scholarly journals Permianibacter aggregans gen. nov., sp. nov., a bacterium of the family Pseudomonadaceae capable of aggregating potential biofuel-producing microalgae

2014 ◽  
Vol 64 (Pt_10) ◽  
pp. 3503-3507 ◽  
Author(s):  
Hui Wang ◽  
Tianling Zheng ◽  
Russell T. Hill ◽  
Xiaoke Hu

A novel bacterial strain, capable of aggregating potential biofuel-producing microalgae, was isolated from the phycosphere of an algal culture and designated HW001T. The novel bacterial strain was identified on the basis of its phylogenetic, genotypic, chemotaxonomic and phenotypic characteristics in this study. Cells were aerobic, Gram-negative rods. 16S rRNA gene-based phylogenetic analysis revealed that strain HW001T is affiliated with the family Pseudomonadaceae in the phylum Proteobacteria , but forms a distinct clade within this family. The DNA G+C content of strain HW001T was 55.4 mol%. The predominant cellular fatty acids were iso-C15 : 0, summed feature 9 (iso-C17 : 1ω9c), C16 : 0 and summed feature 3 (C16 : 1ω7c/C16 : 1ω6c). Q-8 was the main respiratory quinone. The polar lipid profile contained phosphatidylethanolamine, an unidentified aminophospholipid and some unidentified lipids. Based on the extensive polyphasic analysis, strain HW001T represents a novel species of a new genus in the family Pseudomonadaceae , for which the name Permianibacter aggregans gen. nov., sp. nov., is proposed. The type strain of the type species is HW001T ( = CICC 10856T = KCTC 32485T).

2012 ◽  
Vol 62 (Pt_7) ◽  
pp. 1528-1535 ◽  
Author(s):  
Dong-Heon Lee ◽  
Sun Ja Cho ◽  
Suk Min Kim ◽  
Sun Bok Lee

A Gram-staining-negative, strictly aerobic, non-motile, yellow-pigmented bacterium, designated strain M091T, was isolated from seawater at Damupo beach in Pohang, Republic of Korea, and investigated using a polyphasic taxonomic approach. The novel strain grew optimally at 25 °C, pH 7.0–8.0, and in the presence of 3 % (w/v) NaCl. In a phylogenetic analysis based on 16S rRNA gene sequences, strain M091T formed a lineage within the family Flavobacteriaceae that was distinct from the most closely related genera of Flaviramulus (95.1 % sequence similarity), Algibacter (94.9–93.9 %), Mariniflexile (94.8–94.2 %), Winogradskyella (94.8–93.2 %), Lacinutrix (94.7–93.8 %) and Tamlana (94.7–92.9 %). The polar lipid profile of the novel strain comprised phosphatidylethanolamine, two unidentified aminolipids, one unidentified phospholipid and seven unidentified lipids. The predominant cellular fatty acids were iso-C15 : 0 (20.5 %), iso-C17 : 0 3-OH (15.4 %), iso-C15 : 0 3-OH (12.4 %), C15 : 0 (10.9 %) and iso-C15 : 1 G (9.9 %). The genomic DNA G+C content of strain M091T was 34.4 mol% and the major respiratory quinone was MK-6. Based on phenotypic and genotypic data, strain M091T represents a new genus and novel species in the family Flavobacteriaceae , for which the name Postechiella marina gen. nov., sp. nov. is proposed. The type strain of the type species is M091T ( = KCTC 23537T = JCM 17630T).


2014 ◽  
Vol 64 (Pt_9) ◽  
pp. 3040-3045 ◽  
Author(s):  
Soo-Jin Kim ◽  
Joo-Hyeon Park ◽  
Jun-Muk Lim ◽  
Jae-Hyung Ahn ◽  
Rangasamy Anandham ◽  
...  

A Gram-stain-negative, short rod-shaped, non-flagellated, yellow bacterium, designated strain 5GHs7-2T, was isolated from a greenhouse soil sample in South Korea. 16S rRNA gene sequence analysis of strain 5GHs7-2T indicated that the isolate belonged to the family Chitinophagaceae , and exhibited the highest sequence similarities with members of the genera Terrimonas (89.2–92.6 %), Sediminibacterium (90.8–91.4 %) and Chitinophaga (89.2–91.7 %), Filimonas lacunae YT21T (91.7 %), members of the genus Segetibacter (90.2–91.6 %), Parasegetibacter luojiensis RHYL-37T (90.9 %) and Flavihumibacter petaseus T41T (91.2 %). Flexirubin-type pigments were present. The major cellular fatty acids of the novel strain were iso-C15 : 0, iso-C17 : 0 3-OH and iso-C15 : 1 G. The polar lipid profile consisted of a large amount of phosphatidylethanolamine, and moderate and small amounts of several unknown aminolipids and lipids. The only respiratory quinone of strain 5GHs7-2T was MK-7, and the DNA G+C content was 47.6 mol%. On the basis of the evidence presented, it is concluded that strain 5GHs7-2T represents a novel species of a new genus in the family Chitinophagaceae , for which the name Parafilimonas terrae gen. nov., sp. nov. is proposed. The type strain of the type species is 5GHs7-2T ( = KACC 17343T = DSM 28286T).


