- Volume 66, Issue 10, 2016

A novel Gram-stain-negative, aerobic and rod-shaped bacterial strain, designated 65T, was isolated from surface-sterilized root tissue of maize, collected from Fangshan District of Beijing, People’s Republic of China, and was subjected to a taxonomic study by using a polyphasic approach. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain 65T belonged to the genus Dyadobacter and had highest 16S rRNA gene sequence similarity to Dyadobacter jiangsuensis CGMCC 1.12969T (99.1 %), Dyadobacter beijingensis CGMCC 1.6375T (98.8 %), Dyadobacter fermentans DSM 18053T (98.6 %) and Dyadobacter soli KCTC 22481T (98.6 %). However, the new isolate exhibited relatively low levels of DNA–DNA relatedness with respect to D. jiangsuensis CGMCC 1.12969T (18.2±1.3 %), D. beijingensis CGMCC 1.6375T (14.2±2.0 %), D. fermentans DSM 18053T (14.1±2.0 %) and D. soli KCTC 22481T (13.8±0.6 %). The predominant respiratory quinone was menaquinone-7 (MK-7) and the major cellular fatty acids were summed feature 3 (C16  :  1 ω7c and/or iso-C15 : 0 2-OH), iso-C15  :  0, iso-C17  :  0 3-OH, C16  :  1 ω5c, iso-C15  :  0 3-OH, C16  :  0 3-OH and C16 : 0. The polar lipid profile of strain 65T revealed the presence of phosphatidylethanolamine, four aminolipids and two unidentified phospholipids. The DNA G+C content was 46.6 mol%. The results of physiological and biochemical tests and the differences in the fatty acid profiles allowed the clear phenotypic differentiation of strain 65T from closely related species of the genus Dyadobacter . Strain 65T thus represents a novel species within the genus Dyadobacter , for which the name Dyadobacter endophyticus sp. nov. is proposed. The type strain is 65T (=CGMCC 1.15288T=DSM 100786T).

A Gram-stain-negative bacterium was isolated from Lake Michigan water. 16S rRNA gene sequence analysis revealed that strain 1458T had a sequence similarity to Filimonas lacunae YT21T, Sediminibacterium goheungense HME7863T, Parasegetibacter terrae SGM2-10T, Sediminibacterium ginsengisoli DCY13T, Terrimonas ferruginea DSM 30193T, Lacibacter cauensis NJ-8T, Flavihumibacter solisilvae 3-3T, Parasegetibacter luojieneis RHYL-37T, Vibrionimonas magnilacihabitans MU-2T and Parafilimonas terrae 5GHs7-2T with values of 93.4, 92.3, 91.9, 91.9, 91.8, 91.6, 91.6, 91.6, 91.5 and 90.4 %, respectively. The primary cellular fatty acids were iso-C15 : 0, iso-C17 : 0 3-OH, iso-C15 : 1G and summed feature 3 (iso-C15 : 0 2-OH/C16 : 1ω7c). The primary polar lipids were phosphatidylethanolamine and an unidentified polar lipid only detectable after total polar lipid staining. The quinone system was menaquinone MK-7, and in the polyamine pattern, sym-homospermidine was predominant. Additional phenotypic characteristics included growth at 15 to 40 °C and pH 5.0 to 8.0, a salt tolerance range of 0 to 2.0 % (w/v), production of orange cell-bound pigment flexirubin, and gliding motility. After phenotypic, chemotaxonomic and molecular analyses, strain 1458T was identified as a novel species of the genus Filimonas, for which the name Filimonas aurantiibacter sp. nov. is proposed. The type strain is 1458T (=NRRL B-65305T=LMG 29039T). An emended description of the genus Filimonas is also provided.

