Base de dados : MEDLINE
Pesquisa : B03.440.400.425.487 [Categoria DeCS]
Referências encontradas : 99 [refinar]
Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 10 ir para página                        

  1 / 99 MEDLINE  
              next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29458474
[Au] Autor:Ko Y; Yim J; Hwang WM; Kang K; Ahn TY
[Ad] Endereço:1​Department of Microbiology, College of Natural Sciences, Dankook University, Cheonan 31116, Republic of Korea.
[Ti] Título:Roseomonas fluminis sp. nov. isolated from sediment of a shallow stream.
[So] Source:Int J Syst Evol Microbiol;68(3):782-787, 2018 Mar.
[Is] ISSN:1466-5034
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:An aerobic, Gram-negative, motile by means of a single polar flagellum, and ovoid-shaped bacterium, designated D3 , was isolated from shallow stream sediments in Sinan-gun, South Korea. Growth occurred at 15-40 °C (optimum 35 °C), at pH 7.0-8.0 (optimum pH 7.0), and at an optimum NaCl concentration of 0.5 % (w/v). The major cellular fatty acids (>7 % of the total) were C16 : 0, C18 : 0 2-OH, summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c) and summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c). The predominant quinone was ubiquinone-10, and the G+C content of the genomic DNA of strain D3 was 73.1 mol%. The major polyamine was spermidine. The major polar lipids of the isolate were diphosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine and phosphatidylglycerol. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain D3 clustered with Roseomonas aquatica TR53 within the genus Roseomonas. The 16S rRNA gene sequence of strain D3 showed the highest sequence similarity to R. aquatica TR53 (95.9 %), followed by Roseomonas rosea 173-96 (95.7 %) and Roseomonas aerilata 5420S-30 (95.0 %). Based on the phenotypic, phylogenetic and chemotaxonomic characterization, strain D3 represents a novel species of the genus Roseomonas, for which the name Roseomonas fluminis sp. nov. is proposed. The type strain is D3 (=KACC 19269 =JCM 31968 ).
[Mh] Termos MeSH primário: Sedimentos Geológicos/microbiologia
Methylobacteriaceae/classificação
Filogenia
Rios/microbiologia
[Mh] Termos MeSH secundário: Técnicas de Tipagem Bacteriana
Composição de Bases
DNA Bacteriano/genética
Ácidos Graxos/química
Methylobacteriaceae/genética
Methylobacteriaceae/isolamento & purificação
Hibridização de Ácido Nucleico
Fosfatidilgliceróis/química
Fosfolipídeos/química
RNA Ribossômico 16S/genética
República da Coreia
Análise de Sequência de DNA
Ubiquinona/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial); 0 (Fatty Acids); 0 (Phosphatidylglycerols); 0 (Phospholipids); 0 (RNA, Ribosomal, 16S); 1339-63-5 (Ubiquinone); I7T5V2W47R (Ubiquinone Q2)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180221
[St] Status:MEDLINE
[do] DOI:10.1099/ijsem.0.002578


