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[PMID]:29329343
[Au] Autor:Liu Z; Dugan B; Masiello CA; Wahab LM; Gonnermann HM; Nittrouer JA
[Ad] Endereço:Department of Earth, Environmental, and Planetary Sciences, Rice University, Houston, Texas, United States of America.
[Ti] Título:Effect of freeze-thaw cycling on grain size of biochar.
[So] Source:PLoS One;13(1):e0191246, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Biochar may improve soil hydrology by altering soil porosity, density, hydraulic conductivity, and water-holding capacity. These properties are associated with the grain size distributions of both soil and biochar, and therefore may change as biochar weathers. Here we report how freeze-thaw (F-T) cycling impacts the grain size of pine, mesquite, miscanthus, and sewage waste biochars under two drainage conditions: undrained (all biochars) and a gravity-drained experiment (mesquite biochar only). In the undrained experiment plant biochars showed a decrease in median grain size and a change in grain-size distribution consistent with the flaking off of thin layers from the biochar surface. Biochar grain size distribution changed from unimodal to bimodal, with lower peaks and wider distributions. For plant biochars the median grain size decreased by up to 45.8% and the grain aspect ratio increased by up to 22.4% after 20 F-T cycles. F-T cycling did not change the grain size or aspect ratio of sewage waste biochar. We also observed changes in the skeletal density of biochars (maximum increase of 1.3%), envelope density (maximum decrease of 12.2%), and intraporosity (porosity inside particles, maximum increase of 3.2%). In the drained experiment, mesquite biochar exhibited a decrease of median grain size (up to 4.2%) and no change of aspect ratio after 10 F-T cycles. We also document a positive relationship between grain size decrease and initial water content, suggesting that, biochar properties that increase water content, like high intraporosity and pore connectivity large intrapores, and hydrophilicity, combined with undrained conditions and frequent F-T cycles may increase biochar breakdown. The observed changes in biochar particle size and shape can be expected to alter hydrologic properties, and thus may impact both plant growth and the hydrologic cycle.
[Mh] Termos MeSH primário: Carvão Vegetal/química
Solo/química
[Mh] Termos MeSH secundário: Ecossistema
Congelamento
Hidrologia
Tamanho da Partícula
Pinus
Poaceae
Porosidade
Prosopis
Esgotos
Temperatura Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Sewage); 0 (Soil); 0 (biochar); 16291-96-6 (Charcoal)
[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:180113
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191246


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[PMID]:29185665
[Au] Autor:Dudley BD; Hughes RF; Ostertag R
[Ti] Título:Groundwater availability mediates the ecosystem effects of an invasion of Prosopis pallida.
[So] Source:Ecol Appl;24(8):1954-71, 2014.
[Is] ISSN:1051-0761
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Groundwater levels in arid environments are dropping worldwide due to human extraction, and precipitation events are predicted to become rarer and more intense in many arid areas with global climate change. These changes will likely alter both primary productivity and plant­soil nutrient cycles. To better understand the nature of such alterations, we examined effects of groundwater availability on plant­soil nitrogen (N) cycling in areas invaded by the N-fixing phreatophyte, Prosopis pallida, on the dry leeward coast of Hawai'i Island. Our aims were to quantify effects of groundwater availability to P. pallida on rates of litterfall N inputs and accretion in soils and to quantify effects of groundwater availability on N mineralization and leaching rates of inorganic N under natural rainfall conditions and simulated rain events. Stem water δ18O values indicate that P. pallida trees in lowland plots accessed shallow groundwater, while in upland plots they relied solely on rainfall. During drought periods, P. pallida at upland plots experienced water stress, evidenced by lower stem water potentials, higher water-use efficiency, and lower predawn photosynthetic performance than at lowland plots. Prosopis pallida basal area was 5.3 times greater at lowland plots, and these plots exhibited 17 times higher carbon (C), 24 times higher N, and 35 times higher phosphorus (P) additions via litterfall, indicating that productivity of this phreatophyte was decoupled from rainfall where groundwater was present. Total N mass in soils was 4.7 times greater where groundwater was accessible, supporting the case that groundwater access increased N2 fixation at a stand level. In contrast, N mineralization and leaching losses from soils, though substantially greater in lowland relative to upland areas, were strongly controlled by rainfall. Results provide clear examples of how invasive species with particular functional attributes (i.e., N-fixing phreatophytes) exploit otherwise inaccessible resources to dramatically alter the functioning of the systems they invade and how anthropogenic changes to hydrological processes can also alter ecosystem-level impacts of biological invasions. Results also illustrate a mechanism by which regional groundwater drawdown may reduce soil nutrient accretion and availability in arid regions.
