First Report of Stem Rot in Muskmelon Caused by Macrophomina pseudophaseolina

IF 1.1 4区农林科学 Q3 PLANT SCIENCES

Journal of Phytopathology Pub Date : 2025-09-15 DOI:10.1111/jph.70161

Allinny Luzia Alves Cavalcante, Dariane Monteiro Viana, Germana Vitória Ricarto Moreira, Andréia Mitsa Paiva Negreiros, Kamila Câmara Correia, Rui Sales Junior

引用次数: 0

Abstract

During 2022–2023, muskmelon (Cucumis melo) plants showing stem rot and vine decline were observed in commercial fields in northeastern Brazil. Fungal isolates obtained from symptomatic tissues were identified as Macrophomina pseudophaseolina based on morphology, species-specific PCR and multilocus phylogeny (ITS, EF1-α and β-tubulin). Pathogenicity was confirmed in greenhouse assays, reproducing symptoms on ‘Natal RZ’ plants. This is the first worldwide report of M. pseudophaseolina causing stem rot in muskmelon.

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甜瓜茎腐病研究初报

在2022-2023年期间，在巴西东北部的商业田中观察到甜瓜（Cucumis melo）植株出现茎腐病和藤蔓下降。根据形态学、种特异性PCR和多位点系统发育（ITS、EF1-α和β-微管蛋白）鉴定，从有症状的组织中分离的真菌为假相巨噬菌（Macrophomina pseudoophaseolina）。在温室试验中证实了致病性，在‘ Natal RZ ’植株上再现了症状。这是世界上第一次报道引起甜瓜茎腐病的假葡萄分枝杆菌。

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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.