Arthrobacter cheniae and Arthrobacter frigidicola sp. nov., isolated from a glacier

Author(s):  
Lei-Lei Yang ◽  
Hong-Can Liu ◽  
Qing Liu ◽  
Yu-Hua Xin

Two Gram-stain-positive, aerobic, rod-shaped, pink and light pink colony-forming bacteria, designated as Hz2T and MDT2-14T, respectively, were isolated from glacier cryoconite samples. Comparisons based on 16S rRNA gene sequences showed that strains Hz2T and MDT2-14T take Arthrobacter bussei KR32T and Arthrobacter zhaoguopingii J391T as their closest neighbours, respectively. The average nucleotide identity values between the two novel strains and their closest relatives were 83.56 and 93.06 %, respectively. The two strains contain MK-9(H2) as their predominant menaquinone. The polar lipids of both strains were phosphatidylglycerol, diphosphatidylglycerol, phosphatidylinositol and an unidentified glycolipid. The major fatty acids of strain Hz2T were anteiso-C15 : 0, summed feature 3 (comprising C16 : 1  ω7c and/or C16 : 1  ω6c) and iso-C15 : 0, while the major fatty acids of strain MDT2-14T were anteiso-C15 : 0 and anteiso-C17 : 0. Based on these data, we propose two novel species, Arthrobacter cheniae sp. nov. (Hz2T = CGMCC 1.9262T=NBRC 113086T) and Arthrobacter frigidicola sp. nov. (MDT2-14T=CGMCC 1.9882T=NBRC 113089T).

Author(s):  
Magdalena Ksiezarek ◽  
Teresa Gonçalves Ribeiro ◽  
Joana Rocha ◽  
Filipa Grosso ◽  
Svetlana Ugarcina Perovic ◽  
...  

Two Gram-stain-positive strains, c9Ua_26_MT and c11Ua_112_MT, were isolated from voided urine samples from two healthy women. Comparative 16S rRNA gene sequences demonstrated that these novel strains were members of the genus Limosilactobacillus . Phylogenetic analysis based on pheS gene sequences and core genomes showed that each strain formed a separated branch and are closest to Limosilactobacillus vaginalis DSM 5837T. The average nucleotide identity (ANI) and Genome-to-Genome Distance Calculator (GGDC) values between c9Ua_26_MT and the closest relative DSM 5837T were 90.7 and 42.9 %, respectively. The ANI and GGDC values between c11Ua_112_MT and the closest relative DSM 5837T were 91.2 and 45.0 %, and those among the strains were 92.9% and 51,0 %, respectively. The major fatty acids were C12 : 0 (40.2 %), C16 : 0 (26.7 %) and C18 : 1 ω9c (17.7 %) for strain c9Ua_26_MT, and C18 : 1 ω9c (38.0 %), C16 : 0 (33.3 %) and C12 : 0 (17.6 %) for strain c11Ua_112_MT. The genomic DNA G+C content of strains c9Ua_26_MT and c11Ua_112_MT was 39.9 and 39.7 mol%, respectively. On the basis of the data presented here, strains c9Ua_26_MT and c11Ua_112_MT represent two novel species of the genus Limosilactobacillus , for which the names Limosilactobacillus urinaemulieris sp. nov. (c9Ua_26_MT=CECT 30144T=LMG 31899T) and Limosilactobacillus portuensis sp. nov. (c11Ua_112_MT=CECT 30145T=LMG 31898T) are proposed.


2014 ◽  
Vol 64 (Pt_1) ◽  
pp. 66-71 ◽  
Author(s):  
Jin-Jin Liu ◽  
Xin-Qi Zhang ◽  
Fang-Tao Chi ◽  
Jie Pan ◽  
Cong Sun ◽  
...  

A Gram-stain-negative, non-motile and aerobic bacterium, designated CF17T, was isolated from coastal planktonic seaweeds, East China Sea. The isolate grew at 18–37 °C (optimum 25–28 °C), pH 6.5–9.0 (optimum 7.0–8.0) and with 0–5 % NaCl (optimum 1–2 %, w/v) and 0.5–10 % sea salts (optimum 2–3 %, w/v). Growth of strain CF17T could be stimulated prominently by supplementing the growth medium with the autoclaved supernatant of a culture of strain CF5, which was isolated from the same sample along with strain CF17T. The cell morphology of strain CF17T was a bean-shaped rod consisting of a swollen end and a long prostheca. The phylogenetic analysis of 16S rRNA gene sequences indicated that strain CF17T clustered with Gemmobacter nectariphilus DSM 15620T within the genus Gemmobacter . The DNA G+C content of strain CF17T was 61.4 mol%. The respiratory quinone was ubiquinone Q-10. The major fatty acids included C18 : 1ω7c and C18 : 0. The polar lipids of strain CF17T consisted of phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, two uncharacterized phospholipids, one uncharacterized aminolipid, three uncharacterized glycolipids and one uncharacterized lipid. On the basis of phenotypic, phylogenetic and chemotaxonomic data, strain CF17T ( = CGMCC 1.11024T = JCM 18498T) is considered to represent a novel species of the genus Gemmobacter , for which the name Gemmobacter megaterium sp. nov. is proposed.


