Fungus: Diversity, Genomics and Genetics

A special issue of Microorganisms (ISSN 2076-2607). This special issue belongs to the section "Environmental Microbiology".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 2669

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Guest Editor
Infectology and Clinical Immunology Laboratory Center of Excellence in Translational Medicine, Universidad de La Frontera, Temuco, Chile
Interests: biofilms; environmental microbiology; filamentous fungi; taxonomy; molecular mycology; fungi; environmental mycology; fungal taxonomy; mycology; medical mycology
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Guest Editor
Instituto de Microbiología Clínica, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
Interests: medical mycology; environmental mycology; molecular biology
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Special Issue Information

Dear Colleagues,

Fungal organisms are a heterogeneous group that is widely distributed worldwide and can be isolated from diverse ecosystems, from desert areas to frozen areas, such as Antarctica. Fungal diversity is still a little-explored topic. The important number of cryptic species described in several genera makes it necessary to incorporate multi-locus and phylogenetic studies to gain adequate knowledge of their taxa’s true diversity. Genomics constitute the basis of countless studies focused on knowing and understanding the mechanisms of the pathogenicity, production, and secretion of metabolites of biotechnological interest, as well as on the interactions with other microorganisms and with plant, human, and animal hosts. This Special Issue aims to expand our knowledge on the diversity of fungal species from clinical or environmental origins, especially in the few explored substrates or geographical regions. Thus, it welcomes research that includes genomics or genetic studies based on multi-locus or multi-omics analyses with the goal of increasing our understanding of fungi and their interactions.

Dr. Isabel Antonieta Iturrieta-González
Dr. Patrício Christian Godoy-Martínez
Guest Editors

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Keywords

  • fungal diversity
  • fungal genomics
  • phylogenetics
  • fungal taxonomy
  • Ascomycota
  • Basidiomycota
  • phylogeny
  • cryptic species
  • taxonomy
  • phytopathogenic fungi

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Published Papers (2 papers)

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Research

12 pages, 3028 KiB  
Article
Locust Pathogen Aspergillus oryzae XJ1 Is Different from Aspergillus oryzae and Aspergillus flavus Based on Genomics Comparisons
by Yinwei You, Xiao Xu, Hui Liu and Long Zhang
Microorganisms 2024, 12(12), 2501; https://doi.org/10.3390/microorganisms12122501 - 4 Dec 2024
Viewed by 837
Abstract
Fungi play an increasingly important role in the biological control of insect pests. Aspergillus oryzae XJ1 is highly virulent to locust adults and nymphs, which are a destructive economic pest worldwide. Because of its host association with locusts, which is unique in Aspergillus [...] Read more.
Fungi play an increasingly important role in the biological control of insect pests. Aspergillus oryzae XJ1 is highly virulent to locust adults and nymphs, which are a destructive economic pest worldwide. Because of its host association with locusts, which is unique in Aspergillus, in this study, we examined the genetic relationships of A. oryzae XJ1 within Aspergillus. We sequenced the genome of A. oryzae XJ1 and compared it with the genomes of other Aspergillus species. The complete genome of A. oryzae XJ1 is 37.9 Mb, comprising 11,720 putative genes, assembled into eight chromosomes. The genome size is similar to that of other A. oryzae strains. Phylogenomic analysis indicated that A. oryzae XJ1 was most closely related to A. flavus NRRL3357, not A. oryzae RIB40. Core/pan-genome analysis of A. oryzae XJ1 and other Aspergillus species revealed that A. oryzae XJ1 had 704 strain-specific genes, whereas A. flavus NRRL3357, A. oryzae KDG 21, and A. parasiticus NRRL 2999 had 646, 955, and 779 unique genes, respectively. The A. oryzae XJ1 genome showed structural differences compared with the genomes of A. oryzae RIB40 and A. flavus NRRL3357 in genomic synteny analysis. These results indicate that A. oryzae XJ1 is genetically distinct at the genome level from other Aspergillus species, including A. oryzae and A. flavus, and may be as a distinct species. This will provide new insight into the classification of Aspergillus based on genomics. Full article
(This article belongs to the Special Issue Fungus: Diversity, Genomics and Genetics)
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14 pages, 4612 KiB  
Article
Development of Green Fluorescent Protein-Tagged Strains of Fusarium acuminatum via PEG-Mediated Genetic Transformation
by Fangyi Ju, Zhongqiang Qi, Jiajin Tan and Tingting Dai
Microorganisms 2024, 12(12), 2427; https://doi.org/10.3390/microorganisms12122427 - 25 Nov 2024
Viewed by 951
Abstract
Fusarium acuminatum is recognized as the causative agent of root rot in many forestry and agricultural plants. In recent years, root rot and foliage blight caused by F. acuminatum have become widespread and severe in China, particularly affecting Dianthus chinensis. The infection [...] Read more.
Fusarium acuminatum is recognized as the causative agent of root rot in many forestry and agricultural plants. In recent years, root rot and foliage blight caused by F. acuminatum have become widespread and severe in China, particularly affecting Dianthus chinensis. The infection mechanism of F. acuminatum remains a pressing area for research. A crucial approach to elucidating its pathogenic mechanisms involves the genetic modification of candidate genes, which necessitates effective transformation systems. Currently, protoplast-mediated transformation (PMT) serves as a valuable tool for studying plant-pathogen interactions and offers several advantages over conventional transformation methods. In this study, we employed the PMT technique to establish a transformation system for the F. acuminatum strain FDCY-5 due to its benefits such as ease of operation, low cost, high conversion efficiency, and broad applicability. We successfully developed a transformation system capable of producing abundant high-quality protoplasts from F. acuminatum and generating green fluorescent protein (GFP) transformants. To verify whether GFP was constitutively expressed, we utilized fluorescence microscopy alongside PCR technology. The results demonstrated that GFP was effectively transformed into the protoplasts of F. acuminatum and expressed successfully. The established protoplast transformation system for F. acuminatum provides a foundational platform for analyzing functional genes within infected host plants as well as understanding the molecular mechanisms underlying host plant infections by F. acuminatum. Full article
(This article belongs to the Special Issue Fungus: Diversity, Genomics and Genetics)
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