Journal of Microbiology

Review

Apoptotic Factors, CaNma111 and CaYbh3, Function in Candida albicans Filamentation by Regulating the Hyphal Suppressors, Nrg1 and Tup1: Suyoung Kim , Se Hyeon Kim , Eunjoong Kweon , Jinmi Kim; J. Microbiol. 2023;61(4):403-409. Published online March 27, 2023; DOI: https://doi.org/10.1007/s12275-023-00034-8

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Abstract: The morphological switch from the yeast to hyphal form is a key virulence attribute of the opportunistic fungal pathogen, Candida albicans. Our recent report showed that deletion of the newly identified apoptotic factor, CaNma111 or CaYbh3, leads to hyperfilamentation and increased virulence in a mouse infection model. CaNma111 and CaYbh3 are homologs of the pro-apoptotic protease, HtrA2/Omi, and BH3-only protein, respectively. In this study, we examined the effects of CaNMA111 and CaYBH3 deletion mutations on the expression levels of the hypha-specific transcr!ption factors, Cph1 (a hyphal activator), Nrg1 (a hyphal repressor), and Tup1 (a hyphal repressor). The protein levels of Nrg1 were decreased in Caybh3/Caybh3 cells while those of Tup1 were decreased in both Canma111/Canma111 and Caybh3/Caybh3 cells. These effects on Nrg1 and Tup1 proteins were retained during serum-induced filamentation and appear to explain the hyperfilamentation phenotypes of the CaNMA111 and CaYBH3 deletion mutants. Treatment with the apoptosis-inducing dose of farnesol decreased the Nrg1 protein levels in the wild-type strain and more evidently in Canma111/Canma111 and Caybh3/Caybh3 mutant strains. Together, our results suggest that CaNma111 and CaYbh3 are key regulators of Nrg1 and Tup1 protein levels in C. albicans.

Journal Articles

Spirosoma pomorum sp. nov., isolated from apple orchard soil: Weilan Li , Seung-Yeol Lee , In-Kyu Kang , Leonid N. Ten , Hee-Young Jung; J. Microbiol. 2018;56(2):90-96. Published online February 2, 2018; DOI: https://doi.org/10.1007/s12275-018-7430-y

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A Gram-negative, motile, rod-shaped, aerobic bacterial strain, designated S7-2-11T, was isolated from apple orchard soil from Gyeongsangnam-do Province, Republic of Korea, and was characterized taxonomically using a polyphasic approach. 16S rRNA gene sequence analysis indicated that strain S7-2- 11T belongs to the family Cytophagaceae in phylum Bacteroidetes, and is closely related to Spirosoma luteolum 16F6ET (94.2% identity), Spirosoma knui 15J8-12T (92.7%), and Spirosoma linguale DSM 74T (91.0%). The G + C content of the genomic DNA of strain S7-2-11T was 49.8 mol%. Strain S7-2-11T contained summed feature 3 (C16:1 ω7c/C16:1 ω6c; 35.1%), C16:1 ω5c (22.4%), C15:0 iso (13.9%), and C17:0 iso 3-OH (10.6%) as major cellular fatty acids, and MK-7 as the predominant respiratory quinone. The main polar lipids were phosphatidylethanolamine, an unidentified aminophospholipid, and two unidentified polar lipids. Phenotypic and chemotaxonomic data supported the affiliation of strain S7-2-11T with the genus Spirosoma. The results of physiological and biochemical tests showed the genotypic and phenotypic differentiation of the isolate from recognized Spirosoma species. On the basis of its phenotypic properties, genotypic distinctiveness, and chemotaxonomic features, strain S7-2-11T represents a novel species of the genus Spirosoma, for which the name Spirosoma pomorum sp. nov. is proposed. The type strain is S7-2-11T (= KCTC 52726T = JCM 32130T).

