scholarly journals Sulfitobacter geojensis sp. nov., Sulfitobacter noctilucae sp. nov., and Sulfitobacter noctilucicola sp. nov., isolated from coastal seawater

2014 ◽  
Vol 64 (Pt_11) ◽  
pp. 3760-3767 ◽  
Author(s):  
Min-Jung Kwak ◽  
Jung-Sook Lee ◽  
Keun Chul Lee ◽  
Kwang Kyu Kim ◽  
Mi Kyung Eom ◽  
...  
Keyword(s):  
Type Strain ◽  
Vaccenic Acid ◽  
Sequence Similarity ◽  
Genomic Variation ◽  
Rrna Gene ◽  
Bacterial Strains ◽  
Content Type ◽  
Coastal Seawater ◽  
Link Type ◽  
Reference Strains

Four Gram-stain-negative, aerobic, rod-shaped bacterial strains, MM-124, MM-126, NB-68 and NB-77, were isolated from the coastal seawater or a region with a bloom of sea sparkle around Geoje island in Korea. The sequence similarity values of the 16S rRNA gene between the isolates and Sulfitobacter mediterraneus DSM 12244T ranged from 97.7 to 98.2 %, and phylogenetic relationships suggested that they belong to a phylogenetic branch that includes the genera Sulfitobacter and Roseobacter . The isoprenoid quinone of all three novel strains was ubiquinone-10 and the major fatty acid was cis-vaccenic acid, as in other species of the genus Sulfitobacter . However, there were several differences in the morphological, physiological and biochemical characteristics among the four strains and the reference species of the genus Sulfitobacter . Moreover, the average nucleotide identity values between the three sequenced isolates and the reference strains were below 76.33, indicating that genomic variation exists between the isolates and reference strains. Chemotaxonomic characteristics together with phylogenetic affiliations and genomic distances illustrate that strains MM-124, NB-68 and NB-77 represent novel species of the genus Sulfitobacter , for which the names Sulfitobacter geojensis sp. nov. (type strain MM-124T = KCTC 32124T = JCM 18835T), Sulfitobacter noctilucae sp. nov. (type strain NB-68T = KCTC 32122T = JCM 18833T) and Sulfitobacter noctilucicola sp. nov. (type strain NB-77T = KCTC 32123T = JCM 18834T) are proposed.

scholarly journals Sphingomonas corticis sp. nov., and Sphingobacterium corticibacterium sp. nov., from bark canker

2020 ◽  
Vol 70 (11) ◽  
pp. 5627-5633 ◽  
Author(s):  
Yong Li ◽  
Shengkun Wang ◽  
Ju-pu Chang ◽  
Dan-ran Bian ◽  
Li-min Guo ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Type Strain ◽  
Type Species ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Bacterial Strains ◽  
Respiratory Quinone ◽  
Polar Lipid Profile ◽  
Content Type ◽  
Link Type

Two Gram-stain-negative, aerobic, non-motile bacterial strains, 36D10-4-7T and 30C10-4-7T, were isolated from bark canker tissue of Populus × euramericana, respectively. 16S rRNA gene sequence analysis revealed that strain 36D10-4-7T shows 98.0 % sequence similarity to Sphingomonas adhaesiva DSM 7418T, and strain 30C10-4-7T shows highest sequence similarity to Sphingobacterium arenae H-12T (95.6 %). Average nucleotide identity analysis indicates that strain 36D10-4-7T is a novel member different from recognized species in the genus Sphingomonas . The main fatty acids and respiratory quinone detected in strain 36D10-4-7T are C18 : 1  ω7c and/or C18 : 1  ω6c and Q-10, respectively. The polar lipids are diphosphatidylglycerol, phosphatidylcholine, phosphatidylglycerol, aminolipid, phosphatidylethanolamine, sphingoglycolipid, two uncharacterized phospholipids and two uncharacterized lipids. For strain 30C10-4-7T, the major fatty acids and menaquinone are iso-C15 : 0, C16 : 1  ω7c and/or C16 : 1  ω6c and iso-C17 : 0 3-OH and MK-7, respectively. The polar lipid profile includes phosphatidylethanolamine, phospholipids, two aminophospholipids and six unidentified lipids. Based on phenotypic and genotypic characteristics, these two strains represent two novel species within the genera Sphingomonas and Sphingobacterium . The name Sphingomonas corticis sp. nov. (type strain 36D10-4-7T=CFCC 13112T=KCTC 52799T) and Sphingobacterium corticibacterium sp. nov. (type strain 30C10-4-7T=CFCC 13069T=KCTC 52797T) are proposed.