  2 / 99 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29388546
[Au] Autor:Subhash Y; Lee SS
[Ad] Endereço:Department of Life Science, College of Natural Science, Kyonggi University, 154-42 Gwanggyosan-ro Yeongtong-gu Suwon-Si, Gyeonggi-Do, 16227, Republic of Korea.
[Ti] Título:Roseomonas deserti sp. nov., isolated from crude oil contaminated desert sand.
[So] Source:Int J Syst Evol Microbiol;68(2):675-680, 2018 Feb.
[Is] ISSN:1466-5034
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Two dark pink pigmented bacterial strains (M3 and M11) were isolated from crude oil contaminated desert sand from Kuwait. Both strains were Gram-stain-negative and small-rod to oval-shaped bacteria. Strains M3 and M11 grew at 13-42 °C (optimum, 30-35 °C) and pH 6.5-9.0 (optimum, 7.0-7.5). No additional NaCl was required for the growth of both strains. The genomic DNA G+C content of strains M3 and M11 were 69.5 and 69.0 mol%, respectively. Both strains were closely related and the mean DNA-DNA hybridization value was 92±1 %. 16S rRNA gene sequence comparisons of both strains indicated that they belong to the genus Roseomonas. Strains M3 and M11 had a sequence similarity of 97.3 and 97.4 % with Roseomonas oryzae JC288 , respectively. Both strains had <97 % 16S rRNA gene sequence similarity with other members of the genus Roseomonas. Strain M3 showed 18±2 and 13±2 % reassociation (based on DNA-DNA hybridization) with R. oryzae KCTC 42542 and Roseomonas cervicalis KACC 11686 , respectively. The major cellular fatty acids (>5 %) were identified as C18 : 1ω6c/C18 : 1ω7c, C16 : 1ω6c/C16 : 1ω7c and C16 : 0 in both strains. Both strains showed diphosphatidylglycerol, phosphatidylglycerol, phosphatidyl-ethanolamine, phosphatidylcholine and unidentified glycolipid as major polar lipids. Based on distinct phenotypic, genotypic and phylogenetic differences from the previously described taxa, we propose the classification of strains M3 and M11 as representative of a novel species in the genus Roseomonas, for which the name Roseomonas deserti sp. nov. is suggested. The type strain is M3 (=KEMB 2255-459 =JCM 31275 ).
[Mh] Termos MeSH primário: Clima Desértico
Methylobacteriaceae/classificação
Petróleo/microbiologia
Filogenia
[Mh] Termos MeSH secundário: Técnicas de Tipagem Bacteriana
Composição de Bases
DNA Bacteriano/genética
Ácidos Graxos/química
Glicolipídeos/química
Kuweit
Methylobacteriaceae/genética
Methylobacteriaceae/isolamento & purificação
Hibridização de Ácido Nucleico
Fosfolipídeos/química
Pigmentação
RNA Ribossômico 16S/genética
Análise de Sequência de DNA
Dióxido de Silício
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial); 0 (Fatty Acids); 0 (Glycolipids); 0 (Petroleum); 0 (Phospholipids); 0 (RNA, Ribosomal, 16S); 7631-86-9 (Silicon Dioxide)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180202
[St] Status:MEDLINE
[do] DOI:10.1099/ijsem.0.002565


  3 / 99 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29223156
[Au] Autor:But SY; Egorova SV; Khmelenina VN; Trotsenko YA
[Ad] Endereço:Skryabin Institute of Biochemistry and Physiology of Microorganisms, Laboratory of Methylotrophy, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia. flash20063@rambler.ru.
[Ti] Título:Biochemical Properties and Phylogeny of Hydroxypyruvate Reductases from Methanotrophic Bacteria with Different C -Assimilation Pathways.
[So] Source:Biochemistry (Mosc);82(11):1295-1303, 2017 Nov.
[Is] ISSN:1608-3040
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In the aerobic methanotrophic bacteria Methylomicrobium alcaliphilum 20Z, Methylococcus capsulatus Bath, and Methylosinus trichosporium OB3b, the biochemical properties of hydroxypyruvate reductase (Hpr), an indicator enzyme of the serine pathway for assimilation of reduced C -compounds, were comparatively analyzed. The recombinant Hpr obtained by cloning and heterologous expression of the hpr gene in Escherichia coli catalyzed NAD(P)H-dependent reduction of hydroxypyruvate or glyoxylate, but did not catalyze the reverse reactions of D-glycerate or glycolate oxidation. The absence of the glycerate dehydrogenase activity in the methanotrophic Hpr confirmed a key role of the enzyme in utilization of C -compounds via the serine cycle. The enzyme from Ms. trichosporium OB3b realizing the serine cycle as a sole assimilation pathway had much higher special activity and affinity in comparison to Hpr from Mm. alcaliphilum 20Z and Mc. capsulatus Bath assimilating carbon predominantly via the ribulose monophosphate (RuMP) cycle. The hpr gene was found as part of gene clusters coding the serine cycle enzymes in all sequenced methanotrophic genomes except the representatives of the Verrucomicrobia phylum. Phylogenetic analyses revealed two types of Hpr: (i) Hpr of methanotrophs belonging to the Gammaproteobacteria class, which use the serine cycle along with the RuMP cycle, as well as of non-methylotrophic bacteria belonging to the Alphaproteobacteria class; (ii) Hpr of methylotrophs from Alpha- and Betaproteobacteria classes that use only the serine cycle and of non-methylotrophic representatives of Betaproteobacteria. The putative role and origin of hydroxypyruvate reductase in methanotrophs are discussed.
[Mh] Termos MeSH primário: Hidroxipiruvato Redutase/classificação
Methylococcaceae/enzimologia
Methylosinus/enzimologia
Filogenia
[Mh] Termos MeSH secundário: Alphaproteobacteria
Gammaproteobacteria
Bactérias Aeróbias Gram-Negativas/classificação
Bactérias Aeróbias Gram-Negativas/enzimologia
Hidroxipiruvato Redutase/metabolismo
Methylobacillus
Methylobacteriaceae
Methylophilaceae
Serina/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
452VLY9402 (Serine); EC 1.1.1.81 (Hydroxypyruvate Reductase)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180103
[Lr] Data última revisão:
180103
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171211
[St] Status:MEDLINE
[do] DOI:10.1134/S0006297917110074


