scholarly journals Oceanitalea nanhaiensis gen. nov., sp. nov., an actinobacterium isolated from seawater

2012 ◽  
Vol 62 (Pt_10) ◽  
pp. 2490-2494 ◽  
Author(s):  
Yingnan Fu ◽  
Qipei Li ◽  
Keshao Liu ◽  
Yongle Xu ◽  
Yanan Wang ◽  
...  

A Gram-positive, motile, short-rod-shaped bacterium, designated strain JLT1488T, was isolated from the South China Sea and investigated in a taxonomic study using a polyphasic approach. The peptidoglycan type determined for strain JLT1488T was A4α with lysine as the diagnostic cell-wall diamino acid and an interpeptide bridge of l-Lys–l-Glu. The polar lipids consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, phosphatidylinositol mannosides, an unknown glycolipid and an unknown phospholipid. The only detected menaquinone was MK-8(H4), and the major fatty acids were summed feature 8 (C18 : 1ω7c/C18 : 1ω6c) , C16 : 0 and summed feature 3 (C16 : 1ω7c/C16 : 1ω6c); significant amounts of C12 : 0 3-OH, C10 : 0 and C19 : 0 cyclo ω8c were also present. The G+C content of the genomic DNA was 62.3 mol%. Comparison of the 16S rRNA gene sequence of strain JLT1488T with those of related type strains demonstrated that it represented a novel lineage within the family Bogoriellaceae , suborder Micrococcineae , being closely related to species of the genera Georgenia , Bogoriella and Cellulomonas (94.6–96.8 % sequence similarity). These results demonstrate that strain JLT1488T is a member of a new genus, for which the name Oceanitalea nanhaiensis gen. nov., sp. nov. is proposed. The type strain of the type species is JLT1488T ( = JCM 17755T = CGMCC 1.10826T).

2012 ◽  
Vol 62 (Pt_9) ◽  
pp. 2163-2168 ◽  
Author(s):  
Yong-Taek Jung ◽  
Ji-Hoon Kim ◽  
So-Jung Kang ◽  
Tae-Kwang Oh ◽  
Jung-Hoon Yoon

A Gram-staining-negative, non-flagellated, non-gliding and pleomorphic bacterial strain, designated DPG-25T, was isolated from seawater in a seaweed farm in the South Sea in Korea and its taxonomic position was investigated by using a polyphasic approach. Strain DPG-25T grew optimally at 25 °C, at pH 7.0–7.5 and in the presence of 2 % (w/v) NaCl. Flexirubin-type pigments were not produced. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain DPG-25T formed a cluster with the type strains of Actibacter sediminis , Aestuariicola saemankumensis and Lutimonas vermicola . Strain DPG-25T exhibited 16S rRNA gene sequence similarity values of 95.3, 93.1 and 93.6 % to the type strains of Actibacter sediminis , Aestuariicola saemankumensis and L. vermicola , respectively. Strain DPG-25T contained MK-6 as the predominant menaquinone and iso-C15 : 0 and iso-C17 : 0 3-OH as the major fatty acids. The major polar lipids detected in strain DPG-25T were phosphatidylethanolamine and one unidentified lipid. The DNA G+C content was 39.9 mol%. Differential phenotypic properties and the phylogenetic distinctiveness of strain DPG-25T demonstrated that this strain is distinguishable from Actibacter sediminis , Aestuariicola saemankumensis and L. vermicola . On the basis of the data presented here, strain DPG-25T represents a novel species in a novel genus of the family Flavobacteriaceae , for which the name Namhaeicola litoreus gen. nov., sp. nov. is proposed. The type strain of Namhaeicola litoreus is DPG-25T ( = KCTC 23702T  = CCUG 61485T).


2013 ◽  
Vol 63 (Pt_7) ◽  
pp. 2436-2441 ◽  
Author(s):  
Hang-Yeon Weon ◽  
Soo-Jin Kim ◽  
Yun-Hee Jang ◽  
Moriyuki Hamada ◽  
Tomohiko Tamura ◽  
...  

