Kistimonas scapharcae sp. nov., isolated from a dead ark clam (Scapharca broughtonii), and emended description of the genus Kistimonas

2012 ◽  
Vol 62 (Pt_12) ◽  
pp. 2865-2869 ◽  
Author(s):  
Jina Lee ◽  
Na-Ri Shin ◽  
Hae-Won Lee ◽  
Seong Woon Roh ◽  
Min-Soo Kim ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Gene Sequence ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Content Type ◽  
Link Type ◽  
Emended Description

A Gram-negative, motile, facultatively anaerobic rod, designated A36T, was isolated from a dead ark clam found on the south coast of Korea. The isolate was catalase- and oxidase-negative. 16S rRNA gene sequence analysis indicated that strain A36T was most closely related to Kistimonas asteriae KMD 001T, with which it shared 98.2 % 16S rRNA gene sequence similarity. Strain A36T grew optimally at 30–37 °C, with 1 % (w/v) NaCl and at pH 8.0. The major respiratory quinone was ubiquinone-9 (Q-9). The major polar lipids were phosphatidylserine, phosphoethanolamine, phosphatidylglycerol and diphosphatidylglycerol. The major fatty acids were summed feature 3 (comprising C16 : 1ω7c and/or iso-C15 2-OH) and C16 : 0. The genomic DNA G+C content was 47.3 mol%. DNA–DNA relatedness between the isolate and K. asteriae JCM 15607T was <25±3 %. Strain A36T represents a novel species of the genus Kistimonas , for which the name Kistimonas scapharcae sp. nov. is proposed. The type strain is A36T ( = KACC 16204T  = JCM 17805T). An emended description of the genus Kistimonas is also provided.

Diaphorobacter aerolatus sp. nov., isolated from air, and emended description of the genus Diaphorobacter

2014 ◽  
Vol 64 (Pt_2) ◽  
pp. 513-517 ◽  
Author(s):  
Soo-Jin Kim ◽  
Ji-Young Moon ◽  
Jae-Hyung Ahn ◽  
Hang-Yeon Weon ◽  
Seung-Beom Hong ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Gene Sequence ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Content Type ◽  
Link Type ◽  
Emended Description

A Gram-stain-negative, non-motile, aerobic rod, designated 8604S-37T, was isolated from an outdoor air sample collected in Suwon region, Republic of Korea. The isolate was catalase-positive and oxidase-negative. 16S rRNA gene sequence analysis indicated that strain 8604S-37T was most closely related to Diaphorobacter nitroreducens NA10BT and Diaphorobacter oryzae RF3T, with which it shared 97.0 % 16S rRNA gene sequence similarity. Strain 8604S-37T grew at 10–37 °C (optimum 28 °C; no growth occurred at 4 or 40 °C) and pH 5–9 (optimum pH 7). The strain tolerated up to 3 % NaCl (w/v) (optimum 0 %). The only respiratory quinone was ubiquinone-8 (Q-8). The polar lipid profile comprised phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and one unknown aminolipid. The major fatty acids were C16 : 0, summed feature 3 (comprising C16 : 1ω7c and/or iso-C15 : 0 2-OH), summed feature 8 (C18 : 1ω6c and/or C18 : 1ω7c) and C17 : 0 cyclo, and the predominant hydroxy fatty acid was C10 : 0 3-OH. Strain 8604S-37T exhibited less than 50 % DNA–DNA relatedness with Diaphorobacter nitroreducens KACC 13856T and Diaphorobacter oryzae KACC 16857T. The DNA G+C content was 65 mol%. Strain 8604S-37T represents a novel species of the genus Diaphorobacter , for which the name Diaphorobacter aerolatus sp. nov. is proposed. The type strain is 8604S-37T ( = KACC 16536T = NBRC 108926T). An emended description of the genus Diaphorobacter is also proposed.

Paenisporosarcina indica sp. nov., a psychrophilic bacterium from a glacier, and reclassification of Sporosarcina antarctica Yu et al., 2008 as Paenisporosarcina antarctica comb. nov. and emended description of the genus Paenisporosarcina

2013 ◽  
Vol 63 (Pt_8) ◽  
pp. 2927-2933 ◽  
Author(s):  
G. S. N. Reddy ◽  
B. Poorna Manasa ◽  
Sanjay K. Singh ◽  
S. Shivaji
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Gene Sequence ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Content Type ◽  
Link Type ◽  
Emended Description