  4 / 99 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28933323
[Au] Autor:Oren A
[Ad] Endereço:The Institute of Life Sciences, The Hebrew University of Jerusalem, The Edmond J. Safra Campus, 91904 Jerusalem, Israel.
[Ti] Título:On names of genera of prokaryotes that are later homonyms of generic names with standing in the zoological or the botanical nomenclature. Proposal of Neomegalonema gen. nov. and Neomegalonema perideroedes comb. nov. as replacements for the prokaryotic generic name Meganema and the species name Meganema perideroedes.
[So] Source:Int J Syst Evol Microbiol;67(10):4276-4278, 2017 Oct.
[Is] ISSN:1466-5034
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:I here present a survey of generic names with standing in the prokaryotic nomenclature that have homonyms with standing under the International Code of Zoological Nomenclature and/or the International Code of Nomenclature for algae, fungi, and plants. I especially discuss such names added after Principle 2 of the Bacteriological Code/Prokaryotic Code was changed in 1999 to make the prokaryote nomenclature not independent of botanical and zoological nomenclature. Cases include the genera Micromonas, Quadrococcus, Yania, Sinococcus, and Meganema. The generic name Meganema was not previously recognized as a homonym of two genera with standing in the zoological nomenclature. Therefore, I here propose renaming Meganema and Meganema perideroedes as Neomegalonema gen. nov. and Neomegalonema perideroedes comb. nov., respectively.
[Mh] Termos MeSH primário: Methylobacteriaceae/classificação
Terminologia como Assunto
[Mh] Termos MeSH secundário: Fungos/classificação
Plantas/classificação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171106
[Lr] Data última revisão:
171106
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170922
[St] Status:MEDLINE
[do] DOI:10.1099/ijsem.0.002349


