Sclerotinia Rot of Fatsia japonica Caused by Sclerotinia sclerotiorum

Kwon, Jin Hyeuk

Research in Plant Disease 2006;12(2):122-124.
Published online August 30, 2006.

Sclerotinia sclerotiorum에 의한 팔손이 균핵병

권진혁

Sclerotinia Rot of Fatsia japonica Caused by Sclerotinia sclerotiorum

Jin Hyeuk Kwon

Abstract

Sclerotinia rot was occurred on the leaf and stem of Fatsia japonica in Geoje city, Gyeongnam province in Korea from 2004 to 2005. The typical symptom of the disease was water-soaked infected leaves and stems. The colony of the isolated fungus was white to faintly gray in color. Apothecia were cup-shaped with numerous asci and 0.8~1.3 cm in size. Asci were cylindrical in shape and 70~220 × 4~18 μm in size. Ascospores were aseptate, hyaline, ellipsoid in shape, and 6~12 × 4~6 μm in size. Sclerotia formed on the plants and PDA medium were globose to cylindrical or irregular in shape, black in color. The optimum temperature for mycelial growth was 25oC. This is the first report on the Sclerotinia rot of Fatsia japonica caused by Sclerotinia sclerotiorum in Korea.

Key Words: Fatsia japonica, Sclerotinia rot, Sclerotinia sclerotiorum