scholarly journals Thalassospira xianhensis sp. nov., a polycyclic aromatic hydrocarbon-degrading marine bacterium

2010 ◽  
Vol 60 (5) ◽  
pp. 1125-1129 ◽  
Author(s):  
Baisuo Zhao ◽  
Hui Wang ◽  
Ruirui Li ◽  
Xinwei Mao

A polycyclic aromatic hydrocarbon-degrading marine bacterium, designated strain P-4T, was isolated from oil-polluted saline soil in Xianhe, Shangdong Province, China. Strain P-4T was Gram-negative-staining with curved to spiral rod-shaped cells and grew optimally with 3–6 % (w/v) NaCl and at 30 °C. The predominant fatty acids were C18 : 1 ω7c (35.0 %), C16 : 0 (25.0 %), C16 : 1 ω7c (17.9 %), C14 : 0 (6.2 %) and C17 : 0 cyclo (5.2 %). The major respiratory quinone was Q-9 and the genomic DNA G+C content was 61.2±1.0 mol%. Phylogenetic analysis based on the 16S rRNA gene sequence indicated that strain P-4T belonged to the genus Thalassospira of the class Alphaproteobacteria. DNA–DNA hybridization with Thalassospira xiamenensis DSM 17429T showed relatedness of 36.0 %, and lower values were obtained with respect to other Thalassospira species. Based on physiological and biochemical tests and 16S rRNA gene sequence analysis as well as DNA–DNA relatedness, strain P-4T should be placed in the genus Thalassospira within a novel species. The name Thalassospira xianhensis sp. nov. is proposed, with P-4T (=CGMCC 1.6849T =JCM 14850T) as the type strain.

2010 ◽  
Vol 60 (10) ◽  
pp. 2293-2297 ◽  
Author(s):  
Maya Shnit-Orland ◽  
Alex Sivan ◽  
Ariel Kushmaro

A marine bacterial strain, designated fav-2-10-05T, was isolated from the mucus layer of a coral of the genus Favia, collected from the coral reef in the Gulf of Eilat, Israel (29.5 ° N 34.9 ° E). On the basis of 16S rRNA gene sequence comparisons, strain fav-2-10-05T was affiliated with the family Shewanellaceae. The closest relatives of strain fav-2-10-05T were Shewanella marisflavi SW-117T (96.0 % 16S rRNA gene sequence similarity) and Shewanella haliotis DW-1T (95.9 %). Strain fav-2-10-05T was Gram-negative, rod-shaped and motile by means of a single polar flagellum and formed yellow–brownish colonies within 2 days of incubation at 26 °C. Strain fav-2-10-05T demonstrated antibacterial activity against indicator strains and grew in the presence of 0.5–8.0 % (w/v) NaCl and at 10–37 °C. The major fatty acids were C17 : 1 ω8c (21.6 %), iso-C15 : 0 (18.6 %), C15 : 0 (9.1 %) and iso-C13 : 0 (8.9 %). The DNA G+C content was 49.1 mol%. The phylogenetic and phenotypic analyses of strain fav-2-10-05T suggested that it belongs to a novel species of the genus Shewanella, for which the name Shewanella corallii sp. nov. is proposed. The type strain is fav-2-10-05T (=LMG 24563T =DSM 21332T).


2012 ◽  
Vol 62 (2) ◽  
pp. 370-375 ◽  
Author(s):  
Yan-Jiao Zhang ◽  
Xi-Ying Zhang ◽  
Hui-Lin Zhao ◽  
Ming-Yang Zhou ◽  
Hui-Juan Li ◽  
...  

