墨西哥出现了引起蓝莓根腐病和冠腐病的 Phytopythium helicoides

IF 1.1 4区农林科学 Q3 PLANT SCIENCES

Journal of Phytopathology Pub Date : 2024-09-26 DOI:10.1111/jph.13403

Perla R. Nuñez-García, Willie A. S. Vieira, Isabel Cruz-Lachica, Raymundo S. García-Estrada, Isidro Marquez-Zequera, Guillermo Márquez-Licona, Juan M. Tovar-Pedraza

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引用次数: 0

摘要

2023 年 8 月，位于墨西哥锡那罗亚州瓜萨韦的两块商业田地中的蓝莓植株出现了严重的冠腐病和根腐病症状。研究人员获得了具有卵菌形态的菌落，并纯化了两个分离物。通过形态学研究、致病性测试和系统发育分析（包括内部转录间隔序列和大亚基序列数据），确定病原菌为Phytopythium helicoides。这是全球首次报道 P. helicoides 引起蓝莓冠腐病和根腐病。

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Occurrence of Phytopythium helicoides Causing Root and Crown Rot of Blueberry in Mexico

In August 2023, severe symptoms of crown and root rot were detected on blueberry plants in two commercial fields located in Guasave, Sinaloa, Mexico. Colonies with oomycete morphology were obtained and two isolates were purified. The causal agent was identified as Phytopythium helicoides by a combination of morphological studies, pathogenicity tests, and phylogenetic analysis including data from internal transcribed spacer and large subunit sequences. This is the first report of P. helicoides causing crown and root rot of blueberry worldwide.

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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.