The Plant Pathology Journal 2003;19(6):274-279.
Published online December 31, 2003.
Two Newly Identifield Gymnosporangium Species, G. japonicum and G. cornutumi, in Korea
Hye Young Yun, Seung Kyu Lee, Kyung Joon Lee, Kyung Hee Kim
Abstract
Two Gymnosporangium species, G. japonicum and G. cornutum, causing cedar-apple rust, were newly identified in Korea, and a new aecial host for each fungus was found by artificial inoculation. Detailed descriptions of the species were made based on macroscopic features (symptoms and signs) and light and scanning electron microscopic observations of spores and peridial cells. G. japonicum from Juniperus chinensis var. horizontalis had Photinia villosa as its new aecial host. G. cornutum from J. rigida showed its aecial stage on Sorbus alnifolia.
Key Words: Cedar-apple rust, Gymnosporangium cornutum, Gymnosporangium japonicum, Photinia villosa, Sorbus alnifolia
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