导致中国高粱叶斑病的高粱表球菌的鉴定和特征描述

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection Pub Date : 2024-11-23 DOI:10.1016/j.cropro.2024.107044

J. Xu, L. Hu, Y. Jiang, Jichen Yan

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引用次数: 0

摘要

高粱[Sorghum bicolor (L.)Moench] 是中国最重要的粮食作物之一，也用作饲料、酿酒和工业原料。近年来，在中国辽宁省的田间调查中，高粱植株上发现了一种新的叶斑病。该病原采用常规病原分离方法进行分离，并通过病原的形态特征、文化特征以及包括内部转录间隔序列（ITS）、β-微管蛋白序列（TUB）和大亚基序列（LSU）在内的组合基因的系统进化分析进行鉴定。根据形态学特征和系统进化分析，确定病原真菌为高粱表球菌（Epicoccum sorghinum）。在温室条件下接种高粱栽培品种，证实了其致病性。该研究首次证实高粱疫霉菌是该病在中国的病原菌，该病对中国高粱的产量构成潜在威胁。

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Identification and characterization of Epicoccum sorghinum causing leaf spot on sorghum in China

Sorghum[Sorghum bicolor (L.)Moench] is one of the most important food crops and also used as forage, brewing and industrial raw materials in China. In recent years, during field surveys a new leaf spot was detected on sorghum plants in Liaoning Province, China. The pathogen was isolated used a conventional pathogen isolation method and identified by its morphology cultural characters and phylogenetic analysis of the combined genes including the internal transcribed spacer (ITS), β-tubulin (TUB) and Large subunit (LSU) sequences, respectively. Based on morphological characteristics and phylogenetic analyses, the pathogenic fungus was identified as Epicoccum sorghinum. Pathogenicity test was confirmed by inoculating sorghum cultivars under greenhouse conditions. This study is the first time to confirmed E. sorghinum as the causal agent of the disease in China, and this disease represents a potential threat to sorghum productivity in China.

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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.