Colletotrichum siamense causing leaf spot on Parthenocissus semicordata in China

IF 2.5 2区 农林科学 Q1 AGRONOMY
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Abstract

Parthenocissus semicordata is an excellent vine plant for vertical greening of walls or buildings. A leaf spot disease has been investigated on P. semicordata in the Matoushan National Nature Reserve in Fuzhou city, Jiangxi province, China, since August 2021. The disease incidence was approximately 60–65%, which led to affecting its growth and ornamental value. The pathogen was identified as Colletotrichum siamense based on morphological characteristics and phylogenetic analysis. Pathogenicity tests were conducted by inoculating healthy leaves with spore suspension of C. siamense, and Koch's postulates were confirmed by re-isolation and identification of the pathogen from infected leaves. This is the first known occurrence of C. siamense causing leaf spot on P. semicordata in China. These findings play a crucial role in increasing the knowledge of P. semicordata diseases in China and provide pivotal information for epidemiological studies and control strategies.

Colletotrichum siamense 在中国半夏上引起的叶斑病
半夏是垂直绿化墙壁或建筑物的优良藤本植物。自 2021 年 8 月以来,中国江西省抚州市马头山国家级自然保护区对半边莲叶斑病进行了调查。病害发生率约为 60-65%,影响了其生长和观赏价值。根据形态特征和系统发育分析,确定病原菌为Colletotrichum siamense。通过将 C. siamense 的孢子悬浮液接种健康叶片,进行了致病性试验,并通过从感染叶片中重新分离和鉴定病原体,证实了科赫假设。这是中国首次发现 C. siamense 在半夏上引起叶斑病。这些发现对增进中国对半夏病害的了解起到了重要作用,并为流行病学研究和防治策略提供了关键信息。
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来源期刊
Crop Protection
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.
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