scholarly journals Proposal of Effusibacillus lacus gen. nov., sp. nov., and reclassification of Alicyclobacillus pohliae as Effusibacillus pohliae comb. nov. and Alicyclobacillus consociatus as Effusibacillus consociatus comb. nov.

2014 ◽  
Vol 64 (Pt_8) ◽  
pp. 2770-2774 ◽  
Author(s):  
Miho Watanabe ◽  
Hisaya Kojima ◽  
Manabu Fukui
Keyword(s):  
Fatty Acids ◽  
Type Species ◽  
Cellular Fatty Acid ◽  
Phenotypic Characterization ◽  
Rrna Gene ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type ◽  
Branched Chain Fatty Acids ◽  
Branched Chain

A novel thermophilic, facultatively anaerobic bacterium, strain skLN1T, was isolated from the sediment of a freshwater lake in Japan. Cells of strain skLN1T were rod-shaped and Gram-stain-variable. A KOH lysis test suggested that the cell wall of the isolate has a Gram-positive structure. For aerobic growth, the optimum pH was pH 7.25–7.50 and the optimum temperature was 50–52 °C. The G+C content of the genomic DNA was 50.8 mol%. Nitrate was reduced to nitrite. Alicyclic fatty acids were not detected, and branched-chain fatty acids were major components in the cellular fatty acid profile. MK-7 was the predominant respiratory quinone. Phylogenetic analysis based on 16S rRNA gene sequences revealed that the isolated strain was related most closely to Alicyclobacillus consociatus CCUG 53762T (95 % similarity). This analysis also showed that the monophyly of the genus Alicyclobacillus had been lost. On the basis of phylogenetic and phenotypic characterization, Effusibacillus lacus gen. nov., sp. nov. is proposed. The type strain of Effusibacillus lacus is skLN1T ( = NBRC 109614T = DSM 27172T). It is also proposed that Alicyclobacillus pohliae and Alicyclobacillus consociatus should be reclassified to the genus Effusibacillus as Effusibacillus pohliae comb. nov. and Effusibacillus consociatus comb. nov., respectively.

scholarly journals Cyclobacterium qasimii sp. nov., a psychrotolerant bacterium isolated from Arctic marine sediment

2012 ◽  
Vol 62 (Pt_9) ◽  
pp. 2133-2139 ◽  
Author(s):  
S. Shivaji ◽  
P. Vishnu Vardhan Reddy ◽  
S. S. S. Nageshwara Rao ◽  
Zareena Begum ◽  
Poorna Manasa ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Marine Sediment ◽  
Dna Hybridization ◽  
Type Species ◽  
Unsaturated Fatty Acids ◽  
Rrna Gene ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type ◽  
Sequence Similarities

A novel Gram-stain-negative, horseshoe-shaped, non-motile bacterium, designated strain M12-11BT, was isolated from a marine sediment sample collected at a depth of 200 m from Kongsfjorden, Svalbard. The colony colour was orangish red due to the presence of carotenoids. Fatty acids were dominated by branched and unsaturated fatty acids (90.8 %), with a high abundance of iso-C15 : 0 (14.9 %), anteiso-C15 : 0 (11.4 %), iso-C15 : 1 G (13.1 %), C15 : 1ω6c (5.4 %), C17 : 1ω6c (6.7 %), summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c; 9.3 %) and summed feature 9 (10-methyl C16 : 0 and/or iso-C17 : 1ω9c; 5.9 %). Strain M12-11BT contained MK-7 as the major respiratory quinone. The polar lipids consisted of phosphatidylcholine, phosphatidylethanolamine, one unidentified aminolipid and three unidentified lipids. Based on 16S rRNA gene sequence similarities, the type strains of Cyclobacterium amurskyense , Cyclobacterium marinum and Cyclobacterium lianum were most closely related to M12-11BT with sequence similarities of 98.2, 96.8 and 93.3 %, respectively. Other members of the family Cyclobacteriaceae had sequence similarities of <92.0 %. However, DNA–DNA hybridization with Cyclobacterium amurskyense KCTC 12363T and Cyclobacterium marinum DSM 745T showed relatedness values of only 24.5 and 32.5 % with respect to strain M12-11BT. Based on the results of DNA–DNA hybridization experiments and phenotypic and chemotaxonomic data, it appears that strain M12-11BT represents a novel species of the genus Cyclobacterium , for which the name Cyclobacterium qasimii sp. nov. is proposed; the type strain is M12-11BT ( = KCTC 23011T = NBRC 106168T) and it has a DNA G+C content of 40.5 mol%.

