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Pesquisa : G16.500.275.157.100 [Categoria DeCS]
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  1 / 27828 MEDLINE  
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[PMID]:29447189
[Au] Autor:Saleem AR; Brunetti C; Khalid A; Della Rocca G; Raio A; Emiliani G; De Carlo A; Mahmood T; Centritto M
[Ad] Endereço:Department of Earth and Environmental Sciences, Bahria University Islamabad Campus, Islamabad, Pakistan.
[Ti] Título:Drought response of Mucuna pruriens (L.) DC. inoculated with ACC deaminase and IAA producing rhizobacteria.
[So] Source:PLoS One;13(2):e0191218, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Drought is one of the major constraints limiting agricultural production worldwide and is expected to increase in the future. Limited water availability causes significant effects to plant growth and physiology. Plants have evolved different traits to mitigate the stress imposed by drought. The presence of plant growth-promoting rhizobacteria (PGPR) could play an important role in improving plant performances and productivity under drought. These beneficial microorganisms colonize the rhizosphere of plants and increase drought tolerance by lowering ethylene formation. In the present study, we demonstrate the potential to improve the growth of velvet bean under water deficit conditions of two different strains of PGPR with ACCd (1-Aminocyclopropane-1-Carboxylate deaminase) activity isolated from rainfed farming system. We compared uninoculated and inoculated plants with PGPR to assess: a) photosynthetic performance and biomass; b) ACC content and ethylene emission from leaves and roots; c) leaf isoprene emission. Our results provided evidence that under drought conditions inoculation with PGPR containing the ACCd enzyme could improve plant growth compared to untreated plants. Ethylene emission from roots and leaves of inoculated velvet bean plants was significantly lower than uninoculated plants. Moreover, isoprene emission increased with drought stress progression and was higher in inoculated plants compared to uninoculated counterparts. These findings clearly illustrate that selected PGPR strains isolated from rainfed areas could be highly effective in promoting plant growth under drought conditions by decreasing ACC and ethylene levels in plants.
[Mh] Termos MeSH primário: Mucuna/metabolismo
Reguladores de Crescimento de Planta/metabolismo
Rhizobiaceae/metabolismo
[Mh] Termos MeSH secundário: Biomassa
Carbono-Carbono Liases/metabolismo
Secas
Etilenos/biossíntese
Mucuna/fisiologia
Fotossíntese
Desenvolvimento Vegetal
Reguladores de Crescimento de Planta/fisiologia
Raízes de Plantas/crescimento & desenvolvimento
Rhizobiaceae/genética
Rizosfera
Microbiologia do Solo
Água/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Ethylenes); 0 (Plant Growth Regulators); 059QF0KO0R (Water); 91GW059KN7 (ethylene); EC 3.5.99.7 (1-aminocyclopropane-1-carboxylate deaminase); EC 4.1.- (Carbon-Carbon Lyases)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180216
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191218


  2 / 27828 MEDLINE  
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[PMID]:29377926
[Au] Autor:Pan P; Zhao F; Ning J; Zhang L; Ouyang X; Zang H
[Ad] Endereço:College of Forestry, Jiangxi Agricultural University, Nanchang, China.
[Ti] Título:Impact of understory vegetation on soil carbon and nitrogen dynamic in aerially seeded Pinus massoniana plantations.
[So] Source:PLoS One;13(1):e0191952, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Understory vegetation plays a vital role in regulating soil carbon (C) and nitrogen (N) characteristics due to differences in plant functional traits. Different understory vegetation types have been reported following aerial seeding. While aerial seeding is common in areas with serious soil erosion, few studies have been conducted to investigate changes in soil C and N cycling as affected by understory vegetation in aerially seeded plantations. Here, we studied soil C and N characteristics under two naturally formed understory vegetation types (Dicranopteris and graminoid) in aerially seeded Pinus massoniana Lamb plantations. Across the two studied understory vegetation types, soil organic C was significantly correlated with all measured soil N variables, including total N, available N, microbial biomass N and water-soluble organic N, while microbial biomass C was correlated with all measured variables except soil organic C. Dicranopteris and graminoid differed in their effects on soil C and N process. Except water-soluble organic C, all the other C and N variables were higher in soils with graminoids. The higher levels of soil organic C, microbial biomass C, total N, available N, microbial biomass N and water-soluble organic N were consistent with the higher litter and root quality (C/N) of graminoid vegetation compared to Dicranopteris. Changes in soil C and N cycles might be impacted by understory vegetation types via differences in litter or root quality.