A Gram-positive, aerobic, rod-shaped bacterial strain, 5116S-4T, was isolated from an air sample collected in Suwon city, Republic of Korea. Phylogenetic analysis based on 16S rRNA gene sequences indicated that this strain was a new member of the family Microbacteriaceae . The sequence similarities of this strain to the members of the family Microbacteriaceae were less than 97 %, with the highest values observed with Cryobacterium mesophilum MSL-15T (96.3 %), Cryobacterium roopkundense RuGl7T (96.2 %), Labedella gwakjiensis KSW2-17T (96.2 %), Cryobacterium luteum Hh15T (96.2 %), Cryobacterium psychrophilum DSM 4854T (96.2 %), Klugiella xanthotipulae 44C3T (96.0 %) and Amnibacterium kyonggiense KSL51201-037T (96.0 %). According to the phylogenetic tree, strain 5116S-4T formed a cluster with A. kyonggiense KSL51201-037T, Labedella gwakjiensis KSW2-17T and Lysinimonas soli SGM3-12T (95.3 % sequence similarity) on the support of high bootstrap values. Cells were motile with single polar flagellum and showed optimum growth at 30 °C and pH 7 without NaCl. Predominant cellular fatty acids were anteiso-C15 : 0, iso-C16 : 0 and anteiso-C17 : 0. Polar lipids were diphosphatidylglycerol, dimannosyldiacylglycerol, phosphatidylglycerol, one unknown glycolipid, one unknown phospholipid and one unknown lipid. The acyl type of the cell-wall muramic acid was the acetyl type. Peptidoglycan was supposed to be the type B1 with 2,4-diaminobutyric acid on position 3. Strain 5116S-4T was clearly distinguishable from the phylogenetically related genera in the family Microbacteriaceae in terms of chemotaxonomic characteristics. On the basis of the chemotaxonomic and phylogenetic characteristics, a novel genus and species are proposed, Naasia aerilata gen. nov., sp. nov. The type strain of Naasia aerilata is 5116S-4T ( = KACC 15517T  = NBRC 108725T).


2015 ◽  
Vol 65 (Pt_5) ◽  
pp. 1421-1425 ◽  
Author(s):  
Syed G. Dastager ◽  
Rahul Mawlankar ◽  
Poonam Mual ◽  
Ashish Verma ◽  
Srinivasan Krishnamurthi ◽  
...  

A Gram-stain-positive, rod-shaped, endospore-forming, aerobic bacterium designated SGD-V-25T was isolated from Veraval sediment sample, India. Strain SGD-V-25T was capable of growing at 25–50 °C (optimum 37 °C), pH 6–12 (optimum pH 7.0) and with 0–5 % (w/v) NaCl. The taxonomic position of this strain was deduced using a polyphasic approach and the 16S rRNA gene sequence analysis showed that the isolate belongs to the phylum Firmicutes , forming the cluster with Bacillus badius MTCC 1548T, with which it shares highest similarity of 99.1 % with 13 nt differences. Other type strains of the genus Bacillus showed less than 96 % similarity. The cell wall contained meso-diaminopimelic acid as the diagnostic diamino acid. The polar lipid profile of strain SGD-V-25T showed the presence of diphosphatidylglycerol, phosphatidylglycerol, phsophoglycolipid and two aminophospholipids. The predominant isoprenoid quinone was MK-7. The major cellular fatty acids were iso-C15 : 0, anteiso-C15 : 0, anteiso-C17 : 0, iso-C16 : 0, C16 : 1ω11c and C16 : 0. The genomic DNA G+C content of strain SGD-V-25T was 37.6 mol%. On the basis of phenotypic characteristics, phylogenetic analysis and DNA–DNA hybridization, strain SGD-V-25T could be clearly distinguished from closely related members of the genus Bacillus , and the name Bacillus encimensis sp. nov., is proposed to accommodate this strain. The type strain is SGD-V-25T ( = NCIM 5513T = DSM 28241T).