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Spirosoma rhododendri sp. nov., isolated from a flower of royal azalea (Rhododendron schlippenbachii)
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International Journal of Systematic and Evolutionary Microbiology .2022;[Epub] CrossRef
Barks from avocado trees of different geographic locations have consistent microbial communities
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Spirosoma endbachense sp. nov., isolated from a natural salt meadow
Julian Rojas, Binoy Ambika Manirajan, Stefan Ratering, Christian Suarez, Rita Geissler-Plaum, Sylvia Schnell
International Journal of Systematic and Evolutionary Microbiology .2021;[Epub] CrossRef
Draft Genome Sequences of Spirosoma agri KCTC 52727 and Spirosoma terrae KCTC 52035
Julian Rojas, Binoy Ambika Manirajan, Stefan Ratering, Christian Suarez, Sylvia Schnell, David Rasko
Microbiology Resource Announcements.2020;[Epub] CrossRef
Spirosoma telluris sp. nov. and Spirosoma arboris sp. nov. isolated from soil and tree bark, respectively
Heeyoung Kang, Inseong Cha, Haneul Kim, Kiseong Joh
International Journal of Systematic and Evolutionary Microbiology .2020; 70(10): 5355. CrossRef
Spirosoma sordidisoli sp. nov., a propanil-degrading bacterium isolated from a herbicide-contaminated soil
Long Zhang, Xi-Yi Zhou, Xiao-Jing Su, Qiang Hu, Jian-Dong Jiang
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Spirosoma utsteinense sp. nov. isolated from Antarctic ice-free soils from the Utsteinen region, East Antarctica
Guillaume Tahon, Liesbeth Lebbe, Anne Willems
International Journal of Systematic and Evolutionary Microbiology .2019;[Epub] CrossRef
List of new names and new combinations previously effectively, but not validly, published
Aharon Oren, George M. Garrity
International Journal of Systematic and Evolutionary Microbiology .2018; 68(7): 2130. CrossRef

Spirosoma migulaei sp. nov., isolated from soil: Joseph Okiria , Leonid N. Ten , Su-Jin Park , Seung-Yeol Lee , Dong Hoon Lee , In-Kyu Kang , Dae Sung Lee , Hee-Young Jung; J. Microbiol. 2017;55(12):927-932. Published online December 7, 2017; DOI: https://doi.org/10.1007/s12275-017-7377-4

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Abstract

A Gram-stain-negative, non-motile, non-spore-forming, rodshaped, aerobic bacterium, designated 15J9-8T, was isolated from soil on Jeju Island, Republic of Korea. The isolate was able to grow between 10 and 30°C, pH 6.5–8.5, and in presence of 0–1% (w/v) NaCl. The results of comparative 16S rRNA gene sequence analysis indicated that strain 15J9-8T represented a member of the family Cytophagaceae, phylum Bacteroidetes, and was most closely related to Spirosoma aerophilum 5516J-17T (96.1% similarity), Spirosoma pulveris JSH5-14T (95.6%), and Spirosoma linguale DSM 74T (95.2%). The G + C content of the genomic DNA of the isolate was 47.0 mol%. Strain 15J9-8T contained summed feature 3 (C16:1 ω7c/C16:1 ω6c), C16:1 ω5c, and iso-C15:0 as the major fatty acids, phosphatidylethanolamine and an unidentified aminophospholipid as the main polar lipids, and menaquinone MK-7 as the predominant respiratory quinone. On the basis of its phenotypic and genotypic properties, and phylogenetic distinctiveness, strain 15J9-8T should be classified as a representative of a novel species of the genus Spirosoma, for which the name Spirosoma migulaei sp. nov. is proposed. The type strain is 15J9-8T (=KCTC 52028T =JCM 31996T).