[Mh] Termos MeSH primário: Biodiversidade
Água Subterrânea
Espécies Introduzidas
Prosopis/fisiologia
[Mh] Termos MeSH secundário: Hawaii
Densidade Demográfica
Fatores de Tempo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171221
[Lr] Data última revisão:
171221
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171201
[St] Status:MEDLINE


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[PMID]:28433594
[Au] Autor:Zafari S; Sharifi M; Mur LAJ; Chashmi NA
[Ad] Endereço:Department of Plant Biology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
[Ti] Título:Favouring NO over H O production will increase Pb tolerance in Prosopis farcta via altered primary metabolism.
[So] Source:Ecotoxicol Environ Saf;142:293-302, 2017 Aug.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Reactive oxygen species (ROS) and nitric oxide (NO) are known in triggering defense functions to detoxify heavy metal stresses. To investigate the relevance of ROS production, Pb treatment (400µM) alone and in combination with 400µM sodium ascorbate (Asc: as H O scavenger) were given to hydroponically grown Prosopis farcta seedlings over a time course of 72h. Data presented here indicate that, the low extent of H O due to scavenging by ascorbate, together with high level of NO improved Pb+Asc- treated Prosopis growth. Following the evoked potential of both the signals, significant increases in phenolic acids; caffeic, ferulic and salicylic acid were observed with Pb treatment; which are consistent with observed increase in lignin content and consequently with growth inhibition. In contrast, Pb+Asc treatment induced more flavonoids (quercetin, kaempferol, luteolin), diminished phenolic acids contents and also lignin. Elicited expression rate of phenylalanine ammonia-lyase gene (PAL) and also its enzymatic activity verified the induced phenylpropanoid metabolism by Pb and Pb+Asc treatments. In comparison with Pb stress, Asc+Pb application induced the high expression of arginine decarboxylase gene (ADC), in polyamines biosynthesis pathway, and conducted the N flow towards polyamines and γ-amino butyric acid (GABA). Examining the impact on enzyme activities, catalase, and guaiacol peroxidase; Pb+Asc reduced activity but this increased ascorbate peroxidase, and aconitase activity. Our observations are consistent with conditions favouring NO production and reduced H O can improve Pb tolerance via wide-ranging effects on a primary metabolic network.
[Mh] Termos MeSH primário: Peróxido de Hidrogênio/metabolismo
Chumbo/toxicidade
Metaboloma/efeitos dos fármacos
Óxido Nítrico/metabolismo
Prosopis/metabolismo
Poluentes do Solo/toxicidade
[Mh] Termos MeSH secundário: Ascorbato Peroxidases/metabolismo
Ácido Ascórbico/metabolismo
Ácido Ascórbico/farmacologia
Catalase/metabolismo
Flavonoides/metabolismo
Hidroxibenzoatos/metabolismo
Peroxidase/metabolismo
Fenilalanina Amônia-Liase/metabolismo
Prosopis/efeitos dos fármacos
Espécies Reativas de Oxigênio/metabolismo
Plântulas/efeitos dos fármacos
Plântulas/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Flavonoids); 0 (Hydroxybenzoates); 0 (Reactive Oxygen Species); 0 (Soil Pollutants); 29656-58-4 (phenolic acid); 2P299V784P (Lead); 31C4KY9ESH (Nitric Oxide); BBX060AN9V (Hydrogen Peroxide); EC 1.11.1.- (guaiacol peroxidase); EC 1.11.1.11 (Ascorbate Peroxidases); EC 1.11.1.6 (Catalase); EC 1.11.1.7 (Peroxidase); EC 4.3.1.24 (Phenylalanine Ammonia-Lyase); PQ6CK8PD0R (Ascorbic Acid)
[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:170424
[St] Status:MEDLINE


  4 / 204 MEDLINE  
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[PMID]:28362988
[Au] Autor:Michel-Lopez C; Zapata-Pérez O; González-Mendoza D; Grimaldo-Juarez O; Ceceña-Duran C; Tzintzun-Camacho O
[Ad] Endereço:Instituto de Ciencias Agrícolas de la Universidad Autónoma de Baja California, Ejido Nuevo León, Baja California, México.
