Chrysomyxa rhododendri에 의한 산철쭉(Rododendron yedoense) 녹병 |
도윤정, 김형무, 이귀재, 이왕휴, 고정애 |
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Rust of Korean Azalea (Rododendron yedoense) Caused by Chrysomyxa rhododendri |
Yun Jeong Do, Hyung Moo Kim, Kui Jae Lee, Wang Hyu Lee, Jeong Ae Ko |
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Abstract |
Rust disease on Korean Azalea (Rododendron yedoense) was occurred in Jeonju, Jeonbuk province of Korea. The typical symtoms of the disease appeared first as small yellowish spots on leaves. Uredinia were observed at hypophyllous of the leaves, yellow or dark yellow in color and globoid in shape with the size of 0.27~0.46×0.31~0.61 mm. Urediniospores were also observed in the leaves, yellow in color with globoid or ovoid in shape with the size of 17.1~29.2×12.8~18.2 μm. Surface characterization of the spores revealed that these spores have papilla-like projections, which were made of 2~3 annulation (SA; small annulate). Based on these morphological characterizations the causative fungus was identified as Chrysomyxa rhododendri. |
Key Words:
Chrysomyxa rhododendri, Korean Azalea, Rust |
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