A Gram-stain-positive, aerobic, spore-forming, rod-shaped bacterium, PN2T, was isolated from a soil sample collected near the Pindari glacier. It contained anteiso-C15 : 0, iso-C15 : 0 and C16 : 1ω7c alcohol as the predominant fatty acids, MK-7 as the major menaquinone and A4α type (l-Lys–d-Glu) peptidoglycan. Based on these characteristics, strain PN2T was assigned to the genus Paenisporosarcina . Phylogenetic analysis based on 16S rRNA gene sequence placed strain PN2T within the genus Paenisporosarcina and showed a sequence similarity of 98.5–99.0 % with members of this genus. Paenisporosarcina macmurdoensis CMS 21wT, Paenisporosarcina quisquiliarum SK 55T and Sporosarcina antarctica N-05T were identified as the most closely related species with 16S rRNA gene sequence similarities of 98.6 %, 99.0 % and 98.4 %, respectively. The values for DNA–DNA relatedness between strain PN2T and P. macmurdoensis , P. quisquiliarum and S. antarctica were below the 70 % threshold value (32.0 %, 42.0 % and 38.0 % respectively). In addition, strain PN2T exhibited a number of phenotypic differences from P. macmurdoensis , P. quisquiliarum and S. antarctica . Based on the cumulative differences, strain PN2T was identified as representing a novel species and the name Paenisporosarcina indica sp. nov. was proposed. The type strain of Paenisporosarcina indica sp. nov. is PN2T (LMG 23933T = JCM 15114T). Furthermore, based on the morphological and chemotaxonomic characteristics, the species Sporosarcina antarctica was reclassified as a species of the genus Paenisporosarcina and renamed Paenisporosarcina antarctica comb. nov. In addition, an emended description of the genus Paenisporosarcina is presented.

scholarly journals Pedobacter jejuensis sp. nov., isolated from soil of a pine grove, and emended description of the genus Pedobacter

2014 ◽  
Vol 64 (Pt_5) ◽  
pp. 1789-1794 ◽  
Author(s):  
MooChang Kook ◽  
YongJin Park ◽  
Tae-Hoo Yi
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Gene Sequence ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Content Type ◽  
Link Type ◽  
Emended Description

A Gram-stain-negative, strictly aerobic, non-motile, rod-shaped bacterial strain, THG-DR3T, was isolated from soil of a pine grove in Jeju island, Republic of Korea. Strain THG-DR3T grew optimally at 20–25 °C, at pH 7.0–8.0 and in R2A broth without added NaCl. 16S rRNA gene sequence analysis indicated that strain THG-DR3T belongs to the genus Pedobacter . The closest relatives based on 16S rRNA gene sequence similarity were Pedobacter aquatilis AR107T (98.0 %), Pedobacter alluvionis NWER-II11T (97.7 %), Pedobacter borealis G-1T (97.7 %) and Pedobacter ginsengiterrae DCY49T (97.4 %). The G+C content of the genomic DNA of strain THG-DR3T was 47.5 mol%. Levels of DNA–DNA relatedness between strain THG-DR3T and its closest phylogenetic neighbours were below 44.7 %. The presence of menaquinone 7 and of iso-C15 : 0 and summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c) as the major fatty acids supported the affiliation of strain THG-DR3T to the genus Pedobacter . The polar lipids of strain THG-DR3T consisted of phosphatidylethanolamine, three unidentified aminophospholipids, five unidentified aminolipids and three unidentified lipids. The results of physiological and biochemical tests allowed the differentiation of strain THG-DR3T from recognized species of the genus Pedobacter . Strain THG-DR3T ( = KACC 17172T = JCM 18824T) is proposed as the type strain of a novel species of the genus Pedobacter , Pedobacter jejuensis sp. nov. An emended description of the genus Pedobacter is also proposed.

scholarly journals Faecalicoccus acidiformans gen. nov., sp. nov., isolated from the chicken caecum, and reclassification of Streptococcus pleomorphus (Barnes et al. 1977), Eubacterium biforme (Eggerth 1935) and Eubacterium cylindroides (Cato et al. 1974) as Faecalicoccus pleomorphus comb. nov., Holdemanella biformis gen. nov., comb. nov. and Faecalitalea cylindroides gen. nov., comb. nov., respectively, within the family Erysipelotrichaceae

2014 ◽  
Vol 64 (Pt_11) ◽  
pp. 3877-3884 ◽  
Author(s):  
Celine De Maesschalck ◽  
Filip Van Immerseel ◽  
Venessa Eeckhaut ◽  
Siegrid De Baere ◽  
Margo Cnockaert ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Content Type ◽  
Link Type

