Journal of Microbiology

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Fungal diversity from Fildes Peninsula (Antarctica) and their antibiosis bioactivity against two plant pathogens: Ji Seon Kim, Enzo Romero, Yoonhee Cho, Ramón Ahumada-Rudolph, Christian Núñez, Jonhatan Gómez-Espinoza, Ernesto Moya-Elizondo, Sigisfredo Garnica, Young Woon Lim, Jaime R. Cabrera-Pardo; Received November 26, 2024 Accepted February 13, 2025 Published online April 14, 2025; DOI: https://doi.org/10.71150/jm.2411029 [Epub ahead of print]

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Abstract PDF Supplementary Material: Antarctic fungi can effectively adapt to extreme environments, which leads to the production of unique bioactive compounds. Studies on the discovery of fungi in the diverse environments of Antarctica and their potential applications are increasing, yet remain limited. In this study, fungi were isolated from various substrates on the Fildes Peninsula in Antarctica and screened for their antibiosis activity against two significant plant pathogenic fungi, Botrytis cinerea and Fusarium culmorum. Phylogenetic analysis using multiple genetic markers revealed that the isolated Antarctic fungal strains are diverse, some of which are novel, emphasizing the underexplored biodiversity of Antarctic fungi. These findings suggest that these fungi have potential for the development of new antifungal agents that can be applied in agriculture to manage fungal plant pathogens. Furthermore, the antibiosis activities of the isolated Antarctic fungi were evaluated using a dual-culture assay. The results indicated that several strains from the genera Cyathicula, Penicillium, and Pseudeurotium significantly inhibited pathogen growth, with Penicillium pancosmium showing the highest inhibitory activity against Botrytis cinerea. Similarly, Aspergillus and Tolypocladium strains exhibited strong antagonistic effects against Fusarium culmorum. This study enhances our understanding of Antarctic fungal diversity and highlights its potential for biotechnological applications.

Journal Articles

Mycorrhizal Fungal Diversity Associated with Six Understudied Ectomycorrhizal Trees in the Republic of Korea: Ki Hyeong Park , Seung-Yoon Oh , Yoonhee Cho , Chang Wan Seo , Ji Seon Kim , Shinnam Yoo , Jisun Lim , Chang Sun Kim , Young Woon Lim; J. Microbiol. 2023;61(8):729-739. Published online September 4, 2023; DOI: https://doi.org/10.1007/s12275-023-00073-1

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Abstract: Mycorrhizal fungi are key components of forest ecosystems and play essential roles in host health. The host specificity of mycorrhizal fungi is variable and the mycorrhizal fungi composition for the dominant tree species is largely known but remains unknown for the less common tree species. In this study, we collected soil samples from the roots of six understudied ectomycorrhizal tree species from a preserved natural park in the Republic of Korea over four seasons to investigate the host specificity of mycorrhizal fungi in multiple tree species, considering the abiotic factors. We evaluated the mycorrhizal fungal composition in each tree species using a metabarcoding approach. Our results revealed that each host tree species harbored unique mycorrhizal communities, despite close localization. Most mycorrhizal taxa belonged to ectomycorrhizal fungi, but a small proportion of ericoid mycorrhizal fungi and arbuscular mycorrhizal fungi were also detected. While common mycorrhizal fungi were shared between the plant species at the genus or higher taxonomic level, we found high host specificity at the species/OTU (operational taxonomic unit) level. Moreover, the effects of the seasons and soil properties on the mycorrhizal communities differed by tree species. Our results indicate that mycorrhizal fungi feature host-specificity at lower taxonomic levels.