  5 / 99 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28905700
[Au] Autor:Hyeon JW; Jeon CO
[Ad] Endereço:Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea.
[Ti] Título:Roseomonas aerofrigidensis sp. nov., isolated from an air conditioner.
[So] Source:Int J Syst Evol Microbiol;67(10):4039-4044, 2017 Oct.
[Is] ISSN:1466-5034
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A Gram-stain-negative, strictly aerobic bacterium, designated HC1 , was isolated from an air conditioner in South Korea. Cells were orange, non-motile cocci with oxidase- and catalase-positive activities and did not contain bacteriochlorophyll a. Growth of strain HC1 was observed at 10-45 °C (optimum, 30 °C), pH 4.5-9.5 (optimum, pH 7.0) and 0-3 % (w/v) NaCl (optimum, 0 %). Strain HC1 contained summed feature 8 (comprising C18 : 1ω7c/C18 : 1ω6c), C16 : 0 and cyclo-C19 : 0ω8c as the major fatty acids and ubiquinone-10 as the sole isoprenoid quinone. Phosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine and an unknown aminolipid were detected as the major polar lipids. The major carotenoid was hydroxyspirilloxanthin. The G+C content of the genomic DNA was 70.1 mol%. Phylogenetic analysis, based on 16S rRNA gene sequences, showed that strain HC1 formed a phylogenetic lineage within the genus Roseomonas. Strain HC1 was most closely related to the type strains of Roseomonas oryzae, Roseomonas rubra, Roseomonas aestuarii and Roseomonas rhizosphaerae with 98.1, 97.9, 97.6 and 96.8 % 16S rRNA gene sequence similarities, respectively, but the DNA-DNA relatedness values between strain HC1 and closely related type strains were less than 70 %. Based on phenotypic, chemotaxonomic and molecular properties, strain HC1 represents a novel species of the genus Roseomonas, for which the name Roseomonas aerofrigidensis sp. nov. is proposed. The type strain is HC1 (=KACC 19097 =JCM 31878 ).
[Mh] Termos MeSH primário: Ar Condicionado
Methylobacteriaceae/classificação
Filogenia
[Mh] Termos MeSH secundário: Técnicas de Tipagem Bacteriana
Composição de Bases
Carotenoides/química
DNA Bacteriano/genética
Ácidos Graxos/química
Methylobacteriaceae/genética
Methylobacteriaceae/isolamento & purificação
Hibridização de Ácido Nucleico
Fosfatidilcolinas/química
Fosfatidiletanolaminas/química
Fosfatidilgliceróis/química
RNA Ribossômico 16S/genética
República da Coreia
Análise de Sequência de DNA
Ubiquinona/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial); 0 (Fatty Acids); 0 (Phosphatidylcholines); 0 (Phosphatidylethanolamines); 0 (Phosphatidylglycerols); 0 (RNA, Ribosomal, 16S); 1339-63-5 (Ubiquinone); 36-88-4 (Carotenoids); 39382-08-6 (phosphatidylethanolamine); I7T5V2W47R (Ubiquinone Q2)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171101
[Lr] Data última revisão:
171101
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170915
[St] Status:MEDLINE
[do] DOI:10.1099/ijsem.0.002246


