Photobacterium aquae sp. nov., isolated from a recirculating mariculture system

2014 ◽  
Vol 64 (Pt_2) ◽  
pp. 475-480 ◽  
Author(s):  
Ying Liu ◽  
Liang-Zi Liu ◽  
Lei Song ◽  
Yu-Guang Zhou ◽  
Fang-Jun Qi ◽  
...  

A Gram-staining-negative, heterotrophic, facultatively anaerobic bacterium, designated AE6T, was isolated from a grouper (Epinephelus malabaricas) culture tank in a recirculating mariculture system located in Tianjin, China. Strain AE6T was able to grow at 15–40 °C (optimum, 30–35 °C), at pH 5.5–10.0 (optimum, pH 7.0–7.5) and in the presence of 0.5–7 % (w/v) NaCl (optimum, 2–3 %). It contained Q-8 as the predominant respiratory quinone, phosphatidylethanolamine (PE) and phosphatidylglycerol (PG) as the major polar lipids and C16 : 1ω7c/C16 : 1ω6c (40.4 %), C18 : 1ω7c (15.5 %) and C16 : 0 (13.5 %) as the predominant cellular fatty acids. The genomic DNA G+C content was 47.1 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain AE6T belonged to the genus Photobacterium (94.2–96.8 % of 16S rRNA gene sequence similarity) and formed a distinct phylogenetic lineage within the genus and exhibited the highest sequence similarity to Photobacterium aphoticum CECT 7614T (96.8 %). Multilocus sequence analysis (MLSA) using four loci (gyrB, rpoA, pyrH and recA) also revealed that strain AE6T was phylogenetically related to the genus Photobacterium . Based on the phylogenetic, chemotaxonomic and phenotypic evidence, strain AE6T is considered to represent a novel species of the genus Photobacterium , for which the name Photobacterium aquae sp. nov. is proposed. The type strain is AE6T ( = CGMCC 1.12159T = JCM 18480T).

2012 ◽  
Vol 62 (Pt_7) ◽  
pp. 1630-1635 ◽  
Author(s):  
Fan Jiang ◽  
Jun Dai ◽  
Yang Wang ◽  
Xiuqing Xue ◽  
Mengbo Xu ◽  
...  

A novel pale-pink-coloured strain, designated R9-65T, was isolated from a tundra soil near Ny-Ålesund, Svalbard Archipelago, Norway (78° N). The cells were facultatively anaerobic, Gram-staining-negative, non-motile and rod-shaped. Growth occurred at 4–32 °C (optimum, 25–28 °C), at pH 5.0–9.0 (optimum, pH 6.0–7.0) and with 0–1.0 % (w/v) NaCl (optimum, no NaCl). Flexirubin-type pigments were absent. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain R9-65T belonged to the genus Mucilaginibacter in the family Sphingobacteriaceae . The 16S rRNA gene sequence similarity between strain R9-65T and type strains of related species ranged from 93.4 to 96.6 %. Strain R9-65T contained summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c, 34.3 %) and iso-C15 : 0 (20.3 %) as major cellular fatty acids, MK-7 as the major respiratory quinone, and phosphatidylethanolamine as the main polar lipid. The DNA G+C content of strain R9-65T was 47.2 mol%. On the basis of phylogenetic, physiological and chemotaxonomic data, strain R9-65T is considered to represent a novel species of the genus Mucilaginibacter , for which the name Mucilaginibacter soli sp. nov. is proposed. The type strain is R9-65T ( = CCTCC AB 2010331T = NRRL B-59458T).


2014 ◽  
Vol 64 (Pt_12) ◽  
pp. 3926-3930 ◽  
Author(s):  
Ying Liu ◽  
Liang-Zi Liu ◽  
Zhi-Ping Zhong ◽  
Yu-Guang Zhou ◽  
Ying Liu ◽  
...  

