Journal of Microbiology

Hyen-Mi Chung

2 Articles

Nocardioides suum sp. nov. isolated from the air environment in an indoor pig farm: Siwon Lee , Wonseok Lee , Hyen-Mi Chung , Sangjung Park; J. Microbiol. 2017;55(6):417-420. Published online April 20, 2017; DOI: https://doi.org/10.1007/s12275-017-6313-y

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A bacterial strain PBT33-2T was isolated from the air environ-ment in an indoor pig farm. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain PBT33-2T be-longed to the genus Nocardioides in the phylum Actinobac-teria, and was most closely related to Nocardioides daphnia D287T in a maximum-likelihood and neighbor-joining phy-logenetic trees. Strain PBT33-2T shared 95.3% sequence iden-tity with N. daphnia D287T. However, the highest sequence similarity was shown with N. sediminis MSL-01T (96.0%). It had less than 96.0% sequence identities with other type spe-cies of the genus Nocardioides. Strain PBT-33-2T grew at 15–45°C (optimum 20–35°C), pH 5.0–11.0 (optimum pH 7.0) and 0–4.0% (w/v) NaCl (optimum 0%). The major fatty acid and quinone were iso-C16:0 and MK-8, and the DNA G+C content of strain PBT33-2T was 69.3 mol%. On the basis of poly-phasic results, strain PBT33-2T represents a novel spe-cies of the genus Nocardioides, for which the name Nocar-dioides suum sp. nov. is proposed. Its type strain is PBT33-2T (=KCTC 39558T =DSM 102833T).

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Nocardioides asiaticus sp. nov. and Nocardioides pollutisoli sp. nov., isolated from oil-contaminated soil
Thi Tuyet Nhan Le, Jaisoo Kim
International Journal of Systematic and Evolutionary Microbiology .2026;[Epub] CrossRef
Validation List no. 229: valid publication of new names and new combinations effectively published outside the IJSEM
Aharon Oren, Markus Göker
International Journal of Systematic and Evolutionary Microbiology .2026;[Epub] CrossRef
Nocardioides cremeus sp. nov., Nocardioides abyssi sp. nov. and Nocardioides oceani sp. nov., three actinobacteria isolated from Western Pacific Ocean sediment
Wenjing Wang, Yihan Ding, Shiping Wei, Miaomiao Yin, Gaiyun Zhang
International Journal of Systematic and Evolutionary Microbiology .2023;[Epub] CrossRef
Nocardioides humilatus sp. nov., isolated from farmland soil in the Republic of Korea
Jong Min Lee, Chun-Zhi Jin, Min-Kyoung Kang, So Hee Park, Dong-Jin Park, Dong-Gyun Kim, Chang-Jin Kim
International Journal of Systematic and Evolutionary Microbiology .2022;[Epub] CrossRef
Description of Nocardioides piscis sp. nov., Sphingomonas piscis sp. nov. and Sphingomonas sinipercae sp. nov., isolated from the intestine of fish species Odontobutis interrupta (Korean spotted sleeper) and Siniperca scherzeri (leopard mandarin fish)
Dong-Wook Hyun, Yun-Seok Jeong, Jae-Yun Lee, Hojun Sung, So-Yeon Lee, Jee-Won Choi, Hyun Sik Kim, Pil Soo Kim, Jin-Woo Bae
Journal of Microbiology.2021; 59(6): 552. CrossRef
Nocardioides euryhalodurans sp. nov., Nocardioides seonyuensis sp. nov. and Nocardioides eburneiflavus sp. nov., isolated from soil
Su Gwon Roh, Chan Lee, Min-Kyeong Kim, Hye-Jeong Kang, Yeong Seok Kim, Min Ji Kim, Adeel Malik, Seung Bum Kim
International Journal of Systematic and Evolutionary Microbiology .2020; 70(4): 2682. CrossRef
Nocardioides speluncae sp. nov., a novel actinobacterium isolated from a karstic subterranean environment sample
Bao-Zhu Fang, Ming-Xian Han, Jian-Yu Jiao, Xiao-Tong Zhang, Yuan-Guo Xie, Wael N. Hozzein, Dalal Hussien M. Alkhalifah, Min Xiao, Wen-Jun Li
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Prevalence of avian influenza virus in wild birds before and after the HPAI H5N8 outbreak in 2014 in South Korea: Jeong-Hwa Shin , Chanjin Woo , Seung-Jun Wang , Jipseol Jeong , In-Jung An , Jong-Kyung Hwang , Seong-Deok Jo , Seung Do Yu , Kyunghee Choi , Hyen-Mi Chung , Jae-Hwa Suh , Seol-Hee Kim; J. Microbiol. 2015;53(7):475-480. Published online June 27, 2015; DOI: https://doi.org/10.1007/s12275-015-5224-z

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Abstract PDF

Since 2003, highly pathogenic avian influenza (HPAI) virus outbreaks have occurred five times in Korea, with four HPAI H5N1 outbreaks and one HPAI H5N8 outbreak. Migratory birds have been suggested to be the first source of HPAI in Korea. Here, we surveyed migratory wild birds for the presence of AI and compared regional AI prevalence in wild birds from September 2012 to April 2014 for birds having migratory pathways in South Korea. Finally, we investigated the prevalence of AI in migratory birds before and after HPAI H5N8 outbreaks. Overall, we captured 1617 migratory wild birds, while 18,817 feces samples and 74 dead birds were collected from major wild bird habitats. A total of 21 HPAI viruses were isolated from dead birds, and 86 low pathogenic AI (LPAI) viruses were isolated from captured birds and from feces samples. Spatiotemporal distribution analysis revealed that AI viruses were spread southward until December, but tended to shift north after January, consistent with the movement of migratory birds in South Korea. Furthermore, we found that LPAI virus prevalences within wild birds were notably higher in 2013?014 than the previous prevalence during the northward migration season. The data from our study demonstrate the importance of the surveillance of AI in wild birds. Future studies including in-depth genetic analysis in combination with evaluation of the movement and ecology of migratory birds might help us to bridge the gaps in our knowledge and better explain, predict, and ultimately prevent future HPAI outbreaks.

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