中国首次报告三种镰刀菌引起豇豆（Vigna unguiculata）根腐病

IF 1.1 4区农林科学 Q3 PLANT SCIENCES

Journal of Phytopathology Pub Date : 2024-10-18 DOI:10.1111/jph.13413

Qian Luo, Jia-Hao Lai, Teng-Fei Zhou, You-Xin Yang, Bing Liu

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引用次数: 0

摘要

豇豆（Vigna unguiculata）以营养价值高著称，是世界上最重要的食用豆类之一。2023 年 9 月，江西省南昌市的一个温室中发现了一种根腐病，症状是植株枯萎。根据形态特征和四个位点（包括内部转录间隔区（rDNA-ITS）、翻译伸长因子 1-α（TEF1）、β-微管蛋白（TUB2）和钙调蛋白（CAM））的系统发育分析，从病样中分离出的菌株被鉴定为同心镰刀菌、富士黑镰刀菌和incarnatum镰刀菌。在无症状的豇豆幼苗上证实了代表性分离物的致病性。虽然以前曾有报道称其他镰刀菌属（尤其是 F. oxysporum）是豇豆的病原菌，但本研究是首次记录 F. concentricum、F. fujikuroi 和 F. incarnatum 是中国豇豆根腐病的病原菌。

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First Report of Three Fusarium spp. Causing Root Rot of Cowpea (Vigna unguiculata) in China

Cowpea (Vigna unguiculata), known for its high nutritional value, is one of the most important edible beans worldwide. In September 2023, a root rot disease was found in a greenhouse in Nanchang, Jiangxi Province, with symptoms of plant wilting. The isolates from the diseased samples were identified as Fusarium concentricum, F. fujikuroi and F. incarnatum based on morphological characteristics and phylogenetic analysis of four loci including the internal transcribed spacer region (rDNA-ITS), translation elongation factor 1-alpha (TEF1), beta-tubulin (TUB2) and calmodulin (CAM). The pathogenicity of the representative isolates was confirmed on asymptomatic cowpea seedlings. Although other Fusarium species, particularly F. oxysporum, have been previously reported as pathogens of cowpea, this study is the first to document F. concentricum, F. fujikuroi, and F. incarnatum as causative agents of cowpea root rot in China.

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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.