Base de dados : MEDLINE
Pesquisa : B01.650.940.800.150.150 [Categoria DeCS]
Referências encontradas : 28 [refinar]
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  1 / 28 MEDLINE  
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[PMID]:28704433
[Au] Autor:Romero-Alvarez D; Escobar LE; Varela S; Larkin DJ; Phelps NBD
[Ad] Endereço:Hospital General Enrique Garcés, Unidad de Epidemiología, Quito, Ecuador.
[Ti] Título:Forecasting distributions of an aquatic invasive species (Nitellopsis obtusa) under future climate scenarios.
[So] Source:PLoS One;12(7):e0180930, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Starry stonewort (Nitellopsis obtusa) is an alga that has emerged as an aquatic invasive species of concern in the United States. Where established, starry stonewort can interfere with recreational uses of water bodies and potentially have ecological impacts. Incipient invasion of starry stonewort in Minnesota provides an opportunity to predict future expansion in order to target early detection and strategic management. We used ecological niche models to identify suitable areas for starry stonewort in Minnesota based on global occurrence records and present-day and future climate conditions. We assessed sensitivity of forecasts to different parameters, using four emission scenarios (i.e., RCP 2.6, RCP 4.5, RCP 6, and RCP 8.5) from five future climate models (i.e., CCSM, GISS, IPSL, MIROC, and MRI). From our niche model analyses, we found that (i) occurrences from the entire range, instead of occurrences restricted to the invaded range, provide more informed models; (ii) default settings in Maxent did not provide the best model; (iii) the model calibration area and its background samples impact model performance; (iv) model projections to future climate conditions should be restricted to analogous environments; and (v) forecasts in future climate conditions should include different future climate models and model calibration areas to better capture uncertainty in forecasts. Under present climate, the most suitable areas for starry stonewort are predicted to be found in central and southeastern Minnesota. In the future, suitable areas for starry stonewort are predicted to shift in geographic range under some future climate models and to shrink under others, with most permutations indicating a net decrease of the species' suitable range. Our suitability maps can serve to design short-term plans for surveillance and education, while future climate models suggest a plausible reduction of starry stonewort spread in the long-term if the trends in climate warming remain.
[Mh] Termos MeSH primário: Caráceas/crescimento & desenvolvimento
[Mh] Termos MeSH secundário: Mudança Climática
Ecossistema
Espécies Introduzidas
Minnesota
Modelos Biológicos
Previsões Demográficas
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170922
[Lr] Data última revisão:
170922
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170714
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0180930


  2 / 28 MEDLINE  
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[PMID]:27638176
[Au] Autor:Kataev A; Zherelova O; Grishchenko V
[Ad] Endereço:Institute of Cell Biophysics of the RAS, Institutskaya 3, Pushchino, Moscow Region, 142290, Russia.
[Ti] Título:A Characeae Cells Plasma Membrane as a Model for Selection of Bioactive Compounds and Drugs: Interaction of HAMLET-Like Complexes with Ion Channels of Chara corallina Cells Plasmalemma.
[So] Source:J Membr Biol;249(6):801-811, 2016 12.
[Is] ISSN:1432-1424
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Interaction of a HAMLET-like La-OA cytotoxic complex (human α-lactalbumin-oleic acid) and its constituents with the excitable plasmalemma of giant Chara corallina cells was investigated. The voltage-clamp technique was used to study Ca and Cl transient currents in the plasmalemma of intact cells. The action of the complex and OA on the target cell membrane has a dose-dependent character. It was found that the La-OA complex has an inhibiting effect on Ca current across the plasmalemma, while α-lactalbumin alone does not affect the electrophysiological characteristics of the cellular membrane. However, oleic acid blocks Ca current across the plasmalemma. This is accompanied by the induction of a non-selective conductivity in the cellular membrane, a decrease in the resting potential and plasma membrane resistance of algal cells. We propose that the cytotoxicity of La-OA and other HAMLET-like complexes is determined by oleic acid acting as a blocker of potential-dependent Ca channels in the plasma membrane of target cells. The presented results show that the study model of green algae C. corallina cells plasmalemma is a convenient tool for the investigation of ion channels in many animal cells.
[Mh] Termos MeSH primário: Membrana Celular/efeitos dos fármacos
Membrana Celular/metabolismo
Caráceas/citologia
Caráceas/metabolismo
Descoberta de Drogas
Células de Lugar/metabolismo
[Mh] Termos MeSH secundário: Descoberta de Drogas/métodos
Fenômenos Eletrofisiológicos/efeitos dos fármacos
Seres Humanos
Ativação do Canal Iônico/efeitos dos fármacos
Canais Iônicos/metabolismo
Lactalbumina/metabolismo
Potenciais da Membrana/efeitos dos fármacos
Ácido Oleico/farmacologia
Ácidos Oleicos/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (HAMLET complex, human); 0 (Ion Channels); 0 (Oleic Acids); 2UMI9U37CP (Oleic Acid); 9013-90-5 (Lactalbumin)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:171109
[Lr] Data última revisão:
171109
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160918
[St] Status:MEDLINE