A protease-producing marine bacterium, designated CF12-14T, was isolated from sediment of the South China Sea. Phylogenetic analysis of the 16S rRNA gene sequence revealed that strain CF12-14T formed a separate lineage within the genus Idiomarina (Gammaproteobacteria). The isolate showed the highest 16S rRNA gene sequence similarity with Idiomarina salinarum ISL-52T (94.7 %), Idiomarina seosinensis CL-SP19T (94.6 %) and other members of the genus Idiomarina (91.9–94.6 %). Cells were Gram-negative, aerobic, flagellated, straight or slightly curved, and often formed buds and prosthecae. Strain CF12-14T grew at 4–42 °C (optimum 30–35 °C) and with 0.1–15 % (w/v) NaCl (optimum 2–3 %). The isolate reduced nitrate to nitrite and hydrolysed DNA, but did not produce acids from sugars. The predominant cellular fatty acids were iso-C15 : 0 (27.4 %), iso-C17 : 0 (16.0 %) and iso-C17 : 1ω9c (15.8 %). The major polar lipids were phosphatidylethanolamine, diphosphatidylglycerol and phosphatidylglycerol. The major respiratory quinone was ubiquinone 8. The DNA G+C content was 50.4 mol%. The phylogenetic, phenotypic and chemotaxonomic data supported the conclusion that CF12-14T represents a novel species of the genus Idiomarina, for which the name Idiomarina maris sp. nov. is proposed. The type strain is CF12-14T ( = CCTCC AB 208166T = KACC 13974T).


2010 ◽  
Vol 60 (2) ◽  
pp. 413-416 ◽  
Author(s):  
Quanfeng Liang ◽  
Gareth Lloyd-Jones

This study characterized strain WP01T, a Gram-staining-negative, rod-shaped, aerobic bacterium isolated from a polycyclic aromatic hydrocarbon-contaminated soil in New Zealand. Strain WP01T shared many characteristics of the genus Sphingobium: the predominant respiratory quinone (89 %) was ubiquinone with ten isoprene units (Q-10); the major fatty acids were C18 : 1 ω7c, C16 : 1 ω7c, C16 : 0 and C14 : 0 2-OH; spermidine was the major polyamine; the DNA G+C content was 63.8 mol%; and the Sphingobium-specific 16S rRNA signatures were conserved. A point of difference from other species of the genus Sphingobium was that strain WP01T reduced nitrate to nitrite. The polar lipid pattern consisted of the predominant compounds diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol and sphingoglycolipids. 16S rRNA gene sequence analysis showed that, amongst the recognized species of the genus Sphingobium, strain WP01T was most similar to Sphingobium yanoikuyae GIFU 9882T and Sphingobium amiense YTT (>97 % 16S rRNA gene sequence similarities). The low DNA–DNA relatedness values between strain WP01T and S. yanoikuyae GIFU 9882T (46.6 %) and S. amiense DSM 16289T (25.6 %) indicated no relatedness at the species level. On the basis of these characteristics, it is concluded that strain WP01T should be considered as representing a novel species within the genus Sphingobium, for which the name Sphingobium scionense sp. nov. is proposed. The type strain is WP01T (=DSM 19371T=ICMP 13533T).


2012 ◽  
Vol 62 (Pt_11) ◽  
pp. 2743-2749 ◽  
Author(s):  
Tony Gutierrez ◽  
David H. Green ◽  
William B. Whitman ◽  
Peter D. Nichols ◽  
Kirk T. Semple ◽  
...  

A strictly aerobic, halotolerant, Gram-stain-negative, rod-shaped bacterium, designated strain DG1253T, was isolated from a laboratory culture of the marine dinoflagellate Lingulodinium polyedrum (CCAP 1121/2). The strain was able to degrade two- and three-ring polycyclic aromatic hydrocarbons. It exhibited a narrow nutritional spectrum, preferring to utilize aliphatic and aromatic hydrocarbon compounds and small organic acids. Cells produced surface blebs and contained a single polar flagellum. The predominant isoprenoid quinone of strain DG1253T was Q-8. The fatty acid profile was dominated by C18 : 1ω7c. The mean DNA G+C content of strain DG1253T was 63.6±0.25 mol%. 16S rRNA gene sequence analysis placed this organism within the order Xanthomonadales of the class Gammaproteobacteria . Its closest relatives included representatives of the Hydrocarboniphaga – Nevskia – Sinobacter clade (≤89.9 % 16S rRNA gene sequence similarity) in the family Sinobacteraceae . On the basis of distinct phenotypic and genotypic characteristics, strain DG1253T is considered to represent a novel species of a new genus in the class Gammaproteobacteria , for which the name Algiphilus aromaticivorans gen. nov., sp. nov. is proposed. The type strain of the type species, Algiphilus aromaticivorans, is DG1253T ( = ATCC BAA-2243T = DSM 24793T). In addition, a new family, Algiphilaceae fam. nov., is proposed to accommodate the genus Algiphilus.