Strain TBZ30T was isolated from soil of a heavy-metal-contaminated paddy field. Cells of strain TBZ30T were Gram-staining-negative, rod-shaped, non-motile and non-spore-forming. The isolate was strictly aerobic, pink-pigmented, catalase- and oxidase-positive and produced exopolysaccharides. On the basis of 16S rRNA gene phylogeny, strain TBZ30T belonged to the genus Mucilaginibacter and appeared most closely related to Mucilaginibacter gynuensis YC7003T (95.8 %), Mucilaginibacter litoreus BR-18T (95.4 %) and Mucilaginibacter mallensis MP1X4T (95.4 %). Strain TBZ30T contained menaquinone-7 as the only ubiquinone. The main cellular fatty acids included summed feature 3 (C16 : 1 ω7c and/or iso-C15 : 0 2-OH), iso-C15 : 0, C16 : 0, iso-C17 : 0 3-OH and C16 : 1 ω5c. The polar lipids were phosphatidylethanolamine, an unidentified phospholipid, two unidentified aminophospholipids, four unidentified aminolipids, three unidentified lipids and two unidentified glycolipids. The genomic DNA G+C content was 49.0 mol%. On the basis of polyphasic taxonomy analyses, strain TBZ30T represents a novel species of the genus Mucilaginibacter , for which the name Mucilaginibacter pedocola sp. nov. is proposed. The type strain is TBZ30T (=KCTC 42833T=CCTCC AB 2015301T).

A ginsenoside-transforming bacterium, designated Gsoil 1550T, was isolated from soil of a ginseng field and subjected to a polyphasic taxonomic analysis. Colonies of strain Gsoil 1550T were yellow, of low convexity and with regular margin. Cells were long rods, 0.5–1.2 µm wide and 1.6–3 µm long. The isolate grew at 10–37 °C and at pH 5–9 on R2A agar medium; maximum growth occurred at 30 °C and pH 6–7. Phylogenetic study based on the 16S rRNA gene sequence positioned Gsoil 1550T in a distinct lineage in the family Chitinophagaceae , sharing 92.5–92.8 % sequence similarity with members of the closely related genera Terrimonas , Parafilimonas , Sediminibacterium and Parasegetibacter . Strain Gsoil 1550T contained menaquinone MK-7 as the predominant quinone, and iso-C15 : 0, iso-C17 : 0 3-OH, C16 : 0 and iso-C15 : 1 G as major fatty acids. The DNA G+C content was 44.6 mol%. Strain Gsoil 1550T could be distinguished from other members of the family Chitinophagaceae by a number of chemotaxonomic and phenotypic characteristics. The major polar lipid of strain Gsoil 1550T was phosphatidylethanolamine. Based on this polyphasic taxonomic analysis, strain Gsoil 1150T represents a novel species within a new genus, for which the name Panacibacter ginsenosidivorans gen. nov., sp. nov. is proposed. The type strain of Panacibacter ginsenosidivorans is Gsoil 1550T (=KCTC 12658T=JCM 31452T).

A Gram-staining-negative, strictly aerobic, non-spore-forming, rod-shaped bacterium, designated WG4T, was isolated from soil of the Tianmen Mountain located in Hunan province, PR China. 16S rRNA gene sequence analysis showed that the strain belongs to the genus Chryseobacterium in the family Flavobacteriaceae , with 97.4 % and 97.1 % sequence identities to Chryseobacterium anthropi NF 1366T and Chryseobacterium haifense H38T, respectively. In comparison with the other strains representing the genus Chryseobacterium , the 16S rRNA gene sequence identities were less than 97.0 %. The DNA–DNA relatedness values were 63.3 % (±1) between C. anthropi NF 1366T and strain WG4T and 62.7 % (±2) between C. haifense DSM 19056T and strain WG4T. The DNA G+C content of strain WG4T was 37.7 mol%. The predominant fatty acids of strain WG4T were iso-C15 : 0, anteiso-C15 : 0 and iso-C17 : 0 3-OH. The major polar lipids were phosphatidylethanolamine, three unidentified lipids and two unidentified aminolipids. The major menaquinone of strain WG4T was menaquinone 6. Strain WG4T showed some unique physiological and biochemical characteristics, such as being negative for gelatin hydrolysis, and valine arylamidase and α-glucosidase activity, and positive for acid production from cellobiose. Based on the differentiating phylogenetic inference and biochemical data, strain WG4T represents a novel species, for which the name Chryseobacterium montanum sp. nov. is proposed, with the type strain WG4T (=KCTC 52204T=CCTCC AB 2016058T).