[Ti] Título:Expression of metallothionein type 2 and 3 genes in Prosopis glandulosa leaves treated with copper.
[So] Source:Genet Mol Res;16(1), 2017 Mar 16.
[Is] ISSN:1676-5680
[Cp] País de publicação:Brazil
[La] Idioma:eng
[Ab] Resumo:For a better understanding of the strategies that are used by Prosopis glandulosa in heavy metal tolerance, the present study evaluated the gene expression of three metallothioneins (MTs; PgMt2-1, PgMt2, and PgMt3) in plants exposed to sub-lethal concentrations of copper. The PgMt2-1, PgMt2, and PgMt3 sequences were homologous to the MT type 2 (isoform 1), Mt2, and Mt3 sequences of other plant species found in GenBank. A reverse transcriptase-polymerase chain reaction showed that treatment with 100 mM Cu induced a significant increase in PgMt2 and PgMt3 expression during the first 4 h of exposure compared to that of PgMt2-1. However, after 8 h of exposure, the expression levels of PgMt2 and PgMt3 were significantly lower than those of PgMt2-1. PgMt transcript levels only increased significantly during the first hour after exposure to copper, suggesting that PgMts could play a key role in the plant's detoxification mechanism. However, additional studies are required to confirm MTs as a mechanism of heavy metal tolerance and accumulation in this species.
[Mh] Termos MeSH primário: Cobre/toxicidade
Metalotioneína/genética
Prosopis/efeitos dos fármacos
[Mh] Termos MeSH secundário: Adaptação Fisiológica
Regulação da Expressão Gênica de Plantas/efeitos dos fármacos
Folhas de Planta/efeitos dos fármacos
Folhas de Planta/genética
Proteínas de Plantas/genética
Prosopis/genética
Fatores de Tempo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Proteins); 789U1901C5 (Copper); 9038-94-2 (Metallothionein)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170406
[Lr] Data última revisão:
170406
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170401
[St] Status:MEDLINE
[do] DOI:10.4238/gmr16019490


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[PMID]:28327455
[Au] Autor:Chandrasekaran A; Ramachandran S; Subbiah S
[Ad] Endereço:Anna University, Institute for Energy Studies, Department of Mechanical Engineering, Chennai, Tamil Nadu 600025, India.
[Ti] Título:Determination of kinetic parameters in the pyrolysis operation and thermal behavior of Prosopis juliflora using thermogravimetric analysis.
[So] Source:Bioresour Technol;233:413-422, 2017 Jun.
[Is] ISSN:1873-2976
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:This paper deals with the pyrolysis of Prosopis juliflora fuelwood using thermogravimetric analysis to determine the kinetic parameters at six different heating rates of 2, 5, 10, 15, 20 and 25°C/min. The activation energy of pyrolysis was calculated using different methods, namely Kissinger, Kissinger-Akahira-Sunose, Ozawa-Flynn-Wall and Friedman model and corresponding calculated activation energy were found to be 164.6, 204, 203.2, and 219.3kJ/mol, respectively for each method. The three-pseudo component model was applied to calculate the following three kinetic parameters: activation energy, pre-exponential factor and order of reaction. The experimental results were validated with model prediction for all the six heating rates. The three-pseudo component model is able to predict experimental results much accurately while considering variable order reaction model (n≠1).
[Mh] Termos MeSH primário: Prosopis
Termogravimetria
[Mh] Termos MeSH secundário: Biomassa
Calefação
Cinética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170605
[Lr] Data última revisão:
170605
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170323
[St] Status:MEDLINE


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[PMID]:28214590
[Au] Autor:Jinu U; Gomathi M; Saiqa I; Geetha N; Benelli G; Venkatachalam P
[Ad] Endereço:Plant Genetic Engineering and Molecular Biology Lab, Department of Biotechnology, Periyar University, Periyar Palkalai Nagar, Salem-11, TN, India.
[Ti] Título:Green engineered biomolecule-capped silver and copper nanohybrids using Prosopis cineraria leaf extract: Enhanced antibacterial activity against microbial pathogens of public health relevance and cytotoxicity on human breast cancer cells (MCF-7).
[So] Source:Microb Pathog;105:86-95, 2017 Apr.
