Journal of Microbiology

Jae-Won Lee

4 Articles

Paenibacillus albilobatus sp. nov., isolated from acidic soil on Jeju Island: Jae-Won Lee , Ye-Eun Kim , Myung-Suk Kang , Ki-Eun Lee , Eun-Young Lee , Soo-Je Park; J. Microbiol. 2018;56(6):393-398. Published online June 1, 2018; DOI: https://doi.org/10.1007/s12275-018-8158-4

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A rod-shaped, white color colony with lobate architectures, strain h2T was isolated from a moderately acidic soil on Jeju Island, Republic of Korea. Comparative analysis of the 16S rRNA gene sequence showed that the strain h2T is closely related to Paenibacillus relictisesami DSM 25385T (97.4%, 16S rRNA gene sequence similarity), Paenibacillus azoreducens KACC 11244T (97.2%), and Paenibacillus cookii LMG 18419T (97.0%). DNA-DNA hybridization indicated that the strain h2T has relatively low levels of DNA-DNA relatedness with respect to P. relictisesami DSM 25385T (10.2%) and P. azoreducens KACC 11244T (13.7%). Additionally, the genomic DNA G + C content of h2T is 51.5 mol%. The isolated strain grew at pH 4.0–9.0 (optimum, pH 6.0–7.0) and 0–5% (w/v) NaCl (optimum, 0%) and a temperature of 15–45°C (optimum 35°C). The quinones in the strain are MK-6 and MK-7, and the predominant fatty acid is C15:0 anteiso (32.1%) followed by C17:0 anteiso (26.5%), and C16:0 iso (21.0%). Based on its phenotypic properties, genotypic distinctiveness, and chemotaxonomic features, strain h2T is proposed as a novel species in the genus Paenibacillus, for which the name Paenibacillus albilobatus sp. nov. is proposed (= KCCM 43269T = JCM 32395T = LMG 30408T). The type strain of Paenibacillus albilobatus is h2T.

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Validation List no. 227: 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
Description of Paenibacillus dokdonensis sp. nov., a new bacterium isolated from soil
Jayoung Paek, Lu Bai, Yeseul Shin, Hongik Kim, Joong-Ki Kook, Young-Hyo Chang
International Journal of Systematic and Evolutionary Microbiology .2019;[Epub] CrossRef

Burkholderia alba sp. nov., isolated from a soil sample on Halla mountain in Jeju island: Jae-Won Lee , Ye-Eun Kim , Soo-Je Park; J. Microbiol. 2018;56(5):312-316. Published online May 2, 2018; DOI: https://doi.org/10.1007/s12275-018-8034-2

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A rod-shaped, round and white colony-forming strain AD18T was isolated from the soil on Halla mountain in Jeju Island, Republic of Korea. Comparative analysis of 16S rRNA gene sequence revealed that this strain was closely related to Burkholderia oklahomensis C6786T (98.8%), Burkholderia thailandensis KCTC 23190T (98.5%). DNA-DNA relatedness (14.6%) indicated that the strain AD18T represents a distinct species that is separate from B. oklahomensis C6786T. The isolate grew at pH 5.0–9.0 (optimum, pH 7.0), 0–3% (w/v) NaCl (optimum, 0%), and temperature 10–40°C (optimum 35°C). The sole quinone of the strain was Q-8, and the predominant fatty acids were C16:0, C17:0 cyclo, and C19:0 cyclo ω8c. The genomic DNA G + C content of AD18T was 65.6 mol%. Based on these findings, strain AD18T is proposed to be a novel species in the genus Burkholderia, for which the name Burkholderia alba sp. nov. is proposed (= KCCM 43268T = JCM 32403T). The type strain is AD18T.