2012 ◽  
Vol 62 (Pt_11) ◽  
pp. 2669-2673 ◽  
Author(s):  
P. Kämpfer ◽  
J. Schäfer ◽  
N. Lodders ◽  
K. Martin

A Gram-positive rod, designated 01-Gi-001T, was isolated from a wall colonized with moulds. The 16S rRNA gene sequence analysis clearly showed that the isolate belonged to the genus Microbacterium . On the basis of pairwise comparisons of 16S rRNA gene sequences, strain 01-Gi-001T was most closely related to Microbacterium hydrocarbonoxydans DSM 16089T (98.9 % sequence similarity), Microbacterium profundi Shh49T (98.7 %), Microbacterium phyllosphaerae DSM 13468T (98.3 %) and Microbacterium foliorum DSM 12966T (98.1 %). The diagnostic diamino acid of the peptidoglycan was ornithine. The major menaquinones detected were MK-13 and MK-12. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, one unknown phospholipid and one unknown glycolipid. The major fatty acids were anteiso-C15 : 0, iso-C16 : 0 and anteiso-C17 : 0, which were in agreement with those reported for other members of the genus Microbacterium . Physiological and biochemical characteristics and DNA–DNA relatedness between strain 01-Gi-001T and the type strains of its closest phylogenetic neighbours showed clear differences. For this reason, strain 01-Gi-001T ( = DSM 22178T = CCM 7640T) is proposed as the type strain of a novel species, Microbacterium murale sp. nov.


2013 ◽  
Vol 63 (Pt_11) ◽  
pp. 3975-3980 ◽  
Author(s):  
Xing-Xing Qiu ◽  
Yun-Zhuang Mou ◽  
Mei-Lin Zhao ◽  
Wen-Jiao Zhang ◽  
Dong Han ◽  
...  

Two halophilic archaeal strains, YC20T and XD15, were isolated from a marine solar saltern and an inland salt lake in China. Both had pleomorphic cells that lysed in distilled water, stained Gram-negative and formed red-pigmented colonies. They were neutrophilic, requiring at least 100 g NaCl l−1 and 0.5–95 g MgCl2 l−1 for growth at the optimum growth temperature of 37 °C. The major polar lipids of the two strains were phosphatidylglycerol (PG), phosphatidylglycerol phosphate methyl ester (PGP-Me), phosphatidylglycerol sulfate (PGS) and two major glycolipids chromatographically identical to sulfated mannosyl glucosyl diether (S-DGD-1) and mannosyl glucosyl diether (DGD-1), respectively. Trace amounts of two unidentified glycolipids were also detected. The 16S rRNA gene sequences of the two strains were 99.5 % identical and showed 94.0–95.9 % similarity to the most closely related members of the genus Halobellus of the family Halobacteriaceae . The rpoB′ gene sequence similarity between strains YC20T and XD15 was 98.2 % and these sequences showed 89.6–92.8 % similarity to those of the most closely related members of the genus Halobellus . The DNA G+C contents of strains YC20T and XD15 were 65.8 mol% and 65.4 mol%, respectively. The DNA–DNA hybridization value between strain YC20T and strain XD15 was 92 %, and the two strains showed low DNA–DNA relatedness to members of the genus Halobellus . The phenotypic, chemotaxonomic and phylogenetic properties suggest that strains YC20T and XD15 represent a novel species of the genus Halobellus , for which the name Halobellus inordinatus sp. nov. is proposed. The type strain is YC20T ( = CGMCC 1.12120T = JCM 18361T) and the other strain is XD15 ( = CGMCC 1.12236 = JCM 18648).