Citations

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Isolation of Spirosoma foliorum sp. nov. from the fallen leaf of Acer palmatum by a novel cultivation technique
Ho Le Han, Dian Alfian Nurcahyanto, Neak Muhammad, Yong-Jae Lee, Tra T. H. Nguyen, Song-Gun Kim, Sook Sin Chan, Kuan Shiong Khoo, Kit Wayne Chew, Pau Loke Show, Thi Ngoc Thu Tran, Thi Dong Phuong Nguyen, Chen Yaw Chiu
Scientific Reports.2023;[Epub] CrossRef
Spirosoma rhododendri sp. nov., isolated from a flower of royal azalea (Rhododendron schlippenbachii)
Miyoung Won, Seung-Beom Hong, Byeong-Hak Han, Soon-Wo Kwon
International Journal of Systematic and Evolutionary Microbiology .2022;[Epub] CrossRef
Fibrivirga algicola gen. nov., sp. nov., an algicidal bacterium isolated from a freshwater river
Sanghwa Park, Ja Young Cho, Dong-Hyun Jung, Seok Won Jang, Jung Hye Eom, Seung Won Nam, Dae Ryul Kwon, Jaewon Ryu, Keug Tae Kim
Antonie van Leeuwenhoek.2022; 115(7): 899. CrossRef
Spirosoma telluris sp. nov. and Spirosoma arboris sp. nov. isolated from soil and tree bark, respectively
Heeyoung Kang, Inseong Cha, Haneul Kim, Kiseong Joh
International Journal of Systematic and Evolutionary Microbiology .2020; 70(10): 5355. CrossRef
Complete Genome Sequence of Spirosoma sp. Strain KCTC 42546, Isolated from a Reservoir in South Korea
Pokchut Kusolkumbot, Song-Gun Kim, Chatrudee Suwannachart, Kenneth M. Stedman
Microbiology Resource Announcements.2020;[Epub] CrossRef
Spirosoma sordidisoli sp. nov., a propanil-degrading bacterium isolated from a herbicide-contaminated soil
Long Zhang, Xi-Yi Zhou, Xiao-Jing Su, Qiang Hu, Jian-Dong Jiang
Antonie van Leeuwenhoek.2019; 112(10): 1523. CrossRef
Spirosoma utsteinense sp. nov. isolated from Antarctic ice-free soils from the Utsteinen region, East Antarctica
Guillaume Tahon, Liesbeth Lebbe, Anne Willems
International Journal of Systematic and Evolutionary Microbiology .2019;[Epub] CrossRef
List of new names and new combinations previously effectively, but not validly, published
Aharon Oren, George Garrity
International Journal of Systematic and Evolutionary Microbiology.2018; 68(5): 1411. CrossRef

Spirosoma flavus sp. nov., a novel bacterium from soil of Jeju Island: Nabil Elderiny , Seung-Yeol Lee , Sangkyu Park , In-Kyu Kang , Myung Kyum Kim , Dae Sung Lee , Leonid N. Ten , Hee-Young Jung; J. Microbiol. 2017;55(11):850-855. Published online October 27, 2017; DOI: https://doi.org/10.1007/s12275-017-7360-0

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Abstract

A novel, Gram-staining negative, yellow pigmented bacterial strain, designated 15J11-2T, was isolated from soil sample on Jeju Island, Republic of Korea. The strain was subjected to a taxonomic study using a polyphasic approach. The strain was able to grow at temperature range from 10°C to 30°C, pH 7–8, and in presence of 0–1% (w/v) NaCl. Comparative 16S rRNA gene sequence analysis showed that strain 15J11-2T belongs to the genus Spirosoma and levels of 16S rRNA gene sequence similarity ranged from 91.5% to 89.8%. The genomic DNA G + C content of strain 15J11-2T was 46.0 mol%. The isolate contained phosphatidylethanolamine and an unidentified aminophospholipid as the main polar lipids, menaquinone MK-7 as the predominant respiratory quinone, and summed feature 3 (C16:1 ω6c/C16:1 ω7c; 39.4%), C16:1 ω5c (27.1%), and C16:0 (13.0%) as the major fatty acids, which supported the affiliation of strain 15J11-2T to the genus Spirosoma. The results of physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain 15J11-2T from recognized Spirosoma species. On the basis of its phenotypic properties, genotypic distinctiveness, chemotaxonomic features, strain 15J11-2T represents a novel species of the genus Spirosoma, for which the name Spirosoma flavus sp. nov. is proposed. The type strain is 15J11-2T (= KCTC 52026T = JCM 31998T).