scholarly journals Brenneria goodwinii sp. nov., associated with acute oak decline in the UK

2012 ◽  
Vol 62 (Pt_10) ◽  
pp. 2451-2456 ◽  
Author(s):  
Sandra Denman ◽  
Carrie Brady ◽  
Susan Kirk ◽  
Ilse Cleenwerck ◽  
Stephanus Venter ◽  
...  
Keyword(s):  
Type Strain ◽  
Sequence Similarity ◽  
16S Rrna Gene Sequencing ◽  
Rrna Gene ◽  
Oak Decline ◽  
Bacterial Strains ◽  
Phenotypic Data ◽  
Content Type ◽  
Link Type ◽  
The Uk

A group of nine Gram-negative staining, facultatively anaerobic bacterial strains isolated from native oak trees displaying symptoms of acute oak decline (AOD) in the UK were investigated using a polyphasic approach. 16S rRNA gene sequencing and phylogenetic analysis revealed that these isolates form a distinct lineage within the genus Brenneria , family Enterobacteriaceae , and are most closely related to Brenneria rubrifaciens (97.6 % sequence similarity to the type strain). Multilocus sequence analysis based on four housekeeping genes (gyrB, rpoB, infB and atpD) confirmed their position within the genus Brenneria , while DNA–DNA hybridization indicated that the isolates belong to a single taxon. The isolates can be differentiated phenotypically from their closest phylogenetic neighbours. The phylogenetic and phenotypic data demonstrate that these isolates from oak with symptoms of AOD represent a novel species in the genus Brenneria , for which the name Brenneria goodwinii sp. nov. (type strain FRB 141T  = R-43656T  = BCC 845T  = LMG 26270T  = NCPPB 4484T) is proposed.

Flavobacterium yonginense sp. nov. and Flavobacterium myungsuense sp. nov., isolated from a mesotrophic artificial lake

2012 ◽  
Vol 62 (Pt_4) ◽  
pp. 806-810 ◽  
Author(s):  
Yochan Joung ◽  
Haneul Kim ◽  
Tae-Seok Ahn ◽  
Kiseong Joh
Keyword(s):  
Type Strain ◽  
Type Species ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Bacterial Strains ◽  
16S Rrna Gene Sequences ◽  
Artificial Lake ◽  
Content Type ◽  
Link Type ◽  
Gram Staining

Two non-motile, Gram-staining-negative, yellow-pigmented bacterial strains designated HMD1001T and HMD1033T were isolated from the water of a mesotrophic artificial lake in Korea. A phylogenetic tree based on 16S rRNA gene sequences indicated that both strains could be assigned to the genus Flavobacterium ; strain HMD1001T appeared most closely related to Flavobacterium fluvii H7T (96.8 % sequence similarity), F. succinicans DSM 4002T (96.6 %) and F. hydatis DSM 2063T (96.6 %) whereas strain HMD1033T appeared most closely related to Flavobacterium psychrolimnae LMG 2201T (96.2 %), F. segetis AT1048T (96.2 %) and F. weaverense AT1042T (96.2 %). The major fatty acids of strain HMD1001T were iso-C15 : 0 (21.5 %), summed feature 3 (comprising C16 : 1ω6c and/or C16 : 1ω7c; 18.0 %) and iso-C15 : 1 G (7.6 %), whereas those of HMD1033T were summed feature 3 (23.8 %), iso-C15 : 0 3-OH (16.9 %), iso-C15 : 0 (15.3 %) and anteiso-C15 : 0 (12.1 %). The genomic DNA G+C contents of strains HMD1001T and HMD1033T were 35.9 and 32.2 mol%, respectively. Phylogenetic and phenotypic evidence indicates that strains HMD1001T and HMD1033T represent two novel species of the genus Flavobacterium , for which the names Flavobacterium yonginense sp. nov. (type strain HMD1001T  = KCTC 22796T  = CECT 7594T) and Flavobacterium myungsuense sp. nov. (type strain HMD1033T  = KCTC 22825T  = CECT 7649T) are proposed.

