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[PMID]:28743765
[Au] Autor:Kurmanbayeva A; Bekturova A; Srivastava S; Soltabayeva A; Asatryan A; Ventura Y; Khan MS; Salazar O; Fedoroff N; Sagi M
[Ad] Endereço:Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990, Israel.
[Ti] Título:Higher Novel L-Cys Degradation Activity Results in Lower Organic-S and Biomass in than the Related Saltwort, .
[So] Source:Plant Physiol;175(1):272-289, 2017 Sep.
[Is] ISSN:1532-2548
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:and are almost identical halophytes whose edible succulent shoots hold promise for commercial production in saline water. Enhanced sulfur nutrition may be beneficial to crops naturally grown on high sulfate. However, little is known about sulfate nutrition in halophytes. Here we show that (ecotype RN) exhibits a significant increase in biomass and organic-S accumulation in response to supplemental sulfate, whereas (ecotype VM) does not, instead exhibiting increased sulfate accumulation. We investigated the role of two pathways on organic-S and biomass accumulation in and : the sulfate reductive pathway that generates Cys and l-Cys desulfhydrase that degrades Cys to H S, NH , and pyruvate. The major function of -acetyl-Ser-(thiol) lyase (OAS-TL; EC 2.5.1.47) is the formation of l-Cys, but our study shows that the OAS-TL A and OAS-TL B of both halophytes are enzymes that also degrade l-Cys to H S. This activity was significantly higher in than in , especially upon sulfate supplementation. The activity of the sulfate reductive pathway key enzyme, adenosine 5'-phosphosulfate reductase (APR, EC 1.8.99.2), was significantly higher in than in These results suggest that the low organic-S level in is the result of high l-Cys degradation rate by OAS-TLs, whereas the greater organic-S and biomass accumulation in is the result of higher APR activity and low l-Cys degradation rate, resulting in higher net Cys biosynthesis. These results present an initial road map for halophyte growers to attain better growth rates and nutritional value of and .
[Mh] Termos MeSH primário: Amaranthaceae/metabolismo
Chenopodiaceae/metabolismo
Cisteína/metabolismo
Proteínas de Plantas/metabolismo
Salsola/metabolismo
Enxofre/metabolismo
[Mh] Termos MeSH secundário: Amaranthaceae/efeitos dos fármacos
Biomassa
Chenopodiaceae/efeitos dos fármacos
Cisteína Sintase/metabolismo
Oxirredutases atuantes sobre Doadores de Grupo Enxofre/metabolismo
Salinidade
Salsola/efeitos dos fármacos
Plantas Tolerantes a Sal
Sódio/farmacologia
Sulfatos/farmacologia
Compostos de Sulfidrila/metabolismo
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Proteins); 0 (Sulfates); 0 (Sulfhydryl Compounds); 70FD1KFU70 (Sulfur); 9NEZ333N27 (Sodium); EC 1.8.- (Oxidoreductases Acting on Sulfur Group Donors); EC 1.8.99.2 (adenylylsulfate reductase); EC 2.5.1.47 (Cysteine Synthase); K848JZ4886 (Cysteine)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180226
[Lr] Data última revisão:
180226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170727
[St] Status:MEDLINE
[do] DOI:10.1104/pp.17.00780


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[PMID]:29175605
[Au] Autor:Yadav S; Mishra A; Jha B
[Ad] Endereço:Marine Biotechnology and Ecology Division, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, (Gujarat), India. Electronic address: sonamyadav@csmcri.org.
[Ti] Título:Elevated CO leads to carbon sequestration by modulating C photosynthesis pathway enzyme (PPDK) in Suaeda monoica and S. fruticosa.
[So] Source:J Photochem Photobiol B;178:310-315, 2018 Jan.
