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Plant Pathogens and Mycotoxins
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Plant Pathogens and Mycotoxins

A special issue of Journal of Fungi (ISSN 2309-608X).

Deadline for manuscript submissions: 31 May 2025 | Viewed by 1284

Special Issue Editors

Dr. Martín Gustavo Theumer

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Guest Editor
Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba X5000, Argentina
Interests: plant–pathogen interactions; fungal secondary metabolites
Special Issues, Collections and Topics in MDPI journals
Dr. José Sebastián Dambolena

E-Mail Website
Guest Editor
Instituto Multidisciplinario de Biología Vegetal (IMBIV, CONICET-UNC), Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba 5016, Argentina
Interests: phytopathogenic fungi; mycotoxins; mycoviruses; hypovirulence
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Phytopathogenic fungi and mycotoxin production are the cause of great economic losses due to their effect on the decrease in yield and quality of agricultural production. Therefore, there is a need to understand the biochemical, molecular, and genetic basis of plant–fungal pathogen interaction and biosynthesis of mycotoxins. In this context, the study of new natural strategies for the control of phytopathogenic fungi and mycotoxins represents an important area of research. The study of mycoviruses from plant pathogens appears to be a potential tool for the biological control of fungal crop diseases. Therefore, there is great interest in the different aspects involved in mycovirus–host interactions. 

In this Special Issue, we welcome original research articles, short communications, and reviews that cover the most recent scientific discoveries in two connected research topics: (1) plant–fungal pathogen interaction and mycotoxin biosynthesis (2) and mycoviruses.

In terms of plant–fungal pathogen interaction and mycotoxins biosynthesis, this Special Issue covers the biochemical, molecular, and genetic basis of plant–fungal pathogen interaction, the molecular mechanisms and factors involved in regulating mycotoxins biosynthesis, the role of mycotoxins in the interactions between the fungus and other organisms, and the effect of environmental conditions on mycotoxin production. In terms of mycovirus research, this Special Issue covers the identification of new mycoviruses and their effect on fungal hosts, the development of new methods for mycovirus research, the role of the fungal antiviral mechanism on mycovirus stability, and the host cellular processes altered by virus infection. 

We look forward to receiving your contribution. 

Dr. Martín Gustavo Theumer
Dr. José Sebastián Dambolena
Guest Editors

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. Journal of Fungi 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 2600 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

  • plant–pathogen interactions
  • fungal secondary metabolites
  • phytopathogenic fungi
  • mycotoxins
  • mycoviruses
  • hypovirulence

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Published Papers (2 papers)

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Research

15 pages, 2888 KiB  
Article
Functional Analysis of FoCrpA in Fusarium oxysporum Causing Rice Seedling Blight
by Chun Wang, Liang Wang, Xuanjie Zhao, Lei Hou, Qingran Liu, Rui Ren, Anqi Lv, Xinyang Liu, Tianliang Xiong, Peng Guo, Xiaofeng Xu, Zhe Ni, Chunlai Liu and Junhua Zhang
J. Fungi 2025, 11(4), 317; https://doi.org/10.3390/jof11040317 - 17 Apr 2025
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Abstract
Fusarium oxysporum is one of the main pathogens causing rice seedling blight disease. Revealing its pathogenic mechanism is of great significance for formulating prevention and control strategies for rice seedling blight disease. Copper transporting P-type ATPases (Cu-ATPase) is a large class of proteins [...] Read more.
Fusarium oxysporum is one of the main pathogens causing rice seedling blight disease. Revealing its pathogenic mechanism is of great significance for formulating prevention and control strategies for rice seedling blight disease. Copper transporting P-type ATPases (Cu-ATPase) is a large class of proteins located on the plasma membrane that utilize the energy provided by ATP hydrolysis phosphorylation to transport substrates across the membrane. It plays a crucial role in signal transduction, the maintenance of cell membrane stability, and material transport. The main function of Cu-ATPase is to maintain the homeostasis of copper in cells, which is essential for the normal growth and development of organisms. This study utilized the ATMT-mediated gene knockout method to obtain the knockout mutant ∆FoCrpA and the complementation strain ∆FoCrpA-C, which are highly homologous to the P-type heavy metal transport ATPase family in F. oxysporum. The results showed that, compared with the wild-type strain, the knockout mutant ∆FoCrpA had a lighter colony color; a reduced tolerance to copper ion, osmotic, and oxidative stress; a weakened ability to penetrate glass paper; and decreased pathogenicity. However, there was no significant difference in pathogenicity and other biological phenotypes between the complementation strain ∆FoCrpA-C and the wild-type strain. In summary, the FoCrpA gene is involved in osmotic and oxidative stress, affecting the invasion and penetration ability and pathogenicity of F. oxysporum, laying a theoretical foundation for understanding the development and pathogenic mechanism of F. oxysporum. Full article
(This article belongs to the Special Issue Plant Pathogens and Mycotoxins)
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28 pages, 2437 KiB  
Article
Omics-Based Comparison of Fungal Virulence Genes, Biosynthetic Gene Clusters, and Small Molecules in Penicillium expansum and Penicillium chrysogenum
by Holly P. Bartholomew, Christopher Gottschalk, Bret Cooper, Michael R. Bukowski, Ronghui Yang, Verneta L. Gaskins, Dianiris Luciano-Rosario, Jorge M. Fonseca and Wayne M. Jurick II
J. Fungi 2025, 11(1), 14; https://doi.org/10.3390/jof11010014 - 28 Dec 2024
Viewed by 914
Abstract
Penicillium expansum is a ubiquitous pathogenic fungus that causes blue mold decay of apple fruit postharvest, and another member of the genus, Penicillium chrysogenum, is a well-studied saprophyte valued for antibiotic and small molecule production. While these two fungi have been investigated [...] Read more.
Penicillium expansum is a ubiquitous pathogenic fungus that causes blue mold decay of apple fruit postharvest, and another member of the genus, Penicillium chrysogenum, is a well-studied saprophyte valued for antibiotic and small molecule production. While these two fungi have been investigated individually, a recent discovery revealed that P. chrysogenum can block P. expansum-mediated decay of apple fruit. To shed light on this observation, we conducted a comparative genomic, transcriptomic, and metabolomic study of two P. chrysogenum (404 and 413) and two P. expansum (Pe21 and R19) isolates. Global transcriptional and metabolomic outputs were disparate between the species, nearly identical for P. chrysogenum isolates, and different between P. expansum isolates. Further, the two P. chrysogenum genomes revealed secondary metabolite gene clusters that varied widely from P. expansum. This included the absence of an intact patulin gene cluster in P. chrysogenum, which corroborates the metabolomic data regarding its inability to produce patulin. Additionally, a core subset of P. expansum virulence gene homologues were identified in P. chrysogenum and were similarly transcriptionally regulated in vitro. Molecules with varying biological activities, and phytohormone-like compounds were detected for the first time in P. expansum while antibiotics like penicillin G and other biologically active molecules were discovered in P. chrysogenum culture supernatants. Our findings provide a solid omics-based foundation of small molecule production in these two fungal species with implications in postharvest context and expand the current knowledge of the Penicillium-derived chemical repertoire for broader fundamental and practical applications. Full article
(This article belongs to the Special Issue Plant Pathogens and Mycotoxins)
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