Mongoliicoccus alkaliphilus sp. nov. and Litoribacter alkaliphilus sp. nov., isolated from salt pans

2013 ◽  
Vol 63 (Pt_9) ◽  
pp. 3457-3462 ◽  
Author(s):  
Y. Subhash ◽  
L. Tushar ◽  
Ch. Sasikala ◽  
Ch. V. Ramana
Keyword(s):  
Type Strain ◽  
Type Species ◽  
Novel Species ◽  
Sequence Similarity ◽  
Carbon Sources ◽  
Coastal Region ◽  
Rrna Gene ◽  
Bacterial Strains ◽  
Content Type ◽  
Link Type

Four bacterial strains (JC165T, JC166T, JC169 and JC170) were isolated from salt pan soils from a coastal region of Tamilnadu, India. They were obligately aerobic, pink- to red-pigmented, mesophilic, haloalkaliphiles having chemoorganoheterotrophic growth on various carbon sources and were catalase- and oxidase-positive. Phototrophic growth and bacteriochlorophyll a were absent in all four strains. Major carotenoids present were β-carotene and rhodoxanthin. The main fatty acid in all strains was iso-C15 : 0. The main polar lipids were phosphatidylethanolamine (PE) and phosphatidylcholine (PC) as well as a few unidentified lipids. Bacterial hopane derivatives and diplopterol (DPL) were detected in all four strains. Based on the 16S rRNA gene sequences, all four strains belong to the family Cyclobacteriaceae in the phylum Bacteroidetes . Strains JC165T and JC169 had a sequence similarity of 97.2 % with Mongoliicoccus roseus MIM28T, while strains JC166T and JC170 had a sequence similarity of 99.5 % with Litoribacter ruber YIM CH208T. Strains JC165T/JC169 and JC166T/JC170 had genomic DNA reassociation values (based on DNA–DNA hybridization) of 21±2 % and 23±1 % with M. roseus KCTC 19808T ( = MIM28T) and L. ruber KCTC 22899T ( = YIM CH208T), respectively, suggesting that they represented novel species. The reassociation values of >85 % between strains JC165T and JC169, and JC166T and JC170 suggested they were strains of the same species. The genomic information was supported by phenotypic observations leading to the proposal of two novel species, Mongoliicoccus alkaliphilus sp. nov. (type strain, JC165T = KCTC 32210T = LMG 27255T) and Litoribacter alkaliphilus sp. nov. (type strain, JC166T = KCTC 32217T = LMG 27256T).

scholarly journals Pseudoseohaeicola caenipelagi gen. nov., sp. nov., isolated from a tidal flat

2015 ◽  
Vol 65 (Pt_6) ◽  
pp. 1819-1824 ◽  
Author(s):  
Sooyeon Park ◽  
Ji-Min Park ◽  
Chul-Hyung Kang ◽  
Song-Gun Kim ◽  
Jung-Hoon Yoon
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Tidal Flat ◽  
Type Strain ◽  
Type Species ◽  
Phylogenetic Trees ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type

A Gram-stain-negative, non-motile, aerobic and pleomorphic bacterium, designated BS-W13T, was isolated from a tidal flat on the South Sea, South Korea, and its taxonomic position was investigated using a polyphasic approach. Strain BS-W13T grew optimally at 25 °C, at pH 7.0–8.0 and in the presence of 1.0–2.0 % (w/v) NaCl. Neighbour-joining and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences showed that strain BS-W13T clustered with the type strain of Seohaeicola saemankumensis , showing the highest sequence similarity (95.96 %) to this strain. Strain BS-W13T exhibited 16S rRNA gene sequence similarity values of 95.95, 95.91, 95.72 and 95.68 % to the type strains of Sulfitobacter donghicola , Sulfitobacter porphyrae , Sulfitobacter mediterraneus and Roseobacter litoralis , respectively. Strain BS-W13T contained Q-10 as the predominant ubiquinone and C18 : 1ω7c as the major fatty acid. The polar lipid profile of strain BS-W13T, containing phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, one unidentified aminolipid and one unidentified lipid as major components, was distinguishable from those of some phylogenetically related taxa. The DNA G+C content of strain BS-W13T was 58.1 mol%. The phylogenetic data and differential chemotaxonomic and other phenotypic properties revealed that strain BS-W13T constitutes a novel genus and species within family Rhodobacteraceae of the class Alphaproteobacteria , for which the name Pseudoseohaeicola caenipelagi gen. nov., sp. nov. is proposed. The type strain is BS-W13T ( = KCTC 42349T = CECT 8724T).