[Mh] Termos MeSH primário: Carbono/metabolismo
Nitrogênio/metabolismo
Pinus/metabolismo
Plantas/metabolismo
Solo/química
[Mh] Termos MeSH secundário: Biomassa
Carbono/química
Nitrogênio/química
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Soil); 7440-44-0 (Carbon); N762921K75 (Nitrogen)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180130
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191952


  3 / 27828 MEDLINE  
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[PMID]:28858706
[Au] Autor:Modlitbová P; Novotný K; Porízka P; Klus J; Lubal P; Zlámalová-Gargosová H; Kaiser J
[Ad] Endereço:Central European Institute of Technology (CEITEC) Brno University of Technology, Technická 3058/10, 616 00 Brno, Czech Republic. Electronic address: Pavlina.Skarkova@ceitec.vutbr.cz.
[Ti] Título:Comparative investigation of toxicity and bioaccumulation of Cd-based quantum dots and Cd salt in freshwater plant Lemna minor L.
[So] Source:Ecotoxicol Environ Saf;147:334-341, 2018 Jan.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The purpose of this study was to determine the toxicity of two different sources of cadmium, i.e. CdCl and Cd-based Quantum Dots (QDs), for freshwater model plant Lemna minor L. Cadmium telluride QDs were capped with two coating ligands: glutathione (GSH) or 3-mercaptopropionic acid (MPA). Growth rate inhibition and final biomass inhibition of L. minor after 168-h exposure were monitored as toxicity endpoints. Dose-response curves for Cd toxicity and EC50 values were statistically evaluated for all sources of Cd to uncover possible differences among the toxicities of tested compounds. Total Cd content and its bioaccumulation factors (BAFs) in L. minor after the exposure period were also determined to distinguish Cd bioaccumulation patterns with respect to different test compounds. Laser-Induced Breakdown Spectroscopy (LIBS) with lateral resolution of 200µm was employed in order to obtain two-dimensional maps of Cd spatial distribution in L. minor fronds. Our results show that GSH- and MPA-capped Cd-based QDs have similar toxicity for L. minor, but are significantly less toxic than CdCl . However, both sources of Cd lead to similar patterns of Cd bioaccumulation and distribution in L. minor fronds. Our results are in line with previous reports that the main mediators of Cd toxicity and bioaccumulation in aquatic plants are Cd ions dissolved from Cd-based QDs.
[Mh] Termos MeSH primário: Araceae/efeitos dos fármacos
Cloreto de Cádmio/toxicidade
Compostos de Cádmio/toxicidade
Monitoramento Ambiental/métodos
Pontos Quânticos/toxicidade
Telúrio/toxicidade
Poluentes Químicos da Água/toxicidade
[Mh] Termos MeSH secundário: Ácido 3-Mercaptopropiônico/química
Adsorção
Araceae/crescimento & desenvolvimento
Araceae/metabolismo
Biomassa
Cloreto de Cádmio/metabolismo
Compostos de Cádmio/metabolismo
Água Doce/química
Glutationa/química
Modelos Teóricos
Pontos Quânticos/metabolismo
Telúrio/metabolismo
Poluentes Químicos da Água/química
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Cadmium Compounds); 0 (Water Pollutants, Chemical); B03TJ3QU9M (3-Mercaptopropionic Acid); GAN16C9B8O (Glutathione); J6K4F9V3BA (Cadmium Chloride); NQA0O090ZJ (Tellurium); STG188WO13 (cadmium telluride)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170901
[St] Status:MEDLINE


  4 / 27828 MEDLINE  
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[PMID]:28837874
[Au] Autor:Halecki W; Klatka S
[Ad] Endereço:Department of Land Reclamation and Environmental Development, University of Agriculture, Al. Mickiewicza 24/28, 30-059 Kraków, Poland. Electronic address: wiktor.halecki@urk.edu.pl.