2014 ◽  
Vol 64 (Pt_6) ◽  
pp. 1876-1881 ◽  
Author(s):  
Sooyeon Park ◽  
Sung-Min Won ◽  
Doo-Sang Park ◽  
Jung-Hoon Yoon

A Gram-stain-negative, non-motile, rod-shaped bacterial strain, AH-M5T, which was isolated from a tidal flat sediment at Aphae Island in South Korea, was characterized taxonomically. Strain AH-M5T grew optimally at 25 °C, at pH 7.0–8.0 and in presence of 2.0 % (w/v) NaCl. Phylogenetic trees based on 16S rRNA gene sequences revealed that strain AH-M5T clustered coherently with the type strains of Mangrovimonas yunxiaonensis and Meridianimaribacter flavus , showing 93.4–94.3 % sequence similarity. The novel strain exhibited 16S rRNA gene sequence similarity values of less than 93.4 % to the type strains of other recognized species. Strain AH-M5T contained MK-6 as the predominant menaquinone and iso-C15 : 1 G, iso-C15 : 0, iso-C17 : 0 3-OH and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c) as the major fatty acids. The polar lipid profile of strain AH-M5T containing phosphatidylethanolamine and one unidentified lipid as major components was differentiated from those of the type strains of Mangrovimonas yunxiaonensis and Meridianimaribacter flavus . The DNA G+C content of strain AH-M5T was 34.8 mol%. Differential phenotypic properties, together with the phylogenetic and chemotaxonomic data, demonstrated that strain AH-M5T is distinguished from Mangrovimonas yunxiaonensis and Meridianimaribacter flavus . On the basis of the data presented, strain AH-M5T is considered to represent a novel genus and species within the family Flavobacteriaceae , for which the name Seonamhaeicola aphaedonensis gen. nov., sp. nov. is proposed. The type strain of the type species is AH-M5T ( = KCTC 32578T = CECT 8487T).


2014 ◽  
Vol 64 (Pt_8) ◽  
pp. 2841-2848 ◽  
Author(s):  
Marcelo Bertazzo ◽  
Maria del Carmen Montero-Calasanz ◽  
Manuel Martinez-Garcia ◽  
Cathrin Spröer ◽  
Peter Schumann ◽  
...  

A Gram-reaction-positive bacterial isolate, designated Tü 6233T, with rudimentary, coral-pink vegetative mycelium that formed neither aerial mycelium nor spores, was isolated from a Brazilian soil sample. Chemotaxonomic and molecular characteristics of the isolate matched those described for members of the genus Geodermatophilus . Cell-wall hydrolysates contained meso-diaminopimelic acid as the diagnostic diamino acid and galactose as the diagnostic sugar. The major fatty acids were iso-C16 : 0, iso-C15 : 0 and C17 : 1ω8c and the predominant menaquinone was MK-9(H4). The polar lipids consisted of diphosphatidylglycerol, phosphatidylethanolamine, hydroxyphosphatidylethanolamine, phosphatidylinositol, an unknown glycophospholipid and an unknown phospholipid. The DNA G+C content of the strain was 75.4 mol%. The 16S rRNA gene sequence identity with members of the genus Geodermatophilus was 94.2–98.7 %. Based on phenotypic, chemotaxonomic and phylogenetic data, strain Tü 6233T is proposed to represent a novel species, Geodermatophilus brasiliensis sp. nov., with the type strain Tü 6233T ( = DSM 44526T = CECT 8402T).


2020 ◽  
Vol 70 (5) ◽  
pp. 3361-3373 ◽  
Author(s):  
Xiao-meng Lv ◽  
Min Yang ◽  
Li-rong Dai ◽  
Bo Tu ◽  
Chen Chang ◽  
...  

A novel obligately anaerobic, thermophilic and formate-utilizing bacterium K32T was isolated from Shengli oilfield of China. Cells were straight rods (0.4–0.8 µm × 2.5–8.0 µm), Gram-stain-positive, non-spore-forming and slightly motile. Optimum growth occurred with pH of 7 and 0.5 g l–1 NaCl under temperature of 55–60 °C. Nitrate could be reduced into nitrite, syntrophic formate oxidation to methane and carbon dioxide occurred when co-culturing strain K32T and Methanothermobacter thermautotrophicus ΔH. The main cellular fatty acids were iso-C15 : 0 (24.0 %), anteiso-C15 : 0 (21.7 %), C16 : 0 (12.7 %) and C14 : 0 (10.8 %), and the main polar lipid was phosphatidylglycerol. The G+C content of the genomic DNA was 46.3 mol%. The 16S rRNA gene sequence of K32T shared ≤90.4 % of sequence similarity to closest type strains of Desulfitibacter alkalitolerans , Calderihabitans maritimus and members of the genus Moorella . Based on the phenotypic, biochemical and genotypic characterization, Zhaonella formicivorans gen. nov., sp. nov. is proposed with K32T (=CCAM 584T =DSM 107278T=CGMCC1.5297T) as the type strain, which is the first representative of Zhaonellaceae fam. nov. In addition, the order Thermoanaerobacterales and family Peptococcaceae were reclassified, and three novel families in the novel order of Moorellales ord. nov. were also proposed.


