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Deok-Chun Yang 4 Articles
Lysobacter panacihumi sp. nov., isolated from ginseng cultivated soil
Yue Huo , Jong-Pyo Kang , Joon Hurh , Yaxi Han , Jong-Chan Ahn , Ramya Mathiyalagan , Chunhong Piao , Deok-Chun Yang
J. Microbiol. 2018;56(10):748-752.   Published online September 28, 2018
DOI: https://doi.org/10.1007/s12275-018-8202-4
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AbstractAbstract
A Gram-negative, non-motile, aerobic, catalase-, and oxidasepositive bacterial strain, designated DCY117T, was isolated from ginseng cultivated soil in Gochang-gun, Republic of Korea, and was characterized taxonomically using a multifaceted approach. 16S rRNA gene sequence analysis revealed that strain DCY117T showed highest similarity to Lysobacter ruishenii CTN-1T (95.3%). Phylogenetic analysis revealed that closely related relatives of strain DCY117T were L. aestuarii S2-CT (95.1%), L. daejeonensis GH1-9T (95.0%), and L. caeni BUT-8T (94.9%). Diphosphatidylglycerol (DPG), phosphatidylglycerol (PG), and phosphatidylethanolamine (PE) were the major polar lipids of strain DCY117T. The major isoprenoid quinone was Q-8. The major cellular fatty acids of strain DCY117T were iso-C15:0, iso-C16:0, and summed feature 9 (comprising iso-C17:1 ω9c and/or 10-methyl-C16:0). Genomic DNA G + C content was 61.8 mol%. On the basis of our findings, strain DCY117T is a novel species in the genus Lysobacter. We propose the name Lysobacter panacihumi sp. nov., and the type strain is DCY117T (= KCTC 62019T = JCM 32168T).

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  • Lysobacter ciconiae sp. nov., and Lysobacter avium sp. nov., isolated from the faeces of an Oriental stork
    So-Yeon Lee, Pil Soo Kim, Hojun Sung, Dong-Wook Hyun, Jin-Woo Bae
    Journal of Microbiology.2022; 60(5): 469.     CrossRef
  • Lysobacter arenosi sp. nov. and Lysobacter solisilvae sp. nov. isolated from soil
    Kyeong Ryeol Kim, Kyung Hyun Kim, Shehzad Abid Khan, Hyung Min Kim, Dong Min Han, Che Ok Jeon
    Journal of Microbiology.2021; 59(8): 709.     CrossRef
  • Valid publication of new names and new combinations effectively published outside the IJSEM
    Aharon Oren, George M. Garrity
    International Journal of Systematic and Evolutionary Microbiology .2021;[Epub]     CrossRef
Rhodoferax koreense sp. nov, an obligately aerobic bacterium within the family Comamonadaceae, and emended description of the genus Rhodoferax
Mohamed El-Agamy Farh , Yeon-Ju Kim , Priyanka Singh , Sun Young Jung , Jong-Pyo Kang , Deok-Chun Yang
J. Microbiol. 2017;55(10):767-774.   Published online September 28, 2017
DOI: https://doi.org/10.1007/s12275-017-7033-z
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AbstractAbstract
Gram-staining-negative, uniflagellated, rod-shaped, designated as DCY110T, was isolated from sludge located in Gangwon province, Republic of Korea. The phylogenetic tree of 16S rRNA gene sequence showed that the strain DCY110T belonged to the genus Rhodoferax with a close similarity to Rhodoferax saidenbachensis DSM 22694T (97.7%), Rhodoferax antarcticus DSM 24876T (97.5%), Rhodoferax ferrireducens DSM 15236T (97.3%), and Rhodoferax fermentans JCM 7819T (96.7%). The predominant isoprenoid quinine was ubiquinone (Q-8). DNA G + C content was 62.8 mol%. The major polar lipids were phosphatidylethanolamine and two unidentified phospholipids. The major fatty acids (> 10%) were C12:0, C16:0, summed feature 3 (which comprised C16:1 ω7c and/or C16:1 ω6c). The DNA-DNA relatedness values between the strain DCY110T and the closely related relatives used in this study were lower than 70%. Based on the following polyphasic analysis, the strain DCY110T is considered as a novel species of the genus Rhodoferax, for which the name Rhodoferax koreense sp. nov. is proposed. The type strain is DCY- 110T (= KCTC 52288T = JCM 31441T).

