scholarly journals Photobacterium ganghwense sp. nov., a halophilic bacterium isolated from sea water

2006 ◽  
Vol 56 (4) ◽  
pp. 745-749 ◽  
Author(s):  
Yoon-Dong Park ◽  
Keun Sik Baik ◽  
Chi Nam Seong ◽  
Kyung Sook Bae ◽  
Sanggoo Kim ◽  
...  

A marine bacterial strain, designated FR1311T, was isolated from a sea-water sample from Ganghwa Island, South Korea. Cells were Gram-negative, facultatively anaerobic, catalase- and oxidase-positive, motile, oval or rod-shaped and halophilic (optimum sea-salt concentration for growth of 5–6 %). Phylogenetic analysis of its 16S rRNA gene sequence revealed that it represented a distinct line of descent within the genus Photobacterium. The major fatty acids were straight-chain saturated (C16 : 0) and monounsaturated fatty acids (C16 : 1 ω7c and C18 : 1 ω7c). The predominant respiratory lipoquinone was Q-8. The DNA G+C content was 44 mol%. The phenotypic features of strain FR1199T were similar to those of Photobacterium damselae subsp. damselae and Photobacterium damselae subsp. piscicida, but several physiological and chemotaxonomic properties readily distinguish the new isolate from them. On the basis of the polyphasic results revealed in this study, FR1311T is considered to be the type strain of a novel species, for which the name Photobacterium ganghwense sp. nov. is proposed. The type strain is FR1311T (=IMSNU 60287T=KCTC 12328T=JCM 12487T).

2005 ◽  
Vol 55 (6) ◽  
pp. 2519-2523 ◽  
Author(s):  
Yoon-Dong Park ◽  
Keun Sik Baik ◽  
Hana Yi ◽  
Kyung Sook Bae ◽  
Jongsik Chun

A Gram-negative, motile, strictly aerobic, violet-pigment-producing bacterium, designated strain FR1199T, was isolated from tidal flat sediment of Byunsan, South Korea. Phylogenetic analysis of the 16S rRNA gene sequence revealed that strain FR1199T represents a distinct line of descent within the genus Pseudoalteromonas. The phenotypic features of strain FR1199T were similar to those of Pseudoalteromonas phenolica and Pseudoalteromonas luteoviolacea, but several physiological and chemotaxonomical properties readily distinguished strain FR1199T from these species. Major fatty acids were straight-chain saturated (C16 : 0) and monounsaturated C18 : 1 ω7c fatty acids. The DNA G+C content was 39 mol%. On the basis of polyphasic evidence, it is concluded that the isolate represents a novel species within the genus Pseudoalteromonas, for which the name Pseudoalteromonas byunsanensis sp. nov. is proposed. The type strain is FR1199T (=JCM 12483T=KCTC 12274T).


Author(s):  
Ji-Hui Liu ◽  
Yong-Xia Wang ◽  
Xiao-Xia Zhang ◽  
Zhi-Gang Wang ◽  
Yi-Guang Chen ◽  
...  

A Gram-negative, rod-shaped, facultatively anaerobic, halotolerant bacterial strain, designated YIM YD3T, was isolated from a salt mine in Yunnan, south-west China. The taxonomy of strain YIM YD3T was investigated by a polyphasic approach. Strain YIM YD3T was motile, formed pink colonies and was positive for catalase and oxidase activities. Q-10 was the predominant respiratory ubiquinone. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylmethylethanolamine, phosphatidylcholine and two unknown phospholipids. The major fatty acids (>10 % of total fatty acids) were C18 : 1 ω7c, C18 : 1 ω9c, C16 : 0 and C19 : 0 cyclo ω8c. The DNA G+C content was 71.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequence comparisons showed that the isolate formed a distinct line within a clade containing the genera Balneimonas, Bosea, Chelatococcus and Microvirga in the order Rhizobiales, with highest levels of 16S RNA gene sequence similarity to the type strain of Balneimonas flocculans (93.5 %). On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain YIM YD3T represents a novel species in a new genus, for which the name Salinarimonas rosea gen. nov., sp. nov. is proposed, with strain YIM YD3T (=KCTC 22346T=CCTCC AA208038T) as the type strain.


2006 ◽  
Vol 56 (11) ◽  
pp. 2647-2652 ◽  
Author(s):  
Karima Kharroub ◽  
Margarita Aguilera ◽  
Teresa Quesada ◽  
José Antonio Morillo ◽  
Alberto Ramos-Cormenzana ◽  
...  