2020 ◽  
Vol 70 (7) ◽  
pp. 4165-4170 ◽  
Author(s):  
Ivan Arroyo-Herrera ◽  
Jessica Maldonado-Hernández ◽  
Fernando-Uriel Rojas-Rojas ◽  
Georgina Meza-Radilla ◽  
Violeta Larios-Serrato ◽  
...  

During the isolation of bacteria from the Agave L. rhizosphere in northeast Mexico, four strains with similar BOX-PCR patterns were collected. The 16S rRNA gene sequences of all four strains were very similar to each other and that of the type strains of Cupriavidus metallidurans CH34T (98.49 % sequence similarity) and Cupriavidus necator N-1T (98.35 %). The genome of strain ASC-9842T was sequenced and compared to those of other Cupriavidus species. ANIb and ANIm values with the most closely related species were lower than 95%, while the in silico DNA–DNA hybridization values were also much lower than 70 %, consistent with the proposal that they represent a novel species. This conclusion was supported by additional phenotypic and chemotaxonomic analyses. Therefore, the name Cupriavidus agavae sp. nov. is proposed with the type strain ASC-9842T (=LMG 26414T=CIP 110327T).


2014 ◽  
Vol 64 (Pt_7) ◽  
pp. 2424-2430 ◽  
Author(s):  
Kristin Mühldorfer ◽  
Stephanie Speck ◽  
Gudrun Wibbelt

Five bacterial strains isolated from bats of the family Vespertilionidae were characterized by phenotypic tests and multilocus sequence analysis (MLSA) using the 16S rRNA gene and four housekeeping genes (rpoA, rpoB, infB, recN). Phylogenetic analyses of individual and combined datasets indicated that the five strains represent a monophyletic cluster within the family Pasteurellaceae . Comparison of 16S rRNA gene sequences demonstrated a high degree of similarity (98.3–99.9 %) among the group of bat-derived strains, while searches in nucleotide databases indicated less than 96 % sequence similarity to known members of the Pasteurellaceae . The housekeeping genes rpoA, rpoB, infB and recN provided higher resolution compared with the 16S rRNA gene and subdivided the group according to the bat species from which the strains were isolated. Three strains derived from noctule bats shared 98.6–100 % sequence similarity in all four genes investigated, whereas, based on rpoB, infB and recN gene sequences, 91.8–96 % similarity was observed with and between the remaining two strains isolated from a serotine bat and a pipistrelle bat, respectively. Genome relatedness as deduced from recN gene sequences correlated well with the results of MLSA and indicated that the five strains represent a new genus. Based on these results, it is proposed to classify the five strains derived from bats within Vespertiliibacter pulmonis gen. nov., sp. nov. (the type species), Vespertiliibacter genomospecies 1 and Vespertiliibacter genomospecies 2. The genus can be distinguished phenotypically from recognized genera of the Pasteurellaceae by at least three characteristics. All strains are nutritionally fastidious and require a chemically defined supplement with NAD for growth. The DNA G+C content of strain E127/08T is 38.2 mol%. The type strain of Vespertiliibacter pulmonis gen. nov., sp. nov. is E127/08T ( = CCUG 64585T = DSM 27238T). The reference strains of Vespertiliibacter genomospecies 1 and 2 are E145/08 and E157/08, respectively.


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