[Is] ISSN:1873-2682
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:The C halophytic species Suaeda monoica and S. fruticosa, possess the C photosynthesis pathway without Kranz anatomy were grown at ambient (470ppm CO ) and elevated (850ppm CO ) atmospheric CO under control containment facility to study the plant response under CO stress condition. The relative growth of both Suaeda species was enhanced with atmospheric CO enrichment compared to control (ambient) condition. The photosynthesis rate was found 2.5µmolCO m s in both species under stress condition compared to about 1.9µmolCO m s under control conditions. About 0.3molH Om s conductance was detected under an unstressed condition which decreased significantly to ~0.07molH Om s on the 6th day of stress treatment. Similarly, transpiration rate was also decreased significantly from 4.4-5.2mmolH Om s to 1.7-1.9 under stress condition. In contrast, VpdL increased significantly from 1.9kPa to 2.5kPa under stress condition. A higher total chlorophyll content observed in S. monoica (56.36mgg tissue) compared to S. fruticosa (33.12mgg tissue) under unstressed (control) condition. A significant increase was found in the total chlorophyll content of S. fruticosa (45.47mgg tissue) with stress treatment compared to control (33.12mgg tissue). In contrast, the total chlorophyll decreased in S. monoica (51.58mgg tissue) under similar stress condition compared to control plants (56.36mgg tissue). About 6-6.8mg total sugar per gram tissue found under control condition which enhanced further (7.5 to 11mgg tissue) under stress condition. Similarly, total reducing sugar (~2mgg tissue) and total starch content (6.5-11mgg tissue) increased under stress condition. About 6.5- and 3- fold higher expression of PPDK gene was observed for S. monoica and S. fruticosa, respectively under CO stress condition. PPDK (1.2- and 1.5- fold) and antioxidant enzymes; APX (12.7- and two-fold), CAT (2.2- and 6.4- fold) and SOD (4.6- and 94- fold) enhanced significantly in S. fruticosa and S. monoica, respectively under high CO stress condition compared to control plants. Overall, it was observed that PPDK enzyme plays a key role in C photosynthesis pathway and S. monoica is a potential candidate to be explored further for the saline agricultural and CO capture.
[Mh] Termos MeSH primário: Dióxido de Carbono/metabolismo
Chenopodiaceae/metabolismo
Proteínas de Plantas/metabolismo
Piruvato Ortofosfato Diquinase/metabolismo
[Mh] Termos MeSH secundário: Ascorbato Peroxidases/genética
Ascorbato Peroxidases/metabolismo
Sequestro de Carbono
Catalase/genética
Catalase/metabolismo
Chenopodiaceae/crescimento & desenvolvimento
Clorofila/metabolismo
Fotossíntese
Folhas de Planta/metabolismo
Proteínas de Plantas/genética
Piruvato Ortofosfato Diquinase/genética
Amido/metabolismo
Açúcares/metabolismo
Superóxido Dismutase/genética
Superóxido Dismutase/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Proteins); 0 (Sugars); 1406-65-1 (Chlorophyll); 142M471B3J (Carbon Dioxide); 9005-25-8 (Starch); EC 1.11.1.11 (Ascorbate Peroxidases); EC 1.11.1.6 (Catalase); EC 1.15.1.1 (Superoxide Dismutase); EC 2.7.9.1 (Pyruvate, Orthophosphate Dikinase)
[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:171128
[St] Status:MEDLINE


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[PMID]:29292193
[Au] Autor:Yao L; Wang J; Li B; Meng Y; Ma X; Si E; Ren P; Yang K; Shang X; Wang H
[Ad] Endereço:Gansu Provincial Key Lab of Aridland Crop Science/Gansu Key Lab of Crop Improvement and Germplasm Enhancement, Lanzhou, China; College of Agronomy, Gansu Agricultural University, Lanzhou, China.
[Ti] Título:Transcriptome sequencing and comparative analysis of differentially-expressed isoforms in the roots of Halogeton glomeratus under salt stress.
[So] Source:Gene;646:159-168, 2018 Mar 10.