Salipiger mangrovisoli sp. nov., isolated from mangrove soil and the proposal for the reclassification of Paraphaeobacter pallidus as Salipiger pallidus comb. nov.

2021 ◽  
Vol 71 (7) ◽  
Author(s):  
Juan Du ◽  
Yang Liu ◽  
Tao Pei ◽  
Ming-Rong Deng ◽  
Honghui Zhu
Keyword(s):  
Type Strain ◽  
Type Species ◽  
Cellular Fatty Acid ◽  
Phylogenomic Analysis ◽  
Rrna Gene ◽  
Respiratory Quinone ◽  
Species Definition ◽  
Content Type ◽  
Link Type ◽  
Mangrove Soil

A novel Gram-stain-negative, aerobic and rod-shaped bacterial strain designated as 6D45AT was isolated from mangrove soil and characterized using a polyphasic taxonomic approach. Strain 6D45AT was found to grow at 10–37 °C (optimum, 28 °C), at pH 6.0–9.0 (optimum, 7.0) and in 0–5 % (w/v) NaCl (optimum, 2%). Phylogenetic analysis based on 16S rRNA gene sequences showed that strain 6D45AT fell into the genus Salipiger and shared 99.1 % identity with the closest type strain Salipiger pacificus CGMCC 1.3455T and less than 97.2 % identity with other type strains of this genus. The 34.8 % digital DNA–DNA hybridization (dDDH) and 88.3 % average nucleotide identity (ANI) values between strain 6D45AT and the closest relative above were well below recognized thresholds of 70 % DDH and 95–96 % ANI for species definition, implying that strain 6D45AT should represent a novel genospecies. The phylogenomic analysis indicated that strain 6D45AT formed an independent branch distinct from reference strains. The predominant cellular fatty acid of strain 6D45AT was summed feature 8 (C18 : 1  ω6c and/or C18 : 1  ω7c, 66.9 %); the polar lipids were diphosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, two unidentified aminolipids, two unidentified glycolipids and an unknown lipid; the respiratory quinone was Q-10. The genomic DNA G+C content was 66.5 mol %. Based on the phenotypic and genotypic characteristics, strain 6D45AT is concluded to represent a novel species of the genus Salipiger , for which the name Salipiger mangrovisoli sp. nov., is proposed. The type strain of the species is 6D45AT (=GDMCC 1.1960T=KCTC 82334T). We also propose the reclassification of Paraphaeobacter pallidus as Salipiger pallidus comb. nov. and ‘ Pelagibaca abyssi ’ as a species of the genus Salipiger .

Tsuneonella suprasediminis sp. nov., isolated from the Pacific Ocean

2019 ◽  
Vol 71 (3) ◽  
Author(s):  
Yan Gao ◽  
Guangyu Li ◽  
Chen Fang ◽  
Zongze Shao ◽  
Yue-Hong Wu ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Type Species ◽  
Sequence Similarity ◽  
Cellular Fatty Acid ◽  
Rrna Gene ◽  
Overlying Water ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type ◽  
Type Strains