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Spirosoma profusum sp. nov., and Spirosoma validum sp. nov., radiation-resistant bacteria isolated from soil in South Korea
Yuna Park, Soohyun Maeng, Tuvshinzaya Damdintogtokh, Jing Zhang, Min-Kyu Kim, Sathiyaraj Srinivasan, Myung Kyum Kim
Antonie van Leeuwenhoek.2021; 114(7): 1155. CrossRef

Spirosoma lituiforme sp. nov., isolated from soil: Weilan Li , Seung-Yeol Lee , Sangkyu Park , Byung-Oh Kim , Leonid N. Ten , Hee-Young Jung; J. Microbiol. 2017;55(11):856-861. Published online October 27, 2017; DOI: https://doi.org/10.1007/s12275-017-7255-0

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Abstract

A Gram-staining-negative, non-motile, curved rod-shaped, aerobic bacterium, designated S1-2-4T, was isolated from soil in Jeollabuk-do province, Republic of Korea, and was characterized taxonomically using a polyphasic approach. Comparative 16S rRNA gene sequence analysis showed that strain S1-2-4T was a member of the family Cytophagaceae and most closely related to ‘Spirosoma radiotolerans’ DG5A (97.2%), Spirosoma fluviale MSd3T (96.4%), and Spirosoma linguale DSM 74T (96.3%). The genomic DNA G + C content of strain S1-2-4T was 49.7 mol%. The major fatty acids were summed feature 3 (C16:1 ω7c/C16:1 ω6c), C16:1 ω5c, and C16:0, and the major polar lipid was phosphatidylethanolamine. MK-7 was the predominant respiratory quinone. Phenotypic and chemotaxonomic data supported the affiliation of strain S1-2-4T with the genus Spirosoma. DNA-DNA hybridization between strain S1-2-4T and ‘Spirosoma radiotolerans’ showed relatively low DNA-DNA relatedness (31%). Strain S1-2-4T could be distinguished from its closest phylogenetic neighbors based on its phenotypic, genotypic, and chemotaxonomic features. Therefore, strain S1-2-4T represents a novel member of the genus Spirosoma, for which the name Spirosoma lituiforme sp. nov. is proposed. The type strain is S1- 2-4T (= KCTC 52724T = JCM 32128T).

Citations

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Spirosoma rhododendri sp. nov., isolated from a flower of royal azalea (Rhododendron schlippenbachii)
Miyoung Won, Seung-Beom Hong, Byeong-Hak Han, Soon-Wo Kwon
International Journal of Systematic and Evolutionary Microbiology .2022;[Epub] CrossRef
Spirosoma sordidisoli sp. nov., a propanil-degrading bacterium isolated from a herbicide-contaminated soil
Long Zhang, Xi-Yi Zhou, Xiao-Jing Su, Qiang Hu, Jian-Dong Jiang
Antonie van Leeuwenhoek.2019; 112(10): 1523. CrossRef
Spirosoma utsteinense sp. nov. isolated from Antarctic ice-free soils from the Utsteinen region, East Antarctica
Guillaume Tahon, Liesbeth Lebbe, Anne Willems
International Journal of Systematic and Evolutionary Microbiology .2019;[Epub] CrossRef
List of new names and new combinations previously effectively, but not validly, published
Aharon Oren, George M. Garrity
International Journal of Systematic and Evolutionary Microbiology .2018; 68(3): 693. CrossRef

Spirosoma daeguensis sp. nov., isolated from beach soil: Nabil Elderiny , Leonid N. Ten , Jae-Jin Lee , Seung-Yeol Lee , Sangkyu Park , Young-Je Cho , Myung Kyum Kim , Hee-Young Jung; J. Microbiol. 2017;55(9):678-683. Published online September 2, 2017; DOI: https://doi.org/10.1007/s12275-017-7211-z