[Is] ISSN:1879-0038
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Although Halogeton glomeratus (H. glomeratus) has been confirmed to have a unique mechanism to regulate Na efflux from the cytoplasm and compartmentalize Na into leaf vacuoles, little is known about the salt tolerance mechanisms of roots under salinity stress. In the present study, transcripts were sequenced using the BGISEQ-500 sequencing platform (BGI, Wuhan, China). After quality control, approximately 24.08 million clean reads were obtained and the average mapping ratio to the reference gene was 70.00%. When comparing salt-treated samples with the control, a total of 550, 590, 1411 and 2063 DEIs were identified at 2, 6, 24 and 72h, respectively. Numerous differentially-expressed isoforms that play important roles in response and adaptation to salt condition are related to metabolic processes, cellular processes, single-organism processes, localization, biological regulation, responses to stimulus, binding, catalytic activity and transporter activity. Fifty-eight salt-induced isoforms were common to different stages of salt stress; most of these DEIs were related to signal transduction and transporters, which maybe the core isoforms regulating Na uptake and transport in the roots of H. glomeratus. The expression patterns of 18 DEIs that were detected by quantitative real-time polymerase chain reaction were consistent with their respective changes in transcript abundance as identified by RNA-Seq technology. The present study thoroughly explored potential isoforms involved in salt tolerance on H. glomeratus roots at five time points. Our results may serve as an important resource for the H. glomeratus research community, improving our understanding of salt tolerance in halophyte survival under high salinity stress.
[Mh] Termos MeSH primário: Chenopodiaceae/crescimento & desenvolvimento
Perfilação da Expressão Gênica/métodos
Sequenciamento de Nucleotídeos em Larga Escala/métodos
Proteínas de Plantas/genética
Análise de Sequência de RNA/métodos
[Mh] Termos MeSH secundário: Processamento Alternativo
Chenopodiaceae/efeitos dos fármacos
Chenopodiaceae/genética
Mapeamento Cromossômico
Regulação da Expressão Gênica de Plantas/efeitos dos fármacos
Raízes de Plantas/efeitos dos fármacos
Raízes de Plantas/genética
Raízes de Plantas/crescimento & desenvolvimento
Isoformas de Proteínas/genética
Tolerância a Sal
Cloreto de Sódio/farmacologia
Estresse Fisiológico
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Proteins); 0 (Protein Isoforms); 451W47IQ8X (Sodium Chloride)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180202
[Lr] Data última revisão:
180202
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180103
[St] Status:MEDLINE


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[PMID]:28466186
[Au] Autor:Tai F; Lv S; Jiang P; Wang J; Feng J; Li Y
[Ad] Endereço:Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, No. 20 Nanxincun, Xiangshan, Beijing, 100093, China.
[Ti] Título:Establishment of a gene function analysis system for the euhalophyte Salicornia europaea L.
[So] Source:Plant Cell Rep;36(8):1251-1261, 2017 Aug.
[Is] ISSN:1432-203X
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:KEY MESSAGE: A Salicornia europaea L. in vitro cell transformation system was developed and further applied to SeNHX1 function investigation. The exploration of salt-tolerant genes from halophyte has seriously been limited by the lack of self-dependent transformation system. Here, an Agrobacterium tumefaciens-mediated in vitro cell transformation system of euhalophyte Salicornia europaea L. was developed. Calli derived from hypocotyl of S. europaea were co-cultured for 3 days with Agrobacterium at OD ranging from 1.0 to 1.5 and then selected with 25 mg/L hygromycin (Hyg). The transformed cells were identified from Hyg positive calli by GUS assay and qRT-PCR, and the transformation efficiency was up to 74.4%. The practicality of this system was further tested via genetic manipulation of S. europaea Na /H antiporter 1 (SeNHX1) gene by creating the overexpressing, silencing, and empty vector cells. Survival ratio and Na distribution under salt treatment showed obvious differences in SeNHX1-overexpressing, -silencing, and empty vector cells, indicating the feasibility of this system to analyze gene function. This investigation is enlightening for studies in other non-model plants lacking of self-dependent transformation system.
