Mycobiology

The Korean Society of Mycology (한국균학회)
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Fungal Clusters and Their Uniqueness in Geographically Segregated Wetlands: A Step Forward to Marsh Conservation for a Wealth of Future Fungal Resources

  • Park, Jong Myong (Water Quality Research Institute, Waterworks Headquarters Incheon Metropolitan City) ;
  • Hong, Ji Won (Department of Hydrogen and Renewable Energy, Kyungpook National University) ;
  • Lee, Woong (Research Institute for Dok-do and Ulleung-do Island, Kyungpook National University) ;
  • Lee, Byoung-Hee (Biological and Genetic Resources Assessment Division, National Institute of Biological Resources) ;
  • You, Young-Hyun (Microorganism Resources Division, National Institute of Biological Resources)
  • Received : 2019.10.24
  • Accepted : 2020.07.01
  • Published : 2020.10.31
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Abstract

Here, we investigated fungal microbiota in the understory root layer of representative well-conserved geographically segregated natural wetlands in the Korean Peninsula. We obtained 574,143 quality fungal sequences in total from soil samples in three wetlands, which were classified into 563 operational taxonomic units (OTU), 5 phyla, 84 genera. Soil texture, total nitrogen, organic carbon, pH, and electrical conductivity of soil were variable between geographical sites. We found significant differences in fungal phyla distribution and ratio, as well as genera variation and richness between the wetlands. Diversity was greater in the Jangdo islands wetland than in the other sites (Chao richness/Shannon/Simpson's for wetland of the Jangdo islands: 283/6.45/0.97 > wetland of the Mt. Gariwang primeval forest: 169/1.17/0.22 > wetland of the Hanbando geology: 145/4.85/0.91), and this variance corresponded to the confirmed number of fungal genera or OTUs (wetlands of Jangdo islands: 42/283> of Mt. Gariwang primeval forest: 32/169> of the Hanbando geology: 25/145). To assess the uniqueness of the understory root layer fungus taxa, we analyzed fungal genera distribution. We found that the percentage of fungal genera common to two or three wetland sites was relatively low at 32.3%, while fungal genera unique to each wetland site was 67.7% of the total number of identified fungal species. The Jangdo island wetland had higher fungal diversity than did the other sites and showed the highest level of uniqueness among fungal genera (Is. Jangdo wetland: 34.5% > wetland of Mt. Gariwang primeval forest: 28.6% > wetland of the Hanbando geology: 16.7%).

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References

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