A novel, extremely halophilic bacterium was isolated from brine samples collected from Ezzemoul sabkha in north-east Algeria. Cells of this isolate, designated B2T, were Gram-negative, rod-shaped and motile. Growth occurred between 10 and 25 % (w/v) NaCl and the isolate grew optimally at 15–20 % (w/v) NaCl. The pH range for growth was 6.0–9.0 with an optimum at pH 7.0–7.5. The predominant fatty acids were C16 : 0 and C18 : 1 ω9c. Other fatty acids present were C16 : 1 ω9c, C18 : 0 10-methyl, C12 : 0 3-OH, C10 : 0 and C12 : 0. The G+C content of the genomic DNA was 56.0 mol%. 16S rRNA gene sequence analysis indicated that strain B2T was closely related to Salicola marasensis in the Gammaproteobacteria. The level of 16S rRNA gene sequence similarity between strain B2T and the type strain of Salicola marasensis was 99 %. DNA–DNA hybridization experiments between strain B2T and Salicola marasensis indicated a level of relatedness of 52 %. The phenotypic characteristics of strain B2T allowed its differentiation from recognized species of the genus Salicola. Strain B2T was able to hydrolyse starch but not aesculin. It was unable to use carbohydrates and could not use citrate, pyruvate or succinate as sole carbon and energy sources. On the basis of the polyphasic data presented, strain B2T is considered to represent a novel species of the genus Salicola, for which the name Salicola salis sp. nov. is proposed. The type strain is B2T (=CECT 7106T=LMG 23122T).


2010 ◽  
Vol 60 (3) ◽  
pp. 653-658 ◽  
Author(s):  
Mi-Ja Jung ◽  
Min-Soo Kim ◽  
Seong Woon Roh ◽  
Kee-Sun Shin ◽  
Jin-Woo Bae

A novel, moderately halophilic bacterium belonging to the genus Salinicoccus was isolated from crabs preserved in soy sauce: a traditional Korean fermented seafood. Colonies of strain CrmT were ivory and the cells were non-motile, Gram-positive cocci. The organism was non-sporulating, catalase-positive and oxidase-negative. The major fatty acids of strain CrmT were iso-C15 : 0 (22.0 %), anteiso-C15 : 0 (40.6 %) and anteiso-C17 : 0 (12.1 %). The cell wall peptidoglycan contained lysine and glycine, and the major isoprenoid quinone was MK-6. The polar lipids were phosphatidylglycerol, diphosphatidylglycerol and an unidentified glycolipid. The genomic DNA G+C content was 47.8 mol%. Strain CrmT was closely related to the type strain of Salinicoccus halodurans, with which it shared 96.9 % 16S rRNA gene sequence similarity. The DNA–DNA hybridization value between strains CrmT and S. halodurans DSM 19336T was 7.6 %. Based on phenotypic, genetic and phylogenetic data, strain CrmT should be classified as a novel species within the genus Salinicoccus, for which the name Salinicoccus carnicancri sp. nov. is proposed. The type strain is CrmT (=KCTC 13301T =JCM 15796T).


2011 ◽  
Vol 61 (4) ◽  
pp. 877-881 ◽  
Author(s):  
Maki Kitahara ◽  
Sayaka Tsuchida ◽  
Koh Kawasumi ◽  
Hiromi Amao ◽  
Mitsuo Sakamoto ◽  
...  

Gram-negative anaerobic rods were isolated from chinchilla (Chinchilla lanigera) faeces and three strains, ST170T, ST180 and ST28T, were investigated taxonomically. On the basis of phylogenetic analyses and specific phenotypic characteristics, the three strains belonged to the genus Bacteroides. Phylogenetic analysis of their 16S rRNA gene sequences revealed that strains ST170T and ST180 formed a single cluster and a distinct line of descent. Strain ST170T exhibited 99.7 % 16S rRNA gene sequence similarity with strain ST180 and 95.1, 94.6 and 94.4 % 16S rRNA gene sequence similarity with Bacteroides massiliensis JCM 13223T, Bacteroides dorei JCM 13471T and Bacteroides vulgatus JCM 5826T, respectively. Strain ST28T also formed a distinct line of descent and exhibited the highest 16S rRNA gene sequence similarity with Bacteroides uniformis JCM 5828T (98.1 %). Low DNA–DNA relatedness (1 %) between strain ST28T and B. uniformis JCM 5828T clearly indicated that they belonged to different species. Analysis of hsp60 sequences also supported these relationships. The DNA G+C contents of strains ST170T and ST28T were 45.2 and 41.0 mol%, respectively. On the basis of phenotypic characteristics and phylogenetic data, two novel species, Bacteroides chinchillae sp. nov. (type strain ST170T  = JCM 16497T  = CCUG 59335T) and Bacteroides rodentium sp. nov. (type strain ST28T  = JCM 16496T  = CCUG 59334T), are proposed.


