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Pathogens
Special Issues
The Remaining Threat of Magnaporthe oryzae
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The Remaining Threat of Magnaporthe oryzae

A special issue of Pathogens (ISSN 2076-0817). This special issue belongs to the section "Fungal Pathogens".

Deadline for manuscript submissions: closed (31 May 2024) | Viewed by 1959

Special Issue Editor

Dr. Martha C. Giraldo

E-Mail Website
Guest Editor
Plant Pathology and Tissue Culture Lab., Dept. of Agro-Environmental Sciences, College of Agricultural Sciences, University of Puerto Rico-Mayagüez Campus, Mayagüez, Puerto Rico
Interests: understanding how the pathogen manipulates plant defenses to establish the disease, which leads us to generate the information required to develop effective strategies to achieve durable and broad disease control in staple crops; working on the development of IPM practices that lead to an increase in the marketable production of plantain, banana, roots, and tuber crops; working on areas related to food security, food safety, and agricultural biotechnology

Special Issue Information

Dear Colleagues,

The hemibiotrophic filamentous rice blast fungus, Magnaporthe oryzae, remains the biggest threat to global rice production being worldwide the most devastating disease of cultivated rice. Recent studies emphases on understanding infection-related development, host invasion, and fungal growth in rice cells to help us to understand the rice blast fungus biology and the molecular underpinnings of host infection. Such findings may aid the search for durable disease mitigation strategies. For this Special Issue, we seek original research or review articles or any other types of papers that focus on the molecular mechanisms and signaling pathways in both M. oryzae and rice during M. oryzae–rice interaction.

Dr. Martha C. Giraldo
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Pathogens is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Magnaporthe oryzae
  • molecular mechanisms
  • signaling pathway
  • plant-pathogen interactions
  • blast
  • rice blast
  • pathogenecity

Published Papers (1 paper)

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Research

12 pages, 628 KiB  
Article
Pathogenicity Analyses of Rice Blast Fungus (Pyricularia oryzae) from Japonica Rice Area of Northeast China
by Dongyuan Wang, Feng Zhu, Jichun Wang, Hongguang Ju, Yongfeng Yan, Shanyan Qi, Yuping Ou and Chengli Tian
Pathogens 2024, 13(3), 211; https://doi.org/10.3390/pathogens13030211 - 28 Feb 2024
Viewed by 1688
Abstract
In order to understand the pathogenicity differentiation of rice blast fungus (Pyricularia oryzae Cavara), a total of 206 isolates of P. oryzae were collected from three Japonica rice regions in Jilin Province, northeast China. Pathogenicity test showed that the reaction pattern of [...] Read more.
In order to understand the pathogenicity differentiation of rice blast fungus (Pyricularia oryzae Cavara), a total of 206 isolates of P. oryzae were collected from three Japonica rice regions in Jilin Province, northeast China. Pathogenicity test showed that the reaction pattern of 25 monogenic differential varieties (MDVs) of rice (Oryza sativa L.) demonstrated a wide pathogenic diversity among the isolates. Those MDVs harbor 23 resistance (R) genes with the susceptible variety Lijiangxintuanheigu (LTH) as control. Virulent isolates of MDVs harboring R genes Pish, Pit, Pia, Pii, Pik-s, Pik, Pita (two lines), and Pita-2 (two lines) had high frequencies ranging from 80 to 100%, to MDVs harboring R genes Pib, Pi5(t), Pik-m, Pi1, Pik-h, Pik-p, Pi7(t), Piz, Piz-5, and Piz-t showed intermediate frequencies ranging from 40 to 80%, and to MDVs with R genes Pi3, Pi9(t), Pi12(t), Pi19(t) and Pi20(t) presented low frequencies ranging only from 0 to 40%. The U-i-k-z-ta pattern of race-named criteria categorized the 206 isolates into 175 races. Sub-unit U73 for Pib, i7 for Pi3 and Pi5(t), k177 for Pik-m/Pik-h/Pik-p, z17 for Pi9(t), and ta332 for Pi20(t) were crucial on pathogenic differences in regions. Twenty-seven standard differential blast isolates (SDBIs) were selected to characterize resistance in rice accessions. This study could help to build a durable identification system against blast in the Japonica rice area of northeast China and enhance our understanding of the differentiation and diversity of blast races in the world. Full article
(This article belongs to the Special Issue The Remaining Threat of Magnaporthe oryzae)
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