A pink-pigmented, Gram-stain-negative, rod-shaped, non-spore-forming bacterial strain, PP-F2F-G21T, was isolated from the phyllosphere of Galium album. Phylogenetic analysis of the nearly full-length 16S rRNA gene sequence of strain PP-F2F-G21T showed the closest relationship to type strains of the species Mucilaginibacter lutimaris (97.7 %), Mucilaginibacter soli (97.3 %) and Mucilaginibacter rigui (97.1 %). Sequence similarities to all other type strains were below 97 %. The predominant cellular fatty acids of strain PP-F2F-G21T are C16 : 1 ω7c/iso-C15 : 0 2-OH (measured as summed feature 3 fatty acids) and iso-C15 : 0 followed by iso-C17 : 0 3-OH, C16 : 1 ω5c and C16 : 0. The major compound in the polyamine pattern was sym-homospermidine and the diamino acid of the peptidoglycan was meso-diaminopimelic acid. The quinone system was exclusively composed of menaquinone MK-7. The polar lipid profile contained the major lipid phosphatidylethanolamine and in addition 18 unidentified lipids. Based on phylogenetic, chemotaxonomic and phenotypic analyses, we propose a novel species of the genus Mucilaginibacter named Mucilaginibacter phyllosphaerae sp. nov. The type strain is PP-F2F-G21T (=CCM 8625T=CIP 110921T=LMG 29118T).

A bacterial strain, designated T16R-265T, was isolated from rhizosphere of tomato in Buyeo-gun, Chungcheongnam-do, South Korea. The strain was Gram-stain-negative, aerobic, non-flagellated and rod- or long-rod-shaped. It grew at the range of 10–40 °C (optimum 28–30 °C), pH 6.0–9.0 (optimum pH 7.0) and with 0–3 % (w/v) NaCl (optimum 0 %). 16S rRNA gene sequence analysis showed that strain T16R-265T had the highest sequence similarity (98.0 %) with Flavitalea soli KIS20-3T and low sequence similarities of below 95 % with all other taxa. The phylogenetic tree revealed that the strain formed a robust monophyletic line with Flavitalea soli KIS20-3T separable from other clades. The predominant quinone of strain T16R-265T was MK-7, the polar lipids consisted of large amounts of phosphatidylethanolamine and an unknown lipid, and the major fatty acids were iso-C15 : 0, iso-C17 : 0 3-OH and iso-C15 : 1 G. DNA–DNA hybridization values with Flavitalea soli KACC 17319T were below 70 %. The DNA G+C content of strain T16R-265T is 46.2 mol%. Based on phylogenetic evidence and the results of phenotypic, genotypic and chemotaxonomic analyses, strain T16R-265T represents a novel species of a new genus, for which the name Pseudoflavitalea rhizosphaerae gen. nov., sp. nov. is proposed. The type strain of the type species is T16R-265T (=KACC 18655T=NBRC 111880T). We also propose the reclassification of Flavitalea soli as Pseudoflavitalea soli comb. nov. (type strain KIS20-3T=KACC 17319T=JCM 19937T).

A Gram-stain-negative, aerobic, non-flagellated, motile by gliding and ovoid or rod-shaped bacterial strain, designated YKTF-7T, was isolated from a tidal flat sediment on the Yellow Sea, South Korea. Strain YKTF-7T grew optimally at pH 7.0–8.0, at 30–37 °C and in the presence of 0.5–2.0 % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain YKTF-7T fell within the clade comprising the type strains of species of the genus Pontibacter , clustering with the type strains of Pontibacter odishensis and Pontibacter korlensis with which it exhibited 98.0–98.7 % sequence similarity. Strain YKTF-7T exhibited 16S rRNA gene sequence similarities of 94.7–96.8 % to the type strains of the other species of the genus Pontibacter and of less than 91.7 % to those of other recognized species. Strain YKTF-7T contained MK-7 as the predominant menaquinone and summed feature 4 (iso-C17 : 1 I and/or anteiso-C17 : 1 B) and iso-C15 : 0 as the major fatty acids. The major polar lipids were phosphatidylethanolamine and two unidentified lipids. The DNA G+C content of strain YKTF-7T was 54.0 mol%, and its mean DNA–DNA relatedness values with the type strains of P . odishensis and P . korlensis were 25 and 14 %, respectively. Differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain YKTF-7T is separated from recognized species of the genus Pontibacter . On the basis of the data presented, strain YKTF-7T is considered to represent a novel species of the genus Pontibacter , for which the name Pontibacter litorisediminis sp. nov. is proposed. The type strain is YKTF-7T(=KCTC 52252T=NBRC 112298T).