Strains LMG 27428T and LMG 27427 were isolated from the caecal content of a chicken and produced butyric, lactic and formic acids as major metabolic end products. The genomic DNA G+C contents of strains LMG 27428T and LMG 27427 were 40.4 and 38.8 mol%. On the basis of 16S rRNA gene sequence similarity, both strains were most closely related to the generically misclassified Streptococcus pleomorphus ATCC 29734T. Strain LMG 27428T could be distinguished from S. pleomorphus ATCC 29734T based on production of more lactic acid and less formic acid in M2GSC medium, a higher DNA G+C content and the absence of activities of acid phosphatase and leucine, arginine, leucyl glycine, pyroglutamic acid, glycine and histidine arylamidases, while strain LMG 27428 was biochemically indistinguishable from S. pleomorphus ATCC 29734T. The novel genus Faecalicoccus gen. nov. within the family Erysipelotrichaceae is proposed to accommodate strains LMG 27428T and LMG 27427. Strain LMG 27428T ( = DSM 26963T) is the type strain of Faecalicoccus acidiformans sp. nov., and strain LMG 27427 ( = DSM 26962) is a strain of Faecalicoccus pleomorphus comb. nov. (type strain LMG 17756T = ATCC 29734T = DSM 20574T). Furthermore, the nearest phylogenetic neighbours of the genus Faecalicoccus are the generically misclassified Eubacterium cylindroides DSM 3983T (94.4 % 16S rRNA gene sequence similarity to strain LMG 27428T) and Eubacterium biforme DSM 3989T (92.7 % 16S rRNA gene sequence similarity to strain LMG 27428T). We present genotypic and phenotypic data that allow the differentiation of each of these taxa and propose to reclassify these generically misnamed species of the genus Eubacterium formally as Faecalitalea cylindroides gen. nov., comb. nov. and Holdemanella biformis gen. nov., comb. nov., respectively. The type strain of Faecalitalea cylindroides is DSM 3983T = ATCC 27803T = JCM 10261T and that of Holdemanella biformis is DSM 3989T = ATCC 27806T = CCUG 28091T.

scholarly journals Pseudomonas piscis sp. nov., isolated from the profound head ulcers of farmed Murray cod (Maccullochella peelii peelii)

2020 ◽  
Vol 70 (4) ◽  
pp. 2732-2739 ◽  
Author(s):  
Yang Liu ◽  
Qiuhua Rao ◽  
Jochen Blom ◽  
Qiu Lin ◽  
Tuyan Luo
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Gene Sequence ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Content Type ◽  
Link Type ◽  
Murray Cod

A Gram-stain-negative, strictly aerobic, motile, rod-shaped bacterium with monopolar flagella, designated as MC042T, was isolated from the profound head ulcers of farmed Murray cod sampled from Zhejiang Province, China. Analysis of its 16S rRNA gene sequence and multilocus sequence analysis phylogeny showed that strain MC042T belonged to the genus Pseudomonas , showing the highest 16S rRNA gene sequence similarity to Pseudomonas juntendi BML3T (98.9 %), and less than 98.8 % similarity to other Pseudomonas species with validly published names. Whole-genome sequencing and phylogenetic reconstruction based on a core set of 1563 Pseudomonas genes further indicated that strain MC042T was most closely related to the clade formed by Pseudomonas protegens CHA0T and Pseudomonas saponiphila DSM 975T and distantly related to any of the validly published species of the genus Pseudomonas . Furthermore, strain MC042T could be distinguished from its closely related species of the genus Pseudomonas by its ability to assimilate maltose, d-xylose and melibiose, but not d-mannitol. The principal fatty acids were C16 : 0, summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1ω7c) and summed feature 8 (C18 : 1 ω7c and/or C18 : 1 ω6c). The respiratory quinone was Q-9. Polar lipids of strain MC042T comprised diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, unidentified glycolipids, an unidentified lipid, an unknown glycolipid and aminolipid. Based on its phenotypic, chemotaxonomic and phylogenetic features, strain MC042T is considered to represent a novel species, for which the name Pseudomonas piscis sp. nov. is proposed. The type strain is MC042T (=KCTC 72033T=MCCC 1K03575T).

scholarly journals Cellulomonas rhizosphaerae sp. nov., a novel actinomycete isolated from soil

2019 ◽  
Vol 69 (4) ◽  
pp. 1001-1008 ◽  
Author(s):  
Yuanyuan Tian ◽  
Chuanyu Han ◽  
Jiangmeihui Hu ◽  
Junwei Zhao ◽  
Chen Zhang ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Content Type ◽  
Link Type