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Abstract

A Gram-stain-negative, non-motile, non-spore-forming, rodshaped, aerobic bacterium, designated 15J9-6T, was isolated from beach soil on Jeju Island, South Korea. Strain 15J9-6T, grew at 10–30°C (optimum growth at 25°C) and pH 7–8 (optimum growth at pH 7) on R2A, NA, and TSA agar. Phylogenetically, the strain was closely related to members of the genus Spirosoma (92.3–90.1% 16S rRNA gene sequence similarities) and showed highest sequence similarity to Spirosoma panaciterrae DSM 21099T (92.3%). The G+C content of the genomic DNA of strain 15J9-6T was 45.7 mol%. The strain contained phosphatidylethanolamine, two unidentified aminophospholipids, an unidentified phospholipid, and an unidentified lipid as the major polar lipids; menaquinone MK-7 as the predominant respiratory quinone and summed feature 3 (C16:1 ω6c/C16:1 ω7c; 30.1%), C16:1 ω5c (23.1%), iso C15:0 (13.3%), and C16:0 (8.4%) as the major fatty acids which supported the affiliation of strain 15J9-6T to the genus Spirosoma. The results of physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain 15J9-6T from recognized Spirosoma species. On the basis of its phenotypic properties and phylogenetic distinctiveness, strain 15J9-6T represents a novel species of the genus Spirosoma, for which the name Spirosoma daeguensis sp. nov. is proposed. The type strain is 15J9-6T (=KCTC 52036T =JCM 31995T)

Citations

Citations to this article as recorded by

Spirosoma rhododendri sp. nov., isolated from a flower of royal azalea (Rhododendron schlippenbachii)
Miyoung Won, Seung-Beom Hong, Byeong-Hak Han, Soon-Wo Kwon
International Journal of Systematic and Evolutionary Microbiology .2022;[Epub] CrossRef
Spirosoma utsteinense sp. nov. isolated from Antarctic ice-free soils from the Utsteinen region, East Antarctica
Guillaume Tahon, Liesbeth Lebbe, Anne Willems
International Journal of Systematic and Evolutionary Microbiology .2019;[Epub] CrossRef
Spirosoma humi sp. nov., Isolated from Soil in South Korea
Li Weilan, Jae-Jin Lee, Seung-Yeol Lee, Sangkyu Park, Leonid N. Ten, Hee-Young Jung
Current Microbiology.2018; 75(3): 328. CrossRef
List of new names and new combinations previously effectively, but not validly, published
Aharon Oren, George M. Garrity
International Journal of Systematic and Evolutionary Microbiology .2017; 67(11): 4291. CrossRef

Spirosoma metallicus sp. nov., isolated from an automobile air conditioning system: Hyosun Lee , Dong-Uk Kim , Suyeon Lee , Sooyeon Park , Jung-Hoon Yoon , So Yoon Park , Jong-Ok Ka; J. Microbiol. 2017;55(9):673-677. Published online August 5, 2017; DOI: https://doi.org/10.1007/s12275-017-7162-4

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Abstract

A Gram-stain-negative and orangish yellow-pigmented bacterial strain, designated PR1014KT, was isolated from an automobile evaporator core collected in Korea. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain PR1014KT was related with the members of the genus Spirosoma (94.7–90.2%) and closely related with Spirosoma lacussanchae CPCC 100624T (94.7%), Spirosoma knui 15J8- 12T (94.3%), and Spirosoma soli MIMBbqt12T (93.3%). The strain grew at 15–40°C (optimum, 25°C), pH 6.5–7.0 (optimum, 6.5) and 0–1% (w/v) NaCl (optimum, 0%). The predominant fatty acids were summed feature 3 (C16:1 ω7c and/or C16:1 ω6c), C16:0, iso-C15:0, C16:1 ω5c, and iso-C17:0 3-OH. The major menaquinone was MK-7. The polar lipid profile of the strain indicated that the presence of one phosphatidylethanolamine, one unidentified aminolipid, two unidentified aminophospholipids, and three unidentified lipids. The DNA G+C content of the strain was 47.4 mol%. On the basis of the phenotypic, genotypic and chemotaxonomic characteristics, strain PR1014KT represents a novel species in the genus Spirosoma, for which the name Spirosoma metallicus sp. nov. (=KACC 17940T =NBRC 110792T) is proposed.