[Ti] Título:Long term growth of crop plants on experimental plots created among slag heaps.
[So] Source:Ecotoxicol Environ Saf;147:86-92, 2018 Jan.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Suppression of plant growth is a common problem in post-mining reclaimed areas, as coarse texture of soils may increase nitrate leaching. Assessing feasibility of using solid waste (precipitated solid matter) produced by water and sewage treatment processes in field conditions is very important in mine soil reclamation. Our work investigated the possibility of plant growth in a degraded site covered with sewage-derived sludge material. A test area (21m × 18m) was established on a mine soil heap. Experimental plant species included Camelina sativa, Helianthus annuus, Festuca rubra, Miscanthus giganteus, Amaranthus cruentus, Brassica napus, Melilotus albus, Beta vulgaris, and Zea mays. ANOVA showed sufficient water content and acceptable physical properties of the soil in each year and layer in a multi-year period, indicating that these species were suitable for phytoremediation purposes. Results of trace elements assays indicated low degree of contamination caused by Carbocrash waste material and low potential ecological risk for all plant species. Detrended correspondence analysis revealed that total porosity and capillary porosity were the most important variables for the biosolids among all water content related properties. Overall, crop plants were found useful on heavily degraded land and the soil benefited from their presence. An addition of Carbocrash substrate to mine soil improved the initial stage of soil reclamation and accelerated plant growth. The use of this substrate in phytoremediation helped to balance the content of nutrients, promoted plant growth, and increased plant tolerance to salinity. Sewage sludge-amended biosolids may be applied directly to agricultural soil, not only in experimental conditions.
[Mh] Termos MeSH primário: Produtos Agrícolas/crescimento & desenvolvimento
Mineração
Esgotos/química
Poluentes do Solo/análise
Solo/química
Resíduos Sólidos/análise
[Mh] Termos MeSH secundário: Biodegradação Ambiental
Biomassa
Polônia
Porosidade
Propriedades de Superfície
Fatores de Tempo
Oligoelementos/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Sewage); 0 (Soil); 0 (Soil Pollutants); 0 (Solid Waste); 0 (Trace Elements)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170825
[St] Status:MEDLINE


  5 / 27828 MEDLINE  
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[PMID]:28968924
[Au] Autor:Zvobgo G; LwalabaWaLwalaba J; Sagonda T; Mutemachani Mapodzeke J; Muhammad N; Haider Shamsi I; Zhang G
[Ad] Endereço:Department of Agronomy, College of Agriculture and Biotechnology, Key Laboratory of Crop Germplasm Resource, Zhejiang University, Hangzhou 310058, PR China.
[Ti] Título:Phosphate alleviates arsenate toxicity by altering expression of phosphate transporters in the tolerant barley genotypes.
[So] Source:Ecotoxicol Environ Saf;147:832-839, 2018 Jan.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The contribution of the phosphate transporters (PHTs) in uptake of arsenate (As ) and phosphate (P) is a widely recognized mechanism. Here we investigated how P regulates the uptake of As and the subsequent effects on growth and relative expression of PHTs. The study was conducted on 3 barley genotypes differing in As tolerance (ZDB160, As-tolerant; ZDB115, moderately tolerant; ZDB475, As-sensitive) using a hydroponic experiment. There were 3 As (0, 10 and 100µM) and 3P (0, 50 and 500µM) levels. The results showed that the negative effect of As stress on plant growth, photosynthesis and cell ultra-structure is As dose and barley genotype dependent, confirming the distinctly genotypic difference in As tolerance. As uptake and accumulation in plant tissues are closely associated with inhibited extent of growth and photosynthesis, with the tolerant genotype ZDB160 having lower As content than other two genotypes. The toxic effect caused by As stress could be alleviated by P addition, mainly due to reduced As uptake. Moreover, the tolerant genotype showed relatively lower expression PHTs than sensitive ones upon exposure to both As stress and P addition, suggesting regulation of PHTs expression is a major mechanism for relative uptake of As and P, in subsequence affecting As tolerance. Moreover, among 6 PHTs examined in this study, the expressions of PHT1.3, PHT1.4 and PHT1.6 showed the marked difference among the three barley genotypes in responses to As stress and P addition, indicating further research on the contribution of phosphate transporters to As and P uptake should be focused on these PHTs.