[Is] ISSN:1096-1208
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:This research focused on green engineering and characterization of silver (PcAgNPs) and copper nanoparticles (PcCuNPs) using Prosopis cineraria (Pc) leaf extract prepared by using microwave irradiation. We studied their enhanced antimicrobial activity on human pathogens as well as cytotoxicity on breast cancer cells (MCF-7). Biofabricated silver and copper nanoparticles exhibited UV-Visible absorbance peaks at 420 nm and 575 nm, confirming the bioreduction and stabilization of nanoparticles. Nanoparticles were characterized by FTIR, XRD, FESEM, and EDX analysis. FTIR results indicated the presence of alcohols, alkanes, aromatics, phenols, ethers, benzene, amines and amides that were possibly involved in the reduction and capping of silver and copper ions. XRD analysis was performed to confirm the crystalline nature of the silver and copper nanoparticles. FESEM analysis suggested that the nanoparticles were hexagonal or spherical in shape with size ranging from 20 to 44.49 nm and 18.9-32.09 nm for AgNPs and CuNPs, respectively. EDX analysis confirmed the presence of silver and copper elemental signals in the nanoparticles. The bioengineered silver and copper nanohybrids showed enhanced antimicrobial activity against Gram-positive and Gram-negative MDR human pathogens. MTT assay results indicated that CuNPs show potential cytotoxic effect followed by AgNPs against MCF-7 cancer cell line. IC were 65.27 µg/ml, 37.02 µg/ml and 197.3 µg/ml for PcAgNPs, PcCuNPs and P. cineraria leaf extracts, respectively, treated MCF-7 cells. The present investigation highlighted an effective protocol for microwave-assisted synthesis of biomolecule-loaded silver and copper nanoparticles with enhanced antibacterial and anticancer activity. Results strongly suggested that bioengineered AgNPs and CuNPs could be used as potential tools against microbial pathogens and cancer cells.
[Mh] Termos MeSH primário: Antibacterianos/metabolismo
Antineoplásicos/metabolismo
Cobre/metabolismo
Química Verde
Nanoestruturas/química
Extratos Vegetais/metabolismo
Prata/metabolismo
[Mh] Termos MeSH secundário: Linhagem Celular Tumoral
Sobrevivência Celular/efeitos dos fármacos
Feminino
Bactérias Gram-Negativas/efeitos dos fármacos
Bactérias Gram-Positivas/efeitos dos fármacos
Seres Humanos
Concentração Inibidora 50
Microscopia Eletrônica de Varredura
Micro-Ondas
Nanoestruturas/ultraestrutura
Extratos Vegetais/isolamento & purificação
Prosopis/química
Análise Espectral
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Bacterial Agents); 0 (Antineoplastic Agents); 0 (Plant Extracts); 3M4G523W1G (Silver); 789U1901C5 (Copper)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170417
[Lr] Data última revisão:
170417
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170220
[St] Status:MEDLINE


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[PMID]:28143832
[Au] Autor:Roser LG; Ferreyra LI; Ewens M; Vilardi JC; Saidman BO
[Ad] Endereço:Universidad de Buenos Aires, Consejo Nacional de lnvestigaciones Científicas y Técnicas, Instituto de Ecología, Genética y Evolución (IEGEBA), Facultad de Ciencias Exactas y Naturales, Departamento Ecología, Genética y Evolución, Genética de Especies Leñosas (GEEL), 1428, Buenos Aires, Argentina lea
[Ti] Título:Isolation by distance and stochastic migration in a fragmented population of .
[So] Source:Am J Bot;104(2):313-321, 2017 Feb.
[Is] ISSN:1537-2197
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:PREMISE OF THE STUDY: Gene flow through dispersal of seeds and pollen is a fundamental determinant of spatial genetic structure (SGS) in natural populations of trees at different spatial scales. Within continuous populations, restrictions to gene flow should be manifested in a process of local genetic differentiation, known as isolation by distance. The present work examines the SGS of a population in a patchy region where urban, forest, and agricultural areas coexist. The analysis discussed here expands our knowledge about the processes affecting the distribution of the genetic variability in populations of disturbed landscapes. METHODS: Three sites with different landscape and demographic characteristics were analyzed. Seven highly variable microsatellite markers were used to survey the relevance of both isolation by distance and stochastic migration in the SGS of the population. KEY RESULTS: The analyses showed that (1) the genetic similarity declined with increasing geographic distance, (2) the population may be conceived as a single genetically continuous unit showing spatial differentiation as consequence of isolation by distance, rather than a structured population following the island model, and (3) there is evidence supporting a past immigration event into one of the study sites, which promoted a local pattern of genetic structure. CONCLUSIONS: These results indicate that in spite of the population fragmentation produced by land-use changes, maintains the genetic cohesion and a continuous genetic structure in the analyzed area.