A Gram-staining-negative, heterotrophic, facultatively anaerobic bacterium, designated S1T, was isolated from the Cynoglossus semilaevis culture pond in a recirculating mariculture system in Tianjin, China. The taxonomy of strain S1T was studied by using a polyphasic approach. Cells of strain S1T were non-spore-forming, curved rods, 0.4–0.6 µm wide and 1.2–2.0 µm long, and motile by means of a single polar flagellum. The strain was positive for oxidase and catalase activities. Strain S1T was able to grow at 4–30 °C (optimum, 25 °C), at pH 5.5–10.0 (optimum, pH 6.5–7.5) and in the presence of 1–5 % (w/v) NaCl (optimum, 2 %). Strain S1T contained Q-8 as the sole respiratory quinone and C16 : 1ω7c/C16 : 1ω6c and C16 : 0 as the predominant cellular fatty acids. The genomic DNA G+C content was 40.1 mol% (T m). Phylogenetic analysis based on 16S rRNA gene sequences placed strain S1T in the genus Colwellia , and it formed a distinct lineage in the phylogenetic tree together with Colwellia meonggei MA1-3T, Colwellia aestuarii SMK-10T, Colwellia polaris 537T and Colwellia chukchiensis BCw111T, with 97.7, 96.1, 95.9 and 95.0 % 16S rRNA gene sequence similarity to these strains, respectively. DNA–DNA relatedness of strain S1T to Colwellia meonggei MA1-3T was 23.5±3.6 %. On the basis of the phylogenetic and phenotypic evidence, strain S1T is considered to represent a novel species of the genus Colwellia , for which the name Colwellia aquaemaris sp. nov. is proposed. The type strain is S1T ( = CGMCC 1.12165T = JCM 18479T).


Author(s):  
Xiao-Xian Huang ◽  
Jia Shang ◽  
Lian Xu ◽  
Rui Yang ◽  
Ji-Quan Sun

A Gram-stain-negative, non-motile, rod-shaped bacterial strain, named SJ-16T, was isolated from desert soil collected in Inner Mongolia, northern PR China. Strain SJ-16T grew at pH 6.0–11.0 (optimum, pH 8.0–9.0), 4–40 °C (optimum, 30–35 °C) and in the presence of 0–8 % (w/v) NaCl (optimum, 0–2 %). The strain was negative for catalase and positive for oxidase. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain SJ-16T clustered with Luteimonas chenhongjianii 100111T and Luteimonas terrae THG-MD21T, and had 98.8, 98.6, 98.3 and <97.9 % of 16S rRNA gene sequence similarity to strains L. chenhongjianii 100111T, L. terrae THG-MD21T, L. aestuarii B9T and all other type strains of the genus Luteimonas , respectively. The major cellular fatty acids were iso-C15 : 0, iso-C16 : 0, summed feature 3 (C16 : 1  ω7c and/or C16 : 1  ω6c) and summed feature 9 (C16 : 0 10-methyl and/or iso-C17 : 1  ω9c). Diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine were the major polar lipids, and ubiquinone-8 was the only respiratory quinone. The genomic DNA G+C content was 69.3 mol%. The digital DNA–DNA hybridization and average nucleotide identity values of strain SJ-16T to L. chenhongjianii 100111T, L. terrae THG-MD21T, L. rhizosphaerae 4-12T and L. aestuarii B9T were 36.9, 37.5, 24.0 and 21.1 %, and 80.9, 80.6, 80.7 and 76.3 %, respectively. Based on phenotypic, physiological and phylogenetic results, strain SJ-16T represents a novel species of the genus Luteimonas , for which the name Luteimonas deserti is proposed. The type strain is SJ-16T (=CGMCC 1.17694T=KCTC 82207T).