Citations

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Spirosoma rhododendri sp. nov., isolated from a flower of royal azalea (Rhododendron schlippenbachii)
Miyoung Won, Seung-Beom Hong, Byeong-Hak Han, Soon-Wo Kwon
International Journal of Systematic and Evolutionary Microbiology .2022;[Epub] CrossRef
Spirosoma taeanense sp. nov., a radiation resistant bacterium isolated from a coastal sand dune
Ji Hee Lee, Jong-Hyun Jung, Min-Kyu Kim, Han Na Choe, Chi Nam Seong, Sangyong Lim
Antonie van Leeuwenhoek.2021; 114(2): 151. CrossRef
Spirosoma sordidisoli sp. nov., a propanil-degrading bacterium isolated from a herbicide-contaminated soil
Long Zhang, Xi-Yi Zhou, Xiao-Jing Su, Qiang Hu, Jian-Dong Jiang
Antonie van Leeuwenhoek.2019; 112(10): 1523. CrossRef
Spirosoma utsteinense sp. nov. isolated from Antarctic ice-free soils from the Utsteinen region, East Antarctica
Guillaume Tahon, Liesbeth Lebbe, Anne Willems
International Journal of Systematic and Evolutionary Microbiology .2019;[Epub] CrossRef
List of new names and new combinations previously effectively, but not validly, published
Aharon Oren, George M. Garrity
International Journal of Systematic and Evolutionary Microbiology .2018; 68(3): 693. CrossRef

Spirosoma luteolum sp. nov. isolated from water: Jae-Jin Lee , Su-Jin Park , Yeon-Hee Lee , Seung-Yeol Lee , Sangkyu Park , Young-Je Cho , Myung Kyum Kim , Leonid N. Ten , Hee-Young Jung; J. Microbiol. 2017;55(4):247-252. Published online March 13, 2017; DOI: https://doi.org/10.1007/s12275-017-6455-y

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Abstract

A novel Gram-negative and rod-shaped bacterial strain, de-signated as 16F6ET, was isolated from a water sample. Cells were yellowish in color and catalase- and oxidase-positive. The strain grew at 10–37°C (optimum at 25°C) but not at 4 and 42°C, and pH 5–7 (optimum at pH 7). It showed mod-erate resistance to gamma-ray irradiation. Comparative phy-logenetic analysis showed that strain 16F6ET belonged to the family Cytophagaceae of the class Cytophagia. Furthermore, this isolate showed relatively low 16S rRNA gene sequence similarities (90.7–93.1%) to the members of the genus Spiro-soma. The major fatty acids were summed feature 3 (C16:1 ω7c/C16:1 ω6c), C16:1 ω5c, C16:0 N alcohol, and C16:0. The polar lipid profile indicated presence of phosphatidylethanolamine, unknown aminophospholipids, an unknown amino lipid, unknown phospholipids, and unknown polar lipids. The pre-dominant isoprenoid quinone was MK-7. The genomic DNA G+C content of strain 16F6ET was 56.5 mol%. Phenotypic, phylogenetic, and chemotaxonomic properties indicated that isolate 16F6ET represents a novel species within the genus Spirosoma, for which the name Spirosoma luteolum sp. nov. is proposed. The type strain is 16F6ET (=KCTC 52199T =JCM 31411T).