A Gram-stain-negative, rod-shaped and aerobic bacterial strain, named Ery12T, was isolated from the overlying water of the Lau Basin in the Southwest Pacific Ocean. Strain Ery12T showed high 16S rRNA gene sequences similarity to Tsuneonella flava MS1-4T (99.9 %), T. mangrovi MCCC 1K03311T (98.1 %), Altererythrobacter ishigakiensis NBRC 107699T (97.3 %) and exhibited ≤97.0 % sequence similarity with other type strains of species with validly published names. Growth was observed in media with 0–10.0 % NaCl (optimum 0–1.0 %, w/v), pH 5.0–9.5 (optimum 6.0–7.0) and 10–42 °C (optimum 30–37 °C). The predominant respiratory quinone was ubiquinone 10 (Q-10). The major cellular fatty acid was summed feature 8 (C18 : 1  ω7c and/or C18 : 1  ω6c). The major polar lipids were sphingoglycolipid, phosphatidyglycerol, diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, three unidentified glycolipids, one unidentified aminoglycolipid and one unidentified lipid. The DNA G+C content was 60.8 %. The ANI and in silico DDH values between strain Ery12T and the type strains of its closely related species were 71.0- 91.8 % and 19.5- 44.6 %, respectively. According to the phenotypic, chemotaxonomic, phylogenetic and genomic data, strain Ery12T represents a novel species of the genus Tsuneonella , for which the name Tsuneonella suprasediminis is proposed. The type strain is Ery12T (=CGMCC 1.16500 T=MCCC 1A04421T=KCTC 62388T). We further propose to reclassify Altererythrobacter rhizovicinus and Altererythrobacter spongiae as Pelagerythrobacter rhizovicinus comb. nov. and Altericroceibacterium spongiae comb. nov., respectively.

Pseudomonas cyclaminis sp. nov., a pathogen causing bacterial bud blight of cyclamen in Japan

2019 ◽  
Vol 71 (3) ◽  
Author(s):  
Hiroyuki Sawada ◽  
Takashi Fujikawa ◽  
Shigeru Osada ◽  
Mamoru Satou
Keyword(s):  
Fatty Acids ◽  
Type Species ◽  
Sequence Similarity ◽  
Cellular Fatty Acid ◽  
Rrna Gene ◽  
Bacterial Strains ◽  
Gene Sequences ◽  
Content Type ◽  
Link Type ◽  
Total Fatty Acids

Five phytopathogenic bacterial strains, MAFF 301449T, MAFF 301450, MAFF 301451, MAFF 301452, and MAFF 301453, which were isolated from bud blight lesions of cyclamen (Cyclamen persicum Mill.) in Miyagi, Japan, were subjected to polyphasic taxonomic characterisation. The cells were Gram-reaction-negative, aerobic, non-spore-forming, motile with one to five polar flagella, and rod-shaped. Analysis of 16S rRNA gene sequences showed that they belong to the genus Pseudomonas , with Pseudomonas extremaustralis 14-3T (99.79 % sequence similarity), Pseudomonas trivialis DSM 14937T (99.79 %), Pseudomonas poae DSM 14936T (99.72 %), and Pseudomonas antarctica CMS 35T (99.72 %) as their relatives. The genomic DNA G+C content was 60.3 mol% and the major fatty acids (>5 % of the total fatty acids) were C16 : 0, summed feature 3 (C16 : 1 ω7c/C16 : 1 ω6c), summed feature 8 (C18 : 1 ω7c/C18 : 1 ω6c), and C17 : 0 cyclo. Phylogenetic analysis using the rpoD gene sequences and phylogenomic analyses based on the whole genome sequences demonstrated that the strains are members of the Pseudomonas fluorescens subgroup, but form a monophyletic and robust clade separated from their relatives. Average nucleotide identity and digital DNA–DNA hybridisation analyses with the closely related Pseudomonas species corroborated their novel species status. The strains were differentiated from their relatives by phenotypic characteristics, pathogenicity towards cyclamen, cellular fatty acid composition, and whole-cell MALDI-TOF mass spectrometry profiles. Based on the phenotypic, chemotaxonomic, and genotypic data obtained, we conclude that the strains represent a novel Pseudomonas species, for which we propose the name Pseudomonas cyclaminis sp. nov.; the type strain is MAFF 301449T (=ICMP 23720T).

scholarly journals Sphingomonas corticis sp. nov., and Sphingobacterium corticibacterium sp. nov., from bark canker