[Mh] Termos MeSH primário: Adaptação Biológica
Arseniatos/toxicidade
Regulação da Expressão Gênica de Plantas/efeitos dos fármacos
Hordeum/metabolismo
Proteínas de Transporte de Fosfato/genética
Fosfatos/farmacologia
Poluentes do Solo/toxicidade
[Mh] Termos MeSH secundário: Adaptação Biológica/genética
Arseniatos/metabolismo
Biomassa
Genótipo
Hordeum/genética
Hordeum/crescimento & desenvolvimento
Modelos Teóricos
Fosfatos/metabolismo
Fotossíntese/efeitos dos fármacos
Poluentes do Solo/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Arsenates); 0 (Phosphate Transport Proteins); 0 (Phosphates); 0 (Soil Pollutants)
[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:171004
[St] Status:MEDLINE


  6 / 27828 MEDLINE  
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[PMID]:28449073
[Au] Autor:Berlin S; Hallingbäck HR; Beyer F; Nordh NE; Weih M; Rönnberg-Wästljung AC
[Ad] Endereço:Swedish University of Agricultural Sciences, Department of Plant Biology, Uppsala BioCenter, Linnean Centre for Plant Biology, P.O. Box 7080, SE-750 07 Uppsala, Sweden.
[Ti] Título:Genetics of phenotypic plasticity and biomass traits in hybrid willows across contrasting environments and years.
[So] Source:Ann Bot;120(1):87-100, 2017 Jul 01.
[Is] ISSN:1095-8290
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Background and Aims: Phenotypic plasticity can affect the geographical distribution of taxa and greatly impact the productivity of crops across contrasting and variable environments. The main objectives of this study were to identify genotype-phenotype associations in key biomass and phenology traits and the strength of phenotypic plasticity of these traits in a short-rotation coppice willow population across multiple years and contrasting environments to facilitate marker-assisted selection for these traits. Methods: A hybrid Salix viminalis × ( S. viminalis × Salix schwerinii ) population with 463 individuals was clonally propagated and planted in three common garden experiments comprising one climatic contrast between Sweden and Italy and one water availability contrast in Italy. Several key phenotypic traits were measured and phenotypic plasticity was estimated as the trait value difference between experiments. Quantitative trait locus (QTL) mapping analyses were conducted using a dense linkage map and phenotypic effects of S. schwerinii haplotypes derived from detected QTL were assessed. Key Results: Across the climatic contrast, clone predictor correlations for biomass traits were low and few common biomass QTL were detected. This indicates that the genetic regulation of biomass traits was sensitive to environmental variation. Biomass QTL were, however, frequently shared across years and across the water availability contrast. Phenology QTL were generally shared between all experiments. Substantial phenotypic plasticity was found among the hybrid offspring, that to a large extent had a genetic origin. Individuals carrying influential S. schwerinii haplotypes generally performed well in Sweden but less well in Italy in terms of biomass production. Conclusions: The results indicate that specific genetic elements of S. schwerinii are more suited to Swedish conditions than to those of Italy. Therefore, selection should preferably be conducted separately for such environments in order to maximize biomass production in admixed S. viminalis × S. schwerinii populations.
[Mh] Termos MeSH primário: Biomassa
Meio Ambiente
Fenótipo
Salix/genética
[Mh] Termos MeSH secundário: Mapeamento Cromossômico
Estudos de Associação Genética
Itália
Locos de Características Quantitativas
Salix/crescimento & desenvolvimento
Suécia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1712
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170428
[St] Status:MEDLINE
[do] DOI:10.1093/aob/mcx029


  7 / 27828 MEDLINE  
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[PMID]:29295998
[Au] Autor:Woodson CB; Schramski JR; Joye SB
[Ad] Endereço:School of Environmental, Civil, and Environmental Engineering, University of Georgia, Athens, GA, 30602, USA. bwoodson@uga.edu.
