Botryosphaeria dothidea causes leaf spot disease on Rosa roxburghii in China

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection Pub Date : 2025-06-14 DOI:10.1016/j.cropro.2025.107312

Qinyi Hu , Taotao An , Wei Jia , Junxian Chen , Ying Xu , Zhu Li , Haixia Ding

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引用次数: 0

Abstract

Rosa roxburghii is a perennial shrub belonging to Rosaceae family, is a resource for both medicinal and edible purposes. In July 2023, a survey was conducted in Guiding (26°459′N, 107°149′E), Guizhou, China. The incidence rate reached 25 % in the field of 100,00 m², which seriously affected the yield and nutritional value of R roxburghii. The main characteristic of the infected leaves is irregular black spots. Botryosphaeria dothidea was isolated from the symptomatic leaves of R roxburghii, and it was identified by morphological and phylogenetic (ITS, TEF1-α, TUB2). Inoculation with the representative isolate B-Y-1 on the leaves can induce leaf spot disease of R roxburghii. Finally, Koch's postulates were established by re-isolation and re-identification of B. dothidea isolates from the inoculated leaves. To our knowledge, this is the first report of leaf spot disease caused by B. dothidea on R roxburghii leaves. These findings will be helpful for formulating the prevention and management strategies for leaf spot disease of R roxburghii in Guizhou.

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中国刺梨叶斑病的病原菌

刺梨是蔷薇科的多年生灌木，是一种药用和食用资源。2023年7月，在中国贵州guide（26°459′n, 107°149′e）进行了一次调查。在10万m2的田间，发病率达25%，严重影响了刺梨的产量和营养价值。病叶的主要特征是不规则的黑斑。从刺梨有症状的叶片中分离到刺梨葡萄球孢菌，并通过ITS、TEF1-α、TUB2等形态学和系统发育鉴定了该菌。在叶片上接种代表性分离物B-Y-1可诱发刺梨叶斑病。最后，通过从接种叶片中分离和再鉴定的方法，建立了科赫假设。据我们所知，这是第一次报道由刺蛾引起的刺蛾叶斑病在刺蛾叶上的发生。研究结果将为贵州刺梨叶斑病防治策略的制定提供依据。

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

Crop Protection 农林科学-农艺学

CiteScore

6.10

自引率

3.60%

发文量

200

审稿时长

29 days

期刊介绍： The Editors of Crop Protection especially welcome papers describing an interdisciplinary approach showing how different control strategies can be integrated into practical pest management programs, covering high and low input agricultural systems worldwide. Crop Protection particularly emphasizes the practical aspects of control in the field and for protected crops, and includes work which may lead in the near future to more effective control. The journal does not duplicate the many existing excellent biological science journals, which deal mainly with the more fundamental aspects of plant pathology, applied zoology and weed science. Crop Protection covers all practical aspects of pest, disease and weed control, including the following topics: -Abiotic damage- Agronomic control methods- Assessment of pest and disease damage- Molecular methods for the detection and assessment of pests and diseases- Biological control- Biorational pesticides- Control of animal pests of world crops- Control of diseases of crop plants caused by microorganisms- Control of weeds and integrated management- Economic considerations- Effects of plant growth regulators- Environmental benefits of reduced pesticide use- Environmental effects of pesticides- Epidemiology of pests and diseases in relation to control- GM Crops, and genetic engineering applications- Importance and control of postharvest crop losses- Integrated control- Interrelationships and compatibility among different control strategies- Invasive species as they relate to implications for crop protection- Pesticide application methods- Pest management- Phytobiomes for pest and disease control- Resistance management- Sampling and monitoring schemes for diseases, nematodes, pests and weeds.