A Gram-stain-negative, aerobic, non-spore-forming, non-flagellated, non-gliding and rod-shaped bacterial strain, HPTF-2T, was isolated from a tidal flat in the Yellow Sea in South Korea, and subjected to a taxonomic study using a polyphasic approach. Strain HPTF-2T grew optimally at 30 °C, at pH 7.0–8.0 and in the presence of 2.0 % (w/v) NaCl. Phylogenetic trees based on 16S rRNA gene sequences revealed that strain HPTF-2T fell within the clade comprising the type strains of species of the genus Maribacter . Strain HPTF-2T exhibited 16S rRNA gene sequence similarity values of 97.1–98.0 % to the type strains of Maribacter stanieri , M. orientalis, M. arcticus, M. dokdonensis , M. confluentis, M. aquivivus, M. sedimenticola and M. caenipelagi , and of 95.1–96.7 % to the type strains of the other species of the genus Maribacter . Strain HPTF-2T contained MK-6 as the predominant menaquinone and iso-C17 : 0 3-OH, iso-C15 : 0 and iso-C15 : 1 G as the major fatty acids. The major polar lipids of strain HPTF-2T were phosphatidylethanolamine and two unidentified lipids. Mean DNA–DNA relatedness values of strain HPTF-2T with the type strains of the nine phylogenetically related species of the genus Maribacter were 10–26 %. The DNA G+C content of strain HPTF-2T was 38.4 mol%. The differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain HPTF-2T is separated from other species of the genus Maribacter . On the basis of the data presented, strain HPTF-2T represents a novel species of the genus Maribacter , for which the name Maribacter litorisediminis sp. nov. is proposed. The type strain is HPTF-2T (=KCTC 52251T=NBRC 112297T).

A Gram-stain-negative, facultatively anaerobic, moderately halophilic, filamentous, non-motile bacterium, designated FA102T, was isolated from marine sediment from the coast of Weihai, PR China. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain FA102T formed a distinct evolutionary lineage within the family Marinifilaceae and its closest relative was Marinifilum fragile JCM 15579T (93.2 % sequence similarity). The DNA G+C content of the novel strain was 36.5 mol%. The predominant cellular fatty acids and respiratory quinone were iso-C15 : 0 and iso-C15 : 0 3-OH, and MK-7, respectively. On the basis of the phylogenetic, phenotypic and physiological data, strain FA102T represents a novel genus and species, for which the name Ancylomarina subtilis gen. nov., sp. nov. is proposed. The type strain of Ancylomarina subtilis is FA102T (=KCTC 42257T=DSM 28825T=CICC 10902T). Furthermore, a new order named Marinilabiliales is proposed to accommodate three families previously classified in the order Bacteroidales . Marinilabiliales ord. nov. encompasses the families Marinilabiliaceae , Prolixibacteraceae and Marinifilaceae.

A novel aerobic, yellow-pigmented, Gram-stain-negative, rod-shaped bacterial strain, CUG00004T, was isolated from a soil sample. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain CUG00004T was a member of the genus Flavobacterium and showed high sequence similarity with Flavobacterium soli DSM 19725T (96.9 %) and Flavobacterium glaciei CGMCC 0499T (95.6 %). The level of DNA–DNA relatedness between strain CUG00004T and F . soli DSM 19725T and F . glaciei CGMCC 1.5380T was 42.5 and 43.4 %, respectively. Strain CUG00004T was moderately alkaliphilic and grew optimally at pH 8.0, at 28 °C and in the presence of 0–1 % (w/v) NaCl. This organism contained menaquinone-6 (MK-6) as the only isoprenoid quinone and iso-C15 : 0, iso-C17 : 0 3-OH, anteiso-C15 : 0 and summed feature 9 (comprising iso-C17 : 1 ω9c and/or C16 : 0 10-methyl) as the major fatty acids. The DNA G+C content of strain CUG00004T was 36.3 mol%. On the basis of phylogenetic, physiological and chemotaxonomic analyses, strain CUG00004T represents a novel species, for which the name Flavobacterium terriphilum sp. nov. is proposed. The type strain is CUG00004T (=CCTCC AB 2014151T=KCTC 42876T).

