- Lysobacter panacihumi sp. nov., isolated from ginseng cultivated soil
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Yue Huo , Jong-Pyo Kang , Joon Hurh , Yaxi Han , Jong-Chan Ahn , Ramya Mathiyalagan , Chunhong Piao , Deok-Chun Yang
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J. Microbiol. 2018;56(10):748-752. Published online September 28, 2018
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DOI: https://doi.org/10.1007/s12275-018-8202-4
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Abstract
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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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Citations
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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
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Mohamed El-Agamy Farh , Yeon-Ju Kim , Priyanka Singh , Sun Young Jung , Jong-Pyo Kang , Deok-Chun Yang
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J. Microbiol. 2017;55(10):767-774. Published online September 28, 2017
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DOI: https://doi.org/10.1007/s12275-017-7033-z
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Abstract
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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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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
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Aharon Oren, George M. Garrity
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- Achromobacter panacis sp. nov., isolated from rhizosphere of Panax ginseng
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Priyanka Singh , Yeon Ju Kim , Hina Singh , Mohamed El-Agamy Farh , Deok-Chun Yang
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J. Microbiol. 2017;55(6):428-434. Published online May 28, 2017
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DOI: https://doi.org/10.1007/s12275-017-6612-3
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Abstract
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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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- Microbial Conversion of Major Ginsenoside Rb1 to Pharmaceutically Active Minor Ginsenoside Rd
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Myung Kyum Kim , Jun Won Lee , Ki Young Lee , Deok-Chun Yang
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J. Microbiol. 2005;43(5):456-462.
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DOI: https://doi.org/2275 [pii]
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Abstract
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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.
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