Citations

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Isolation of Spirosoma foliorum sp. nov. from the fallen leaf of Acer palmatum by a novel cultivation technique
Ho Le Han, Dian Alfian Nurcahyanto, Neak Muhammad, Yong-Jae Lee, Tra T. H. Nguyen, Song-Gun Kim, Sook Sin Chan, Kuan Shiong Khoo, Kit Wayne Chew, Pau Loke Show, Thi Ngoc Thu Tran, Thi Dong Phuong Nguyen, Chen Yaw Chiu
Scientific Reports.2023;[Epub] CrossRef
Spirosoma rhododendri sp. nov., isolated from a flower of royal azalea (Rhododendron schlippenbachii)
Miyoung Won, Seung-Beom Hong, Byeong-Hak Han, Soon-Wo Kwon
International Journal of Systematic and Evolutionary Microbiology .2022;[Epub] CrossRef
Theoretical design of new organic compounds based on diketopyrrolopyrrole and phenyl for organic bulk heterojunction solar cell applications: DFT and TD-DFT study
M. Raftani, T. Abram, A. Azaid, R. Kacimi, M.N. Bennani, M. Bouachrine
Materials Today: Proceedings.2021; 45: 7334. CrossRef
Spirosoma utsteinense sp. nov. isolated from Antarctic ice-free soils from the Utsteinen region, East Antarctica
Guillaume Tahon, Liesbeth Lebbe, Anne Willems
International Journal of Systematic and Evolutionary Microbiology .2019;[Epub] CrossRef
Spirosoma terrae sp. nov., Isolated from Soil from Jeju Island, Korea
Leonid N. Ten, Joseph Okiria, Jae-Jin Lee, Seung-Yeol Lee, Sangkyu Park, Dae Sung Lee, In-Kyu Kang, Myung Kyum Kim, Hee-Young Jung
Current Microbiology.2018; 75(4): 492. CrossRef
Spirosoma harenae sp. nov., a Bacterium Isolated from a Sandy Beach
Leonid N. Ten, Nabil Elderiny, Jae-Jin Lee, Seung-Yeol Lee, Sangkyu Park, Dae Sung Lee, Myung Kyum Kim, Hee-Young Jung
Current Microbiology.2018; 75(2): 179. CrossRef
Spirosoma jeollabukense sp. nov., isolated from soil
Weilan Li, Leonid N. Ten, Seung-Yeol Lee, Dong Hoon Lee, Hee-Young Jung
Archives of Microbiology.2018; 200(3): 431. CrossRef
Spirosoma humi sp. nov., Isolated from Soil in South Korea
Li Weilan, Jae-Jin Lee, Seung-Yeol Lee, Sangkyu Park, Leonid N. Ten, Hee-Young Jung
Current Microbiology.2018; 75(3): 328. CrossRef
Spirosoma horti sp. nov., isolated from apple orchard soil
Weilan Li, Leonid N. Ten, Seung-Yeol Lee, In-Kyu Kang, Hee-Young Jung
International Journal of Systematic and Evolutionary Microbiology.2018; 68(3): 930. CrossRef
Spirosoma agri sp. nov., Isolated from Apple Orchard Soil
Weilan Li, Seung-Yeol Lee, In-Kyu Kang, Leonid N. Ten, Hee-Young Jung
Current Microbiology.2018; 75(6): 694. CrossRef
Spirosoma pomorum sp. nov., isolated from apple orchard soil
Weilan Li, Seung-Yeol Lee, In-Kyu Kang, Leonid N. Ten, Hee-Young Jung
Journal of Microbiology.2018; 56(2): 90. CrossRef
Spirosoma metallilatum sp. nov., isolated from an automotive air conditioning system
Dong-Uk Kim, Hyosun Lee, Suyeon Lee, Sooyeon Park, Jung-Hoon Yoon, Jong-Ok Ka
International Journal of Systematic and Evolutionary Microbiology .2018; 68(2): 523. CrossRef
Spirosoma migulaei sp. nov., isolated from soil
Joseph Okiria, Leonid N. Ten, Su-Jin Park, Seung-Yeol Lee, Dong Hoon Lee, In-Kyu Kang, Dae Sung Lee, Hee-Young Jung
Journal of Microbiology.2017; 55(12): 927. CrossRef
Spirosoma litoris sp. nov., a bacterium isolated from beach soil
Joseph Okiria, Leonid N. Ten, Jae-Jin Lee, Seung-Yeol Lee, Young-Je Cho, Myung Kyum Kim, Hee-Young Jung
International Journal of Systematic and Evolutionary Microbiology.2017; 67(12): 4986. CrossRef
Spirosoma flavus sp. nov., a novel bacterium from soil of Jeju Island
Nabil Elderiny, Seung-Yeol Lee, Sangkyu Park, In-Kyu Kang, Myung Kyum Kim, Dae Sung Lee, Leonid N. Ten, Hee-Young Jung
Journal of Microbiology.2017; 55(11): 850. CrossRef
Spirosoma koreense sp. nov., a species of the family Cytophagaceae isolated from beach soil
Leonid N. Ten, Joseph Okiria, Jae-Jin Lee, Seung-Yeol Lee, In-Kyu Kang, Dae Sung Lee, Hee-Young Jung
International Journal of Systematic and Evolutionary Microbiology.2017; 67(12): 5198. CrossRef
Spirosoma daeguensis sp. nov., isolated from beach soil
Nabil Elderiny, Leonid N. Ten, Jae-Jin Lee, Seung-Yeol Lee, Sangkyu Park, Young-Je Cho, Myung Kyum Kim, Hee-Young Jung
Journal of Microbiology.2017; 55(9): 678. CrossRef
List of novel names and novel combinations previously effectively, but not validly, published
Aharon Oren, George M. Garrity
International Journal of Systematic and Evolutionary Microbiology .2017; 67(7): 2075. CrossRef