Two Gram-stain-positive strains, VE80T and VE116, which were resistant to vancomycin, were isolated from retail chicken meat and liver in Ho Chi Minh, Vietnam, respectively. These strains were characterized by sequence analyses of 16S rRNA, RNA polymerase α-subunit (rpoA), ATP synthase α-subunit (atpA), and phenylalanyl-tRNA synthase α-subunit (pheS) genes, determination of DNA G+C content, cellular fatty acid methyl ester analysis, DNA–DNA hybridization, and conventional morphological and biochemical tests. Strains VE80T and VE116 had 99.6 % 16S rRNA gene sequence similarity with Enterococcus canintestini LMG 13590T, and 99.1 % 16S rRNA gene sequence similarity with Enterococcus dispar ATCC 51266T. However, the two isolates could be clearly differentiated from these reference strains by the low sequence similarities (86.1–86.8 %) of the atpA gene, low DNA–DNA relatedness (<22.8 %), and differences in the production of acid from melezitose and methyl α-d-glucoside. Based on the results obtained in the present study, these two isolates are considered to represent a novel species of the genus Enterococcus , for which the name Enterococcus saigonensis sp. nov., is proposed. The type strain is VE80T (=JCM 31193T=CCUG 68827T).

A taxonomic investigation was performed on a Gram-stain-positive coccus, designated strain BSN307T, isolated from gaur (Indian bison, Bos gaurus) dung based on phenotypic and molecular approaches. Based on the biochemical tests, cellular morphology and 16S rRNA gene sequence similarity, this strain was found to be a member of the genus Lactococcus and closely related to Lactococcus garvieae ATCC 49156T (99.6 % 16S rRNA gene sequence similarity) and L.actococcus formosensis 516T (99.0 %). However, DNA–DNA hybridization studies showed that the level of relatedness between strain BSN307T and L. garvieae ATCC 49156T was 75.8 %, suggesting that it represented a novel subspecies of L. garvieae . The inability to grow in brain heart infusion (BHI) medium at pH 9.6, in tryptic soy agar (TSA) with 4 % (w/v) NaCl and at 42 °C (MRS agar) clearly differentiated BSN307T from L. garvieae ATCC 49156T. Rep-PCR fingerprint patterns, substantial differences in summed feature 8 (C18 : 1 ω7c/C18 : 1 ω6c), C19 : 0 cyclo ω8c and C16 : 0 also differentiated strain BSN307T from the reference strain of L. garvieae. Moreover, analysis of the housekeeping genes pheS and rpoA revealed sequence similarities that were at the limit for species differentiation (92.2 and 97.8 %, respectively). Combined genotypic and phenotypic data indicate that strain BSN307T represents a subspecies of L. garvieae for which the name Lactococcus garvieae subsp. bovis subsp. nov. is proposed. The type strain is BSN307T (=DSM 100577 T=MCC 2824T=KCTC 21083T).