2014 ◽  
Vol 64 (Pt_2) ◽  
pp. 413-419 ◽  
Author(s):  
Yochan Joung ◽  
Haneul Kim ◽  
Heeyoung Kang ◽  
Beom-Il Lee ◽  
Tae-Seok Ahn ◽  
...  

A non-motile, yellow–orange-pigmented bacterial strain, designated HME6664T, was isolated from Lake Soyang, Republic of Korea. The major fatty acids of strain HME6664T were summed feature 3 (comprising C16 : 1ω6c and/or C16 : 1ω7c; 44.7 %) and iso-C15 : 0 (20.2 %). The DNA G+C content was 40.8 mol%. A phylogenetic tree based on 16S rRNA gene sequences showed that strain HME6664T formed a lineage within the genus Mucilaginibacter . Strain HME6664T was closely related to Mucilaginibacter ximonensis (96.7 %), Mucilaginibacter dorajii (96.5 %) and Mucilaginibacter lappiensis (96.3 %). On the basis of the evidence presented in this study, strain HME6664T represents a novel species of the genus Mucilaginibacter , for which the name Mucilaginibacter soyangensis sp. nov., is proposed. The type strain is HME6664T ( = KCTC 23261T = CECT 7824T).


2014 ◽  
Vol 64 (Pt_12) ◽  
pp. 4038-4042 ◽  
Author(s):  
Keun Sik Baik ◽  
Mi Sun Kim ◽  
Ji Hee Lee ◽  
Sang Suk Lee ◽  
Wan-Taek Im ◽  
...  

A non-motile and rod-shaped bacterium, designated strain 02SUJ3T, was isolated from freshwater collected from the Juam Reservoir (Republic of Korea). Cells were Gram-stain-negative, aerobic, oxidase-negative and catalase-positive. The major fatty acids were iso-C15 : 0, iso-C15 : 1 G and iso-C17 : 0 3-OH. The strain contained MK-7 as the major isoprenoid quinone. The main polar lipid was phosphatidylethanolamine. The DNA G+C content was 46.4 mol%. A phylogenetic tree based on 16S rRNA gene sequences showed that strain 02SUJ3T forms an independent lineage within the genus Flavisolibacter with low sequence similarity to Flavisolibacter ginsengiterrae Gsoil 492T and Flavisolibacter ginsengisoli Gsoil 643T (95.7 %). Phenotypic characteristics distinguished strain 02SUJ3T from members of the genus Flavisolibacter . On the basis of the evidence presented in this study, strain 02SUJ3T is considered to represent a novel species, for which the name Flavisolibacter rigui sp. nov. is proposed. The type strain is 02SUJ3T ( = JCM 17515T = KCTC 23328T). An emended description of the genus Flavisolibacter is also provided.


2020 ◽  
Vol 70 (5) ◽  
pp. 3241-3246 ◽  
Author(s):  
Yuan Zhou ◽  
Shengxiang Pei ◽  
Fuquan Xie ◽  
Li Gu ◽  
Gaiyun Zhang

A novel Gram-stain-positive, aerobic, non-motile actinobacterium, designated strain E2AT, was isolated from a coral sample and examined using a polyphasic taxonomic approach. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain E2AT formed a distinct phyletic lineage in the genus Saccharopolyspora and was closely related to S. cavernae CCTCC AA 2012022T (96.4 %) and S. lacisalsi CCTCC AA 2010012T (95.3 %). The isolate grew at 15–35 °C, pH 5–12 and in the presence of 1–16 % (w/v) NaCl. The cell-wall diamino acid was meso-DAP. Major fatty acids identified were iso-C15 : 0, iso-C16 : 0 and C17 : 1  ω8c. The predominant menaquinone was MK-9(H4). The polar lipids detected were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, phosphatidylmethylethanolamine, one unidentified glycolipid, one unidentified phospholipid and one unidentified aminolipid. The genomic DNA G+C content was 68.6 mol%. Based on the data from the polyphasic taxonomic study reported here, strain E2AT represents a novel species within the genus Saccharopolyspora , for which the name Saccharopolyspora coralli sp. nov. is proposed. The type strain is E2AT=(JCM 31844T=MCCC 1A17150T).