2020 ◽  
Vol 70 (3) ◽  
pp. 2108-2114 ◽  
Author(s):  
Sára Szuróczki ◽  
Gorkhmaz Abbaszade ◽  
Attila Szabó ◽  
Károly Bóka ◽  
Peter Schumann ◽  
...  

The Gram-stain-negative, aerobic, non-motile, oxidase- and catalase-positive, rod-shaped yellow-coloured bacterial strain MG-N-17T was isolated from a water sample of Lake Fertő/Neusiedler See (Hungary). Results of phylogenetic analysis based on the 16S rRNA gene sequence revealed that the strain forms a distinct linage within the family Verrucomicrobiaceae of the phylum Verrucomicrobia , and its closest relatives are Verrucomicrobium spinosum DSM 4136T (94.38 %) and Roseimicrobium gellanilyticum DC2a-G7T (91.55 %). The novel bacterial strain prefers a weak alkaline environment and grows optimally between 22–28 °C in the absence of NaCl. The major isoprenoid quinones are MK-10, MK-11, MK-12 and MK-9. The major cellular fatty acids are anteiso-C15 : 0, C16 : 0, C16 : 1ω5c and iso-C14 : 0. The polar lipid profile contains phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine, two unidentified phospholipids and four unidentified glycolipids. The assembled draft genome of strain MG-N-17T had 44 contigs with an N50 value 348255 nt, 56.5× genome coverage, total length of 5 910 933 bp and G+C content of 56.9 mol%. Strain MG-N-17T (=DSM 106674T=NCAIM B.02643T) is proposed as the type strain of a new genus and species in the family Verrucomicrobiaceae , for which the name Phragmitibacter flavus gen. nov., sp. nov. is proposed.


2012 ◽  
Vol 62 (Pt_9) ◽  
pp. 2213-2217 ◽  
Author(s):  
Nupur ◽  
Shalley Sharma ◽  
Pradip Kumar Singh ◽  
Korpole Suresh ◽  
Pinnaka Anil Kumar

A novel, Gram-staining-negative, yellow-coloured, rod-shaped, obligately aerobic, non-motile bacterium, designated strain AK7T, was isolated from seawater collected on the coast at Visakhapatnam, Andhra Pradesh, India. The predominant fatty acids of the novel strain were iso-C15 : 0, iso-C15 : 0 3-OH, C16 : 1ω5c, iso-C17 : 0 3-OH and summed features 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH) and 4 (iso-C17 : 1 I and/or anteiso-C17 : 1 B). The major respiratory quinone was MK-7 and the polar lipid profile comprised phosphatidylethanolamine, two unidentified aminolipids and four other unidentified lipids. In phylogenetic analysis based on 16S rRNA gene sequences, strain AK7T appeared most closely related to Fulvivirga kasyanovii KMM 6220T (95.9 % sequence similarity), a member of the family Flammeovirgaceae in the phylum Bacteroidetes . The genomic DNA G+C content of strain AK7T was 55.1 mol%. Based on the morphological, biochemical, physiological, chemotaxonomic and phylogenetic evidence, strain AK7T represents a novel species of the genus Fulvivirga for which the name Fulvivirga imtechensis sp. nov. is proposed. The type strain is AK7T ( = MTCC 11053T  = JCM 17390T).


2013 ◽  
Vol 63 (Pt_5) ◽  
pp. 1639-1645 ◽  
Author(s):  
Lei Zhang ◽  
Xihui Shen ◽  
Yingbao Liu ◽  
Shiqing Li

A Gram-staining-negative, rod-shaped, gliding and pale-pink-pigmented bacterium, designated strain ZLM-10T, was isolated from a soil sample collected from an arid area in Xinjiang province, China, and characterized in a taxonomic study using a polyphasic approach. The novel strain grew optimally at 30–37 °C and in the presence of 2 % (w/v) sea salts. The only respiratory quinone detected was MK-7 and the major cellular fatty acids were summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1ω7c), iso-C15 : 0 and iso-C17 : 0 3-OH. The polar lipids consisted of diphosphatidylglycerol, phosphatidylethanolamine, an unidentified aminolipid and two unidentified aminophospholipids. The DNA G+C content was 45.4 mol%. Flexirubin-type pigments were not produced. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain ZLM-10T was a member of the phylum Bacteroidetes and appeared most closely related to Cesiribacter roseus 311T (90.2 % sequence similarity), Marivirga sericea LMG 13021T (89.2 %), Cesiribacter andamanensis AMV16T (89.1 %) and Marivirga tractuosa DSM 4126T (89.1 %). On the basis of phenotypic and genotypic data and phylogenetic inference, strain ZLM-10T should be classified as a novel species of a new genus in the family Flammeovirgaceae , for which the name Nafulsella turpanensis gen. nov., sp. nov. is proposed. The type strain of the type species is ZLM-10T ( = CCTCC AB 208222T = KCTC 23983T).