2007 ◽  
Vol 57 (10) ◽  
pp. 2376-2380 ◽  
Author(s):  
Mubina M. Merchant ◽  
Allana K. Welsh ◽  
Robert J. C. McLean

A Gram-negative, rod-shaped, motile, non-spore-forming bacterium, designated strain A62-14BT, was isolated from a constant-temperature, spring-fed, freshwater lake. On the basis of the complete 16S rRNA gene sequence, strain A62-14BT was shown to belong to the class Gammaproteobacteria, being most closely related to Rheinheimera sp. HTB082 (96.2 % sequence similarity), Rheinheimera baltica (95.01 %), Rheinheimera pacifica (96.35 %), Rheinheimera perlucida and Alishewanella fetalis (95.9 %). The major fatty acids (C16 : 1 ω7c, 38.56 %; C16 : 0, 19.04 %; C12 : 0 3-OH, 12.83 %; C18 : 1 ω7c, 7.70 %) and the motility of strain A62-14BT support its affiliation to the genus Rheinheimera. The salt intolerance of strain A62-14BT, together with the results of other physiological and biochemical tests, allowed the differentiation of this strain from the three species of the genus Rheinheimera with validly published names. Therefore strain A62-14BT represents a novel species of the genus Rheinheimera, for which the name Rheinheimera texasensis sp. nov. is proposed. The type strain is A62-14BT (=ATCC BAA-1235T=DSM 17496T). The description of the genus Rheinheimera is emended to reflect the halointolerance and freshwater origin of strain A62-14BT.


2020 ◽  
Author(s):  
Silvina Perez ◽  
Margarita Gomila ◽  
Silvia Elena Murialdo ◽  
Irene Mabel Ameztoy ◽  
Narjol Gonzalez-Escalona ◽  
...  

ABSTRACTA facultative aerobic, Gram-negative, motile, non-endospore forming and extremely halophilic bacterium, strain 11aii⊺, isolated from salted-ripened anchovy, was examined using a polyphasic approach to characterize and clarify its phylogenetic and taxonomic position. Sequences of the 16S rRNA gene revealed close relationships to species of the genera Lentibacillus and Virgibacillus (94.2% similarity). The organism grew optimally in the presence of 20-35 % NaCl. The major fatty acids of strain 11aii⊺ were C16:0 (42.1%) and anteiso-C15:0 (31.2%) and also presented iso-C16:0 (11.0%), anteiso-C17:0 (10.4%) and C18:0 (5.2%). Based on data presented here, strain 11aii⊺ is considered to represent a novel genus and species, for which the name Haloargentinum marplatensis gen. nov. sp. nov. is proposed with the strain 11aii⊺ as type strain.


2010 ◽  
Vol 60 (3) ◽  
pp. 526-530 ◽  
Author(s):  
Soo-Jin Kim ◽  
Hang-Yeon Weon ◽  
Yi-Seul Kim ◽  
Rangasamy Anandham ◽  
Young-Ah Jeon ◽  
...  

Two aerobic, Gram-positive, rod-shaped bacterial strains, 5YN10-14T and GR21-5T, were isolated from the Yongneup wetland and ginseng soil in Korea, respectively. The two strains formed ellipsoidal or oval spores positioned centrally or paracentrally in swollen sporangia. On the basis of 16S rRNA gene sequence analysis, these strains were related to members of the genus Cohnella. 16S rRNA gene sequence similarity between strains 5YN10-14T and GR21-5T was 95.9 %. Strains 5YN10-14T and GR21-5T showed, respectively, 94.3 and 95.2 % 16S rRNA gene sequence similarity to Cohnella thermotolerans CCUG 47242T, 94.6 and 94.4 % to Cohnella hongkongensis HKU3T, 94.7 and 94.7 % to Cohnella laeviribosi RI-39T, and 95.4 and 94.8 % to Cohnella phaseoli GSPC1T. The major fatty acids of strain 5YN10-14T were anteiso-C15 : 0 (51.1 %), iso-C16 : 0 (18.5 %) and C16 : 0 (13.2 %), and the major fatty acids of strain GR21-5T were anteiso-C15 : 0 (48.9 %), iso-C16 : 0 (15.0 %) and iso-C15 : 0 (12.2 %). The two strains contained menaquinone with seven isoprene units (MK-7) as the predominant quinone, and diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine as major polar lipids; however, strain 5YN10-14T also contained lysylphosphatidylglycerol as a major polar lipid, whereas strain GR21-5T had an unknown aminophospholipid as another major polar lipid. The DNA G+C contents of strains 5YN10-14T and GR21-5T were 58.8 and 61.3 mol%, respectively. Based on the results of the phylogenetic and phenotypic data presented, it was concluded that the two strains represent two novel species of the genus Cohnella, for which the names Cohnella yongneupensis sp. nov. (type strain 5YN10-14T=KACC 11768T=DSM 18998T) and Cohnella ginsengisoli sp. nov. (type strain GR21-5T=KACC 11771T=DSM 18997T) are proposed.