2014 ◽  
Vol 64 (Pt_4) ◽  
pp. 1218-1222 ◽  
Author(s):  
Soo-Jin Kim ◽  
Ji-Young Moon ◽  
Hang-Yeon Weon ◽  
Jae-Hyung Ahn ◽  
Wen-Ming Chen ◽  
...  

A Gram-stain-negative, aerobic, motile, rod-shaped bacterium, designated strain KIS83-12T, was isolated from soil of Gaui island in the Taean region of South Korea. The strain grew at 15–33 °C (optimum, 28 °C), at pH 5.0–8.0 (optimum, pH 7.0). Growth did not occur in the presence of NaCl. The strain was catalase-negative and oxidase-positive. Phylogenetic analysis based on 16S rRNA gene sequences showed that KIS83-12T was most closely related to Solimonas soli DCY12T (96.9 %), Solimonas variicoloris MN28T (96.5 %), Solimonas flava CW-KD 4T (96.5 %) and Solimonas aquatica NAA16T (96.0 %), and formed a robust phyletic lineage with members of the genus Solimonas . The main isoprenoid quinone was Q-8. Major polar lipids included phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. Fatty acids present in large and moderate amounts (>5.0 %) were summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c), C16 : 0, C16 : 1ω5c, summed feature 2 (iso-C16 : 1 I and/or C14 : 0 3-OH) and C12 : 0. The DNA G+C content was 67.9 mol%. On the basis of the taxonomic data obtained in this study, KIS83-12T represents a novel species of the genus Solimonas , for which the name Solimonas terrae sp. nov. is proposed, with KIS83-12T ( = KACC 16967T = DSM 27281T) as the type strain.


2013 ◽  
Vol 63 (Pt_8) ◽  
pp. 2823-2828 ◽  
Author(s):  
Aysel Veyisoglu ◽  
Mustafa Camas ◽  
Demet Tatar ◽  
Kiymet Guven ◽  
Anil Sazak ◽  
...  

A reddish-orange-pigmented, Gram-stain-negative, aerobic, facultatively methylotrophic strain, N4211T, isolated from arid soil, collected from Abuja, Nigeria, was analysed by using a polyphasic approach. Phylogenetic analysis, based on 16S rRNA gene sequences, showed that strain N4211T belonged to the genus Methylobacterium . Strain N4211T was most closely related to Methylobacterium aquaticum GR16T (98.56 %), Methylobacterium platani PMB02T (97.95 %) and Methylobacterium variabile GR3T (97.2 %), and the phylogenetic similarities to all other species of the genus Methylobacterium with validly published names were less than 97.0 %. The major ubiquinones detected were Q-10. The major fatty acids were summed feature 7 (C18 : 1 cis11/t9/t6). The DNA G+C content was 67.3 mol%. DNA–DNA relatedness of strain N4211T and the most closely related strains M. aquaticum DSM 16371T and M. platani KCTC 12901T were 60.0 and 48.2 %, respectively. On the basis of phenotypic, phylogenetic and DNA–DNA hybridization data, strain N4211T is assigned to a novel species of the genus Methylobacterium for which the name Methylobacterium tarhaniae sp. nov. is proposed. The type strain is N4211T( = KCTC 23615T = DSM 25844T).


2014 ◽  
Vol 64 (Pt_10) ◽  
pp. 3346-3352 ◽  
Author(s):  
Bo Liu ◽  
Guo-Hong Liu ◽  
Gui-Hing Hu ◽  
Mei-Chun Chen

A Gram-stain-positive, short rod-shaped and motile, mildly halotolerant, endospore-forming bacterium, FJAT-13985T, was isolated from the internal tissues of Mesona chinensis root. Strain FJAT-13985T grew at 20–45 °C (optimum 30 °C) and pH 5.7–9.0 (optimum pH 7.0) and in the presence of 0–2 % (w/v) NaCl [optimum 1 % (w/v)]. The strain was catalase-positive and oxidase-negative. The cell wall of strain FJAT-13985T contained meso-diaminopimelic acid and the predominant isoprenoid quinone was MK-7 (97.4 %). The major fatty acids of the strain were anteiso-C15 : 0 (23.3 %) and iso-C15 : 0 (40.8 %). The DNA G+C content was 41.64 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain FJAT-13985T is a member of the genus Bacillus and is most closely related to Bacillus drentensis DSM 15600T (98.4 %), Bacillus vireti DSM 15602T (98.2 %) and Bacillus novalis DSM 15603T (98.3 %). DNA–DNA hybridization indicated that relatedness between strain FJAT-13985T and its closest relative, B. drentensis DSM 15600T, was 36.63 %. The phenotypic, chemotaxonomic and genotypic properties clearly indicate that strain FJAT-13985T represents a novel species of the genus Bacillus , for which the name Bacillus mesonae sp. nov. is proposed. The type strain is FJAT-13985T ( = DSM 25968T = CGMCC1.12238T).