  6 / 99 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28867001
[Au] Autor:Tapase SR; Mawlankar RB; Sundharam SS; Krishnamurthi S; Dastager SG; Kodam KM
[Ad] Endereço:1​Division of Biochemistry, Department of Chemistry, Savitribai Phule Pune University, Pune-411007, Maharashtra, India.
[Ti] Título:Microvirga indica sp. nov., an arsenite-oxidizing Alphaproteobacterium, isolated from metal industry waste soil.
[So] Source:Int J Syst Evol Microbiol;67(9):3525-3531, 2017 Sep.
[Is] ISSN:1466-5034
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A novel Gram-stain-negative bacterium, strain S-MI1bT, belonging to the genus Microvirga was isolated from a metal industry waste soil sample in Pirangut village, Pune District, Maharashtra, India. Cells were non-spore-forming, small rod-shapes, motile and strictly aerobic with light-pink colonies. The strain grew in 0-7.0 % (w/v) NaCl and at 25-45 °C, with optimal growth at 40 °C. The predominant fatty acids detected were summed feature 8 (C18 : 1 ω7c and/or C18 : 1 ω6c) and C19 : 0 cyclo ω8c. The predominant isoprenoid quinone was Q-10. The G+C content was 67.2 mol% and DNA-DNA relatedness values between strain S-MI1bTand Microvirga subterranea DSM 14364T and Microvirgaaerophila 5420S-12T were 53.9 and 54.8 %, respectively. Phylogenetic analysis, based on 16S rRNA gene sequences, indicated that strain S-MI1bT is a member of the genus Microvirga, with greatest sequence similarities of 97.7 and 97.4 % with M. subterranea DSM 14364T and M.aerophila 5420S-12T, respectively. Phylogenetic analysis showed that strain S-MI1bT forms a clade with the type strain of M. subterranea DSM 14364T, and was readily distinguishable from it due to various phenotypic characteristics. The combination of genotypic and phenotypic data suggests that the isolate represents a novel species of the genus Microvirga, for which the name Microvirga indica sp. nov. is proposed. The type strain is S-MI1bT (=NCIM-5595T=KACC 18792T=BCRC 80972T).
[Mh] Termos MeSH primário: Arsenitos/metabolismo
Resíduos Industriais
Methylobacteriaceae/classificação
Filogenia
Microbiologia do Solo
[Mh] Termos MeSH secundário: Técnicas de Tipagem Bacteriana
Composição de Bases
DNA Bacteriano/genética
Ácidos Graxos/química
Índia
Metais
Methylobacteriaceae/genética
Methylobacteriaceae/isolamento & purificação
Hibridização de Ácido Nucleico
RNA Ribossômico 16S/genética
Análise de Sequência de DNA
Poluentes do Solo/metabolismo
Ubiquinona/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Arsenites); 0 (DNA, Bacterial); 0 (Fatty Acids); 0 (Industrial Waste); 0 (Metals); 0 (RNA, Ribosomal, 16S); 0 (Soil Pollutants); 1339-63-5 (Ubiquinone); I7T5V2W47R (Ubiquinone Q2); N5509X556J (arsenite)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170920
[Lr] Data última revisão:
170920
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170905
[St] Status:MEDLINE
[do] DOI:10.1099/ijsem.0.002157


  7 / 99 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28820105
[Au] Autor:Yan ZF; Lin P; Li CT; Kook M; Wang QJ; Yi TH
[Ad] Endereço:1​Department of Oriental Medicinal Material and Processing, College of Life Science, Kyung Hee University Global Campus, 1732 Deokyoungdae-ro, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea.
[Ti] Título:Roseomonas hibiscisoli sp. nov., isolated from the rhizosphere of Mugunghwa (Hibiscus syriacus).
[So] Source:Int J Syst Evol Microbiol;67(8):2873-2878, 2017 Aug.
[Is] ISSN:1466-5034
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A Gram-stain-negative, aerobic, non-motile and coccoid to short-rod-shaped bacterial strain (THG-N2.22T) was isolated from the rhizosphere of Mugunghwa (Hibiscus syriacus). Growth occurred at 20-40 °C (optimum 28 °C), at pH 5-9 (optimum 7) and with 0-4 % (w/v) NaCl (optimum 1 %). Based on 16S rRNA gene sequence analysis, the nearest phylogenetic neighbours of strain THG-N2.22T were identified as Roseomonas rhizosphaerae YW11T (98.5 % similarity), Roseomonas rubra S5T (98.5 %), Roseomonas cervicalis ATCC 49957T (98.2 %), Roseomonas aestuarii JC17T (97.8 %), Roseomonas oryzae JC288T (97.3 %) and Roseomonas ludipueritiae 170/96T (97.3 %); levels of similarity with the type strains of other Roseomonas species were lower than 97.0 %. The polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, two unidentified aminolipids, three unidentified phospholipids and three unidentified lipids. The major quinone was ubiquinone-10. The major fatty acids were C16 : 0, C18 : 1 2-OH, C18 : 1ω7c and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c). The DNA G+C content of strain THG-N2.22T was 64.1 mol%. DNA-DNA hybridization values between strain THG-N2.22T and R. rhizosphaerae YW11T, R. rubra S5T, R. cervicalis ATCC 49957T, R. aestuarii JC17T, R. oryzae JC288T and R. ludipueritiae 170/96T were 43.1 % (30.2 %, reciprocal analysis), 39.0 % (24.7 %), 34.4 % (15.2 %), 18.0 % (14.5 %), 14.7 % (9.7 %) and 11.0 % (5.6 %), respectively. On the basis of the phylogenetic analysis, chemotaxonomic data, physiological characteristics and DNA-DNA hybridization data, strain THG-N2.22T represents a novel species of the genus Roseomonas, for which the name Roseomonas hibiscisoli sp. nov. is proposed. The type strain is THG-N2.22T (=KACC 18935T=CCTCC AB 2016176T).
[Mh] Termos MeSH primário: Hibiscus/microbiologia
Methylobacteriaceae/classificação
Filogenia
Rizosfera
Microbiologia do Solo
[Mh] Termos MeSH secundário: Técnicas de Tipagem Bacteriana
Composição de Bases
DNA Bacteriano/genética
Ácidos Graxos/química
Methylobacteriaceae/genética
Methylobacteriaceae/isolamento & purificação
Hibridização de Ácido Nucleico
Fosfolipídeos/química
RNA Ribossômico 16S/genética
República da Coreia
Análise de Sequência de DNA
Ubiquinona/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial); 0 (Fatty Acids); 0 (Phospholipids); 0 (RNA, Ribosomal, 16S); 1339-63-5 (Ubiquinone); I7T5V2W47R (Ubiquinone Q2)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170918
[Lr] Data última revisão:
170918
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170819
[St] Status:MEDLINE
[do] DOI:10.1099/ijsem.0.002036


