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Toxins of Fusarium and Mycoviruses
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Toxins of Fusarium and Mycoviruses

A special issue of Journal of Fungi (ISSN 2309-608X). This special issue belongs to the section "Fungal Pathogenesis and Disease Control".

Deadline for manuscript submissions: closed (30 September 2022) | Viewed by 5952

Special Issue Editors

Prof. Dr. Julio Alberto Zygadlo

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Guest Editor
Instituto Multidisciplinario de Biología Vegetal, Cátedra de Química Orgánica, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba 5016, Argentina
Interests: new botanical biopesticides from plants–microorganisms interactions; botanical pesticides in sustainable agriculture; botanical pesticides and their mode of action; botanical pesticides in pest management for agricultural crop production; nanoformulations of botanical pesticides; botanical pesticides regulation and legislation; botanical pesticides economics of production; agronomic aspects that affect the production of botanical pesticides (not including essential oils)
Special Issues, Collections and Topics in MDPI journals
Dr. José Sebastián Dambolena

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Guest Editor
Instituto Multidisciplinario de Biología Vegetal (IMBIV-CONICET), Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba 5016, Argentina
Interests: mycoviruses; mycotoxins; Fusarium; fumonisin; hypovirulence; secondary metabolism

Special Issue Information

Dear Colleagues,

Mycotoxins produced by the different species of Fusarium are the cause of great economic losses due to the way they affect the food of people and livestock. Therefore, there is a need to understand the factors that cause the fungus to produce them. On the other hand, 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 and review papers that cover the most recent scientific discoveries in two connected research topics: 1) Fusarium mycotoxins 2) and mycoviruses. In terms of Fusarium mycotoxin research, the Special Issue covers the role of Fusarium mycotoxins in the interactions between the fungus and other organisms, the metabolomics, and molecular diversity within Fusarium species and the effect of environmental conditions on mycotoxin production. In terms of mycovirus research, the 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. Julio Alberto Zygadlo
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

  • Fusarium
  • mycotoxins
  • genes
  • environment
  • oxidative stress mycoviruses
  • hypovirulence
  • mycovirus-fungus interactions
  • RNA silencing

Published Papers (2 papers)

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Research

16 pages, 4012 KiB  
Article
Functional Characterization of the M36 Metalloprotease FgFly1 in Fusarium graminearum
by Xintong Wang, Miaomiao He, Huanhuan Liu, Huiyi Ding, Kouhan Liu, Ying Li, Peng Cheng, Qiang Li and Baotong Wang
J. Fungi 2022, 8(7), 726; https://doi.org/10.3390/jof8070726 - 12 Jul 2022
Cited by 4 | Viewed by 2921
Abstract
Fungalysin metallopeptidase (M36), a hydrolase, catalyzes the hydrolysis of alanine, glycine, etc. Normally, it is considered to play an important role in the progress of fungal infection. However, the function of fungalysin metallopeptidase (M36) in Fusarium graminearum has not been reported. In this [...] Read more.
Fungalysin metallopeptidase (M36), a hydrolase, catalyzes the hydrolysis of alanine, glycine, etc. Normally, it is considered to play an important role in the progress of fungal infection. However, the function of fungalysin metallopeptidase (M36) in Fusarium graminearum has not been reported. In this study, we explored the biological functions of FgFly1, a fungalysin metallopeptidase (M36) of F. graminearum. We found that ΔFgFly1 did not affect the ability to produce DON toxin, although it inhibited spore germination during asexual reproduction and reduction in pathogenicity compared with PH-1. Therefore, we speculated that FgFly1 affects the pathogenicity of F.graminearum by affecting pathways related to wheat disease resistance. Target protein TaCAMTA (calmodulin-binding transcription activator) was selected by a yeast two-hybrid (Y2H) system. Then, the interaction between FgFly1 and TaCAMTA was verified by bimolecular fluorescent complimentary (BiFC) and luciferase complementation assay (LCA). Furthermore, compared with wild-type Arabidopsis thaliana, the morbidity level of ΔAtCAMTA was increased after infection with F.graminearum, and the expression level of NPR1 was significantly reduced. Based on the above results, we concluded that FgFly1 regulated F. graminearum pathogenicity by interacting with host cell CAMTA protein. Full article
(This article belongs to the Special Issue Toxins of Fusarium and Mycoviruses)
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18 pages, 4753 KiB  
Article
A New Double-Stranded RNA Mycovirus in Cryphonectria naterciae Is Able to Cross the Species Barrier and Is Deleterious to a New Host
by Carolina Cornejo, Sakae Hisano, Helena Bragança, Nobuhiro Suzuki and Daniel Rigling
J. Fungi 2021, 7(10), 861; https://doi.org/10.3390/jof7100861 - 14 Oct 2021
Cited by 16 | Viewed by 2597
Abstract
Cryphonectria is a fungal genus associated with economically significant disease of trees. Herein we characterized a novel double-stranded RNA virus from the fungal species Cryphonectria naterciae, a species unexplored as a virus host. De novo assembly of RNA-seq data and Sanger sequencing [...] Read more.
Cryphonectria is a fungal genus associated with economically significant disease of trees. Herein we characterized a novel double-stranded RNA virus from the fungal species Cryphonectria naterciae, a species unexplored as a virus host. De novo assembly of RNA-seq data and Sanger sequencing of RACE (rapid amplification of cDNA ends) clones gave the complete, non-segmented genome (10,164 bp) of the virus termed Cryphonectria naterciae fusagravirus (CnFGV1) that was phylogenetically placed within the previously proposed viral family Fusagraviridae. Of 31 field-collected strains of C. naterciae, 40% tested CnFGV1-positive. Cocultivation resulted in within-species transmission of CnFGV1 to virus-free strains of C. naterciae. Comparison of the mycelium phenotype and the growth rate of CnFGV1-infected and virus-free isogenic strains revealed frequent sectoring and growth reduction in C. naterciae upon virus infection. Co-culturing also led to cross-species transmission of CnFGV1 to Cryphonectria carpinicola and Cryphonectria radicalis, but not to Cryphonectria parasitica. The virus-infected C. naterciae and the experimentally infected Cryphonectria spp. readily transmitted CnFGV1 through asexual spores to the next generation. CnFGV1 strongly reduced conidiation and in some cases vegetative growth of C. carpinicola, which is involved in the European hornbeam disease. This study is the first report of a fusagravirus in the family Cryphonectriaceae and lays the groundwork for assessing a hypovirulence effect of CnFGV1 against the hornbeam decline in Europe. Full article
(This article belongs to the Special Issue Toxins of Fusarium and Mycoviruses)
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