[Ti] Título:A unifying theory for top-heavy ecosystem structure in the ocean.
[So] Source:Nat Commun;9(1):23, 2018 01 02.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Size generally dictates metabolic requirements, trophic level, and consequently, ecosystem structure, where inefficient energy transfer leads to bottom-heavy ecosystem structure and biomass decreases as individual size (or trophic level) increases. However, many animals deviate from simple size-based predictions by either adopting generalist predatory behavior, or feeding lower in the trophic web than predicted from their size. Here we show that generalist predatory behavior and lower trophic feeding at large body size increase overall biomass and shift ecosystems from a bottom-heavy pyramid to a top-heavy hourglass shape, with the most biomass accounted for by the largest animals. These effects could be especially dramatic in the ocean, where primary producers are the smallest components of the ecosystem. This approach makes it possible to explore and predict, in the past and in the future, the structure of ocean ecosystems without biomass extraction and other impacts.
[Mh] Termos MeSH primário: Ecossistema
Peixes/fisiologia
Cadeia Alimentar
Modelos Biológicos
[Mh] Termos MeSH secundário: Animais
Antozoários/classificação
Antozoários/fisiologia
Biomassa
Tamanho Corporal
Comportamento Alimentar/fisiologia
Pesqueiros/estatística & dados numéricos
Pesqueiros/tendências
Peixes/classificação
Oceanos e Mares
Plâncton/classificação
Plâncton/fisiologia
Dinâmica Populacional
Comportamento Predatório/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180306
[Lr] Data última revisão:
180306
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180104
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-017-02450-y


  8 / 27828 MEDLINE  
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[PMID]:29292978
[Au] Autor:Palm A; Wilander E; Wallgren S; Hillerdal G
[Ad] Endereço:Department of Medical Sciences, Respiratory, Allergy and Sleep Research - Uppsala, Sweden Department of Medical Sciences, Respiratory, Allergy and Sleep Research - Uppsala, Sweden.
[Ti] Título:Sotrökslunga är en ny sjukdom i Sverige - Exponering för rök från biomassa är orsaken..
[So] Source:Lakartidningen;114, 2017 Dec 18.
[Is] ISSN:1652-7518
[Cp] País de publicação:Sweden
[La] Idioma:swe
[Ab] Resumo:Black smoke lung disease - a new disease in Sweden We describe two elderly female patients, immigrants to Sweden from Afghanistan, with intensive longtime exposure to smoke from biomass, and who presented with bronchial stenosis and severe bronchial obstruction. CT and X-ray showed bizarre perihilar infiltrates in the lungs. Bronchoscopy revealed black narrow bronchi with a middle lobe stenosis in one of the patients. These findings indicate the diagnosis bronchial anthracofibrosis (BAF). The here described findings are seen mainly in elderly never-smoking women from developing countries who have spent years cooking food in poorly ventilated kitchens. With increased immigration from these countries such cases will be seen in industrialized countries as well. Active tuberculosis must always be excluded but otherwise no more active investigations such as biopsies are warranted. We suggest that this disease should be termed ¼black smoke disease« to differentiate it from coal workers' pneumoconiosis, silicosis, and other classical occupational diseases which can have similar clinical and radiological pictures. This term is easily understood even by non-medical persons and illustratess both the etiology and the black bronchi.
[Mh] Termos MeSH primário: Antracose
Fumaça/efeitos adversos
[Mh] Termos MeSH secundário: Afeganistão/etnologia
Antracose/diagnóstico
Antracose/diagnóstico por imagem
Antracose/etiologia
Antracose/patologia
Biomassa
Broncoscopia
Materiais de Construção/efeitos adversos
Feminino
Seres Humanos
Irã (Geográfico)/etnologia
Meia-Idade
Exposição Ocupacional/efeitos adversos
Radiografia
Suécia
Tomografia Computadorizada por Raios X
[Pt] Tipo de publicação:CASE REPORTS
[Nm] Nome de substância:
0 (Smoke)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180306
[Lr] Data última revisão:
180306
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180103
[St] Status:MEDLINE


  9 / 27828 MEDLINE  
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[PMID]:29351566
[Au] Autor:Samoilys M; Roche R; Koldewey H; Turner J
[Ad] Endereço:CORDIO East Africa, Mombasa, Kenya.
