scholarly journals Luteirhabdus pelagi gen. nov., sp. nov., a novel member of the family Flavobacteriaceae, isolated from the West Pacific Ocean

Author(s):  
Wen-Ting Ren ◽  
Fan-Xu Meng ◽  
Li-Li Guo ◽  
Li Sun ◽  
Xue-Wei Xu ◽  
...  

AbstractA Gram-stain-negative, aerobic, and yellow-pigmented bacterium, designated A3-108T, was isolated from seawater of the West Pacific Ocean. Cells were non-motile and rod-shaped, with carotenoid-type pigments. Strain A3-108T grew at pH 6.0–8.5 (optimum 6.5) and 15–40 °C (optimum 28 °C), in the presence of 0.5–10% (w/v) NaCl (optimum 1.0%). It possessed the ability to produce H2S. Based on the 16S rRNA gene analysis, strain A3-108T exhibited highest similarity with Aureisphaera salina A6D-50T (90.6%). Phylogenetic analysis shown that strain A3-108T affiliated with members of the family Flavobacteriaceae and represented an independent lineage. The principal fatty acids were iso-C15:0, iso-C17:0 3-OH, iso-C15:1 G, and summed feature 3 (C16:1ω7c and/or C16:1ω6c). The sole isoprenoid quinone was MK-6. The major polar lipids were phosphatidylethanolamine, one unidentified aminophospholipid, one unidentified aminolipid and one unidentified lipid. The ANIb, in silico DDH and AAI values among the genomes of strain A3-108T and three reference strains were 67.3–71.1%, 18.7–22.1%, and 58.8–71.4%, respectively. The G + C content was 41.0%. Distinctness of the phylogenetic position as well as differentiating chemotaxonomic and other phenotypic traits revealed that strain A3-108T represented a novel genus and species of the family Flavobacteriaceae, for which the name Luteirhabdus pelagi gen. nov., sp. nov. is proposed (type strain, A3-108T = CGMCC 1.18821T = KCTC 82563T).

2021 ◽  
Author(s):  
Wen-Ting Ren ◽  
Fan-Xu Meng ◽  
Li-Li Guo ◽  
Li Sun ◽  
Xue-Wei Xu ◽  
...  

Abstract Gram-stain-negative, aerobic and yellow-pigmented bacterium, designated A3-108T, was isolated from seawater of the West Pacific Ocean. Cells were non-motile and rod-shaped, with carotenoid-type pigments. The strain A3-108T grew at pH 6.0-8.5 (optimum 6.5) and 15–40℃ (optimum 28℃), in the presence of 0.5–10% (w/v) NaCl (optimum 1.0%). It possessed the ability to produce H2S. Based on the 16S rRNA gene analysis, strain A3-108T exhibited highest similarity with Aureisphaera salina A6D-50T (90.6%). Phylogenetic analysis shown that strain A3-108T affiliated with the family Flavobacteriaceae and represented an independent lineage. The principal fatty acids were iso-C15:0, iso-C17:0 3-OH, iso-C15:1 G and summed feature 3 (C16:1ω7c and/or C16:1ω6c). The sole isoprenoid quinone was MK-6. The major polar lipids were phosphatidylethanolamine, one unidentified aminophospholipid, one unidentified aminolipid and one unidentified lipid. The ANIb, in silico DDH and AAI values among the genomes of strain A3-108T and the reference strains were 67.3–71.1%, 18.7–22.1% and 58.8–71.4%, respectively. The G + C content was 41.0%. Differential phylogenetic distinctiveness, chemotaxonomic differences as well as phenotypic properties revealed that strain A3-108T represented a novel genus and species of the family Flavobacteriaceae, for which the name Luteorhabdos pelagi gen. nov., sp. nov. is proposed (type strain, A3-108T = CGMCC 1.18821T = KCTC 82563T).


2020 ◽  
Vol 70 (7) ◽  
pp. 4345-4350 ◽  
Author(s):  
Zehao Xue ◽  
Sidong Zhu ◽  
Xiunuan Chen ◽  
Ting Chen ◽  
Na Ren ◽  
...  

A Gram-stain-negative bacterium, designated strain 40Bstr34T, isolated from a sediment sample from the West Pacific Ocean, was taxonomically characterized by using a polyphasic approach. The strain was phylogenetically close to Jiella aquimaris LZB041T and Jiella endophytica CBS5Q-3T, with 16S rRNA gene sequence similarities of 98.5 and 97.1 %, respectively. The genome of strain 40Bstr34T featured a G+C content of 65.7 % for a 5.8 Mb chromosome. Up-to-date bacterial core gene set analysis revealed that strain 40Bstr34T represents one independent lineage with J.aquimaris LZB041T. In silico DNA–DNA hybridization values between strain 40Bstr34T and its phylogenetic neighbours ranged from 30.3–34.2 %, below the cutoff of 70 %. In addition, the corresponding average nucleotide identity values were between 81.8–83.7 %, which are lower than 95 % threshold. The predominant cellular fatty acids of strain 40Bstr34T were summed feature 8 (C18 : 1  ω6c and/or C18 : 1  ω7c), cyclo-C19 : 0  ω8c and iso-C17 : 0 3-OH, and ubiquinone-10 as the predominant respiratory quinone. The major polar lipids included phosphatidylethanolamine, phosphatidylmonomethylethanolamine, diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, two unidentified aminolipids and two unidentified lipids. Based on the results of phenotypic, chemotaxonomic and genetic analyses, strain 40Bstr34T is identified as representing a novel species of the genus Jiella for which the name Jiella pacifica sp. nov. is proposed. The type strain is 40Bstr34T (=JCM 33903T=MCCC 1K04569T).


2000 ◽  
Vol 63 (11) ◽  
pp. 1483-1487 ◽  
Author(s):  
Ping-Jyun Sung ◽  
Shwu-Li Wu ◽  
Hsiu-Jung Fang ◽  
Michael Y. Chiang ◽  
Jing-Yun Wu ◽  
...  

1993 ◽  
Vol 71 (10) ◽  
pp. 2099-2110 ◽  
Author(s):  
Greg J. Klassen

Gill material of 12 species of Indo-Pacific boxfishes was examined for species of Haliotrema. Four parasite species were recorded: H. trochaderoi n.sp., H. crymanum n.sp., H. lactoriae, and H. triacanthi. Haliotrema trochaderoi was taken from Ostracion meleagris, O. cyanurus, and O. cubicus from the West Pacific Ocean. Haliotrema crymanum was taken from O. cubicus from the Indo-West Pacific Ocean. The morphology of these two species was compared with that of 10 other species of Haliotrema with similar male copulatory apparatus. Duncan's multiple range test indicated the two new species to be distinct from one another in all but 5 of 35 measurements (p = 0.005); multivariate analysis of variance and canonical discriminant analysis indicated them to be distinct from all Atlantic species of Haliotrema from boxfishes (p = 0.001). Haliotrema lactoriae was recorded from Lactoria cornuta, L. fornasini, and L. reipublicae, in addition to its type host, L. diaphana. It is specific to species of Lactoria but occurs on these throughout the Indo-Pacific Ocean. Haliotrema triacanthi, previously known only from species of Triacanthus (Tetraodontiformes: Triacanthidae), was also found on Ostracion rhinorhynchus. It occurs on its hosts in the Indo-West Pacific Ocean.


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