2011 ◽  
Vol 61 (8) ◽  
pp. 1887-1893 ◽  
Author(s):  
Ming-Hui Chen ◽  
Shih-Yi Sheu ◽  
A. B. Arun ◽  
Chiu-Chung Young ◽  
Chaolun Allen Chen ◽  
...  

A Gram-negative, heterotrophic, marine bacterium, designated strain SW-11T, was isolated from the reef-building coral Isopora palifera in Kenting, Taiwan. Cells were rods and were motile by a single polar flagellum. The strain grew at 10–45 °C (optimum, 30–35 °C), at pH 7.0–8.0 (optimum, pH 7.5) and with 2.0–4.0 % NaCl (optimum, 2.5–3.0 %). The polar lipids comprised phosphatidylethanolamine, phosphatidylglycerol, phosphatidylserine, diphosphatidylglycerol and four unknown phospholipids. Isoprenoid quinones consisted of ubiquinone 9 (78.8 %) and ubiquinone 8 (21.1 %). Major cellular fatty acids were summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c; 22.3 %), C17 : 1ω8c (13.4 %), summed feature 8 (C18 : 1ω6c and/or C18 : 1ω7c; 13.1 %), C16 : 0 (10.3 %) and anteiso-C17 : 1ω9c (10.0 %). The DNA G+C content was 51.6 mol%. 16S rRNA gene sequence analysis indicated that strain SW-11T belongs to the class Gammaproteobacteria and is a member of the order Alteromonadales. Strain SW-11T shared 93.2 % 16S rRNA gene sequence similarity with Teredinibacter turnerae T7902T and 92.1 % with Saccharophagus degradans 2-40T, and can be further distinguished from these two related strains by distinct patterns of fatty acid content and differences in the polar lipid profile, the ability to utilize different compounds as carbon sources, the ability to degrade various compounds and differences in enzyme activities. The phylogenetic data and those from physiological, morphological and chemotaxonomic characterizations indicate that strain SW-11T represents a novel species and genus, for which the name Pseudoteredinibacter isoporae gen. nov., sp. nov. is proposed. The type strain of Pseudoteredinibacter isoporae is SW-11T ( = BCRC 17935T  = LMG 25246T).


2007 ◽  
Vol 57 (10) ◽  
pp. 2207-2211 ◽  
Author(s):  
Kae Kyoung Kwon ◽  
Jung-Hee Woo ◽  
Sung-Hyun Yang ◽  
Ji-Hyun Kang ◽  
Sung Gyun Kang ◽  
...  

A novel marine bacterium, strain JCS350T, was isolated from marine sediment samples collected from a cold-seep area. The 16S rRNA gene sequence of the isolate showed high similarity to that of Erythrobacter luteolus SW-109T (95.9 % sequence similarity). Lower 16S rRNA gene sequence similarities were shown to other members of the genus Erythrobacter (94.6–95.4 %) and members of the genus Porphyrobacter (94.5–95.2 %). Phylogenetic analysis with all members of the family Erythrobacteraceae and several members of the family Sphingomonadaceae revealed that the isolate formed a phyletic line with [Erythrobacter] luteolus that was distinct from other members of the family Erythrobacteraceae. The dominant fatty acids of strain JCS350T were 18 : 1ω7c, 16 : 1ω7c and cyclopropane 17 : 0. The major respiratory quinone was ubiquinone 10. The DNA G+C content was 54.5 mol%. The isolate did not contain bacteriochlorophyll a. Optimal growth required the presence of 2 % (w/v) NaCl with either 0.18 % CaCl2 or 0.59 % MgCl2, at pH 6.5 and at 35 °C. On the basis of the evidence of this polyphasic taxonomic study, strain JCS350T should be classified in a novel genus and species in the family Erythrobacteraceae, for which the name Altererythrobacter epoxidivorans gen. nov., sp. nov. is proposed. The misclassified species [Erythrobacter] luteolus is transferred to the new genus as Altererythrobacter luteolus comb. nov. The type strain of Altererythrobacter epoxidivorans is JCS350T (=KCCM 42314T =JCM 13815T) and the type strain of Altererythrobacter luteolus is SW-109T (=KCTC 12311T =JCM 12599T).


