Erioglossum rubiginosum, a new alternative host of rubber tree powdery mildew Erysiphe quercicola

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection Pub Date : 2025-10-11 DOI:10.1016/j.cropro.2025.107443

Zheyu Zhang , Shanshan Yin , Jonathan S. West , Daquan Luo , Xueren Cao

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引用次数: 0

Abstract

Erioglossum rubiginosum (synonym as Lepisanthes rubiginosa), is a shrub-like plant belonging to the family Sapindaceae. This species is a common undergrowth plant species in rubber tree plantations, which provide more than 90% of the total natural rubber production. Powdery mildew was found to occur seriously on E. rubiginosum during an investigation on powdery mildew of rubber tree caused by Erysiphe quercicola. In this study, leaves of E. rubiginosum with powdery mildew symptoms were collected and the pathogen was identified using morphological and molecular analyses using the internal transcribed spacer (ITS) and 28 S rDNA regions. The results indicated that E. quercicola was the causal agent of E. rubiginosum powdery mildew. Based on cross-pathogenicity analysis, E. quercicola from E. rubiginosum and rubber tree could cause typical symptoms on each other, which confirmed that E. rubiginosum is an alternative host of rubber tree powdery mildew. To our knowledge, this is the first report of E. quercicola causing powdery mildew on E. rubiginosum. Whether E. rubiginosum can be one of the primary sources of the rubber tree powdery mildew epidemics needs future studies.

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橡胶树白粉病的一种新的替代寄主

红毛藓（Lepisanthes rubiginosa）是一种灌木状植物，属于皂科。本种是橡胶树人工林中常见的林下植物，占天然橡胶总产量的90%以上。通过对橡胶树白粉病的调查，发现橡胶树白粉病发生严重。本研究收集了具有白粉病症状的红荷叶，利用其内部转录间隔区（ITS）和28个S rDNA区进行形态学和分子鉴定。结果表明，槲寄生菌是导致褐皮杆菌白粉病的病原菌。交叉致病性分析表明，橡胶树的槲寄生菌与橡胶树的槲寄生菌可相互引起典型症状，证实了橡胶树的槲寄生菌是橡胶树白粉病的替代寄主。据我们所知，这是第一次报道槲皮蚧引起红毛螨白粉病。橡胶树白粉病是否可能是橡胶树白粉病流行的主要来源之一还有待进一步研究。

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.