2013 ◽  
Vol 63 (Pt_2) ◽  
pp. 703-708 ◽  
Author(s):  
Dong-Heon Lee ◽  
Sun Ja Cho ◽  
Suk Min Kim ◽  
Sun Bok Lee

A novel bacterium, designated strain F051-1T, isolated from a seawater sample collected from the coast at Damupo beach in Pohang, Korea, was investigated in a polyphasic taxonomic study. Cells were yellow-pigmented, strictly aerobic, Gram-staining-negative and rod-shaped. The temperature, pH and NaCl ranges for growth were 4–30 °C, pH 6.0–9.0 and 1.0–6.0 % (w/v), respectively. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain F051-1T belongs to the genus Psychroserpens in the family Flavobacteriaceae . Its closest relatives were Psychroserpens burtonensis ACAM 188T (96.8 % 16S rRNA gene sequence similarity) and Psychroserpens mesophilus KOPRI 13649T (95.7 %). The major cellular fatty acids were iso-C15 : 0, iso-C15 : 1 G and anteiso-C15 : 0. The polar lipid profile consisted of a mixture of phosphatidylethanolamine, two unidentified aminolipids, one unidentified phospholipid and eight unidentified lipids. The major respiratory quinone was menaquinone-6 and the genomic DNA G+C content of the strain was 33.5 mol%. On the basis of phenotypic, phylogenetic and genotypic data, strain F051-1T represents a novel species within the genus Psychroserpens , for which the name Psychroserpens damuponensis sp. nov. is proposed. The type strain is F051-1T ( = KCTC 23539T  = JCM 17632T).


2013 ◽  
Vol 63 (Pt_3) ◽  
pp. 1045-1050 ◽  
Author(s):  
Ying Xu ◽  
Xin-Peng Tian ◽  
Yu-Juan Liu ◽  
Jie Li ◽  
Chang-Jin Kim ◽  
...  

A marine bacterium, designated SCSIO 03483T, was isolated from a marine sediment sample collected from the Nansha Islands in the South China Sea. The strain produced roundish colonies with diffusible yellow-coloured pigment on nutrient agar medium or marine agar 2216. Optimal growth occurred in the presence of 0–4 % (w/v) NaCl, at pH 7.0 and a temperature range of 28–37 °C. 16S rRNA gene sequence analysis indicated that the isolate belonged to the family Flavobacteriaceae and showed relatively high sequence similarity with Imtechella halotolerans K1T (92.7 %). Phylogenetic analysis based on nearly complete 16S rRNA gene sequences revealed that the isolate shared a lineage with members of the genera Imtechella , Joostella and Zhouia . Phospholipids were phosphatidylethanolamine, two unidentified aminolipids and three unknown polar lipids. The major respiratory quinone was MK-6 and the major fatty acids were iso-C15 : 0, iso-C17 : 0 3-OH and summed feature 3 (C16 : 1ω6c/C16 : 1ω7c). The DNA G+C content of strain SCSIO 03483T was 38.4 mol%. On the basis of phenotypic, chemotaxonomic and molecular data, strain SCSIO 03483T represents a novel species in a new genus in the family Flavobacteriaceae , for which the name Sinomicrobium oceani gen. nov., sp. nov. is proposed. The type strain of Sinobacterium oceani is SCSIO 03483T ( = KCTC 23994T = CGMCC 1.12145T).


2020 ◽  
Vol 70 (5) ◽  
pp. 3323-3327 ◽  
Author(s):  
Qian Wang ◽  
Sheng-Dong Cai ◽  
Jie Liu ◽  
De-Chao Zhang