A novel actinomycete, designated strain NEAU-TCZ24T, was isolated from soil and characterized using a polyphasic approach. The results of phylogenetic analysis based on the 16S rRNA gene sequence indicated that the organism should be assigned to the genus Cellulomonas and formed a stable clade with its closest relatives Cellulomonas terrae JCM 14899T (98.4 % 16S rRNA gene sequence similarity), Cellulomonas xylanilytica JCM 14281T (97.9 %) and Cellulomonas humilata JCM 11945T (97.7 %). The major menaquinones were identified as MK-9(H4) and MK-8(H4). The phospholipid profile was found to contain diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylinositolmannoside, a ninhydrin-positiveglycolipid, an unidentified phosphoglycolipid, an unidentified phospholipid and an unidentified lipid. The major fatty acids were identified as anteiso-C15 : 0, C18 : 1ω9c, C16 : 0 and anteiso-C17 : 0. Moreover, morphological and chemotaxonomic properties of NEAU-TCZ24T also confirmed the affiliation of the isolate to the genus Cellulomonas . However, multilocus sequence analysis based on five other house-keeping genes (gyrB, rpoB, recA, relA and atpD), DNA–DNA relatedness, physiological and biochemical data indicated that NEAU-TCZ24T could be distinguished from its closest relatives. Therefore, it is proposed that NEAU-TCZ24T represents a novel species of the genus Cellulomonas , for which the name Cellulomonas rhizosphaerae sp. nov. is proposed. The type strain is NEAU-TCZ24T (=CCTCC AA 2018042T=JCM 32383T).

Pedobacter tournemirensis sp. nov., isolated from a fault water sample of a deep Toarcian argillite layer

2013 ◽  
Vol 63 (Pt_1) ◽  
pp. 303-308 ◽  
Author(s):  
Laurent Urios ◽  
Laurent Intertaglia ◽  
Michel Magot
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Gene Sequence ◽  
16S Rrna Gene Sequence ◽  
Subsurface Water ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Content Type ◽  
Link Type

A Gram-negative bacterium, designated TF5-37.2-LB10T, was isolated from subsurface water of the Toarcian geological layer of Tournemire, France. Cells were non-motile straight rods that formed cream to light pink colonies on 10-fold diluted LB agar. Strain TF5-37.2-LB10T contained menaquinone 7 and its major fatty acids were iso-C15 : 0, summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1ω7c), iso-C17 : 0 3-OH and iso-C17 : 1ω9c. The G+C content of the genomic DNA was 46 mol%. Phylogenetic analysis of the 16S rRNA gene sequence placed strain TF5-37.2-LB10T within the genus Pedobacter , family Sphingobacteriaceae . Pedobacter composti TR6-06T and Pedobacter oryzae DSM 19973T were the closest phylogenetic relatives (93.5 and 93.3 % 16S rRNA gene sequence similarity, respectively). On the basis of 16S rRNA gene sequence comparison and physiological and biochemical characteristics, strain TF5-37.2-LB10T represents a novel species of the genus Pedobacter , for which the name Pedobacter tournemirensis sp. nov. is proposed. The type strain is TF5-37.2-LB10T ( = DSM 23085T = CIP 110085T = MOLA 820T).

scholarly journals Sphingomonas starnbergensis sp. nov., isolated from a prealpine freshwater lake

2013 ◽  
Vol 63 (Pt_3) ◽  
pp. 1017-1023 ◽  
Author(s):  
Hong Chen ◽  
Mareike Jogler ◽  
Brian J. Tindall ◽  
Hans-Peter Klenk ◽  
Manfred Rohde ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Gene Sequence ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Strictly Aerobic ◽  
Rrna Gene Sequence ◽  
Content Type ◽  
Link Type

A novel type of freshwater bacterium was isolated from the prealpine mesotrophic Starnberger See (Bavaria, southern Germany). Cells of strain 382T were Gram-negative and rod-shaped, motile and creamy-white. The isolate was strictly aerobic, catalase- and oxidase-positive, and grew at pH values of 6–9 (optimum, pH 7) and temperatures of 10–37 °C (optimum, 28 °C). The genomic G+C content of strain 382T was 64.1 mol%. Based on 16S rRNA gene sequence analyses, strain 382T belongs to the family Sphingomonadaceae and clusters within the genus Sphingomonas . Sphingomonas histidinilytica UM 2T and Sphingomonas wittichii DSM 6014T were the closest relatives, as indicated by the highest 16S rRNA gene sequence similarities (97.1 % and 96.8 %, respectively). Sphingomonas paucimobilis DSM 1098T (the type species of the genus Sphingomonas ) exhibited 95.3 % sequence similarity. This affiliation of strain 382T to the genus Sphingomonas is confirmed by the presence of Q-10 as the major respiratory quinone, two sphingoglycolipids, C14 : 0 2-OH as the major 2-hydroxy fatty acid and sym-homospermidine as the major polyamine. The main cellular fatty acids of strain 382T were C18 : 1ω7c (39 %), C16 : 1ω7c (21 %), C16 : 0 (10 %) and C14 : 0 2-OH (10 %). Based on the phylogenetic distance from other species of the genus Sphingomonas and its unusually high C16 : 1ω7c content, strain 382T represents a novel species of the genus Sphingomonas , for which the name Sphingomonas starnbergensis is proposed. The type strain is 382T ( = DSM 25077T  = LMG 26763T).