2006 ◽  
Vol 56 (9) ◽  
pp. 2079-2082 ◽  
Author(s):  
Byung-Yong Kim ◽  
Hang-Yeon Weon ◽  
Kang-Hyo Lee ◽  
Soon-Ja Seok ◽  
Soon-Wo Kwon ◽  
...  

A novel strain, R2A16-10T, was isolated from greenhouse soil in Yeoju, Korea. The taxonomy of strain R2A16-10T was studied by using polyphasic methods. On the basis of 16S rRNA gene sequence analyses, strain R2A16-10T was found to be phylogenetically related to type strains of Dyella species (96.7–96.9 %), Frateuria aurantia DSM 6220T (96.5 %), Fulvimonas soli LMG 19981T (96.3 %) and Rhodanobacter species (94.9–95.7 %). Strain R2A16-10T, which produced yellow-coloured colonies, was Gram-negative, rod-shaped (0.3–0.4×1.5–3.5 μm) and motile. The predominant fatty acids were 17 : 1 iso ω9c (25.5 %), 15 : 0 iso (18.7 %) and 17 : 0 iso (14.6 %), and the major hydroxy fatty acids were 11 : 0 iso 3-OH (5.0 %), 13 : 0 iso 3-OH (3.4 %) and 17 : 0 iso 3-OH (1.0 %). The major isoprenoid quinone was Q-8. The G+C content of the DNA of the type strain was 63.0 mol%. On the basis of the data from this study, strain R2A16-10T represents a novel species of the genus Dyella, for which the name Dyella yeojuensis sp. nov. is proposed. The type strain is R2A16-10T (=KACC 11405T=DSM 17673T).


2004 ◽  
Vol 54 (6) ◽  
pp. 2347-2352 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
Soo-Hwan Yeo ◽  
In-Gi Kim ◽  
Tae-Kwang Oh

Two Gram-negative, motile, non-spore-forming, rod-shaped organisms, strains SW-117T and SW-120T, were isolated from sea water of the Yellow Sea in Korea and subjected to a polyphasic taxonomic study. Strains SW-117T and SW-120T simultaneously contained both menaquinones (MK) and ubiquinones (Q) as isoprenoid quinones; the predominant menaquinone was MK-7 and the predominant ubiquinones were Q-7 and Q-8. The major fatty acid detected in the two strains was iso-C15 : 0. The DNA G+C content of strains SW-117T and SW-120T was 51 and 54 mol%, respectively. Phylogenetic analyses based on 16S rRNA gene sequences showed that strains SW-117T and SW-120T fall within the radiation of the cluster comprising Shewanella species. Strains SW-117T and SW-120T showed a 16S rRNA gene sequence similarity of 97·4 % and a DNA–DNA relatedness level of 10·1 %. Strains SW-117T and SW-120T exhibited 16S rRNA gene sequence similarity levels of 93·8–98·5 % and 92·4–97·0 %, respectively, to Shewanella species. Strain SW-117T exhibited DNA–DNA relatedness levels of 8·3–20·3 % to the type strains of six phylogenetically related Shewanella species. On the basis of phenotypic, phylogenetic and genetic data, strains SW-117T and SW-120T were classified in the genus Shewanella as two distinct novel species, for which the names Shewanella marisflavi sp. nov. (type strain, SW-117T=KCCM 41822T=JCM 12192T) and Shewanella aquimarina sp. nov. (type strain, SW-120T=KCCM 41821T=JCM 12193T) are proposed, respectively.


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