First Report of Pleurostoma richardsiae Causing Canker and Dieback of Avocado Trees in Mexico

IF 1.1 4区农林科学 Q3 PLANT SCIENCES

Journal of Phytopathology Pub Date : 2026-04-01 DOI:10.1111/jph.70295

Karen Guadalupe Cantú-Treviño, Adriana Gutiérrez-Díez, Salvador Ochoa-Ascencio

引用次数: 0

Abstract

In 2020, avocado trees (Persea americana var. drymifolia) showing symptoms of branch shoot dieback and cankers were found in commercial orchards in northern Nuevo Leon, Mexico. Fungal isolates obtained from symptomatic tissues were identified on the basis of morphology and multilocus phylogeny (ITS, EF1-α, TUB2 and SSU). Pathogenicity was confirmed by inoculation on healthy branches of 7-year-old avocado trees. To our knowledge, this is the first report of Pleurostoma richardsiae causing canker and dieback in avocado trees.

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墨西哥牛油果溃疡病和枯死病的牛油果胸膜瘤首次报道

2020年，在墨西哥新莱昂北部的商业果园中发现了牛油果树（Persea americana varo drymifolia）出现枝梢枯死和溃疡病的症状。根据形态学和多位点系统发育（ITS、EF1-α、TUB2和SSU）对有症状组织分离的真菌进行鉴定。在7年生牛油果健康枝上接种证实了致病性。据我们所知，这是第一个关于牛油果胸膜瘤引起溃疡病和枯死的报道。

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

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.