Phocaeicola faecicola sp. nov., isolated from porcine faeces

2021 ◽  
Vol 71 (9) ◽  
Author(s):  
Ji Young Choi ◽  
Seung-Hyeon Choi ◽  
Jam-Eon Park ◽  
Ji-Sun Kim ◽  
Jiyoung Lee ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Content Type ◽  
Link Type

An obligately anaerobic, non-motile, Gram-negative and rod-shaped strain (AGMB03916T) was isolated from faeces of a 2-week-old piglet raised at the National Institute of Animal Science in Wanju, Republic of Korea. Growth of strain AGMB03916T occurred at 30–45 °C (optimum, 37 °C), at pH 6–9 (optimum, pH 8) and in the presence of 0.5–1.0 % (w/v) NaCl. Based on the results of 16S rRNA gene sequence analyses, strain AGMB03916T was closely related to two validly published species of the genus Phocaeicola , Phocaeicola plebeius and Phocaeicola coprocola . The 16S rRNA gene sequence similarity of strain AGMB03916T compared to P. plebeius M12T (=KCTC 5793T) and P. coprocola M16T (=KCTC 5443T) were 96.3 and 95.0 %, respectively. The genomic DNA G+C content of strain AGMB03916T was 46.4 mol%. The average nucleotide identity values between strain AGMB03916T and the reference strains were 74.9–78.5 %. Cells were able to utilize d-glucose, lactose, sucrose, maltose, salicin, aesculin hydrolysis, cellobiose and raffinose. The major end product of metabolism was acetate. The major cellular fatty acids (>10 %) of the isolate were iso-C15 : 0, anteiso-C15 : 0, C16 : 0, C16 : 0 3-OH and summed feature 11 (iso-C17 : 0 3-OH and/or C18 : 2 DMA). On the basis of the genotypic, biochemical, chemotaxonomic, phenotypic and phylogenetic data, strain AGMB03916T represents a novel species of the genus Phocaeicola , for which the name Phocaeicola faecicola sp. nov. is proposed. The type strain is AGMB03916T (=KCTC 25014T=GDMCC 1.2574T).

scholarly journals Pseudoalteromonas arabiensis sp. nov., a marine polysaccharide-producing bacterium

2013 ◽  
Vol 63 (Pt_5) ◽  
pp. 1805-1809 ◽  
Author(s):  
Hidetoshi Matsuyama ◽  
Hideki Minami ◽  
Hirokazu Kasahara ◽  
Yoshihisa Kato ◽  
Masafumi Murayama ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Gene Sequence ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Strictly Aerobic ◽  
Rrna Gene Sequence ◽  
Content Type ◽  
Link Type

A novel exopolysaccharide-producing bacterium, designated strain k53T, was isolated from sediment from the Arabia Sea, Indian Ocean. The strain was Gram-negative, motile, strictly aerobic, oxidase-positive and catalase-positive, and required Na+ for growth. Its major isoprenoid quinone was ubiquinone-8 (Q-8), and its cellular fatty acid profile mainly consisted of C16 : 1ω7c, C16 : 0 and C18 : 1ω7c. The DNA G+C content was 43 mol%. 16S rRNA gene sequence analysis suggested that strain k53T is a member of the genus Pseudoalteromonas . Strain k53T exhibited close phylogenetic affinity to Pseudoalteromonas lipolytica LMEB 39T (98.0% 16S rRNA gene sequence similarity) and Pseudoalteromonas donghaensis HJ51T (97.3 %).The DNA–DNA reassociation values between strain k53T and P. lipolytica JCM 15903T and P. donghaensis LMG 24469T were 17 % and 12 %, respectively. Owing to the significant differences in phenotypic and chemotaxonomic characteristics, and phylogenetic analysis based on the 16S rRNA gene sequence and DNA–DNA relatedness data, the isolate merits classification as a representative of a novel species, for which the name Pseudoalteromonas arabiensis is proposed. The type strain of this species is k53T ( = JCM 17292T = NCIMB 14688T).

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