  8 / 99 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28714843
[Au] Autor:Subhash Y; Lee SS
[Ad] Endereço:Department of Life Science, College of Natural Science, Kyonggi University, 154-42 Gwanggyosan-ro Yeongtong-gu Suwon-Si, Gyeonggi-Do 16227, Republic of Korea.
[Ti] Título:Roseomonas suffusca sp. nov., isolated from lagoon sediments.
[So] Source:Int J Syst Evol Microbiol;67(7):2390-2396, 2017 Jul.
[Is] ISSN:1466-5034
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Three light-brown-coloured, Gram-stain-negative, small rod- to oval-shaped, motile bacteria were isolated from lagoon sediments collected from North Carolina, USA. The strains (S1T, AS3 and AS6) grew aerobically at 13-42 °C (optimum, 30-35 °C) and pH 6.5-9.1 (optimum, pH 7.0-7.5). All three strains were positive for catalase and oxidase activity, and no added NaCl was required for growth. C18 : 1ω6c/C18 : 1ω7c, C16 : 1ω6c/C16 : 1ω7c, C18 : 1ω7c 11-methyl and C16 : 0 were the predominant fatty acids (>5 %). Diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine and an unidentified glycolipid were the major polar lipids. The genomic DNA G+C content of strains S1T, AS3 and AS6 was 70.5, 70.1 and 70.8 mol%, respectively. Strain S1T showed 16S rRNA gene sequence similarity of 99.1 % with Roseomonas rubra S5T, 98.7 % with Roseomonas rhizosphaerae YW11T, 98.5 % with Roseomonas cervicalis E7107T, 97.8 % with Roseomonas aestuarii JC17T, 97.2 % with Roseomonas oryzae JC288T, 97.2 % with Roseomonas ludipueritiae 170/96Tand <97 % with other members of the genus Roseomonas. Strains AS3 and AS6 shared 99.9 % 16S rRNA gene sequence similarity with strain S1T. DNA-DNA hybridization values among strains S1T, AS3 and AS6 were >89 %, while all the three strains showed <56 % relatedness with the most closely related type strains. Distinct phenotypic, genotypic and phylogenetic differences from the previously described taxa support the classification of strain S1T as a representative of a novel species in the genus Roseomonas, for which the name Roseomonas suffusca sp. nov. is proposed. The type strain is S1T (=KEMB 563-465T=JCM 31176T). Strains AS3 and AS6 serve as additional strains of the newly proposed species.
[Mh] Termos MeSH primário: Sedimentos Geológicos/microbiologia
Methylobacteriaceae/classificação
Filogenia
Microbiologia da Água
[Mh] Termos MeSH secundário: Técnicas de Tipagem Bacteriana
DNA Bacteriano/genética
Ácidos Graxos/química
Methylobacteriaceae/genética
Methylobacteriaceae/isolamento & purificação
North Carolina
Hibridização de Ácido Nucleico
Fosfolipídeos/química
RNA Ribossômico 16S/genética
Análise de Sequência de DNA
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial); 0 (Fatty Acids); 0 (Phospholipids); 0 (RNA, Ribosomal, 16S)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170908
[Lr] Data última revisão:
170908
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170718
[St] Status:MEDLINE
[do] DOI:10.1099/ijsem.0.001966


