First Report of Leaf Spot Caused by Corynespora cassiicola on Ageratina altissima in South Korea

IF 1.2 4区农林科学 Q3 PLANT SCIENCES

Journal of Phytopathology Pub Date : 2026-06-21 DOI:10.1111/jph.70345

Jin-Woo Park, Kyoung-Mo Koo, Min-Jun Ko, Hyeon-Dong Shin, Ji-Hyun Park

引用次数: 0

Abstract

Ageratina altissima is an ecosystem-disturbing invasive plant widely distributed in modified habitats across South Korea. In October 2025, leaf spot disease was observed on A. altissima in Bucheon and Guri, South Korea. The causal agent was identified as Corynespora cassiicola based on morphological characterization and a phylogenetic analysis of the ITS and LSU regions of the rDNA. The artificial inoculation of healthy A. altissima leaves resulted in symptom development, and the same fungus was reisolated, fulfilling Koch's postulates. This is the first global report of leaf spot caused by C. cassiicola on A. altissima.

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韩国高原Ageratina altissima叶斑病研究初报

Ageratina altissima是一种干扰生态系统的入侵植物，广泛分布于韩国的改良生境中。2025年10月，在韩国富川和九里发现了白斑病。根据rDNA ITS和LSU区域的形态特征和系统发育分析，确定致病因子为cassiicola Corynespora。人工接种健康的桤木叶片导致症状的发展，并重新分离出相同的真菌，实现了科赫的假设。这是全球首次报道仙桃叶斑病。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Phytopathology 生物-植物科学

CiteScore

2.90

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： Journal of Phytopathology publishes original and review articles on all scientific aspects of applied phytopathology in agricultural and horticultural crops. Preference is given to contributions improving our understanding of the biotic and abiotic determinants of plant diseases, including epidemics and damage potential, as a basis for innovative disease management, modelling and forecasting. This includes practical aspects and the development of methods for disease diagnosis as well as infection bioassays. Studies at the population, organism, physiological, biochemical and molecular genetic level are welcome. The journal scope comprises the pathology and epidemiology of plant diseases caused by microbial pathogens, viruses and nematodes. Accepted papers should advance our conceptual knowledge of plant diseases, rather than presenting descriptive or screening data unrelated to phytopathological mechanisms or functions. Results from unrepeated experimental conditions or data with no or inappropriate statistical processing will not be considered. Authors are encouraged to look at past issues to ensure adherence to the standards of the journal.