[Mh] Termos MeSH primário: Fluxo Gênico
Variação Genética
Prosopis/genética
Processos Estocásticos
[Mh] Termos MeSH secundário: Argentina
Ecossistema
Frequência do Gene
Genética Populacional
Geografia
Repetições de Microssatélites
Pólen/genética
Dinâmica Populacional
Prosopis/crescimento & desenvolvimento
Isolamento Reprodutivo
Dispersão de Sementes/genética
Análise de Sequência de DNA
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170815
[Lr] Data última revisão:
170815
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170202
[St] Status:MEDLINE
[do] DOI:10.3732/ajb.1600221


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[PMID]:27757749
[Au] Autor:de Jesus Pereira TC; Pereira ML; Moreira JV; Azevêdo JA; Batista R; de Paula VF; Oliveira BS; de Jesus Dos Santos E
[Ad] Endereço:Department of Animal and Rural Technology, State University of Southwest Bahia, BR 415, Km 03, s/n, 45, Itapetinga, BA, 45.700-000, Brazil. taiala.pereira@hotmail.com.
[Ti] Título:Effects of alkaloid extracts of mesquite pod on the products of in vitro rumen fermentation.
[So] Source:Environ Sci Pollut Res Int;24(5):4301-4311, 2017 Feb.
[Is] ISSN:1614-7499
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:The objective of this study was to evaluate the effects of alkaloid extracts of Prosopis juliflora (Sw.) D.C. pods obtained by two extraction methods as compared with sodium monensin on the gas production kinetic, mitigation of methane, and rumen fermentation products using wheat bran or Tifton 85 hay as substrates, by the semi-automatic in vitro gas production technique. A completely randomized design was adopted, and two natural additives were tested made from mesquite pod (alkaloid extract I and alkaloid extract II) at three levels (3.9, 7.9, and 12 µg), sodium monensin 5 µM (positive control), and no inclusion of additives (negative control). The volume of gases produced by the degradation of the fibrous fraction of wheat bran was influenced by the concentration of the extract I added to the medium, and the amounts of 7.9 and 12 µg were equal to monensin at the lowest value. The degradation rate of the fibrous carbohydrates with additive extract I at 12 µg was lower in relation to monensin. When Tifton 85 hay was utilized, alkaloid extract I provided a shorter colonization time as compared with monensin at the added amounts of 7.9 and 12 µg and higher production of gases from the fibrous fraction but without interfering with the total volume of gases produced during 96 h of fermentation of carbohydrates. In the periods of 12 and 24 h of incubation, utilizing alkaloid extract I, the mean values of methane production with wheat bran and Tifton 85 hay were lower than monensin (p < 0.05) when the respective amounts of 7.9 and 12 µg were added. Alkaloid extract I has similar potential to sodium in reducing production of total gases, methane, and the acetate/propionate ratio.
[Mh] Termos MeSH primário: Fermentação
Prosopis/química
Rúmen/efeitos dos fármacos
[Mh] Termos MeSH secundário: Alcaloides
Animais
Metano/metabolismo
Monensin/metabolismo
Rúmen/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Alkaloids); 906O0YJ6ZP (Monensin); OP0UW79H66 (Methane)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:171104
[Lr] Data última revisão:
171104
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161021
[St] Status:MEDLINE
[do] DOI:10.1007/s11356-016-7761-3


  9 / 204 MEDLINE  
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Texto completo SciELO Brasil
[PMID]:27382996
[Au] Autor:Cuéllar-Rodríguez G; Jurado E; Flores J
[Ad] Endereço:Facultad de Ciencias Forestales, Universidad Autónoma de Nuevo León, Linares, NL, México.
[Ti] Título:Beetle diversity in fragmented thornscrub and isolated trees.
[So] Source:Braz J Biol;77(1):92-96, 2017 Mar.