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Spirosoma pulveris sp. nov., a bacterium isolated from a dust sample collected at Chungnam province, South Korea: Eun Sun Joo , Jae-Jin Lee , Seho Cha , Weonhwa Jheong , Taegun Seo , Sangyong Lim , Sun-wook Jeong , Sathiyaraj Srinivasan; J. Microbiol. 2015;53(11):750-755. Published online October 28, 2015; DOI: https://doi.org/10.1007/s12275-015-5263-5

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Abstract

Strain JSH 5-14T, a Gram-negative, non-motile, and curved rod-shaped bacterium, was isolated from a dust sample collected at Nonsan, Chungnam province, South Korea, and was characterized to determine its taxonomic position. Phylogenetic analysis based on the 16S rRNA gene sequence of strain JSH 5-14T revealed that it belongs to the genus Spirosoma, family Cytophagaceae, class Cytophagia. The highest degree of sequence similarities of strain JSH 5-14T were found with Spirosoma liguale DSM 74T (97.8%) and Spirosoma endophyticum EX 36T (96.2%). The predominant fatty acids were summed feature 3 (composed of C16:1 ω7c/C16:1 ω6c) and C16:1ω5c. The major polar lipid was phosphatidylethanolamine, and the predominant respiratory quinone was MK-7. Based on the phylogenetic, chemotaxonomic, and phenotypic data, we propose the strain JSH 5-14T (=KCTC 42550T =JCM 30688T =KEMB 9004-165T) should be classified as a type strain of a novel species, for which the name Spirosoma pulveris sp. nov., is proposed.

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Spirosoma montaniterrae sp. nov., an ultraviolet and gamma radiation-resistant bacterium isolated from mountain soil: Jae-Jin Lee , Myung-Suk Kang , Eun Sun Joo , Myung Kyum Kim , Wan-Taek Im , Hee-Young Jung , Sathiyaraj Srinivasan; J. Microbiol. 2015;53(7):429-434. Published online June 27, 2015; DOI: https://doi.org/10.1007/s12275-015-5008-5

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Abstract

A Gram-negative, yellow-pigmented, long-rod shaped bacterial strain designated DY10T was isolated from a soil sample collected at Mt. Deogyusan, Jeonbuk province, South Korea. Optimum growth observed at 30°C and pH 7. No growth was observed above 1% (w/v) NaCl. Comparative 16S rRNA gene sequence analysis showed that strain DY10T belonged to the genus Spirosoma and was distantly related to Spirosoma arcticum R2-35T (91.0%), Spirosoma lingual DSM 74T (90.8%), Spirosoma endophyticum EX36T (90.7%), Spirosoma panaciterrae DSM 21099T (90.5%), Spirosoma rigui WPCB118T (90.2%), Spirosoma spitsbergense DSM 19989T (89.8%), Spirosoma luteum DSM 19990T (89.6%), Spirosoma oryzae RHs22T (89.6%), and Spirosoma radiotolerans DG5AT (89.1%). Strain DY10T showed resistance to gamma and ultraviolet radiation. The chemotaxonomic characteristics of strain DY10T were consistent with those of the genus Spirosoma, with the quinone system with MK-7 as the predominant menaquinone, iso-C15:0, C16:1 ω5c, and summed feature3 (C16:1 ω7c/C16:1 ω6c), and phosphatidylethanolamine as the major polar lipid. The G+C content of the genomic DNA was 53.0 mol%. Differential phenotypic properties with the closely related type strains clearly distinguished strain DY10T from previously described members of the genus Spirosoma and represents a novel species in this genus, for which the name Spirosoma montaniterrae sp. nov. is proposed. The type strain is DY10T (=KCTC 23999T =KEMB 9004-162T =JCM 18492T).

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