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Citations to this article as recorded by

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
Arbuscular Mycorrhizal Fungi in Common Bean Roots: Agricultural Impact and Environmental Influence
Ana Paula Rodiño, Olga Aguín, Juan Leonardo Tejada-Hinojoza, Antonio Miguel De Ron
Agriculture.2025; 15(13): 1452. CrossRef
Potential of Novel Sequence Type of Burkholderia cenocepacia for Biological Control of Root Rot of Maize (Zea mays L.) Caused by Fusarium temperatum
Setu Bazie Tagele, Sang Woo Kim, Hyun Gu Lee, Youn Su Lee
International Journal of Molecular Sciences.2019; 20(5): 1005. CrossRef

Biological Pretreatment of Softwood Pinus densiflora by Three White Rot Fungi: Jae-Won Lee , Ki-Seob Gwak , Jun-Yeong Park , Don-Ha Choi , Mi Kwon , In-Gyu Choi; J. Microbiol. 2007;45(6):485-491.; DOI: https://doi.org/2647 [pii]

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Abstract PDF: The effects of biological pretreatment on the Japanese red pine Pinus densiflora, was evaluated after exposure to three white rot fungi Ceriporia lacerata, Stereum hirsutum, and Polyporus brumalis. Change in chemical composition, structural modification, and their susceptibility to enzymatic saccharification in the degraded wood were analyzed. Of the three white rot fungi tested, S. hirsutum selectively degraded the lignin of this sortwood rather than the holocellulose component. After eight weeks of pretreatment with S. hirsutum, total weight loss was 10.7%, while lignin loss was the highest at 14.52% among the tested samples. However, holocellulose loss was lower at 7.81% compared to those of C. lacerata and P. brumalis. Extracelluar enzymes from S. hirsutum showed higher activity of ligninase and lower activity of cellulase than those from other white rot fungi. Thus, total weight loss and changes in chemical composition of the Japanese red pine was well correlated with the enzyme activities related with lignin- and cellulose degradation in these fungi. Based on the data obtained from analysis of physical characterization of degraded wood by X-ray Diffractometry (XRD) and pore size distribution, S. hirsutum was considered as an effective potential fungus for biological pretreatment. In particular, the increase of available pore size of over 120 nm in pretreated wood powder with S. hirsutum made enzymes accessible for further enzymatic saccharification. When Japanese red pine chips treated with S. hirsutum were enzymatically saccharified using commercial enzymes (Cellulclast 1.5 L and Novozyme 188), sugar yield was greatly increased (21.01%) compared to non-pretreated control samples, indicating that white rot fungus S. hirsutum provides an effective process in increasing sugar yield from woody biomass.

Estrogenic Reduction of Styrene Monomer Degraded by Phanerochaete chrysosporium KFRI 20742: Jae-Won Lee , Soo-Min Lee , Eui-Ju Hong , Eui-Bae Jeung , Ha-Young Kang , Myung-Kil Kim , In-Gyu Choi; J. Microbiol. 2006;44(2):177-184.; DOI: https://doi.org/2367 [pii]

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Abstract PDF: The characteristic biodegradation of monomeric styrene by Phanerochaete chrysosporium KFRI 20742, Trametes versicolor KFRI 20251 and Daldinia concentrica KFRI 40-1 was carried out to examine the resistance, its degradation efficiency and metabolites analysis. The estrogenic reduction effect of styrene by the fungi was also evaluated. The mycelium growth of fungi differentiated depending on the concentration levels of styrene. Additionally P. chrysosporium KFRI 20742 showed superior mycelium growth at less than 200 mg/l, while D. concentrica KFRI 40-1 was more than 200 mg/l. The degradation efficiency reached 99% during one day of incubation for all the fungi. Both manganese-dependent peroxidase and laccase activities in liquid medium were the highest at the initial stage of incubation, whereas the lowest was after the addition of styrene. However, both activities were gradually recovered after. The major metabolites of styrene by P. chrysosporium KFRI 20742 were 2-phenyl ethanol, benzoic acid, cyclohexadiene-1,4-dione, butanol and succinic acid. From one to seven days of incubating the fungi, the expression of pS2 mRNA widely known as an estrogen response gene was decreased down to the level of baseline after one day. Also, the estrogenic effect of styrene completely disappeared after treatment with supernatant of P. chrysosporium KFRI 20742 from one week of culture down to the levels of vehicle.

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