[Mh] Termos MeSH primário: Chenopodiaceae/metabolismo
[Mh] Termos MeSH secundário: Agrobacterium tumefaciens/genética
Chenopodiaceae/efeitos dos fármacos
Chenopodiaceae/genética
Hipocótilo/efeitos dos fármacos
Hipocótilo/genética
Hipocótilo/metabolismo
Proteínas de Plantas/genética
Proteínas de Plantas/metabolismo
Plantas Geneticamente Modificadas/efeitos dos fármacos
Plantas Geneticamente Modificadas/genética
Plantas Geneticamente Modificadas/metabolismo
Tolerância a Sal/genética
Plantas Tolerantes a Sal/efeitos dos fármacos
Plantas Tolerantes a Sal/genética
Plantas Tolerantes a Sal/metabolismo
Cloreto de Sódio/farmacologia
Trocadores de Sódio-Hidrogênio/genética
Trocadores de Sódio-Hidrogênio/metabolismo
Transformação Genética/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Proteins); 0 (Sodium-Hydrogen Exchangers); 451W47IQ8X (Sodium Chloride)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180102
[Lr] Data última revisão:
180102
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170504
[St] Status:MEDLINE
[do] DOI:10.1007/s00299-017-2150-z


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[PMID]:28934362
[Au] Autor:Yao PC; Gao HY; Wei YN; Zhang JH; Chen XY; Li HQ
[Ad] Endereço:School of Life Sciences, East China Normal University, Shanghai, China.
[Ti] Título:Evaluating sampling strategy for DNA barcoding study of coastal and inland halo-tolerant Poaceae and Chenopodiaceae: A case study for increased sample size.
[So] Source:PLoS One;12(9):e0185311, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Environmental conditions in coastal salt marsh habitats have led to the development of specialist genetic adaptations. We evaluated six DNA barcode loci of the 53 species of Poaceae and 15 species of Chenopodiaceae from China's coastal salt marsh area and inland area. Our results indicate that the optimum DNA barcode was ITS for coastal salt-tolerant Poaceae and matK for the Chenopodiaceae. Sampling strategies for ten common species of Poaceae and Chenopodiaceae were analyzed according to optimum barcode. We found that by increasing the number of samples collected from the coastal salt marsh area on the basis of inland samples, the number of haplotypes of Arundinella hirta, Digitaria ciliaris, Eleusine indica, Imperata cylindrica, Setaria viridis, and Chenopodium glaucum increased, with a principal coordinate plot clearly showing increased distribution points. The results of a Mann-Whitney test showed that for Digitaria ciliaris, Eleusine indica, Imperata cylindrica, and Setaria viridis, the distribution of intraspecific genetic distances was significantly different when samples from the coastal salt marsh area were included (P < 0.01). These results suggest that increasing the sample size in specialist habitats can improve measurements of intraspecific genetic diversity, and will have a positive effect on the application of the DNA barcodes in widely distributed species. The results of random sampling showed that when sample size reached 11 for Chloris virgata, Chenopodium glaucum, and Dysphania ambrosioides, 13 for Setaria viridis, and 15 for Eleusine indica, Imperata cylindrica and Chenopodium album, average intraspecific distance tended to reach stability. These results indicate that the sample size for DNA barcode of globally distributed species should be increased to 11-15.