The Gram-strain-negative, rod-shaped, facultatively anaerobic, non-motile bacterial strain, designated S1-10T, was isolated from marine sediment. Strain S1-10T grew at 4–42 °C (optimally at 30–35 °C), at pH 7.0–10 (optimally at pH 9) and in the presence of 0.5–8 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain S1-10T was related to the genus Aequorivita and had highest 16S rRNA gene sequence similarity to Aequorivita viscosa 8-1bT (97.7%). The predominant cellular fatty acids were iso-C15 : 0 and anteiso-C15 : 0. The main respiratory quinone was menaquinone 6 (MK-6). The genomic DNA G+C content of strain S1-10T was 34.6 mol%. The polar lipid profile of strain S1-10T contained phosphatidylethanolamine, two aminolipids, two glycolipids, one phosphoglycolipid and three unidentified polar lipids. In addition, the maximum values of in silico DNA–DNA hybridization (isDDH) and average nucleotide identity (ANI) between strain S1-10T and A. viscosa CGMCC 1.11023T were 15.4 and 75.7 %, respectively. Combined data from phenotypic, phylogenetic, isDDH and ANI analyses demonstrated that strain S1-10T is the representative of a novel species of the genus Aequorivita , for which we propose the name Aequorivita sinensis sp. nov. (type strain S1-10T=CGMCC 1.12579T=JCM 19789T). We also propose that Vitellibacter todarodis and Vitellibacter aquimaris should be transferred into genus Aequorivita and be named Aequorivita todarodis comb. nov. and Aequorivita aquimaris comb. nov., respectively. The type strain of Aequorivita todarodis comb. nov. is MYP2-2T (= KCTC 62141T= NBRC 113025T) and the type strain of Aequorivita aquimaris comb. nov. is D-24T (=KCTC 42708T=DSM 101732T).


2015 ◽  
Vol 65 (Pt_4) ◽  
pp. 1127-1132 ◽  
Author(s):  
Jing Liang ◽  
Ji Liu ◽  
Xiao-Hua Zhang

A Gram-stain-negative, strictly aerobic and rod-shaped motile bacterium with peritrichous flagella, designated strain LZB041T, was isolated from offshore surface seawater of the East China Sea. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain LZB041T formed a lineage within the family ‘ Aurantimonadaceae ’ that was distinct from the most closely related genera Aurantimonas (96.0–96.4 % 16S rRNA gene sequence similarity) and Aureimonas (94.5–96.0 %). Optimal growth occurred in the presence of 1–7 % (w/v) NaCl, at pH 7.0–8.0 and at 28–37 °C. Ubiquinone-10 was the predominant respiratory quinone. The major fatty acids (>10 % of total fatty acids) were C18 : 1ω7c and/or C18 : 1ω6c (summed feature 8) and cyclo-C19 : 0ω8c. The major polar lipids were phosphatidylglycerol, diphosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, phosphatidylmonomethylethanolamine, one unknown aminolipid, one unknown phospholipid and one unknown polar lipid. The DNA G+C content of strain LZB041T was 71.3 mol%. On the basis of polyphasic analysis, strain LZB041T is considered to represent a novel species of a new genus in the class Alphaproteobacteria , for which the name Jiella aquimaris gen. nov., sp. nov. is proposed. The type strain of the type species is LZB041T ( = JCM 30119T = MCCC 1K00255T).


Author(s):  
Huibin Lu ◽  
Zhipeng Cai ◽  
Tongchu Deng ◽  
Youfeng Qian ◽  
Meiying Xu

Two Gram-stain-negative, catalase-positive, oxidase-negative, rod-shaped, non-flagellated, non-spore-forming and non-motile strains (YJ13CT and H41T) were isolated from a mariculture fishpond in PR China. Comparisons based on 16S rRNA gene sequences indicated that YJ13CT and H41T shared 16S rRNA gene sequences similarities between 92.6 and 99.2 % with species of the genus Algoriphagus . YJ13CT only shared 93.8 % 16S rRNA gene sequence similarity with H41T. The reconstructed phylogenetic and phylogenomic trees indicated that YJ13CT and H41T clustered closely with species of the genus Algoriphagus . The calculated pairwise orthologous average nucleotide identity with usearch (OrthoANIu) values between strains YJ13CT and H41T and other related strains were all less than 79.5 %. The OrthoANIu value between YJ13CT and H41T was only 69.9 %. MK-7 was the predominant respiratory quinone of YJ13CT and H41T and their major cellular fatty acids contained iso-C15 : 0, C16 : 1 ω7c and C17 : 1 ω9c. The polar lipids profiles of YJ13CT and H41T consisted of phosphatidylethanolamine and several kinds of unidentified lipids. Combining the above descriptions, strains YJ13CT and H41T represent two distinct novel species of the genus Algoriphagus , for which the names Algoriphagus pacificus sp. nov. (type strain YJ13CT=GDMCC 1.2178T=KCTC 82450T) and Algoriphagus oliviformis sp. nov. (type strain H41T=GDMCC 1.2179T=KCTC 82451T) are proposed.