Nocardiopsis coralli sp. nov. a novel actinobacterium isolated from the coral Galaxea astreata

2021 ◽  
Vol 71 (6) ◽  
Author(s):  
Fenfa Li ◽  
Qingyi Xie ◽  
Shuangqing Zhou ◽  
Fandong Kong ◽  
Yun Xu ◽  
...  
Keyword(s):  
Type Strain ◽  
Type Species ◽  
Sequence Similarity ◽  
Phylogenetic Analyses ◽  
Diaminopimelic Acid ◽  
Rrna Gene ◽  
Phenotypic Characteristics ◽  
Content Type ◽  
Link Type ◽  
Phosphatidylinositol Mannosides

Strain HNM0947T, representing a novel actinobacterium, was isolated from the coral Galaxea astreata collected from the coast of Wenchang, Hainan, China. The strain was found to have morphological and chemotaxonomic characteristics consistent with the genus Nocardiopsis . The organism formed abundant fragmented substrate mycelia and aerial mycelia which differentiated into non-motile, rod-shaped spores. Whole-cell hydrolysates contained meso-diaminopimelic acid and no diagnostic sugars. The major menaquinones were MK-10(H8), MK-10(H6) and MK-10(H4). The major phospholipids were phosphatidylcholine, phosphatidylglycerol, phosphatidylinositol and phosphatidylinositol mannosides. The major fatty acids were iso-C16:0, anteiso-C17:0, C18:0, C18:0 10-methyl (TBSA) and anteiso-C15:0. The G+C content was 71.3 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain HNM0947T belonged to the genus Nocardiopsis and shared highest sequence similarity to Nocardiopsis salina YIM 90010T (98.8%), Nocardiopsis xinjiangensis YIM 90004T(98.5%) and Nocardiopsis kunsanensis DSM 44524T (98.3%). The strain HNM0947T was distinguished from its closest type strain by low average nucleotide identity (90.8%) and dDDH values (60.4%) respectively. Based on genotypic, chemotaxonomic and phenotypic characteristics, it was concluded that strain HNM0947T represents a novel species of the genus Nocardiopsis whose name was proposed as Nocardiopsis coralli sp. nov. The type strain was HNM0947T (=CCTCC AA 2020015 T=KCTC 49525 T).

Leucobacter soli sp. nov., from soil amended with humic acid

2021 ◽  
Vol 71 (12) ◽  
Author(s):  
Peter Kämpfer ◽  
John A. McInroy ◽  
Dominique Clermont ◽  
Meina Neumann-Schaal ◽  
Alexis Criscuolo ◽  
...  
Keyword(s):  
Humic Acid ◽  
Type Strain ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Biochemical Tests ◽  
Polar Lipid Profile ◽  
Phenotypic Differentiation ◽  
Content Type ◽  
Link Type ◽  
Diamino Acid