[Ti] Título:Patterns in reef fish assemblages: Insights from the Chagos Archipelago.
[So] Source:PLoS One;13(1):e0191448, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Understanding the drivers of variability in the composition of fish assemblages across the Indo-Pacific region is crucial to support coral reef ecosystem resilience. Whilst numerous relationships and feedback mechanisms between the functional roles of coral reef fishes and reef benthic composition have been investigated, certain key groups, such as the herbivores, are widely suggested to maintain reefs in a coral-dominated state. Examining links between fishes and reef benthos is complicated by the interactions between natural processes, disturbance events and anthropogenic impacts, particularly fishing pressure. This study examined fish assemblages and associated benthic variables across five atolls within the Chagos Archipelago, where fishing pressure is largely absent, to better understand these relationships. We found high variability in fish assemblages among atolls and sites across the archipelago, especially for key groups such as a suite of grazer-detritivore surgeonfish, and the parrotfishes which varied in density over 40-fold between sites. Differences in fish assemblages were significantly associated with variable levels of both live and recently dead coral cover and rugosity. We suggest these results reflect differing coral recovery trajectories following coral bleaching events and a strong influence of 'bottom-up' control mechanisms on fish assemblages. Species level analyses revealed that Scarus niger, Acanthurus nigrofuscus and Chlorurus strongylocephalos were key species driving differences in fish assemblage structure. Clarifying the trophic roles of herbivorous and detritivorous reef fishes will require species-level studies, which also examine feeding behaviour, to fully understand their contribution in maintaining reef resilience to climate change and fishing impacts.
[Mh] Termos MeSH primário: Recifes de Corais
Peixes
[Mh] Termos MeSH secundário: Animais
Antozoários
Biodiversidade
Biomassa
Mudança Climática
Conservação dos Recursos Naturais
Comportamento Alimentar
Pesqueiros
Peixes/classificação
Peixes/fisiologia
Herbivoria
Oceano Índico
Ilhas do Oceano Índico
Densidade Demográfica
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180305
[Lr] Data última revisão:
180305
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180120
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191448


  10 / 27828 MEDLINE  
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[PMID]:29296020
[Au] Autor:Swenson TL; Karaoz U; Swenson JM; Bowen BP; Northen TR
[Ad] Endereço:Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd, Berkeley, CA, 94720, USA.
[Ti] Título:Linking soil biology and chemistry in biological soil crust using isolate exometabolomics.
[So] Source:Nat Commun;9(1):19, 2018 01 02.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Metagenomic sequencing provides a window into microbial community structure and metabolic potential; however, linking these data to exogenous metabolites that microorganisms process and produce (the exometabolome) remains challenging. Previously, we observed strong exometabolite niche partitioning among bacterial isolates from biological soil crust (biocrust). Here we examine native biocrust to determine if these patterns are reproduced in the environment. Overall, most soil metabolites display the expected relationship (positive or negative correlation) with four dominant bacteria following a wetting event and across biocrust developmental stages. For metabolites that were previously found to be consumed by an isolate, 70% are negatively correlated with the abundance of the isolate's closest matching environmental relative in situ, whereas for released metabolites, 67% were positively correlated. Our results demonstrate that metabolite profiling, shotgun sequencing and exometabolomics may be successfully integrated to functionally link microbial community structure with environmental chemistry in biocrust.
[Mh] Termos MeSH primário: Bactérias/metabolismo
Ecossistema
Metabolômica/métodos
Microbiologia do Solo
Solo/química
[Mh] Termos MeSH secundário: Bactérias/classificação
Proteínas de Bactérias/genética
Proteínas de Bactérias/metabolismo
Biomassa
Metagenoma/genética
Dinâmica Populacional
Análise de Sequência de DNA
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, N.I.H., EXTRAMURAL; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
0 (Bacterial Proteins); 0 (Soil)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180305
[Lr] Data última revisão:
180305
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180104
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-017-02356-9



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