2013 ◽  
Vol 63 (Pt_10) ◽  
pp. 3597-3601 ◽  
Author(s):  
Guo-Wei Li ◽  
Xi-Ying Zhang ◽  
Chun-Sheng Wang ◽  
Yan-Jiao Zhang ◽  
Xue-Wei Xu ◽  
...  

A Gram-stain-negative, aerobic, catalase- and oxidase-positive, non-flagellated, rod-shaped bacterium, designated strain P-50-3T, was isolated from seawater of the Pacific. The strain grew at 10–40 °C (optimum at 30 °C) and with 0–12 % (w/v, optimum 2 %) NaCl. It reduced nitrate to nitrite but did not hydrolyse gelatin, starch or Tween 80. Analysis of 16S rRNA gene sequences showed that strain P-50-3T clustered tightly with the genus Albimonas and shared the highest 16S rRNA gene sequence similarity (94.3 %) with the type strain of Albimonas donghaensis . The major respiratory quinone was Q-10 and the major cellular fatty acids were C18 : 1ω7c, C18 : 0, 11-methyl C18 : 1ω7c and C16 : 0. Polar lipids included phosphatidylglycerol (PG), phosphatidylcholine (PC), two unidentified aminolipids and an unidentified lipid. The genomic DNA G+C content of strain P-50-3T was 69.0 mol%. On the basis of the data obtained in this polyphasic study, strain P-50-3T represents a novel species within the genus Albimonas , for which the name Albimonas pacifica sp. nov. is proposed. The type strain of Albimonas pacifica is P-50-3T ( = KACC 16527T = CGMCC 1.11030T). An emended description of the genus Albimonas Lim et al. 2008 is also proposed.


2013 ◽  
Vol 63 (Pt_9) ◽  
pp. 3154-3157 ◽  
Author(s):  
Fei Zhao ◽  
Xin-qi Guo ◽  
Peng Wang ◽  
Lin-yan He ◽  
Zhi Huang ◽  
...  

A Gram-stain-negative, aerobic, motile with one polar flagellum γ-proteobacterium, designated strain SBZ3-12T, was isolated from surfaces of weathered potassic trachyte. Phylogenetic analysis of this strain based on 16S rRNA gene sequences showed that it was most closely related to Dyella japonica XD53T (97.9 % 16S rRNA gene sequence similarity), Dyella terrae JS14-6T (97.7 %), Dyella soli JS12-10T (97.5 %) and Dyella koreensis BB4T (97.0 %). The DNA G+C content of strain SBZ3-12T was 64.0 mol%. In addition, iso-C17 : 1ω9c, iso-C15 : 0 and iso-C16 : 0 were the major cellular fatty acids and ubiquinone Q-8 was the predominant respiratory quinone. The low DNA–DNA relatedness values between strain SBZ3-12T and recognized species of the genus Dyella and the many phenotypic properties supported the classification of strain SBZ3-12T as a representative of a novel species of the genus Dyella , for which the name Dyella jiangningensis sp. nov. is proposed. The type strain is SBZ3-12T ( = CCTCC AB 2012160T = KACC 16539T = DSM 26119T).


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