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  • Diversity and physiology of abundant Rhodoferax species in global wastewater treatment systems
    Jette F. Petersen, Laura C. Valk, Maarten D. Verhoeven, Marta A. Nierychlo, Caitlin M. Singleton, Morten K.D. Dueholm, Per H. Nielsen
    Systematic and Applied Microbiology.2025; 48(1): 126574.     CrossRef
  • Rhodoferax lithotrophicus sp. nov., a neutrophilic iron-oxidizing and -reducing bacterium isolated from iron-rich freshwater sediments
    Shingo Kato, Takashi Itoh, Takao Iino, Mitsuo Sakamoto, Moriya Ohkuma
    International Journal of Systematic and Evolutionary Microbiology .2024;[Epub]     CrossRef
  • Temperature-driven shifts in bacterioplankton biodiversity: Implications for cold-preferred species in warming Tibetan proglacial lakes
    Keshao Liu, Yongqin Liu, Qi Yan, Xuezi Guo, Wenqiang Wang, Zhihao Zhang, Anyi Hu, Xiong Xiao, Mukan Ji, Pengfei Liu
    Water Research.2024; 265: 122263.     CrossRef
  • A small step to discover candidate biological control agents from preexisting bioresources by using novel nonribosomal peptide synthetases hidden in activated sludge metagenomes
    Shun Tomita, Kyohei Kuroda, Takashi Narihiro, Laila Adel Ziko
    PLOS ONE.2023; 18(11): e0294843.     CrossRef
  • In the right place, at the right time: the integration of bacteria into the Plankton Ecology Group model
    Hongjae Park, Tanja Shabarova, Michaela M. Salcher, Lenka Kosová, Pavel Rychtecký, Indranil Mukherjee, Karel Šimek, Petr Porcal, Jaromír Seďa, Petr Znachor, Vojtěch Kasalický
    Microbiome.2023;[Epub]     CrossRef
  • Bacterial adaptation to cold: Conservation of a short J‐domain co‐chaperone and its protein partners in environmental proteobacteria
    Lana Weber, Atar Gilat, Nathanael Maillot, Deborah Byrne, Pascal Arnoux, Marie‐Thérèse Giudici‐Orticoni, Vincent Méjean, Marianne Ilbert, Olivier Genest, Rina Rosenzweig, Sébastien Dementin
    Environmental Microbiology.2023; 25(11): 2447.     CrossRef
  • Changes in Bacterial Community Structure in Reservoir Sediments before and after the Flood Season
    Xianting He, Min Chen, Luxin Zhou, Wenyan He, Ning Liao, Youcai Tuo
    Diversity.2023; 15(9): 946.     CrossRef
  • Unraveling microbial community by next-generation sequencing in living membrane bioreactors for wastewater treatment
    Carlo Cabreros, Mary Vermi Aizza Corpuz, Fabiano Castrogiovanni, Laura Borea, Anna Sandionigi, Giovanni Vigliotta, Florencio Ballesteros, Sebastià Puig, Shadi W. Hasan, Gregory V. Korshin, Vincenzo Belgiorno, Antonio Buonerba, Vincenzo Naddeo
    Science of The Total Environment.2023; 886: 163965.     CrossRef
  • Complete genome sequence of Rhodoferax sp. PAMC 29310 from a marine sediment of the East Siberian Sea
    Yung Mi Lee, Yerin Park, Heesoo Kim, Seung Chul Shin
    Marine Genomics.2022; 62: 100891.     CrossRef
  • Complete Genome Sequence of Rhodoferax sp. Strain BAB1, Isolated after Filter Sterilization of Tap Water
    Philipp Aurass, Antje Flieger, J. Cameron Thrash
    Microbiology Resource Announcements.2020;[Epub]     CrossRef
  • Genomic insights into a novel species Rhodoferax aquaticus sp. nov., isolated from freshwater
    Taihua Li, Ye Zhuo, Chun-Zhi Jin, Xuewen Wu, So-Ra Ko, Feng-Jie Jin, Chi-Yong Ahn, Hee-Mock Oh, Hyung-Gwan Lee, Long Jin
    International Journal of Systematic and Evolutionary Microbiology .2020; 70(8): 4653.     CrossRef
  • Genomic and Metabolic Insights into Denitrification, Sulfur Oxidation, and Multidrug Efflux Pump Mechanisms in the Bacterium Rhodoferax sediminis sp. nov.