2015 ◽  
Vol 65 (Pt_2) ◽  
pp. 407-411 ◽  
Author(s):  
Jing Hu ◽  
Wei-Yan Zhang ◽  
Xin-Qi Zhang ◽  
Hong-Cheng ◽  
Xu-Fen Zhu ◽  
...  

A Gram-stain-negative, aerobic, orange-pigmented, rod-shaped and non-motile bacterium, designated strain A6B8T, was isolated from seawater of the Mariana Trench. The isolate grew at 4–50 °C (optimum 30–35 °C), at pH 6.5–8.0 (optimum pH 7.5) and with 0.5–4.0 % (w/v) NaCl (optimum 1.0–2.0 %). Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain A6B8T was related most closely to the genus Muriicola and shared highest sequence similarity of 97.7 % with Muriicola jejuensis EM44T. Chemotaxonomic analysis showed menaquinone 6 (MK-6) was the predominant isoprenoid and iso-C15 : 0, iso-C15 : 1 G and iso-C17 : 0 3-OH were the major cellular fatty acids. The polar lipid profile of strain A6B8T included phosphatidylethanolamine, three unidentified aminolipids and four unidentified lipids. The genomic DNA G+C content was 47.1 mol%. The DNA–DNA relatedness value (23.3 %) clearly demonstrated that strains A6B8T and M. jejuensis EM44T were representatives of two different species. Based on the phenotypic, phylogenetic and chemotaxonomic characterizations, A6B8T ( = CGMCC 1.12606T = KCTC 32436T) is considered to be the type strain of a novel species of the genus Muriicola , for which the name Muriicola marianensis sp. nov. is proposed.


2013 ◽  
Vol 63 (Pt_5) ◽  
pp. 1702-1708 ◽  
Author(s):  
M. Madhaiyan ◽  
C. J. Hu ◽  
J. Jegan Roy ◽  
S.-J. Kim ◽  
H.-Y. Weon ◽  
...  

Four orange-pigmented isolates, L7-456, L7-484T, L9-479 and L9-753T, originating from surface-sterilized leaf tissues of Jatropha curcas L. cultivars were characterized using a polyphasic taxonomic approach. Phylogenetic analyses based on 16S rRNA gene sequences indicated that all four isolates belong to the genus Aureimonas . In these analyses, strain L7-484T appeared to be most closely related to Aureimonas ureilytica 5715S-12T (95.7 % sequence identity). The 16S rRNA gene sequences of strains L7-456, L9-479 and L9-753T were found to be identical and also shared the highest similarity with A. ureilytica 5715S-12T (97.5 %). Both L7-484T and L9-753T contained Q-10 and Q-9 as predominant ubiquinones and diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, phosphatidylmonomethylethanolamine, phosphatidylethanolamine, phosphatidyldimethylethanolamine, sulfoquinovosyldiacylglycerol and an aminophospholipid as the major polar lipids. C18 : 1ω7c and C16 : 0 were the major fatty acids. Similar to other species in the genus Aureimonas , hydroxylated fatty acids (e.g. C18 : 1 2-OH) and cyclic fatty acids (C19 : 0 cyclo ω8c) were also present. The DNA G+C contents of L7-484T and L9-753T were 66.1 and 69.4 mol%, respectively. Strains L7-484T and L9-753T exhibited less than 40 % DNA–DNA hybridization both between themselves and to A. ureilytica KACC 11607T. Our results support the proposal that strain L7-484T represents a novel species within the genus Aureimonas , for which the name Aureimonas jatrophae sp. nov. is proposed, and that strains L9-753T, L7-456 ( = KACC 16229  = DSM 25023) and L9-479 ( = KACC 16228  = DSM 25024) represent a second novel species within the genus, for which the name Aureimonas phyllosphaerae sp. nov. is proposed. The type strains of Aureimonas jatrophae sp. nov. and Aureimonas phyllosphaerae sp. nov. are respectively L7-484T ( = KACC 16230T  = DSM 25025T) and L9-753T ( = KACC 16231T  = DSM 25026T).


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