[논문]Identification and Pathogenicity of Neophysopella vitis Causing Rust Disease on Meliosma myriantha in Korea

Dong Hwan Na; Jae Sung Lee; Young-Joon Choi; Ji-Hyun Park; Hyeon-Dong Shin

doi:10.5423/rpd.2023.29.3.299

Identification and Pathogenicity of Neophysopella vitis Causing Rust Disease on Meliosma myriantha in Korea 원문보기

Research in plant disease = 식물병연구, v.29 no.3, 2023년, pp.299 - 303

Dong Hwan Na (Department of Biological Science, Kunsan National University) , Jae Sung Lee (Department of Biological Science, Kunsan National University) , Young-Joon Choi (Department of Biological Science, Kunsan National University) , Ji-Hyun Park (Department of Forestry, Environment, and Systems, Kookmin University) , Hyeon-Dong Shin (Division of Environmental Science and Ecological Engineering, College of Life Sciences and Biotechnology, Korea University)

Abstract ▼ AI-Helper

Rust symptoms on Meliosma myriantha trees have been noticed during disease surveys in Korea since 2010, with a high disease incidence frequently surpassing 90%. The causal fungus of the rust disease was identified as Neophysopella vitis based on the morphological investigation and molecular sequence analysis of the internal transcribed spacer (ITS) and large subunit (LSU) rDNA regions. This is the first report of rust disease caused by N. vitis on M. myriantha in Korea. A pathogenicity assay proved that M. myriantha serves as the aecial host of N. vitis as spermogonia and aeciospores were produced, which can infect the two uredinial hosts, Boston ivy (Parthenocissus tricuspidata) and Virginia creeper (Parthenocissus quinquefolia).

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그림 Fig. 1. Rust disease caused by Neophysopella vitis on Meliosma myriantha and its pathogenicity test on Boston ivy (Parthenocissus tricuspidata) and Virginia creeper (Parthenocissus quinquefolia). (A) Rust symptoms on the upper leaf surface. (B) Aecia on the lower surface of M. myriantha. (C) Brown spots at the later disease stage on the lower leaf surface of M. myriantha. (D) Spermogonia on the upper leaf of M. myriantha. (E) Aecia on the lower leaf of M. myriantha. (F) Aeciospores. (G-I) Uredinia formed by artificial inoculation of N. vitis aeciospores harvested from Meliosma myriantha onto Boston ivy (G) and Virginia creeper (H, the upper leaf surface; I, the corresponding lower leaf surface). The arrow in (H) means the rut spots on the upper leaf surface. Scale bars=500 μm (D, E), 10 μm (F).
그림 Fig. 2. Neophysopella vitis on Meliosma myriantha, observed under a scanning electron microscope. (A) Spermogonium. (B) Aecium. (C) Aeciospores. (D) Wall surface of an aeciospore. Scale bars=15 μm (A), 50 μm (B), 5 μm (C), 1 μm (D).
표 Table 1. List of the herbarium specimens of rust-infected Meliosma myriantha
그림 Fig. 3. Maximum-likelihood tree of Neophysopella species inferred from a concatenated alignment of internal transcribed spacer and large subunit rDNA sequences. The numbers above the branches represent bootstrap values over 70%. The green box represents Neophysopella vitis. The rust specimens sequenced in the present study are shown in bold.

참고문헌 (12)

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Identification and Pathogenicity of Neophysopella vitis Causing Rust Disease on Meliosma myriantha in Korea 원문보기

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Identification and Pathogenicity of Neophysopella vitis Causing Rust Disease on Meliosma myriantha in Korea 원문보기

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