    Chun-Zhi Jin, Ye Zhuo, Xuewen Wu, So-Ra Ko, Taihua Li, Feng-Jie Jin, Chi-Yong Ahn, Hee-Mock Oh, Hyung-Gwan Lee, Long Jin
    Microorganisms.2020; 8(2): 262.     CrossRef
  • Rhodoferax lacus sp. nov., isolated from a large freshwater lake
    Miri Park, Jaeho Song, Gi Gyun Nam, Jang-Cheon Cho
    International Journal of Systematic and Evolutionary Microbiology .2019; 69(10): 3135.     CrossRef
  • Rhodoferax bucti sp. nov., isolated from fresh water
    De Zhou, Xu Tan, Wei Zhang, Han-Yi Chen, Qiu-Ming Fan, Xian-Lin He, Jie Lv
    International Journal of Systematic and Evolutionary Microbiology .2019; 69(12): 3903.     CrossRef
  • Notification of changes in taxonomic opinion previously published outside the IJSEM
    Aharon Oren, George M. Garrity
    International Journal of Systematic and Evolutionary Microbiology .2018; 68(1): 7.     CrossRef
Achromobacter panacis sp. nov., isolated from rhizosphere of Panax ginseng
Priyanka Singh , Yeon Ju Kim , Hina Singh , Mohamed El-Agamy Farh , Deok-Chun Yang
J. Microbiol. 2017;55(6):428-434.   Published online May 28, 2017
DOI: https://doi.org/10.1007/s12275-017-6612-3
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AbstractAbstract
A novel strain DCY105T was isolated from soil collected from the rhizosphere of ginseng (Panax ginseng), in Gochang, Re-public of Korea. Strain DCY105T is Gram-reaction-negative, white, non-motile, non-flagellate, rod-shaped and aerobic. The bacteria grow optimally at 30°C, pH 6.5–7.0 and in the absence of NaCl. Phylogenetically, strain DCY105T is most closely related to Achromobacter marplatensis LMG 26219T (96.81%). The DNA G+C content of strain DCY105T was 64.4 mol%. Ubiquinone 8 was the major respiratory quinone, and phosphatidylethanolamine, phosphatidylglycerol, and dipho-sphatidylglycerol were amongst the major polar lipids. C16:00, C8:03OH and iso-C17:03OH were identified as the major fatty acids present in DCY105T. The results of physiological and biochemical tests allowed strain DCY105T to be differentiated phenotypically from other recognized species belonging to the genus Achromobacter. Therefore, it is suggested that the newly isolated organism represents a novel species, for which the name Achromobacter panacis sp. nov. is proposed with the type strain designated as DCY105T (=CCTCCAB 2015193T =KCTC 42751T).

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  • Zwartia vadi sp. nov., a Novel Species of the GKS98 Cluster Isolated from a Stream, and the Reclassification of ‘Achromobacter Panacis’ as Zwartia panacis comb. nov
    Miri S. Park, Ilnam Kang, Jang-Cheon Cho
    Microorganisms.2023; 11(9): 2150.     CrossRef
  • Achromobacter spp. prevalence and adaptation in cystic fibrosis lung infection
    Laura Veschetti, Marzia Boaretti, Giulia Maria Saitta, Rebeca Passarelli Mantovani, Maria M. Lleò, Angela Sandri, Giovanni Malerba
    Microbiological Research.2022; 263: 127140.     CrossRef
  • Zwartia hollandica gen. nov., sp. nov., Jezberella montanilacus gen. nov., sp. nov. and Sheuella amnicola gen. nov., comb. nov., representing the environmental GKS98 (betIII) cluster
    Martin W. Hahn, Alexandra Pitt, Johanna Schmidt, Ulrike Koll, Jacqueline Wolf, William B. Whitman, Paul L. E. Bodelier, Meina Neumann-Schaal
    International Journal of Systematic and Evolutionary Microbiology .2022;[Epub]     CrossRef
  • Strong Antimicrobial Activity of Silver Nanoparticles Obtained by the Green Synthesis in Viridibacillus sp. Extracts
    Priyanka Singh, Ivan Mijakovic
    Frontiers in Microbiology.2022;[Epub]     CrossRef
  • Silver nanoparticles produced from Cedecea sp. exhibit antibiofilm activity and remarkable stability
    Priyanka Singh, Santosh Pandit, Carsten Jers, Abhayraj S. Joshi, Jørgen Garnæs, Ivan Mijakovic
    Scientific Reports.2021;[Epub]     CrossRef
  • A Sustainable Approach for the Green Synthesis of Silver Nanoparticles from Solibacillus isronensis sp. and Their Application in Biofilm Inhibition
    Priyanka Singh, Santosh Pandit, VRSS Mokkapati, Jørgen Garnæs, Ivan Mijakovic
    Molecules.2020; 25(12): 2783.     CrossRef
  • Emerging Gram-negative bacteria
    Heather Green, Andrew M. Jones
    Current Opinion in Pulmonary Medicine.2018; 24(6): 592.     CrossRef
Microbial Conversion of Major Ginsenoside Rb1 to Pharmaceutically Active Minor Ginsenoside Rd
