scholarly journals Pseudomonas hydrolytica sp. nov., multiple polymer-degrading bacteria isolated from soil in China

2020 ◽  
Vol 70 (5) ◽  
pp. 3049-3054 ◽  
Author(s):  
Shuang Zhou ◽  
Yan Wang ◽  
Hongmei Xia ◽  
Dongbo Liu ◽  
Shan Chen ◽  
...  

A short rod-shaped, Gram-stain-negative strain that can degrade multiple polymers was isolated from forest soil in China and designated as DSWY01T. The results of 16S rRNA gene sequence analysis showed that this isolate shared high similarities with Pseudomonas alcaliphila NBRC 102411T (99.3 %), Pseudomonas mendocina NBRC 14162T (99.2%) and Pseudomonas oleovorans NBRC 13583T (99.0%). The results of phylogenetic analysis based on 16S rRNA gene sequence and multilocus sequence analysis (recA, gyrB, nuoD, glnS and rpoD) indicated that strain DSWY01T belongs to the genus Pseudomonas and is a member of the P. oleovorans group in an independent branch. The average nucleotide identity and digital DNA–DNA hybridization between the genome of strain DSWY01T and the genomes of other species (ANIb 77.72–89.65 %; GGDC 15.50–31.10 %) showed that the isolate represents a novel species. The DNA G+C content of strain DSWY01T was 63.67 mol%, and the major cellular fatty acids (>15 %) were a mixture of C18 : 1ω7c/C18 : 1ω6c and C16 : 0. The polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine and two unidentified lipids, and the major quinone was CQ-10. The morphological, physiological and biochemical characteristics of the isolate were then compared with those of reference type strains. The isolate differed considerably from its closest relatives and is representative of a novel species of Pseudomonas , for which the name Pseudomonas hydrolytica sp. nov. is proposed. The type strain is DSWY01T (=DSM 106702T=CCTCC AB 2018053T).

2012 ◽  
Vol 62 (Pt_5) ◽  
pp. 1037-1041 ◽  
Author(s):  
Ling-Ling Yang ◽  
Tao Ao ◽  
Xing-Hong Wang ◽  
Jie He ◽  
Hans-Peter Klenk ◽  
...  

A Gram-positive and aerobic bacterium, designated strain YIM 49065T, was isolated from rhizospheric soil of Jatropha curcas in Yunnan, China. This isolate formed branched and fragmented mycelia containing ll-diaminopimelic acid as the diagnostic diamino acid in the cell-wall peptidoglycan. The major cellular fatty acid profile was characterized by iso-C14 : 0, iso-C15 : 0 and iso-C16 : 0, and the predominant menaquinone was MK-8(H4). The DNA G+C content was 69.6 mol%. A phylogenetic analysis based on 16S rRNA gene sequence demonstrated that strain YIM 49065T was closely associated with Intrasporangium calvum DSM 43043T and Humihabitans oryzae KV-657T, exhibiting 98.8 % and 98.6 % 16S rRNA gene sequence similarities, respectively. Furthermore, DNA–DNA hybridizations among strains YIM 49065T, I. calvum DSM 43043T and H. oryzae DSM 22331T indicated that this isolate represented a novel species in the genus Intrasporangium . On the basis of these data, we proposed one novel species, Intrasporangium mesophilum sp. nov., for strain YIM 49065T ( = DSM 23217T  = CCTCC AA 209077T). Additionally, the comparison of biochemical and phylogenetic characters supported the reclassification of Humihabitans oryzae as a separate species within the genus Intrasporangium , Intrasporangium oryzae comb. nov. (type strain KV-657T  = JCM 15924T  = NBRC 101802T  = NRRL B-24470T).


2012 ◽  
Vol 62 (Pt_9) ◽  
pp. 2150-2155 ◽  
Author(s):  
Revti Raichand ◽  
Siddhika Pareek ◽  
Nitin Kumar Singh ◽  
Shanmugam Mayilraj

