First report of blast disease on Oplismenopsis najada caused by Pyricularia oryzae in Argentina

IF 1.1 4区农林科学 Q3 PLANT SCIENCES

Journal of Phytopathology Pub Date : 2024-08-21 DOI:10.1111/jph.13377

Lisandro Martín Bastida, Susana Alejandra Gutierrez, Gustavo Angel Bich, María Lorena Castrillo, Joaquín Augusto Quiroga, Marcelo Aníbal Carmona, Lourdes Cardozo Téllez, Alice Rocío Chávez

引用次数: 0

Abstract

In 2022, Pyricularia blast-like symptoms were observed in Oplismenopsis najada plants in Argentina. P. oryzae was identified based on its cultural and morphometric characteristics, nucleotide sequencing of ITS1-5.8S-ITS2 amplicons, complemented with phylogenetic analyses, and PCR with Pot2 marker. Koch's postulates were confirmed on O. najada and the Guri INTA CL variety of Oryza sativa. The obtained sequences were deposited in GenBank (ITS: OR741772). The PCR reaction amplified the Pot2 marker, confirming that it is P. oryzae. To our best knowledge, this is the first report of O. najada as new host of P. oryzae worldwide.

查看原文本刊更多论文

阿根廷首次报告由 Pyricularia oryzae 引起的 Oplismenopsis najada 穗状病毒病

2022 年，在阿根廷的 Oplismenopsis najada 植物上观察到了类似于疫霉菌的症状。根据其栽培和形态特征、ITS1-5.8S-ITS2 扩增子的核苷酸测序、系统进化分析和带有 Pot2 标记的 PCR，确定了 P. oryzae。在 O. najada 和 Oryza sativa 的 Guri INTA CL 品种上证实了科赫假说。获得的序列已存入 GenBank（ITS：OR741772）。PCR 反应扩增了 Pot2 标记，证实它是 P. oryzae。据我们所知，这是全球首次报道 O. najada 是 P. oryzae 的新宿主。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

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.