  9 / 99 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Rey, Luís
Texto completo
[PMID]:28505340
[Au] Autor:Msaddak A; Rejili M; Durán D; Rey L; Imperial J; Palacios JM; Ruiz-Argüeso T; Mars M
[Ad] Endereço:Research Unit Biodiversity and Valorization of Arid Areas Bioresources (BVBAA)-Faculty of Sciences of Gabès, Erriadh, Zrig 6072, Tunisia.
[Ti] Título:Members of Microvirga and Bradyrhizobium genera are native endosymbiotic bacteria nodulating Lupinus luteus in Northern Tunisian soils.
[So] Source:FEMS Microbiol Ecol;93(6), 2017 Jun 01.
[Is] ISSN:1574-6941
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The genetic diversity of bacterial populations nodulating Lupinus luteus (yellow lupine) in Northern Tunisia was examined. Phylogenetic analyses of 43 isolates based on recA and gyrB partial sequences grouped them in three clusters, two of which belong to genus Bradyrhizobium (41 isolates) and one, remarkably, to Microvirga (2 isolates), a genus never previously described as microsymbiont of this lupine species. Representatives of the three clusters were analysed in-depth by multilocus sequence analysis of five housekeeping genes (rrs, recA, glnII, gyrB and dnaK). Surprisingly, the Bradyrhizobium cluster with the two isolates LluI4 and LluTb2 may constitute a new species defined by a separate position between Bradyrhizobium manausense and B. denitrificans. A nodC-based phylogeny identified only two groups: one formed by Bradyrhizobium strains included in the symbiovar genistearum and the other by the Microvirga strains. Symbiotic behaviour of representative isolates was tested, and among the seven legumes inoculated only a difference was observed i.e. the Bradyrhizobium strains nodulated Ornithopus compressus unlike the two strains of Microvirga. On the basis of these data, we conclude that L. luteus root nodule symbionts in Northern Tunisia are mostly strains within the B. canariense/B. lupini lineages, and the remaining strains belong to two groups not previously identified as L. luteus endosymbionts: one corresponding to a new clade of Bradyrhizobium and the other to the genus Microvirga.
[Mh] Termos MeSH primário: Bradyrhizobium/genética
Lupinus/microbiologia
Methylobacteriaceae/genética
Nódulos Radiculares de Plantas/microbiologia
Simbiose/fisiologia
[Mh] Termos MeSH secundário: Proteínas de Bactérias/genética
Bradyrhizobium/classificação
Bradyrhizobium/isolamento & purificação
DNA Girase/genética
DNA Bacteriano/genética
Genes Essenciais/genética
Methylobacteriaceae/classificação
Methylobacteriaceae/isolamento & purificação
Tipagem de Sequências Multilocus
Filogenia
Recombinases Rec A/genética
Análise de Sequência de DNA
Solo
Microbiologia do Solo
Simbiose/genética
Tunísia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bacterial Proteins); 0 (DNA, Bacterial); 0 (NodD protein, Bacteria); 0 (Soil); EC 2.7.7.- (Rec A Recombinases); EC 5.99.1.3 (DNA Gyrase)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170516
[St] Status:MEDLINE
[do] DOI:10.1093/femsec/fix068


