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, 47 (1), 12-19
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Diversity of Aspergillus, Penicillium, and Talaromyces Species Isolated From Freshwater Environments in Korea

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Diversity of Aspergillus, Penicillium, and Talaromyces Species Isolated From Freshwater Environments in Korea

Inbeom Heo et al. Mycobiology.

Abstract

In order to elucidate the fungal diversity and community structure in freshwater environments, numerous fungal strains were isolated from freshwater, submerged soils, twigs, dead insects, etc. Among them, the present study has focused specifically on Aspergillus, Penicillium, and Talaromyces species, which produce diverse useful metabolites in general. Twelve strains of Aspergillus isolated were identified as A. japonicus (n = 5), A. tubingensis (3), A. niger (2), and A. flavus (2), 10 strains of which belong to Aspergillus section Nigri, named black Aspergillus. Eight strains of Penicillium were identified as P. brasilianim (n = 3), P. oxalicum (2), P. crustosum (1), P. expansum (1), and P. piscarium (1). Two different strains of Talaromyces were identified as T. pinophilus and T. versatilis. Thus far, Penicillium piscarium and Talaromyces versatilis have been unrecorded in Korea, for which we provide detailed morphological and molecular characteristics.

Keywords: Aspergillus; Korea; Penicillium piscarium; Talaromyces versatilis; freshwater fungi.

Figures

Figure 1.
Figure 1.
Phylogenetic tree depicting taxonomic position of Aspergillus species isolated from freshwater environment based on a concatenate alignment of ITS and BenA sequences. For the comparison of the isolated strains with the type strains, barcode sequences were obtained from Samson et al. [3].
Figure 2.
Figure 2.
Phylogenetic tree depicting taxonomic position of Penicillium species isolated from freshwater environment based on a concatenate alignment of ITS and BenA sequences. Type strains of all species in Penicillium section Lanata-Divaricata were obtained from Visagie et al. [12].
Figure 3.
Figure 3.
Phylogenetic tree depicting taxonomic position of Talaromyces species isolated from freshwater environment based on a concatenate alignment of ITS and BenA sequences. Type strains of all species in Talaromyces section Talaromyces were obtained from Yilmaz et al. [6].
Figure 4.
Figure 4.
Morphological characteristics of Penicillium piscarium KACC 48329. (A–C) Colonies on CYA (A), MEA (B) and DG18 (C) after 7 days growth, (D, E, F) penicilli, (G) conidia (scale bar = 10 µm).
Figure 5.
Figure 5.
Morphological characteristics of Talaromyces versatilis KACC 48328. (A–C) Colonies on CYA (A), MEA (B), and DG18 (C) after 7 days growth, (D, E, F) penicilli, (G) conidia (scale bar = 10 µm).

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References

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Grant support

This study was carried out with the support of project no. PJ01354902 of the National Institute of Agricultural Science, Rural Development Administration, and a grant from the National Institute of Biological Resources (NIBR), funded by of the Ministry of Environment (MOE), Republic of Korea.

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