|
2
|
Kang H, Sohn HJ, Seo GE, Seong GS, Ham AJ, Park AY, Jung SY, Lee SE, Cho SH, Shin HJ. Molecular detection of free-living amoebae from Namhangang (southern Han River) in Korea. Sci Rep 2020; 10:335. [PMID: 31942007 PMCID: PMC6962209 DOI: 10.1038/s41598-019-57347-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 12/20/2019] [Indexed: 11/19/2022] Open
Abstract
The free-living amoebae Naegleria spp. and Acanthamoeba spp. exist in the natural environment and are sometimes causal agents of lethal primary amoebic meningoencephalitis (PAM), amoebic keratitis (AK) and granulomatous amebic encephalitis (GAE) in humans, respectively. To ascertain the existence of free-living amoebae in Korea, water samples were collected from the Korean hydrosphere, Namhangang (southern Han River), an active location for water skiing and recreation. Samples underwent two-step filtration and were cultured on non-nutrient agar medium with inactivated E. coli. The remaining samples were subjected to PCR for primarily the 18S small ribosomal RNA gene and gene sequencing. Similarities in 18S rDNA sequences, in comparison with various reference amoebae in GenBank, showed 86~99% homology with N. gruberi, N. philippinensis, N. clarki, A. polyphaga, A. castellannii, and Hartmannella (Vermamoeba) vermiformis. Therefore, this study will be useful for seasonal detection of free-living amoebae from various Korean hydrospheres in future studies.
Collapse
Affiliation(s)
- Heekyoung Kang
- Department of Microbiology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea.,Department of Biomedical Science, Graduate School of Ajou University, Suwon, 16499, Republic of Korea
| | - Hae-Jin Sohn
- Department of Microbiology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea.,Department of Biomedical Science, Graduate School of Ajou University, Suwon, 16499, Republic of Korea
| | - Ga-Eun Seo
- Department of Microbiology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea.,Department of Biomedical Science, Graduate School of Ajou University, Suwon, 16499, Republic of Korea
| | - Gi-Sang Seong
- Department of Microbiology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea.,Department of Biomedical Science, Graduate School of Ajou University, Suwon, 16499, Republic of Korea
| | - A-Jeong Ham
- Department of Microbiology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea.,Department of Biomedical Science, Graduate School of Ajou University, Suwon, 16499, Republic of Korea
| | - A-Young Park
- Department of Microbiology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea
| | - Suk-Yul Jung
- Department of Biomedical Laboratory Science, Molecular Diagnostics Research Institute, School of Health and Medicine, Namseoul University, Cheonan, 31020, Republic of Korea
| | - Sang-Eun Lee
- Division of Vectors and Parasitic Diseases, Korea Centers for Diseases Control and Prevention, Osong, 363-951, Republic of Korea
| | - Shin-Hyeong Cho
- Division of Vectors and Parasitic Diseases, Korea Centers for Diseases Control and Prevention, Osong, 363-951, Republic of Korea
| | - Ho-Joon Shin
- Department of Microbiology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea. .,Department of Biomedical Science, Graduate School of Ajou University, Suwon, 16499, Republic of Korea.
| |
Collapse
|