[Mh] Termos MeSH primário: Adaptação Fisiológica
Chenopodiaceae/classificação
Chenopodiaceae/fisiologia
Código de Barras de DNA Taxonômico/métodos
Poaceae/classificação
Poaceae/fisiologia
Salinidade
[Mh] Termos MeSH secundário: Chenopodiaceae/genética
DNA de Plantas/genética
Ecossistema
Variação Genética
Poaceae/genética
Tamanho da Amostra
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Plant)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171018
[Lr] Data última revisão:
171018
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170922
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0185311


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[PMID]:28920849
[Au] Autor:Cho ES; Cha IT; Park JM; Choi HJ; Lee JH; Roh SW; Cho EA; Kweon MH; Nam YD; Seo MJ
[Ad] Endereço:1​Department of Bioengineering and Nano-Bioengineering, Graduate School of Incheon National University, Incheon 22012, Republic of Korea.
[Ti] Título:Flavimarina flava sp. nov., isolated from Salicornia herbacea.
[So] Source:Int J Syst Evol Microbiol;67(10):4240-4245, 2017 Oct.
[Is] ISSN:1466-5034
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A Gram-stain-negative, motile-by-gliding, aerobic, non-spore-forming, rod-shaped and yellow-pigmented bacterium was isolated from Salicornia herbacea in the Yellow Sea and designated as strain MBLN091 . It belonged to the family Flavobacteriaceae. The 16S rRNA gene sequence of this isolated strain was similar to that of Flavimarina pacifica IDSW-73 with 94.8 % similarity, and with 92.3-92.8 % similarities to those of other closely related species of the genus Leeuwenhoekiella. The similarities of the RNA polymerase subunit B gene between this strain and F. pacifica KCTC 32466 and Leeuwenhoekiella marinoflava DSM 3653 were 80.5 and 80.2 %, respectively. Growth of strain MBLN091 was observed in the presence of 0.5‒15.0 % (w/v) NaCl at 4‒35 °C and pH 6.0-8.0, with optimal growth in the presence of 2.5‒5.0 % (w/v) NaCl at 20‒25 °C and pH 7.0. This isolate was able to hydrolyse gelatin. The only respiratory quinone was MK-6. The major polar lipids were phosphatidylethanolamine, an unidentified aminolipid and two unidentified lipids. Major fatty acids of the isolate were iso-C15 : 0, summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c), iso-C17 : 0 3-OH and iso-C15 : 1 G. The genomic DNA G+C content was 39.6 mol%. The physiological features were closely related to F. pacifica. Therefore, strain MBLN091 is considered to represent a novel species within the genus Flavimarina, for which the name Flavimarina flava sp. nov. is proposed. The type strain is MBLN091 (=KCTC 52527 =JCM 31731 ).
[Mh] Termos MeSH primário: Chenopodiaceae/microbiologia
Flavobacteriaceae/classificação
Filogenia
Água do Mar/microbiologia
[Mh] Termos MeSH secundário: Técnicas de Tipagem Bacteriana
Composição de Bases
DNA Bacteriano/genética
Ácidos Graxos/química
Flavobacteriaceae/genética
Flavobacteriaceae/isolamento & purificação
Fosfatidiletanolaminas/química
Pigmentação
RNA Ribossômico 16S/genética
Análise de Sequência de DNA
Vitamina K 2/análogos & derivados
Vitamina K 2/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial); 0 (Fatty Acids); 0 (Phosphatidylethanolamines); 0 (RNA, Ribosomal, 16S); 11032-49-8 (Vitamin K 2); 39382-08-6 (phosphatidylethanolamine); 71ANL51TLA (menaquinone 6)
[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:170919
[St] Status:MEDLINE
[do] DOI:10.1099/ijsem.0.002292


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[PMID]:28853692
[Au] Autor:Fidalgo C; Rocha J; Martins R; Proença DN; Morais PV; Henriques I; Alves A
[Ad] Endereço:1​Departamento de Biologia, CESAM, Universidade de Aveiro, Aveiro, Portugal.
[Ti] Título:Altererythrobacter halimionae sp. nov. and Altererythrobacter endophyticus sp. nov., two endophytes from the salt marsh plant Halimione portulacoides.