A Gram-positive, motile, short rod-shaped, orange pigmented bacterium, designated strain IMTB-3094T, was isolated from a water sample collected from Tikkar Tal Lake, Haryana, and subjected to detailed polyphasic taxonomic analysis. Strain IMTB-3094T possessed most of the phenotypic and chemotaxonomic properties of the genus Exiguobacterium and, based on 16S rRNA gene sequence analysis, was assigned to this genus. Strain IMTB-3094T exhibited the highest 16S rRNA gene sequence similarity to Exiguobacterium mexicanum MTCC 7759T (99.5 %) followed by Exiguobacterium aurantiacum MTCC 6414T (99.1 %), Exiguobacterium aestuarii MTCC 7750T (98.0 %), Exiguobacterium profundum MTCC 10851T (98.0 %) and Exiguobacterium marinum MTCC 7751T (98.0 %). The G+C content of the genomic DNA of strain IMTB-3094T was 53.2 mol% and a DNA–DNA relatedness study confirmed that it represents a novel species. The major fatty acids of strain IMTB-3094T were iso-C17 : 0 (16.1 %), anteiso-C13 : 0 (19.0 %), iso-C13 : 0 (11.9 %), iso-C15 : 0 (9.8 %) and iso-C17 : 1 (12.7 %). The predominant quinones were MK-7 (55.0 %) and MK-6 (26.0 %) with minor amounts of MK-8 (12.0 %). Based on phenotypic, chemotaxonomic and phylogenetic analyses, strain IMTB-3094T represents a novel species of the genus Exiguobacterium , for which the name Exiguobacterium aquaticum sp. nov. is proposed. The type strain is IMTB-3094T ( = MTCC 10958T  = JCM 17977T).


Author(s):  
Zeng-hong Gao ◽  
Qiu-mei Zhang ◽  
Ying-ying Lv ◽  
You-qi Wang ◽  
Bing-nan Zhao ◽  
...  

Three Gram-stain-negative, aerobic, motile and rod-shaped bacterial strains, 7Q-K02T, DHF22T and DHOM02T, were isolated from forest soil sampled at Dinghushan Biosphere Reserve, Guangdong Province, China. Strains 7Q-K02T, DHF22T and DHOM02T grew at 4–37, 4–42 and 12–37 °C, pH 3.0–8.5, 3.5–8.5 and 5.0–8.0, and in the presence of 0–3.0, 0–3.5 and 0–2.5 % (w/v) NaCl; with optima at 28–33, 28 and 28–33 °C, pH 3.5–6.5, 4.0–5.5 and 6.5–7.0, and 0–1.5, 0–1.5 and 0.5–1.5 % (w/v) NaCl, respectively. Strains 7Q-K02T and DHF22T have the highest 16S rRNA gene sequence similarities of 99.0 and 98.0 % to Paraburkholderia sacchari LMG 19450T and 97.7 % between themselves, while strain DHOM02T shares the highest similarity of 98.4 % to ‘Burkholderia rinojensis’ A396T followed by 98.3 % to Burkholderia plantarii ATCC 43733T. In the 16S rRNA gene sequence phylogram, strain 7Q-K02T formed a sister branch with Paraburkholderia sacchari , Paraburkholderia oxyphila and Paraburkholderia paradisi , and strain DHF22T was separated from all other species within the genus Paraburkholderia , while strain DHOM02T formed a separated clade with members of the genus Burkholderia . The DNA G+C contents of strains 7Q-K02T, DHF22T and DHOM02T wwe 64.3, 65.4 and 66.6 %, respectively. Digital DNA–DNA hybridization (dDDH) and average nucleotide identity (ANI) values of strains 7Q-K02T, DHF22T and closely related Paraburkholderia strains were in the ranges of 25.5–43.7 % and 81.5–91.3 %, respectively. While dDDH and ANI values between strain DHOM02T and Burkholderia strains with genome sequence data were in the ranges of 22.4–31.0 % and 78.2–86.1 %, respectively. These three strains have the same major respiratory quinone: ubiquinone-8. Strains 7Q-K02T, DHF22T and DHOM02T have C16 : 0, C17 : 0 cyclo, C19 : 0 cyclo ω8c and summed feature 8 (C18 : 1  ω7c/C18 : 1  ω6c) as their major fatty acid compositions. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. On the basis of phenotypic, phylogenetic, genomic analyses and chemotaxonomic data, strains 7Q-K02T and DHF22T represent two novel species of the genus Paraburkholderia , for which the names Paraburkholderia acidiphila sp. nov. (type strain 7Q-K02T=CGMCC 1.15433T=KCTC 62472T=LMG 29209T) and Paraburkholderia acidisoli sp. nov. (type strain DHF22T=GDMCC 1.1448T=LMG 30262T) are proposed, while strain DHOM02T represents a novel species in the genus Burkholderia , for which the name Burkholderia guangdongensis sp. nov. (type strain DHOM02T=KCTC 42625T=LMG 28843T) is proposed. We also propose to transfer Burkholderia ultramafica to the genus Paraburkholderia as Paraburkholderia ultramafica comb. nov. based mainly on the results of phylogenomic analysis.


2020 ◽  
Vol 70 (12) ◽  
pp. 6381-6389 ◽  
Author(s):  
Shih-Yi Sheu ◽  
Li-Chu Chen ◽  
Che-Chia Yang ◽  
Aurelien Carlier ◽  
Wen-Ming Chen

A novel Gram-negative, aerobic, non-motile, ovoid to rod-shaped bacterium, designated NBD-18T, was isolated from a freshwater river in Taiwan. Optimal growth occurred at 30 °C, at pH 6 and in the absence of NaCl. The predominant fatty acids of strain NBD-18T were C16 : 0, summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c), C17 : 0 cyclo and summed feature 8 (C18 : 1 ω7c and/or C18 : 1 ω6c). The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and phosphatidyldimethylethanolamine. The major polyamine was putrescine. The major isoprenoid quinone was Q-8. The genomic DNA G+C content of strain NBD-18T was 50.9 %. Strain NBD-18T was most closely related to Orrella dioscoreae LMG 29303T and Algicoccus marinus HZ20T at a 16S rRNA gene sequence similarity of 97.7 %. 16S rRNA gene sequence similarity between O. dioscoreae LMG 29303T and A. marinus HZ20T was 97.7 %. Phylogenetic analyses based on 16S rRNA gene sequences and an up-to-date bacterial core gene set indicated that strain NBD-18T, O. dioscoreae LMG 29303T and A. marinus HZ20T are affiliated with the same genus. Digital DNA–DNA hybridization, average nucleotide identity and average amino acid identity values among these three strains supported that they belong to the same genus and that strain NBD-18T represents a novel species. Thus, A. marinus HZ20T should be reclassified as Orrella marina comb. nov. based on the rules for priority of publication and validation. On the basis of the genotypic, chemotaxonomic and phenotypic data, strain NBD-18T represents a novel species in the genus Orrella , for which the name Orrella amnicola sp. nov. is proposed. The type strain is NBD-18T (=BCRC 81197T=LMG 31338T).


2012 ◽  
Vol 62 (Pt_4) ◽  
pp. 883-889 ◽  
Author(s):  
Ishwinder Kaur ◽  
A. P. Das ◽  
M. Acharya ◽  
H.-P. Klenk ◽  
A. Sree ◽  
...  

A novel coccoid-shaped strain, AS/ASP6 (II)T, was isolated from a sample taken from Plakortis simplex (Schulze), a marine sponge, collected at a depth of 30 m from the Bay of Bengal. This strain was identified by using a polyphasic taxonomic approach. The results of 16S rRNA gene sequence analysis showed that strain AS/ASP6 (II)T should be assigned to the genus Planococcus . Chemotaxonomic data (A4α-type peptidoglycan; MK-6, MK-7 and MK-8 menaquinones; mainly branched cellular fatty acids; and phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol as cellular phospholipids) supported taxonomic placement in the genus Planococcus . Phylogenetic analysis of the 16S rRNA gene sequence showed that strain AS/ASP6 (II)T belonged to the genus Planococcus and was closely related to the type strains of Planococcus maritimus (99.1 %) followed by Planococcus rifietoensis (98.6 %), Planococcus maitriensis (98.5 %), Planococcus citreus (98.3 %), Planococcus salinarum (98.1 %), Planococcus columbae (97.9 %), Planococcus donghaensis (97.8 %) and Planococcus antarcticus (97.7 %); DNA–DNA hybridization values obtained were well below the threshold that is required for the proposal of a novel species. The G+C content of the genomic DNA was 51.0 mol%. The phenotypic and genotypic data showed that strain AS/ASP6 (II)T merits recognition as a representative of a novel species of the genus Planococcus , for which the name Planococcus plakortidis sp. nov. is proposed; the type strain is AS/ASP6 (II)T ( = MTCC 8491T = DSM 23997T).


2014 ◽  
Vol 64 (Pt_11) ◽  
pp. 3877-3884 ◽  
Author(s):  
Celine De Maesschalck ◽  
Filip Van Immerseel ◽  
Venessa Eeckhaut ◽  
Siegrid De Baere ◽  
Margo Cnockaert ◽  
...  

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.


2020 ◽  
Vol 70 (4) ◽  
pp. 2732-2739 ◽  
Author(s):  
Yang Liu ◽  
Qiuhua Rao ◽  
Jochen Blom ◽  
Qiu Lin ◽  
Tuyan Luo

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).


2019 ◽  
Vol 69 (4) ◽  
pp. 1001-1008 ◽  
Author(s):  
Yuanyuan Tian ◽  
Chuanyu Han ◽  
Jiangmeihui Hu ◽  
Junwei Zhao ◽  
Chen Zhang ◽  
...  

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).


2013 ◽  
Vol 63 (Pt_1) ◽  
pp. 303-308 ◽  
Author(s):  
Laurent Urios ◽  
Laurent Intertaglia ◽  
Michel Magot

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).


2013 ◽  
Vol 63 (Pt_3) ◽  
pp. 1017-1023 ◽  
Author(s):  
Hong Chen ◽  
Mareike Jogler ◽  
Brian J. Tindall ◽  
Hans-Peter Klenk ◽  
Manfred Rohde ◽  
...  

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).


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