Fungal Catastrophe of a Specimen Room: Just One Week is Enough to Eradicate Traces of Thousands of Animals: Ji Seon Kim , Yoonhee Cho , Chang Wan Seo , Ki Hyung Park , Shin Nam Yoo , Jun Won Lee , Sung Hyun Kim , Wonjun Lee , Young Woon Lim; J. Microbiol. 2023;61(2):189-197. Published online February 6, 2023; DOI: https://doi.org/10.1007/s12275-023-00017-9

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Abstract

Indoor fungi obtain carbon sources from natural sources and even recalcitrant biodegradable materials, such as plastics and synthetic dye. Their vigorous activity may have negative consequences, such as structural damage to building materials or the destruction of precious cultural materials. The animal specimen room of the Seoul National University stocked 36,000 animal resources that had been well-maintained for over 80 years. Due to abandonment without the management of temperature and humidity during the rainy summer season, many stuffed animal specimens had been heavily colonized by fungi. To investigate the fungal species responsible for the destruction of the historical specimens, we isolated fungi from the stuffed animal specimens and identified them at the species level based on morphology and molecular analysis of the β-tubulin (BenA) gene. A total of 365 strains were isolated and identified as 26 species in Aspergillus (10 spp.), Penicillium (14 spp.), and Talaromyces (2 spp.). Penicillium brocae and Aspergillus sydowii were isolated from most sections of the animal specimens and have damaged the feathers and beaks of valuable specimens. Our findings indicate that within a week of mismanagement, it takes only a few fungal species to wipe out the decades of history of animal diversity. The important lesson here is to prevent this catastrophe from occurring again through a continued interest, not to put all previous efforts to waste.

Citations

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Investigating the Role of Microclimate and Microorganisms in the Deterioration of Stone Heritage: The Case of Rupestrian Church from Jac, Romania
Dorina Camelia Ilieș, Andrei-Ionuț Apopei, Cristina Mircea, Alexandru Ilieș, Tudor Caciora, Berdenov Zharas, Lucian Barbu-Tudoran, Nicolaie Hodor, Alexandru Turza, Ana Cornelia Pereș, Thowayeb H. Hassan, Bahodirhon Safarov, Ioan-Cristian Noje
Applied Sciences.2024; 14(18): 8136. CrossRef
Fungal biodeterioration and preservation of cultural heritage, artwork, and historical artifacts: extremophily and adaptation
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Microbiology and Molecular Biology Reviews.2024;[Epub] CrossRef

Diversity and Dynamics of Marine Arenicolous Fungi in Three Seasides of the Korean Peninsula: Jun Won Lee , Chang Wan Seo , Wonjun Lee , Ji Seon Kim , Ki Hyeong Park , Yoonhee Cho , Young Woon Lim; J. Microbiol. 2023;61(1):63-82. Published online January 30, 2023; DOI: https://doi.org/10.1007/s12275-023-00011-1

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Abstract

Various arenicolous fungal species have been detected from the beach sand in the coastal area. However, little has been revealed regarding their distribution and dynamics. To investigate the overall diversity of marine arenicolous fungi (MAFs) in Korea and whether the composition of MAFs is affected by ocean currents, we isolated and analyzed the fungal community from the western, southern, and eastern seasides of the Korean Peninsula. In total, 603 strains were isolated and identified as 259 species based on appropriate molecular markers for each genus (ITS, BenA, CaM, tef1, and act). The composition of MAFs showed differences among the seasides. Our results indicate that many MAFs inhabit the beach sand on the Korean Peninsula, and the composition of MAFs is also affected by ocean currents flowing along each coast.

Citations

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Mycobiology.2025; 53(2): 144. CrossRef
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Published Erratum

Erratum to: Fungal Catastrophe of a Specimen Room: Just One Week is Enough to Eradicate Traces of Thousands of Animals: Ji Seon Kim , Yoonhee Cho , Chang Wan Seo , Ki Hyeong Park , Shinnam Yoo , Jun Won Lee , Sung Hyun Kim , Wonjun Lee , Young Woon Lim; J. Microbiol. 2023;61(6):653-653.; DOI: https://doi.org/10.1007/s12275-023-00060-6

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Abstract: Correction to: Journal of Microbiology (2023) 61:189–197 https://doi.org/10.1007/s12275-023-00017-9 In this article two author names are given erroneaously: Written incorrectly: Ki Hyung Park · Shin Nam Yoo It should be read: Ki Hyeong Park · Shinnam Yoo

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