A Gram-positive, non-spore-forming actinobacterium (IMT-300T) was isolated from soil amended with humic acid in Malvern, AL, USA. This soil has been used for 50+years for the cultivation of earthworms for use as fish bait. Based on 16S rRNA gene sequence similarity studies, strain IMT-300T was shown to belong to the genus Leucobacter and was closely related to the type strain of ‘Leucobacter margaritiformis’ L1T (97.8%). Similarity to all other type strains of Leucobacter species was lower than 97.2 %. The average nucleotide identity (ANI) and digital DNA–DNA hybridization (dDDH) values between the IMT-300T genome assembly and those of the closest relative Leucobacter type strain were 81.4 and 23.3 % ( Leucobacter chironomi ), respectively. The peptidoglycan of strain IMT-300T contained l-2,4-diaminobutyric acid as the diagnostic diamino acid. In addition, glycine, d- and l-alanine and d-glutamic acid were found. The peptidoglycan type represents a variant of B2δ (B11). The major quinones were menaquinones MK-10 and MK-11. The polar lipid profile consisted of the major lipids diphosphatidylglycerol, phosphatidylglycerol and moderate to minor amounts of two unidentified phospholipids, two unidentified glycolipids and an unidentified aminophospholipid. The polyamine pattern contained major amounts of spermidine and spermine. Strain IMT-300T contained the major fatty acids C15 : 0 anteiso, C16 : 0 iso and C17 : 0 anteiso, like other members of the genus Leucobacter . The results of ANI and dDDH analyses and physiological and biochemical tests allowed a genotypic and phenotypic differentiation of strain IMT-300T from the most closely related Leucobacter species. Strain IMT-300T represents a novel Leucobacter species, for which we propose the name Leucobacter soli sp. nov., with the type strain IMT-300T (CIP 111803T=DSM 110505T=CCM 9020T=LMG 31600T).

scholarly journals Spirosoma telluris sp. nov. and Spirosoma arboris sp. nov. isolated from soil and tree bark, respectively

2020 ◽  
Vol 70 (10) ◽  
pp. 5355-5362 ◽  
Author(s):  
Heeyoung Kang ◽  
Inseong Cha ◽  
Haneul Kim ◽  
Kiseong Joh
Keyword(s):  
Dna Hybridization ◽  
Type Strain ◽  
Sequence Similarity ◽  
Polar Lipids ◽  
Tree Bark ◽  
Rrna Gene ◽  
Respiratory Quinone ◽  
Polar Lipid Profile ◽  
Content Type ◽  
Link Type

Two novel strains (HMF3257T and HMF4905T), isolated from freshwater and bark samples, were investigated to determine their relationships within and between species of the genus Spirosoma by using a polyphasic approach. They were aerobic, Gram-stain-negative, non-motile and rod-shaped bacteria. The major fatty acids (>10%) in both strains were identified as summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c) and C16 : 1 ω5c, while strains HMF3257T and HMF4905T contained a moderately high amount of C16 : 0 and iso-C15 : 0, respectively. The predominant respiratory quinone was MK-7 for both strains. In addition to phosphatidylethanolamine and one unidentified glycolipid, the polar lipid profile of strain HMF3257T consisted of three unidentified aminophospholipids, one unidentified aminolipid and two unidentified polar lipids, and that of strain HMF4905T consisted of one unidentified aminophospholipid, two unidentified aminolipids and three unidentified polar lipids. The DNA G+C contents of strains HMF3257T and HMF4905T were 47.2 and 46.4 mol%, respectively. Phylogenetic analysis based on 16S rRNA gene sequences showed that strains HMF3257T and HMF4905T are closely related to Spirosoma migulaei 15J9-8T (97.0 % sequence similarity), while sharing 97.4 % sequence similarity with each other. The average nucleotide identity value between strains HMF3257T and HMF4905T was 81.1 %, and the digital DNA–DNA hybridization value between these two strains was 24.4 %. Based on the above data, strains HMF3257T and HMF4905T represent two novel members within the genus Spirosoma , for which the names Spirosoma telluris sp. nov. and Spirosoma arboris sp. nov. are proposed, respectively. The type strain of S. telluris is HMF3257T (=KCTC 62463T=NBRC 112670T) and type strain of S. arboris is HMF4905T (=KCTC 72779T=NBRC 114270T).

scholarly journals Arthrobacter yangruifuii sp. nov. and Arthrobacter zhaoguopingii sp. nov., two new members of the genus Arthrobacter

2020 ◽  
Vol 70 (10) ◽  
pp. 5287-5295 ◽  
Author(s):  
Yajun Ge ◽  
Yuanmeihui Tao ◽  
Jing Yang ◽  
Xin-He Lai ◽  
Dong Jin ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Strain ◽  
Type Species ◽  
Novel Species ◽  
Sequence Similarity ◽  
Tibet Plateau ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type