[Is] ISSN:1678-4375
[Cp] País de publicação:Brazil
[La] Idioma:eng
[Ab] Resumo:Due to land use change mainly for induced agriculture, Tamaulipan thornscrubin northeast Mexico has been cleared and transformed into small patches of vegetation as small as isolated trees surrounded by agricultural fields. In this study, we explored how tree isolation or growing inside a fragment of remnant vegetation influence diversity of coleopterans in two plant species (Prosopis laevigata (Humb. &Bonpl.exWilld.) M.C. Johnst. (mesquite) and Ebenopsis ebano (Berl.) Barneby (Texas ebony). We found 72 coleopteran morphospecies; fifteen occurred mainly in remnant fragments and ten mainly in isolated trees. There were more insects under isolated mesquites than under those immersed in remnant fragments, while in Texas ebony the highest beetle density for isolated trees coincided with periods of bean and maize in surrounding agriculture.
[Mh] Termos MeSH primário: Biodiversidade
Coleópteros
Fabaceae
Prosopis
Árvores
[Mh] Termos MeSH secundário: Agricultura
Animais
México
Texas
Zea mays
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1704
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160708
[St] Status:MEDLINE


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[PMID]:27428369
[Au] Autor:Llanes A; Arbona V; Gómez-Cadenas A; Luna V
[Ad] Endereço:Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Laboratorio de Fisiología Vegetal, Departamento de Ciencias Naturales, Universidad Nacional de Río Cuarto, Route 36 Km. 601, CP X5804BYA, Río Cuarto, Córdoba, Argentina. Electronic address: allanes@exa.unrc.edu.ar.
[Ti] Título:Metabolomic profiling of the halophyte Prosopis strombulifera shows sodium salt- specific response.
[So] Source:Plant Physiol Biochem;108:145-157, 2016 Nov.
[Is] ISSN:1873-2690
[Cp] País de publicação:France
[La] Idioma:eng
[Ab] Resumo:Primary and secondary metabolite profiles were analyzed in roots and leaves of the halophytic shrub Prosopis strombulifera in response to control plants (no salt added in the growing media) and to lowering the osmotic potential to -1.0, -1.9, and -2.6 MPa generated by NaCl, Na SO , and the iso-osmotic combination of them at 24 h after reaching such potential. A rapid production of metabolites in response to sodium salt was found, which was correlated with modifications in growth parameters. Analysis of polar metabolite profiles by GC-MS rendered a total of 108 significantly altered compounds including 18 amino acids, 19 secondary metabolites, 23 carbohydrates, 13 organic acids, 4 indole acids, among others. Primary metabolites showed a differential response under the salt treatments, which was dependent on salt type and concentration, organ and age of plants. Most of identified compounds showed the strongest accumulation at the highest salt concentration assayed for Na SO -treated plants, which was correlated with damaging effects of sulfate anion on plant growth. Roots of NaCl-treated plants showed a higher number of altered metabolites (analyzed by UPLC-ESI-QqTOF-MS) compared to other treatments, while leaves of Na SO -treated plants showed the highest number of altered signals. A low degree of overlapping between secondary metabolites altered in roots and leaves of NaCl and Na SO -treated plants was found. However, when both NaCl and Na SO salts were present plants always showed a lower number of altered metabolites. Three compounds were tentatively identified: tryptophan, lysophosphatidylcoline and 13-hydroxyoctadecadienoic acid. Increasing knowledge on P. strombulifera metabolism will contribute to unravel the underlying biochemical mechanism of salt tolerance.
[Mh] Termos MeSH primário: Metabolômica/métodos
Prosopis/metabolismo
Plantas Tolerantes a Sal/metabolismo
Cloreto de Sódio/farmacologia
[Mh] Termos MeSH secundário: Metabolismo dos Carboidratos
Metaboloma
Osmose
Folhas de Planta/efeitos dos fármacos
Folhas de Planta/metabolismo
Raízes de Plantas/efeitos dos fármacos
Raízes de Plantas/metabolismo
Prosopis/efeitos dos fármacos
Prosopis/crescimento & desenvolvimento
Tolerância a Sal
Plantas Tolerantes a Sal/crescimento & desenvolvimento
Sulfatos/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Sulfates); 0YPR65R21J (sodium sulfate); 451W47IQ8X (Sodium Chloride)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170813
[Lr] Data última revisão:
170813
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160719
[St] Status:MEDLINE



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