[So] Source:Int J Syst Evol Microbiol;67(8):3057-3062, 2017 Aug.
[Is] ISSN:1466-5034
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Two Gram-negative, rod-shaped, motile bacterial strains, named CPA5T and BR75T, were isolated from the halophyte Halimione portulacoides. Both presented optimum growth at 30 °C, pH 7.0-7.5 and 1-2 % NaCl (w/v) for strain CPA5T, and pH 7.5-8.0 and 2 % NaCl (w/v) for strain BR75T. Phylogenetic analyses based on 16S rRNA gene sequences affiliated both strains to the genus Altererythrobacter. CPA5T presented highest 16S rRNA gene sequence similarity with Altererythrobacter aestuarii KYW147T (96.5 %), followed by Altererythrobacter namhicola KYW48T (95.9 %), Novosphingobium indicum H25T (95.6 %) and Altererythrobacter oceanensis Y2T (95.5 %). BR75T displayed highest similarity with Altererythrobacter marensis MSW-14T (96.5 %), followed by Altererythrobacter xinjiangensis S3-63T, Altererythrobacter luteolus SW-109T and Altererythrobacter indicus MSSRF26T (96.1 %). Neither strain contained Bacteriochlorophyll a. The main fatty acids observed for CPA5T were C17 : 1ω6c and summed features 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH) and 8 (C18 : 1 ω7c and/or C18 : 1ω6c). The latter summed feature was the dominant fatty acid observed for strain BR75T as well. The major polar lipids were phosphatidylethanolamine, unidentified phospholipids and unidentified glycolipids for both strains. The predominant ubiquinone was Q-10 for both strains, and the DNA G+C contents were 63.4 mol% and 58.3 mol% for CPA5T and BR75T, respectively. Based on phenotypic and genotypic results, both strains represent novel species belonging to the genus Altererythrobacter for which the names Altererythrobacter halimionae sp. nov. (type strain CPA5T=CECT 9130T=LMG 29519T) and Altererythrobacter endophyticus sp. nov (type strain BR75T=CECT 9129T=LMG 29518T) are proposed.
[Mh] Termos MeSH primário: Alphaproteobacteria/classificação
Chenopodiaceae/microbiologia
Filogenia
Zonas Úmidas
[Mh] Termos MeSH secundário: Alphaproteobacteria/genética
Alphaproteobacteria/isolamento & purificação
Técnicas de Tipagem Bacteriana
Composição de Bases
DNA Bacteriano/genética
Endófitos/classificação
Endófitos/genética
Endófitos/isolamento & purificação
Ácidos Graxos/química
Glicolipídeos/química
Fosfolipídeos/química
Portugal
RNA Ribossômico 16S/genética
Plantas Tolerantes a Sal/microbiologia
Análise de Sequência de DNA
Ubiquinona/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial); 0 (Fatty Acids); 0 (Glycolipids); 0 (Phospholipids); 0 (RNA, Ribosomal, 16S); 1339-63-5 (Ubiquinone); I7T5V2W47R (Ubiquinone Q2)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170915
[Lr] Data última revisão:
170915
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170831
[St] Status:MEDLINE
[do] DOI:10.1099/ijsem.0.002079


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[PMID]:28675353
[Au] Autor:Fidalgo C; Rocha J; Proença DN; Morais PV; Alves A; Henriques I
[Ad] Endereço:1​Departamento de Biologia, CESAM, Universidade de Aveiro, Aveiro, Portugal.
[Ti] Título:Saccharospirillum correiae sp. nov., an endophytic bacterium isolated from the halophyte Halimione portulacoides.
[So] Source:Int J Syst Evol Microbiol;67(6):2026-2030, 2017 Jun.