A Gram-stain-positive coccus, strain JC304T, was isolated from a saltern of Nari along the Bhavnagar Coast, Gujarat, India. The 16S rRNA gene sequence analysis and sequence comparison data indicated that JC304T represented a member of the genus Salinicoccus and was most closely related to Salinicoccus roseus 9T (99.6 %), Salinicoccus luteus YIM 70202T (97.0 %), Salinicoccus hispanicus J-82T (97.0 %) and the remaining species of the genus Salinicoccus (<97 %). Genome relatedness based on DNA–DNA hybridization of JC304T with the type strains of the most closely related species was less than 46 % and the ΔTm was >5 °C indicating that the strain represents a novel species of the genus Salinicoccus . Independent and concatenated phylogenetic analysis of recA/fusA gene translated product showed a clear distinction of JC304T from its phylogenetic neighbors. Diphosphotidylglycerol, phosphatidylglycerol, an unidentified glycolipid and three unidentified lipids (L1, L2 and L3) were the polar lipids of JC304T. Iso-C15 : 0 and anteiso-C15 : 0 were the major (>10 %) fatty acids in strain JC304T. The cell-wall amino acids were l-lysine and d-glycine. Hopanoids were not detected. The major isoprenoid quinone was menaquinone (MK-6). The DNA G+C content of JC304T was 48 mol%. On the basis of physiological, genotypic, phylogenetic and chemotaxonomic analyses, strain JC304T is considered to represent a novel species of the genus Salinicoccus , for which the name Salinicoccus amylolyticus sp. nov. is proposed. The type strain is JC304T (=KCTC 33661T=LMG 28757T).

A Gram-stain-negative, spore-forming, anaerobic bacterium designated strain RU4T was isolated from a saprolite core collected from Oak Ridge, Tennessee, USA. Cells were slightly curved rods and exhibited an outer membrane exterior to a thin cell wall. Strain RU4T formed heat-resistant endospores in late-log phase and stationary phase cultures. Under anaerobic conditions, strain RU4T grew by fermenting fumarate and maleate, but did not grow on glucose, glycerol, pyruvate, lactate, succinate, citrate, formate, acetate, propionate, butyrate or valerate. Strain RU4T did not reduce sulfate or ferric iron. The main cellular fatty acids were C17 : 0 cyclo, C16 : 0 and C15 : 0. The DNA G+C content was 52 mol%. Analysis of the 16S rRNA, rpoB, recA, infB, gyrB and atpD gene sequences indicated that the isolate is related to members of the family Sporomusaceae . Based on 92 % sequence similarity of the 16S rRNA gene to its closest relatives in the family Sporomusaceae and divergent physiological traits, the newly-cultivated isolate was assigned to a novel species of a new genus, Anaerosporomusa subterranea gen. nov., sp. nov. The type strain of Anaerosporomusa subterranea is RU4T (=DSM 29728T=ATCC BAA-2723T).

A Gram-stain-negative, rod-shaped, endospore-forming bacterium, strain LOOC204T, was isolated from corn silage that had been prepared and stored in Hokkaido, Japan. The isolate grew well at 4–37 °C and at pH 6.0–8.5. The major cellular fatty acids were anteiso-C15 : 0, C16 : 0, iso-C14 : 0 and iso-C16 : 0. The major menaquinone was MK-7. Diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, three unidentified aminophospholipids, one unidentified phospholipid, two unidentified aminolipids and three unidentified lipids were detected as the cellular polar lipids. The genomic DNA G+C content of LOOC204T was 52.2±0.7 mol%. A comparative 16S rRNA gene sequence analysis showed that LOOC204T represented a member of the genus Paenibacillus , and high levels of sequence similarity of LOOC204T with Paenibacillus borealis KK19T (97.5 %) and Paenibacillus jilunlii Be17T (97.4 %) were found. Based on sequence analysis of the RNA polymerase β subunit (rpoB) gene, LOOC204T was clearly separated from its phylogenetic neighbors in the genus Paenibacillus . DNA–DNA hybridisation experiments showed that LOOC204T displayed less than 40 % reassociation values toward its nearest phylogenetic neighbours of the genus Paenibacillus , indicating the unique taxonomic status of LOOC204T. Based on these data, we conclude that strain LOOC204T represents a novel species of the genus Paenibacillus , named Paenibacillus silagei sp. nov. The type strain is LOOC204T (=JCM 30974T=DSM 101953T).