2020 ◽  
Vol 70 (11) ◽  
pp. 5627-5633 ◽  
Author(s):  
Yong Li ◽  
Shengkun Wang ◽  
Ju-pu Chang ◽  
Dan-ran Bian ◽  
Li-min Guo ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Type Strain ◽  
Type Species ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Bacterial Strains ◽  
Respiratory Quinone ◽  
Polar Lipid Profile ◽  
Content Type ◽  
Link Type

Two Gram-stain-negative, aerobic, non-motile bacterial strains, 36D10-4-7T and 30C10-4-7T, were isolated from bark canker tissue of Populus × euramericana, respectively. 16S rRNA gene sequence analysis revealed that strain 36D10-4-7T shows 98.0 % sequence similarity to Sphingomonas adhaesiva DSM 7418T, and strain 30C10-4-7T shows highest sequence similarity to Sphingobacterium arenae H-12T (95.6 %). Average nucleotide identity analysis indicates that strain 36D10-4-7T is a novel member different from recognized species in the genus Sphingomonas . The main fatty acids and respiratory quinone detected in strain 36D10-4-7T are C18 : 1  ω7c and/or C18 : 1  ω6c and Q-10, respectively. The polar lipids are diphosphatidylglycerol, phosphatidylcholine, phosphatidylglycerol, aminolipid, phosphatidylethanolamine, sphingoglycolipid, two uncharacterized phospholipids and two uncharacterized lipids. For strain 30C10-4-7T, the major fatty acids and menaquinone are iso-C15 : 0, C16 : 1  ω7c and/or C16 : 1  ω6c and iso-C17 : 0 3-OH and MK-7, respectively. The polar lipid profile includes phosphatidylethanolamine, phospholipids, two aminophospholipids and six unidentified lipids. Based on phenotypic and genotypic characteristics, these two strains represent two novel species within the genera Sphingomonas and Sphingobacterium . The name Sphingomonas corticis sp. nov. (type strain 36D10-4-7T=CFCC 13112T=KCTC 52799T) and Sphingobacterium corticibacterium sp. nov. (type strain 30C10-4-7T=CFCC 13069T=KCTC 52797T) are proposed.

Aurantimonas marina sp. nov., isolated from deep-sea sediment

2021 ◽  
Vol 71 (8) ◽  
Author(s):  
Lei Song ◽  
Hongcan Liu ◽  
Qinglei Sun ◽  
Xiuzhu Dong ◽  
Yuguang Zhou
Keyword(s):  
Deep Sea ◽  
Type Species ◽  
Sequence Similarity ◽  
Cellular Fatty Acid ◽  
Rrna Gene ◽  
Respiratory Quinone ◽  
Content Type ◽  
Deep Sea Sediment ◽  
Link Type ◽  
Aurantimonas Coralicida

A novel bacterial strain, designated SW136T, was isolated from a deep-sea sediment sample collected from the South China Sea. Cells were Gram-stain-negative, aerobic, catalase-positive and oxidase-positive. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain SW136T represented a novel member of the genus Aurantimonas , forming a distinct cluster with ‘ Aurantimonas litoralis ’, Aurantimonas coralicida and Aurantimonas manganoxydans (98.2, 98.1 and 97.9% sequence similarity, respectively). The predominant cellular fatty acid of strain SW136T was C18 : 1  ω7c. Strain SW136T contained ubiquinone-10 as the dominant respiratory quinone, and diphosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine and phosphatidylglycerol as the major polar lipids. The genomic DNA G+C content was 64.3 mol%. The average nucleotide identity and digital DNA–DNA hybridization values of strain SW136T with A. coralicida CGMCC 1.12222T and A. manganoxydans CGMCC 1.12225T were 78.8 and 78.6 % and 21.5 and 25.5 %, respectively. On the basis of phylogenetic inference and phenotypic characteristics, we propose that strain SW136T represents a novel species of the genus Aurantimonas , with the name Aurantimonas marina sp. nov. The type strain is SW136T (=CGMCC 1.17725T=KCTC 82366T).

scholarly journals Pseudomonas allii sp. nov., a pathogen causing soft rot of onion in Japan