[Is] ISSN:1466-5034
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A Gram-stain negative, oxidase- and catalase- positive, motile, aerobic, non-pigmented spirillum, designated CPA1T, was isolated from the surface-sterilized tissues of a halophyte, Halimione portulacoides, collected from a salt marsh in Aveiro, Portugal. The isolate was mesophilic, facultatively alkaliphilic and halophilic, and grew between 18 and 42.5 °C (optimum 30 °C), from pH 5.0 to 11.5 (optimum 7.0-7.5), from 0.5 to 5 % NaCl (w/v, optimum 2 %). Analysis of the 16S rRNA gene sequence showed that this strain belongs to the genus Saccharospirillum, as the highest sequence similarities were observed with Saccharospirillum impatiens EL-105T (96.46 %), Saccharospirillum salsuginis YIM-Y25T (96.32 %) and Saccharospirillum aestuariiIMCC 4453T (95.17 %). The next closest matches were with other genera and below 95.0 %. Phylogenetic analyses revealed that the strain forms a robust clade with other species of the genus Saccharospirillum. The main respiratory quinone was Q-8 and the major fatty acids were C16 : 0 and summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c). The DNA G+C content was 55.2 mol%. Molecular, physiological and biochemical differences between strain CPA1T and other type strains of species of the genus Saccharospirillum support the addition of this novel species to the genus, and the name Saccharospirillum correiae sp. nov. is proposed, with CPA1T (=CECT 9131T=LMG 29516T) as the type strain.
[Mh] Termos MeSH primário: Chenopodiaceae/microbiologia
Gammaproteobacteria/classificação
Filogenia
Plantas Tolerantes a Sal/microbiologia
[Mh] Termos MeSH secundário: Técnicas de Tipagem Bacteriana
Composição de Bases
DNA Bacteriano/genética
Ácidos Graxos/química
Gammaproteobacteria/genética
Gammaproteobacteria/isolamento & purificação
Portugal
RNA Ribossômico 16S/genética
Análise de Sequência de DNA
Ubiquinona/química
Zonas Úmidas
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial); 0 (Fatty Acids); 0 (RNA, Ribosomal, 16S); 1339-63-5 (Ubiquinone); CQA993F7P8 (ubiquinone 8)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170825
[Lr] Data última revisão:
170825
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170705
[St] Status:MEDLINE
[do] DOI:10.1099/ijsem.0.001914


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[PMID]:28552965
[Au] Autor:Zhou J; Cui L; Pan X; Li W; Zhang M; Kang X
[Ad] Endereço:Institute of Wetland Research, Chinese Academic of Forestry, Beijing, China.
[Ti] Título:Does salt stress affect the interspecific interaction between regionally dominant Suaeda salsa and Scirpus planiculumis?
[So] Source:PLoS One;12(5):e0177497, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Plant-plant interactions that change along environmental gradients can be affected by different combinations of environmental characteristics, such as the species and planting density ratios. Suaeda salsa and Scirpus planiculumis are regionally dominant species in the Shuangtai estuarine wetland. Compared with non-clonal S. salsa, clonal S. planiculumis has competitive advantages because of its morphological plasticity. However, salt-tolerant S. salsa may grow faster than S. planiculumis in saline-alkali estuary soil. Whether the interactions between these two species along salinity gradients are affected by the level of salt stress and mixed planting density ratio remains unclear. Thus, to test the effects of salt stress and planting density ratios on the interactions between S. planiculumis and S. salsa in the late growing season, we conducted a greenhouse experiment consisting of 3 salinity levels (0, 8 and 15ppt) and 5 planting density ratios. Our results showed that the promotion of S. salsa growth and inhibition of S. planiculumis growth at low salinity levels (8 ppt) did not alter the interactions between the two species. Facilitation of S. salsa occurred at high salinity levels, and the magnitude of this net outcome decreased with increases in the proportion of S. salsa. These results suggest that competition and facilitation processes not only depend on the combinations of different life-history characteristics of species but also on the planting density ratio. These findings may contribute to the understanding of the responses of estuarine wetland plant-plant interactions to human modifications of estuarine salinity.
