| 단보 : Erysiphe abeliicola에 의한 꽃댕강나무 흰가루병 발생 |
|
조성은 ( Sung Eun Cho ) , 박지현 ( Ji Hyun Park ) , 이승규 ( Seung Kyu Lee ) , 이상현 ( Sang Hyun Lee ) , 신현동 ( Hyeon Dong Shin ) |
| |
| Occurrence of Powdery Mildew Caused by Erysiphe abeliicola on Glossy Abelia in Korea |
|
Sung-Eun Cho, Ji-Hyun Park, Seung-Kyu Lee1, Sang-Hyun Lee1 and Hyeon-Dong Shin* |
Division of Environmental Science and Ecological Engineering, Korea University, Seoul 136-701, Korea
1Division of Forest Diseases and Insect Pests, Korea Forest Research Institute, Seoul 130-712, Korea |
|
Received: March 01, 2012 Revised: May 16, 2012 Accepted: May 17, 2012 |
| Abstract |
|
In November 2009, a powdery mildew on glossy abelia (Abelia x grandiflora) was found in Seogwipo, Jeju Island, Korea. Further survey in the southern part of Korea, e.g., Jeju, Busan, and Tongyeong confirmed occurrence of the disease. White colonies were present on leaves, young stems, and flowers, detracting from their beauty in landscape plantings. Severely infected lesions were discolored to red-purplish. Based on the morphological characteristics and analysis of rDNA, the fungus associated with the symptoms was identified as Erysiphe abeliicola U. Braun & S. Takam. This work provides the morphological feature of its anamorph for the first time, which is characterized by having multi-lobed hyphal appressoria and short foot-cells of conidiophores. Morphological characteristics of mature chasmothecia were consistent with the previous Japanese record of this species. The sequence of internal transcribed spacer region of ribosomal DNA obtained from a Korean sample showed that this species places in the section Microsphaera of the genus Erysiphe in phylogenetic position, corresponding with the classical taxonomy. This is the first report of E. abeliicola and its host plant in Korea. The host plant A. x grandiflora is newly listed in the host range of E. abeliicola. |
| Key Words:
Abelia x grandiflora, Anamorph, Erysiphe abeliicola, Glossy Abelia |
|
PDF Links
Download Citation