Four unknown strains belonging to the genus Arthrobacter were isolated from plateau wildlife on the Qinghai–Tibet Plateau of PR China. Phylogenetic analysis based on 16S rRNA gene sequences showed that the four isolates were separated into two clusters. Cluster I (strains 785T and 208) had the greatest 16S rRNA gene sequence similarity to Arthrobacter citreus (98.6 and 98.7 %, respectively), Arthrobacter luteolus (98.0 and 98.1%, respectively), Arthrobacter gandavensis (97.9 and 98.0 %, respectively) and Arthrobacter koreensis (97.6 and 97.7 %, respectively). Likewise, cluster II (strains J391T and J915) had the highest sequence similarity to Arthrobacter ruber (98.6 and 98.3 %, respectively) and Arthrobacter agilis (98.1 and 97.9  %, respectively). Average nucleotide identity and the digital DNA–DNA hybridization values illustrated that the two type strains, 785T and J391T, represented two separate novel species that are distinct from all currently recognized species in the genus Arthrobacter . These strains had DNA G+C contents of 66.0–66.1 mol% (cluster I) and 68.0 mol% (cluster II). The chemotaxonomic properties of strains 785T and J391T were in line with those of the genus Arthrobacter : anteiso-C15:0 (79.3 and 40.8 %, respectively) as the major cellular fatty acid, MK-8(H2) (65.8 %) or MK-9(H2) (75.6 %) as the predominant respiratory quinone, a polar lipid profile comprising diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, glycolipids and phospholipid, and A3α or A4α as the cell wall peptidoglycan type. On the basis of our results, two novel species in the genus Arthrobacter are proposed, namely Arthrobacter yangruifuii sp. nov. (type strain, 785T=CGMCC 1.16725T=GDMCC 1.1592T=JCM 33491T) and Arthrobacter zhaoguopingii sp. nov. (type strain, J391T=CGMCC 1.17382T=GDMCC 1.1667T=JCM 33841T).

Usitatibacter rugosus gen. nov., sp. nov. and Usitatibacter palustris sp. nov., novel members of Usitatibacteraceae fam. nov. within the order Nitrosomonadales isolated from soil

2021 ◽  
Author(s):  
Selma Vieira ◽  
Katharina J. Huber ◽  
Meina Neumann-Schaal ◽  
Alicia Geppert ◽  
Manja Luckner ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Strain ◽  
Type Species ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
The Novel ◽  
Content Type ◽  
Link Type ◽  
Wide Range

Members of the metabolically diverse order Nitrosomonadales inhabit a wide range of environments. Two strains affiliated with this order were isolated from soils in Germany and characterized by a polyphasic approach. Cells of strains 0125_3T and Swamp67T are Gram-negative rods, non-motile, non-spore-forming, non-capsulated and divide by binary fission. They tested catalase-negative, but positive for cytochrome c-oxidase. Both strains form small white colonies on agar plates and grow aerobically and chemoorganotrophically on SSE/HD 1 : 10 medium, preferably utilizing organic acids and proteinaceous substrates. Strains 0125_3T and Swamp67T are mesophilic and grow optimally without NaCl addition at slightly alkaline conditions. Major fatty acids are C16 : 1  ω7c, C16 : 0 and C14 : 0. The major polar lipids are diphosphatidylglycerol, phosphatidylethanolamine and phosphatidyglycerol. The predominant respiratory quinone is Q-8. The G+C content for 0125_3T and Swamp67T was 67 and 66.1 %, respectively. The 16S rRNA gene analysis indicated that the closest relatives (<91 % sequence similarity) of strain 0125_3T were Nitrosospira multiformis ATCC 25196T, Methyloversatilis universalis FAM5T and Denitratisoma oestradiolicum AcBE2-1T, while Nitrosospira multiformis ATCC 25196T, Nitrosospira tenuis Nv1T and Nitrosospira lacus APG3T were closest to strain Swamp67T. The two novel strains shared 97.4 % 16S rRNA gene sequence similarity with one another and show low average nucleotide identity of their genomes (83.8 %). Based on the phenotypic, chemotaxonomic, genomic and phylogenetic analysis, we propose the two novel species Usitatibacter rugosus sp. nov (type strain 0125_3T=DSM 104443T=LMG 29998T=CECT 9241T) and Usitatibacter palustris sp. nov. (type strain Swamp67T=DSM 104440T=LMG 29997T=CECT 9242T) of the novel genus Usitatibacter gen. nov., within the novel family Usitatibacteraceae fam. nov.

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