A Gram-stain-positive, catalase-negative, coccus-shaped organism was isolated from oral cavity samples collected from healthy elephants. The isolated strain, NUM 2404T, was tentatively identified as a streptococcal species based on the results of biochemical tests. Although a comparative 16S rRNA gene sequence analysis suggested the classification of this organism into the genus Streptococcus , it did not correspond to any recognized species of the genus. Strain NUM 2404T was related most closely to Streptococcus saliviloxodontae NUM 6306T with 95.8 % 16S rRNA gene sequence similarity, but the phylogenetic tree reconstructed based on the 16S rRNA gene sequence showed that NUM 2404T clustered with Streptococcus mutans NCTC 10449T and Streptococcus troglodytae TKU 31T. Comparative sequence analysis based on two housekeeping genes, groEL, which encodes the 60 kDa heat-shock protein, and rpoB, encoding the β subunit of RNA polymerase, of NUM 2404T indicated that it was most closely related to those of Streptococcus orisratti A63T and Streptococcus sobrinus ATCC 33478T with 82.7 and 85.1 % sequence similarities, respectively. On the basis of genotypic and phenotypic differences, it is proposed that the novel isolate be classified in the genus Streptococcus as representative of a novel species, Streptococcus dentiloxodontae sp. nov. The type strain is NUM 2404T (=JCM 19284T=DSM 27381T).

Two novel Gram-stain-positive, facultatively anerobic, rod-shaped, motile, endospore-forming bacterial strains, 9DMT and 6DM, were isolated from Tuticorn, India. The high 16S rRNA gene sequence similarity (99.9 %) and DNA–DNA relatedness (88±2 %) indicated that strains 9DMT and 6DM were members of a single species. Based on 16S rRNA gene sequence analysis these strains were identified as belonging to the genus Pontibacillus and were related most closely to the type strains of Pontibacillus chungwhensis (99.7 % sequence similarity) and Pontibacillus marinus (97.9 %). The DNA G+C content of strains 9DMT and 6DM was 41.6 and 41.4 mol%, respectively. However, the level of DNA–DNA relatedness of these strains with P. chungwhensis KCTC 3890T and P. marinus KCTC 3917T was only 40.9 + 0.8 and 39.8 + 0.9 %, respectively. Strains 9DMT and 6DM were facultative anaerobes with optimal growth at 37 °C, at pH 7.0–8.0 and with 2–3 % (w/v) NaCl. The cell-wall peptidoglycan of strain 9DMT contained meso-diaminopimelic acid. Polar lipids included diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, a phospholipid and three unknown lipids. The isoprenoid quinone was MK-7. Major fatty acids of strain 9DMT were anteiso-C15 : 0, iso-C15 : 0, iso-C16 : 0 and anteiso-C17 : 0. The results of phylogenetic, chemotaxonomic and biochemical tests allowed the clear differentiation of strains 9DMT and 6DM, which are considered to represent a novel member of the genus Pontibacillus , for which the name Pontibacillus salipaludis sp. nov. is proposed. The type strain is 9DMT (= KCTC 33742T=LMG 29102T= CGMCC 1.15353T).

Species of the genus Trichococcus share high similarity of their 16S rRNA gene sequences (>99 %). Digital DNA–DNA hybridization values (dDDH) among type strains of all described species of the genus Trichococcus ( T. flocculiformis DSM 2094T , T. pasteurii DSM 2381T , T. collinsii DSM 14526T , T. palustris DSM 9172T, and T. patagoniensis DSM 18806T) indicated that Trichococcus sp. strain R210T represents a novel species of the genus Trichococcus . The dDDH values showed a low DNA relatedness between strain R210T and all other species of the genus Trichococcus (23–32%). Cells of strain R210T were motile, slightly curved rods, 0.63–1.40×0.48–0.90 µm and stained Gram-positive. Growth was optimal at pH 7.8 and at temperature of 30 °C. Strain R210T could utilize several carbohydrates, and the main products from glucose fermentation were lactate, acetate, formate and ethanol. The genomic DNA G+C content of strain R210T was 47.9 mol%. Based on morphological, physiological and biochemical characteristics along with measured dDDH values for all species of the genus Trichococcus , it is suggested that strain R210T represents a novel species within the genus Trichococcus , for which the name Trichococcus ilyis sp. nov. is proposed. The type strain is R210T (=DSM 22150T=JCM 31247T).