Myung Kyum Kim , Jun Won Lee , Ki Young Lee , Deok-Chun Yang
J. Microbiol. 2005;43(5):456-462.
DOI: https://doi.org/2275 [pii]
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AbstractAbstract
More than seventy strains of aerobic bacteria showing [beta]-glucosidase activity were isolated from a ginseng field, using a newly designed Esculin-R2A agar, and identified by their 16S rRNA gene sequences. Of these microorganisms, twelve strains could convert the major ginsenoside, Rb1, to the pharmaceutically active minor ginsenoside Rd. Three strains, Burkholderia pyrrocinia GP16, Bacillus megaterium GP27 and Sphingomonas echinoides GP50, were phylogenetically studied, and observed to be most potent at converting ginsenoside Rb1 almost completely within 48 h, as shown by TLC and HPLC analyses.
Deok-Chun Yang 1 Article
Upgrading Isoquercitrin Concentration via Submerge Fermentation of Mulberry Fruit Extract with Edible Probiotics to Suppress Gene Targets for Controlling Kidney Cancer and Inflammation
Md Rezaul Karim, Safia Iqbal, Shahnawaz Mohammad, Jong-Hoon Kim, Li Ling, Changbao Chen, Abdus Samad, Md Anwarul Haque, Deok-Chun Yang, Yeon Ju Kim, Dong Uk Yang
J. Microbiol. 2024;62(10):919-927.   Published online October 8, 2024
DOI: https://doi.org/10.1007/s12275-024-00163-8
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  • 2 Web of Science
  • 2 Crossref
AbstractAbstract
In recent years, kidney cancer has become one of the most serious medical issues. Kidney cancer is treated with a variety of active compounds that trigger genes that cause cancer. We identified in our earlier research that isoquercitrin (IQ) can activate PIK3CA, IGF1R, and PTGS2. However, it has a very low bioavailability because of its lower solubility in water. So, we utilized sub-merge fermentation technology with two well-known probiotics, Lactobacillus acidophilus and Bacillus subtilis, as a microbial source and mulberry fruit extract as a substrate, which has a high IQ level to improve IQ yield. Furthermore, we compared the total phenolic, flavonoid, and antioxidant contents of fermented and non-fermented samples, and we found that the fermented samples had greater levels than non-fermented sample. In addition, the high-performance liquid chromatography (HPLC) results showed that the fermented mulberry fruit extract from B. subtilis and L. acidophilus showed higher IQ values (190.73 ± 0.004 μg/ml and 220.54 ± 0.007 μg/ml, respectively), compared to the non-fermented samples, which had IQ values (80.12 ± 0.002 μg/ml). Additionally, at 62.5 µg/ml doses of each sample, a normal kidney cell line (HEK 293) showed higher cell viability for fermented and non-fermented samples. Conversely, at the same doses, the fermented samples of L. acidophilus and B. subtilis in a kidney cancer cell line (A498) showed an inhibition of cell growth around 36% and 31%, respectively. Finally, we performed RT and qRT PCR assay, and we found a significant reduction in the expression of the PTGS2, PIK3CA, and IGF1R genes. We therefore can conclude that the fermented samples have a higher concentration of isoquercitrin, and also can inhibit the expression of the genes PTGS2, PIK3CA, and IGF1R, which in turn regulates kidney cancer and inflammation.

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  • Recent research on the bioactivity of polyphenols derived from edible fungi and their potential in chronic disease prevention
    Wenbin Yu, Yufei Zhang, Yi Lu, Zhiwei Ouyang, Jiahua Peng, Yayi Tu, Bin He
    Journal of Functional Foods.2025; 124: 106627.     CrossRef
  • Protective roles of genistein and icaritin in skin barrier integrity and hydration in an atopic dermatitis model
    Shahnawaz Mohammad, Anjali Kariyarath Valappil, Md. Rezaul Karim, Safia Iqbal, Deok Chun Yang, Changbao Chen, Li Ling, Dong Uk Yang
    European Journal of Integrative Medicine.2025; : 102483.     CrossRef

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