  10 / 99 MEDLINE  
              first record previous record
seleciona
para imprimir
Fotocópia
Rey, Luís
Texto completo
[PMID]:28062461
[Au] Autor:Msaddak A; Durán D; Rejili M; Mars M; Ruiz-Argüeso T; Imperial J; Palacios J; Rey L
[Ad] Endereço:Research Unit Biodiversity and Valorization of Arid Areas Bioresources (BVBAA), Faculty of Sciences of Gabès Erriadh, Zrig,Tunisia.
[Ti] Título:Diverse Bacteria Affiliated with the Genera Microvirga, Phyllobacterium, and Bradyrhizobium Nodulate Lupinus micranthus Growing in Soils of Northern Tunisia.
[So] Source:Appl Environ Microbiol;83(6), 2017 Mar 15.
[Is] ISSN:1098-5336
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The genetic diversity of bacterial populations nodulating in five geographical sites from northern Tunisia was examined. Phylogenetic analyses of 50 isolates based on partial sequences of and grouped strains into seven clusters, five of which belong to the genus (28 isolates), one to (2 isolates), and one, remarkably, to (20 isolates). The largest cluster (17 isolates) grouped with the species, and the other five clusters were close to different recently defined species. Isolates close to were obtained from nodules of plants from four of the five sites sampled. We carried out an in-depth phylogenetic study with representatives of the seven clusters using sequences from housekeeping genes ( , , , , and ) and obtained consistent results. A phylogeny based on the sequence of the symbiotic gene identified four groups, three formed by isolates and one by the and isolates. Symbiotic behaviors of the representative strains were tested, and some congruence between symbiovars and symbiotic performance was observed. These data indicate a remarkable diversity of root nodule symbionts in northern Tunisia, including strains from the , , and families, in contrast with those of the rhizobial populations nodulating lupines in the Old World, including from other Mediterranean areas, which are nodulated mostly by strains. is a legume broadly distributed in the Mediterranean region and plays an important role in soil fertility and vegetation coverage by fixing nitrogen and solubilizing phosphate in semiarid areas. Direct sowing to extend the distribution of this indigenous legume can contribute to the prevention of soil erosion in pre-Saharan lands of Tunisia. However, rhizobial populations associated with are poorly understood. In this context, the diversity of endosymbionts of this legume was investigated. Most species are nodulated by strains. This work showed that about half of the isolates from northern Tunisian soils were in fact symbionts, but the other half were found unexpectedly to be bacteria within the genera and These unusual endosymbionts may have a great ecological relevance. Inoculation with the appropriate selected symbiotic bacterial partners will increase survival with consequent advantages for the environment in semiarid areas of Tunisia.
[Mh] Termos MeSH primário: Bradyrhizobium/isolamento & purificação
Lupinus/microbiologia
Methylobacteriaceae/isolamento & purificação
Phyllobacteriaceae/isolamento & purificação
Nódulos Radiculares de Plantas/microbiologia
[Mh] Termos MeSH secundário: Biodiversidade
Bradyrhizobium/classificação
Bradyrhizobium/genética
DNA Girase/genética
DNA Bacteriano/genética
Genes Essenciais/genética
Methylobacteriaceae/classificação
Methylobacteriaceae/genética
Phyllobacteriaceae/classificação
Phyllobacteriaceae/genética
Filogenia
Nodulação/fisiologia
RNA Ribossômico 16S/genética
Recombinases Rec A/genética
Microbiologia do Solo
Simbiose/fisiologia
Tunísia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial); 0 (RNA, Ribosomal, 16S); EC 2.7.7.- (Rec A Recombinases); EC 5.99.1.3 (DNA Gyrase)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171109
[Lr] Data última revisão:
171109
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170108
[St] Status:MEDLINE



página 1 de 10 ir para página                        
   


Refinar a pesquisa
  Base de dados : MEDLINE Formulário avançado   

    Pesquisar no campo  
1  
2
3
 
           



Search engine: iAH v2.6 powered by WWWISIS

BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde