroid-like RNA is a novel apple viroid and that AFC is a new viroid disease distinct from apple scar skin. We propose to call this viroid apple fruit crinkle associated viroid.