2006 ◽  
Vol 56 (6) ◽  
pp. 1349-1353 ◽  
Author(s):  
Kae Kyoung Kwon ◽  
Yoo Kyung Lee ◽  
Hong Kum Lee

A marine bacterium, strain KOPRI 13342T, was isolated from a mature marine biofilm, including various marine algae, covering a rock-bed of the East Sea, Korea (also known as the Sea of Japan). Colonies of the isolate were orange-coloured on marine agar 2216. The isolate showed relatively high 16S rRNA gene sequence similarities to members of the genera Maribacter (91.2–92.4 % similarity), Zobellia (90.7–91.5 %) and Muricauda (90.7–91.4 %). Phylogenetic analysis based on the nearly complete 16S rRNA gene sequence revealed that the isolate formed a phyletic lineage with members of the genus Muricauda. Cells were aerobic, motile, Gram-negative rods and they produced non-diffusible carotenoid pigments. Optimal growth was observed at pH 7.5–8.0 and 26–32 °C and required the presence of 3 % (w/v) sea salt. The strain required Ca2+ and K+ ions in addition to NaCl for growth. The dominant fatty acids were i-15 : 0, i-15 : 1ω10, 15 : 0 and 16 : 1ω9. The major respiratory quinone was MK-6. The DNA G+C content was 35.8 mol%. On the basis of this polyphasic taxonomic evidence, strain KOPRI 13342T should be classified as a representative of a novel species in a new genus in the family Flavobacteriaceae; the name Costertonia aggregata gen. nov., sp. nov. is proposed. The type strain of Costertonia aggregata is KOPRI 13342T (=KCCM 42265T=JCM 13411T).


Author(s):  
Shadi Khodamoradi ◽  
Richard L. Hahnke ◽  
Yvonne Mast ◽  
Peter Schumann ◽  
Peter Kämpfer ◽  
...  

AbstractStrain M2T was isolated from the beach of Cuxhaven, Wadden Sea, Germany, in course of a program to attain new producers of bioactive natural products. Strain M2T produces litoralimycin and sulfomycin-type thiopeptides. Bioinformatic analysis revealed a potential biosynthetic gene cluster encoding for the M2T thiopeptides. The strain is Gram-stain-positive, rod shaped, non-motile, spore forming, showing a yellow colony color and forms extensively branched substrate mycelium and aerial hyphae. Inferred from the 16S rRNA gene phylogeny strain M2T affiliates with the genus Streptomonospora. It shows 96.6% 16S rRNA gene sequence similarity to the type species Streptomonospora salina DSM 44593 T and forms a distinct branch with Streptomonospora sediminis DSM 45723 T with 97.0% 16S rRNA gene sequence similarity. Genome-based phylogenetic analysis revealed that M2T is closely related to Streptomonospora alba YIM 90003 T with a digital DNA-DNA hybridisation (dDDH) value of 26.6%. The predominant menaquinones of M2T are MK-10(H6), MK-10(H8), and MK-11(H6) (> 10%). Major cellular fatty acids are iso-C16:0, anteiso C17:0 and C18:0 10-methyl. The polar lipid profile consisted of diphosphatidylglycerol phosphatidyl glycerol, phosphatidylinositol, phosphatidylcholine, phosphatidylethanolamine, three glycolipids, two unknown phospholipids, and two unknown lipids. The genome size of type strain M2T is 5,878,427 bp with 72.1 mol % G + C content. Based on the results obtained from phylogenetic and chemotaxonomic studies, strain M2T (= DSM 106425 T = NCCB 100650 T) is considered to represent a novel species within the genus Streptomonospora for which the name Streptomonospora litoralis sp. nov. is proposed.


Sign in / Sign up

Export Citation Format

Share Document