Ecology of Pathogenic Fungi

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

Deadline for manuscript submissions: 30 April 2024 | Viewed by 3530

Special Issue Editors


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Guest Editor
Department of Forest Entomology and Pathology, Poznań University of Life Sciences, Poznań, Poland
Interests: forest pathology; forest and nursery diseases; invasive species; biological control of tree diseases

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Guest Editor
Institute of Plant Genetics, Polish Academy of Sciences, Poznan, Poland
Interests: Isolation and molecular identification of phytopathogenic fungi; plant resistance to diseases caused by fungi; microscopic and molecular detection of asco- and conidiospores of phytopathogenic and saprotrophic fungi in air samples

Special Issue Information

Dear Colleagues,

Plant diseases seriously affect human society and the wider environment through their damage to economic development, food production, and natural landscapes over human history. They are a continuous threat to crops and forests, causing significant economic losses in yields worldwide. Plant pathogens are present in every niche, from the air to plant tissues to the soil and water the plants live in. Despite pathogens being from different systematic groups, they share the ability to infect their hosts, and the key to their success often lies in high host density and stress—more recently also related to climate changes. Therefore, it is crucial to understand the plant pathogen ecology and etiology in order to develop effective management strategies and improve or minimise yield losses. Understanding the interactions of hosts with pathogens, the environment, mechanisms of disease transmission and sources of inoculum is vital for the proper management of plant diseases.

This Special Issue of Pathogens is devoted to the ecology of plant pathogenic fungi. We welcome researchers to submit manuscripts that focus on the ecology and etiology of plant pathogens. Multiple annual surveys and forest/field-oriented studies, and data to substantiate on plant diseases are highly encouraged. However, all types of articles will be considered for publication, including short reports, preliminary research articles, and reviews.

Dr. Marta Bełka
Dr. Joanna Kaczmarek
Guest Editors

Manuscript Submission Information

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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

  • fungal ecology
  • plant pathogens
  • fungi
  • bacteria
  • viruses

Published Papers (2 papers)

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Research

15 pages, 2629 KiB  
Article
Plant-Disease-Suppressive and Growth-Promoting Activities of Endophytic and Rhizobacterial Isolates Associated with Citrullus colocynthis
by Badriya Khalfan Al-Shuaibi, Elham Ahmed Kazerooni, Shah Hussain, Rethinasamy Velazhahan and Abdullah Mohammed Al-Sadi
Pathogens 2023, 12(11), 1275; https://doi.org/10.3390/pathogens12111275 - 24 Oct 2023
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Abstract
This study was conducted to investigate the antagonistic potential of endophytic and rhizospheric bacterial isolates obtained from Citrullus colocynthis in suppressing Fusarium solani and Pythium aphanidermatum and promoting the growth of cucumber. Molecular identification of bacterial strains associated with C. colocynthis confirmed that these [...] Read more.
This study was conducted to investigate the antagonistic potential of endophytic and rhizospheric bacterial isolates obtained from Citrullus colocynthis in suppressing Fusarium solani and Pythium aphanidermatum and promoting the growth of cucumber. Molecular identification of bacterial strains associated with C. colocynthis confirmed that these strains belong to the Achromobacter, Pantoea, Pseudomonas, Rhizobium, Sphingobacterium, Bacillus, Sinorhizobium, Staphylococcus, Cupriavidus, and Exiguobacterium genera. A dual culture assay showed that nine of the bacterial strains exhibited antifungal activity, four of which were effective against both pathogens. Strains B27 (Pantoea dispersa) and B28 (Exiguobacterium indicum) caused the highest percentage of inhibition towards F. solani (48.5% and 48.1%, respectively). P. aphanidermatum growth was impeded by the B21 (Bacillus cereus, 44.7%) and B28 (Exiguobacterium indicum, 51.1%) strains. Scanning electron microscopy showed that the strains caused abnormality in phytopathogens’ mycelia. All of the selected bacterial strains showed good IAA production (>500 ppm). A paper towel experiment demonstrated that these strains improved the seed germination, root/shoot growth, and vigor index of cucumber seedlings. Our findings suggest that the bacterial strains from C. colocynthis are suppressive to F. solani and P. aphanidermatum and can promote cucumber growth. This appears to be the first study to report the efficacy of these bacterial strains from C. colocynthis against F. solani and P. aphanidermatum. Full article
(This article belongs to the Special Issue Ecology of Pathogenic Fungi)
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15 pages, 4289 KiB  
Article
Optimized High Throughput Ascochyta Blight Screening Protocols and Immunity to A. pisi in Pea
by Emmanuel N. Annan, Bernard Nyamesorto, Qing Yan, Kevin McPhee and Li Huang
Pathogens 2023, 12(3), 494; https://doi.org/10.3390/pathogens12030494 - 22 Mar 2023
Cited by 1 | Viewed by 1923
Abstract
Ascochyta blight (AB) is a destructive disease of the field pea (Pisum sativum L.) caused by necrotrophic fungal pathogens known as the AB-disease complex. To identify resistant individuals to assist AB resistance breeding, low-cost, high throughput, and reliable protocols for AB screening [...] Read more.
Ascochyta blight (AB) is a destructive disease of the field pea (Pisum sativum L.) caused by necrotrophic fungal pathogens known as the AB-disease complex. To identify resistant individuals to assist AB resistance breeding, low-cost, high throughput, and reliable protocols for AB screening are needed. We tested and optimized three protocols to determine the optimum type of pathogen inoculum, the optimal development stage for host inoculation, and the timing of inoculation for detached-leaf assays. We found that different plant development stages do not affect AB infection type on peas, but the timing of inoculation affects the infection type of detached leaves due to wound-induced host defense response. After screening nine pea cultivars, we discovered that cultivar Fallon was immune to A. pisi but not to A. pinodes or the mixture of the two species. Our findings suggest that AB screening can be done with any of the three protocols. A whole-plant inoculation assay is necessary for identifying resistance to stem/node infection. Pathogen inoculation must be completed within 1.5 h post-detachment to avoid false positives of resistance for detach-leaf assays. It is essential to use a purified single-species inoculum for resistant resource screenings to identify the host resistance to each single species. Full article
(This article belongs to the Special Issue Ecology of Pathogenic Fungi)
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