2012 ◽  
Vol 62 (Pt_9) ◽  
pp. 2224-2228 ◽  
Author(s):  
Hiromi Uchida ◽  
Koei Hamana ◽  
Masayuki Miyazaki ◽  
Takao Yoshida ◽  
Yuichi Nogi

A Gram-stain-negative, aerobic, motile, orange-pigmented, slightly halophilic, rod-shaped bacterium, designated strain JAMH 0132T, was isolated from the trophosome of a tubeworm in Kagoshima Bay, Japan, and its taxonomic position was investigated using a polyphasic approach. The novel strain grew optimally at 28–30 °C and with about 2.0 % (w/v) NaCl. Chemotaxonomic analysis showed that Q-10 was the predominant respiratory quinone and that C18 : 1ω7c, C16 : 0 2-OH and C16 : 0 were the major fatty acids. Sphingoglycolipid, phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol and phosphatidylcholine were the major polar lipids. The genomic DNA G+C content was 60.1 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain JAMH 0132T belonged to the family Sphingomonadaceae , within the class Alphaproteobacteria . The novel strain appeared most closely related to Sphingopyxis baekryungensis SW-150T (95.1 % 16S rRNA gene sequence similarity) and showed less sequence similarity with representatives of the genera Blastomonas , Sphingomonas , Sphingosinicella and Novosphingobium (<94.8 %). In having no detectable polyamine, strain JAMH 0132T differed from members of all genera currently in the family Sphingomonadaceae . On the basis of its phenotypic properties and phylogenetic distinctiveness, strain JAMH 0132T represents a novel species of a new genus in the family Sphingomonadaceae for which the name Parasphingopyxis lamellibrachiae gen. nov., sp. nov. is proposed. The type strain of Parasphingopyxis lamellibrachiae gen. nov., sp. nov. is JAMH 0132T ( = JCM 15549T  = NCIMB 14486T).


2020 ◽  
Vol 70 (8) ◽  
pp. 4569-4575 ◽  
Author(s):  
Qian Wang ◽  
Feng Liu ◽  
De-Chao Zhang

The Gram-stain-negative, orange-pigmented, non-spore-forming, non-motile, strictly aerobic, rod-shaped bacterial strain, designated TP-CH-4T, was isolated from a seamount near the Yap Trench in the tropical western Pacific. The optimal growth conditions were determined to be at pH 7–8, 25–30 °C and in the presence of 2 % (w/v) NaCl. The major respiratory quinone was MK-6. The polar lipid profile contained phosphatidylethanolamine, two unidentified aminolipids, two unidentified phospholipids and three unidentified polar lipids. The predominant cellular fatty acids were iso-C15 : 0 and summed feature 1 (composed of C13 : 03-OH and/or iso-C15 : 1H). Phylogenetic analysis of 16S rRNA gene sequences revealed that strain TP-CH-4T was a member of the family Flavobacteriaceae and formed a distinct lineage. Strain TP-CH-4T displayed highest sequence similarities to Pseudozobellia thermophila KMM 3531T (95.1 %) and Flagellimonas flava A11T (93.9 %). Genome sequencing revealed the strain TP-CH-4T has a genome size of 4.5 Mbp and a G+C content of 44.5 mol%. Collectively, based on phenotypic, chemotaxonomic, phylogenetic and genomic evidence, strain TP-CH-4T represents a novel species of a novel genus of the family Flavobacteriaceae , for which the name Pelagihabitans pacificus gen. nov., sp. nov. is proposed. The type strain of Pelagihabitans pacificus is TP-CH-4T (=CGMCC 1.17120T=KCTC 72434T).