[Mh] Termos MeSH primário: Chenopodiaceae/fisiologia
Cyperaceae/fisiologia
Salinidade
Estresse Fisiológico
[Mh] Termos MeSH secundário: Chenopodiaceae/crescimento & desenvolvimento
Cyperaceae/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170921
[Lr] Data última revisão:
170921
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170530
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0177497


  10 / 629 MEDLINE  
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[PMID]:28504841
[Au] Autor:Soares MH; Dias HJ; Vieira TM; de Souza MGM; Cruz AFF; Badoco FR; Nicolella HD; Cunha WR; Groppo M; Martins CHG; Tavares DC; Magalhães LG; Crotti AEM
[Ad] Endereço:Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, CEP 14040-600, Franca, SP, Brazil.
[Ti] Título:Chemical Composition, Antibacterial, Schistosomicidal, and Cytotoxic Activities of the Essential Oil of Dysphania ambrosioides (L.) Mosyakin & Clemants (Chenopodiaceae).
[So] Source:Chem Biodivers;14(8), 2017 Aug.
[Is] ISSN:1612-1880
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:We have investigated the chemical composition and the antibacterial activity of the essential oil of Dysphania ambrosioides (L.) Mosyakin & Clemants (Chenopodiaceae) (DA-EO) against a representative panel of cariogenic bacteria. We have also assessed the in vitro schistosomicidal effects of DA-EO on Schistosoma mansoni and its cytotoxicity to GM07492-A cells in vitro. Gas chromatography (GC) and gas chromatography-mass spectrometry (GC/MS) revealed that the monoterpenes cis-piperitone oxide (35.2%), p-cymene (14.5%), isoascaridole (14.1%), and α-terpinene (11.6%) were identified by as the major constituents of DA-EO. DA-EO displayed weak activity against Streptococcus sobrinus and Enterococcus faecalis (minimum inhibitory concentration (MIC) = 1000 µg/ml). On the other hand, DA-EO at 25 and 12.5 µg/ml presented remarkable schistosomicidal action in vitro and killed 100% of adult worm pairs within 24 and 72 h, respectively. The LC values of DA-EO were 6.50 ± 0.38, 3.66 ± 1.06, and 3.65 ± 0.76 µg/ml at 24, 48, and 72 h, respectively. However, DA-EO at concentrations higher than 312.5 µg/ml significantly reduced the viability of GM07492-A cells (IC  = 207.1 ± 4.4 µg/ml). The selectivity index showed that DA-EO was 31.8 times more toxic to the adult S. mansoni worms than GM07492-A cells. Taken together, these results demonstrate the promising schistosomicidal potential of the essential oil of Dysphania ambrosioides.
[Mh] Termos MeSH primário: Chenopodiaceae/química
Óleos Voláteis/química
Óleos Voláteis/farmacologia
Schistosoma mansoni/efeitos dos fármacos
Esquistossomicidas/química
Esquistossomicidas/farmacologia
[Mh] Termos MeSH secundário: Animais
Antibacterianos/química
Antibacterianos/isolamento & purificação
Antibacterianos/farmacologia
Linhagem Celular Tumoral
Sobrevivência Celular/efeitos dos fármacos
Chenopodiaceae/metabolismo
Enterococcus faecalis/efeitos dos fármacos
Cromatografia Gasosa-Espectrometria de Massas
Seres Humanos
Lactobacillus casei/efeitos dos fármacos
Testes de Sensibilidade Microbiana
Óleos Voláteis/isolamento & purificação
Óleos Voláteis/toxicidade
Esquistossomicidas/isolamento & purificação
Streptococcus/efeitos dos fármacos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Bacterial Agents); 0 (Oils, Volatile); 0 (Schistosomicides)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170927
[Lr] Data última revisão:
170927
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170516
[St] Status:MEDLINE
[do] DOI:10.1002/cbdv.201700149



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