2020 ◽  
Author(s):  
Hiroyuki Sawada ◽  
Takashi Fujikawa ◽  
Mizue Tsuji ◽  
Mamoru Satou
Keyword(s):  
Fatty Acids ◽  
Type Species ◽  
Soft Rot ◽  
Cellular Fatty Acid ◽  
Rrna Gene ◽  
Bacterial Strains ◽  
Content Type ◽  
Link Type ◽  
Total Fatty Acids ◽  
Phylogenomic Analyses

Six phytopathogenic bacterial strains, MAFF 301512, MAFF 301513, MAFF 301514T, MAFF 301515, MAFF 301516 and MAFF 301517, were isolated from soft rot lesions of onion (Allium cepa L.) in Japan. The cells were Gram-reaction-negative, aerobic, non-spore-forming, motile with one or two polar flagella and rod-shaped. Analysis of their 16S rRNA gene sequences showed that they belong to the genus Pseudomonas , with the highest similarities to Pseudomonas poae DSM 14936T (99.86 %), Pseudomonas simiae OLiT (99.85 %), Pseudomonas trivialis DSM 14937T (99.79 %) and Pseudomonas extremorientalis KMM 3447T (99.79 %). Their genomic DNA G+C content was 60.9 mol% and the major fatty acids (>5 % of the total fatty acids) present were C16 : 0, summed feature 3 (C16 : 1 ω7c/C16 : 1 ω6c), summed feature 8 (C18 : 1 ω7c /C18 : 1 ω6c) and C17 : 0 cyclo. Phylogenetic and phylogenomic analyses based on the rpoD gene and whole genome sequences, respectively, demonstrated that the strains belong to the Pseudomonas fluorescens subgroup, but form a monophyletic and robust clade, with Pseudomonas azotoformans as their neighbour. Between the strains and P. azotoformans , the average nucleotide identity scores were 95.63–95.70 %, whereas the digital DNA–DNA hybridization scores of the strains against their closest relatives, including P. azotoformans , were 65.4 % or less, which are lower than the 70 % cut-off for prokaryotic species delineation. The strains were differentiated from their closest relatives by phenotypic characteristics, pathogenicity in onion and cellular fatty acid composition. The phenotypic, chemotaxonomic and genotypic data showed that the strains represent a novel Pseudomonas species, proposed to be named Pseudomonas allii sp. nov., with MAFF 301514T (=ICMP 23680T) being the type strain.

scholarly journals Paenibacillus tibetensis sp. nov., a psychrophilic bacterium isolated from alpine swamp meadow soil

2015 ◽  
Vol 65 (Pt_5) ◽  
pp. 1583-1586 ◽  
Author(s):  
Li-Li Han ◽  
Ji-Zheng He ◽  
Yuan-Ming Zheng ◽  
Jun Zeng ◽  
Li-Mei Zhang
Keyword(s):  
Type Species ◽  
Cellular Fatty Acid ◽  
Diaminopimelic Acid ◽  
Phenotypic Characterization ◽  
Rrna Gene ◽  
Psychrophilic Bacterium ◽  
Meadow Soil ◽  
Closely Related Species ◽  
Content Type ◽  
Link Type

A novel psychrophilic strain, SSB001T, was isolated from an alpine swamp meadow soil in Tibet, China, and identified as a representative of a novel phylogenetic subclade in the genus Paenibacillus , with Paenibacillus antarcticus (96.2 %), Paenibacillus macquariensis (96.53 %) and Paenibacillus glacialis (96.2 %) as the most closely related species on the basis of 16S rRNA gene sequence analyses. The strain was distinguished from defined species of the genus Paenibacillus by further study of rpoB gene sequences, phenotypic characterization, cellular fatty acid composition, quinones, polar lipids and meso-diaminopimelic acid in the peptidoglycan. Based upon these results, we propose the strain as a representative of a novel species named Paenibacillus tibetensis sp. nov., with SSB001T ( = ACCC 19728T = DSM 29321T) as the type strain. The DNA G+C content (mol%) of strain SSB001T was 40.18 mol% (HPLC).

scholarly journals Actinokineospora soli sp. nov., a thermotolerant actinomycete isolated from soil, and emended description of the genus Actinokineospora

2012 ◽  
Vol 62 (Pt_8) ◽  
pp. 1845-1849 ◽  
Author(s):  
Xia Tang ◽  
Yu Zhou ◽  
Jing Zhang ◽  
Hong Ming ◽  
Guo-Xing Nie ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Genomic Dna ◽  
Type Strain ◽  
Type Species ◽  
Sequence Similarity ◽  
Diaminopimelic Acid ◽  
Rrna Gene ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type

A strain of thermotolerant actinomycete, designated YIM 75948T, was isolated from a soil sample in Yunnan province, China. The strain grew at 25–55 °C (optimum 37 °C). The substrate mycelium and aerial mycelium produced on Czapek’s agar were both pale yellow to white. The diagnostic diamino acid of the cell-wall peptidoglycan was meso-diaminopimelic acid, and the whole-cell sugars were mannose, ribose, glucose, galactose and arabinose. The major fatty acids were iso-C15 : 0, iso-C16 : 0 and C16 : 0 and the predominant respiratory quinone was MK-9(H4). The polar lipids consisted of phosphatidylethanolamine, phosphatidylethanolamine with hydroxy fatty acids, diphosphatidylglycerol, phosphatidylinositol and two unidentified phospholipids. The genomic DNA G+C content was 73.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain YIM 75948T belonged in the genus Actinokineospora and that its closest relative among recognized species was Actinokineospora fastidiosa DSM 43855T (97.6 % sequence similarity). The mean level of DNA–DNA relatedness between the novel strain and A. fastidiosa DSM 43855T was, however, only 47.8 %. Based on the phenotypic, chemotaxonomic and phylogenetic data and the results of the DNA–DNA hybridizations, strain YIM 75948T represents a novel species of the genus Actinokineospora for which the name Actinokineospora soli sp. nov. is proposed. The type strain is YIM 75948T ( = JCM 17695T = DSM 45613T). The description of the genus Actinokineospora is emended to reflect the fact that the genomic DNA G+C contents of A. fastidiosa DSM 43855T and the type strain of Actinokineospora soli sp. nov. recorded in the present study fell above the range given in previous descriptions of this genus.

Bradyrhizobium daqingense sp. nov., isolated from soybean nodules

2013 ◽  
Vol 63 (Pt_2) ◽  
pp. 616-624 ◽  
Author(s):  
Jing Yu Wang ◽  
Rui Wang ◽  
Yan Ming Zhang ◽  
Hong Can Liu ◽  
Wen Feng Chen ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Sequence Analysis ◽  
Related Species ◽  
Type Strain ◽  
Type Species ◽  
Root Nodules ◽  
Rrna Gene ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type

Thirteen slow-growing rhizobial strains isolated from root nodules of soybean (Glycine max L.) grown in Daqing city in China were classified in the genus Bradyrhizobium based on 16S rRNA gene sequence analysis. Multilocus sequence analysis of IGS, atpD, glnII and recA genes revealed that the isolates represented a novel clade in this genus. DNA–DNA relatedness lower than 42.5 % between the representative strain CCBAU 15774T and the type strains of the closely related species Bradyrhizobium liaoningense USDA 3622T, Bradyrhizobium yuanmingense CCBAU 10071T and Bradyrhizobium betae LMG 21987T, further confirmed that this group represented a novel species. CCBAU 15774T shared seven cellular fatty acids with the three above-mentioned species, but the fatty acids 15 : 0 iso and summed feature 5 (18 : 2ω6,9c and/or 18 : 0 anteiso) were unique for this strain. The respiratory quinone in CCBAU 15774T was ubiquinone-10 and the cellular polar lipids were phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, cardiolipin and unknown aminolipid, polar lipid and phospholipid. In addition, some phenotypic features could be used to differentiate the novel group from the related species. On basis of these results, we propose the name Bradyrhizobium daqingense sp. nov., with CCBAU 15774T ( = LMG 26137T = HAMBI 3184T = CGMCC 1.10947T) as the type strain. The DNA G+C content of the type strain is 61.2 mol% (T m).

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