Author(s):  
Vadim Kevbrin ◽  
Yulia Boltyanskaya ◽  
Veronika Koziaeva ◽  
Maria Uzun ◽  
Denis Grouzdev

A prosthecate bacterial strain, designated G-192T, was isolated from decaying biomass of a haloalkaliphilic cyanobacterium Geitlerinema sp. Z-T0701. The cells were aerobic, Gram-negative, non-endospore-forming and dimorphic, occurring either as sessile bacteria with a characteristic stalk or as motile flagellated cells. The strain utilized a limited range of substrates, mostly peptonaceous, but was able to degrade whole proteins. Growth occurred at 5–46 °C (optimum, 35–40 °C), pH 7.3–10.3 (optimum, pH 8.0–9.0), 0–14 % NaCl (v/w; optimum, 2.0–6.0 %, v/w). The G+C content of the genomic DNA of strain G-192T was 66.8%. Phylogenetic analysis of the 16S rRNA gene sequence revealed that strain G-192T formed a distinct evolutionary lineage within the family Hyphomonadaceae . Strain G-192T showed the highest 16S rRNA sequence similarity to Glycocaulis profundi ZYF765T (95.2%), Oceanicaulis stylophorae GISW-4T (94.2%) and Marinicauda salina WD6-1T (95.5%). The major cellular fatty acids (>5% of the total) were C18:1 ω9c, C18:0 and 11-methyl-C18:1 ω7c. The major polar lipids were glycolipids and phospholipids. The only respiratory quinone was ubiquinone-10 (Q-10). Based on polyphasic results including phylogenomic data, the novel strain could be distinguished from other genera, which suggests that strain G-192T represents a novel species of a new genus, for which the name Alkalicaulis satelles gen. nov., sp. nov. is proposed. The type strain is G-192T (=VKM B-3306T=KCTC 72746T). The strain is the first representative of the stalked bacteria associated with a haloalkaliphilic cyanobacterium. Based on phylogenomic indices and phenotypic data, it is proposed to evolve two novel families Maricaulaceae fam. nov. and Robiginitomaculaceae fam. nov. out of the current family Hyphomonadaceae . In addition, it is proposed to place the first two families in the novel order Maricaulales ord. nov. and novel order Hyphomonadales ord. nov. is proposed to accommodate the family Hyphomonadaceae .


2012 ◽  
Vol 62 (Pt_6) ◽  
pp. 1259-1264 ◽  
Author(s):  
Ming-Hui Chen ◽  
Shih-Yi Sheu ◽  
Chaolun Allen Chen ◽  
Jih-Terng Wang ◽  
Wen-Ming Chen

A bacterial strain, isolated from a sample of reef-building coral (Isopora palifera) collected off the coast of southern Taiwan, was characterized using a polyphasic taxonomic approach. The strain, designated sw-2T, was Gram-staining-negative, aerobic, rod-shaped and motile, with subpolar flagella, and formed greyish pink colonies. Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain sw-2T was most closely related to Roseivivax halodurans Och 239T (97.4 % sequence similarity) and Roseivivax halotolerans Och 210T (96.4 %). The novel strain did not require NaCl for growth and exhibited optimal growth at 35–40 °C, at pH 7.5–8.0 and with 3–7 % (w/v) NaCl. It produced bacteriochlorophyll a under aerobic conditions. Summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c; 63.7 %) predominated in the cellular fatty acid profile. The novel strain’s major respiratory quinone was ubiquinone Q-10 and its genomic DNA G+C content was 68.8 mol%. The polar lipid profile consisted of a mixture of phosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, diphosphatidylglycerol, phosphatidyldimethylethanolamine, sulfo-quinovosyl diacylglycerol and three uncharacterized phospholipids. The level of DNA–DNA relatedness between strain sw-2T and Roseivivax halodurans Och 239T was only 15.0 %. The results of physiological and biochemical tests allowed the clear phenotypic differentiation of the novel strain from all established species of the genus Roseivivax . Based on the genotypic, phenotypic and chemotaxonomic data, strain sw-2T represents a novel species in the genus Roseivivax , for which the name Roseivivax isoporae sp. nov. is proposed. The type strain is sw-2T ( = LMG 25204T = BCRC 17966T).


2013 ◽  
Vol 63 (Pt_11) ◽  
pp. 4136-4140 ◽  
Author(s):  
Hui Wang ◽  
Junde Li ◽  
Tianling Zheng ◽  
Russell T. Hill ◽  
Xiaoke Hu

A novel bacterial strain, designated P4T, was isolated from Permian groundwater and identified on the basis of its phylogenetic, genotypic, chemotaxonomic and phenotypic characteristics. Cells were aerobic, Gram-stain-negative rods. 16S rRNA gene sequence-based phylogenetic analysis revealed that P4T is affiliated with the family Flammeovirgaceae in the phylum Bacteroidetes , but forms a distinct cluster within this family. The DNA G+C content of strain P4T was 45.2 mol%. The predominant cellular fatty acids were C16 : 1ω6c/C16 : 1ω7c and iso-C15 : 0. MK-7 was the main respiratory quinone. The polar lipids were phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, unidentified phospholipids, an unidentified aminolipid, unidentified glycolipids and unidentified polar lipids. Based on our extensive polyphasic analysis, a novel species in a new genus, Imperialibacter roseus gen. nov., sp. nov., is proposed. The type strain of Imperialibacter roseus is P4T ( = CICC 10659T = KCTC 32399T).


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