  3 / 28 MEDLINE  
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[PMID]:26875181
[Au] Autor:Kisnieriene V; Lapeikaite I; Sevriukova O; Ruksenas O
[Ad] Endereço:Department of Neurobiology and Biophysics, Faculty of Natural Science, Vilnius University, M. K. Ciurlionio 21/27, 03101, Vilnius, Lithuania. vilma.kisnieriene@gf.vu.lt.
[Ti] Título:The effects of Ni(2+) on electrical signaling of Nitellopsis obtusa cells.
[So] Source:J Plant Res;129(3):551-8, 2016 May.
[Is] ISSN:1618-0860
[Cp] País de publicação:Japan
[La] Idioma:eng
[Ab] Resumo:The effect of nickel (Ni) on the generation of plant bioelectrical signals was evaluated in Nitellopsis obtusa, a Characean model organism. Conventional glass-microelectrode technique and K(+)-anaesthesia method in current-clamp and voltage-clamp modes were used for the measurement and analysis of electrical parameters. Ni(2+) treatment rapidly influenced the action potential (AP) parameters namely, excitation threshold, AP peak and duration, membrane potential at various voltages and dynamics of ion currents. We conclude that altered electrical signaling pathway in the test organism constituted the early target for Ni toxicity imposition. The observed Ni interference could be ascribed to disturbed [Ca(2+)]cyt content, impaired Cl(-) and K(+) channels activity resulting in decreased excitability and repolarization rate in generated AP.
[Mh] Termos MeSH primário: Caráceas/fisiologia
Fenômenos Eletrofisiológicos/efeitos dos fármacos
Níquel/farmacologia
[Mh] Termos MeSH secundário: Potenciais de Ação/efeitos dos fármacos
Potenciais de Ação/efeitos da radiação
Caráceas/efeitos dos fármacos
Caráceas/efeitos da radiação
Cloretos/metabolismo
Fenômenos Eletrofisiológicos/efeitos da radiação
Luz
Bombas de Próton/metabolismo
Soluções
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Chlorides); 0 (Proton Pumps); 0 (Solutions); 7OV03QG267 (Nickel)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:171014
[Lr] Data última revisão:
171014
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160215
[St] Status:MEDLINE
[do] DOI:10.1007/s10265-016-0794-3


  4 / 28 MEDLINE  
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[PMID]:25981779
[Au] Autor:Hasenstein KH
[Ad] Endereço:Department of Biology, University of Louisiana, 42451, Lafayette, LA, 70504, USA, hasenstein@louisiana.edu.
[Ti] Título:Use of high gradient magnetic fields to evaluate gravity perception and response mechanisms in plants and algae.
[So] Source:Methods Mol Biol;1309:227-37, 2015.
[Is] ISSN:1940-6029
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Magnetic gradients have the valuable property of exerting a repulsive ponderomotive force onto diamagnetic compounds. A carefully designed gradient and proper positioning of biological material can be used to manipulate gravisensing organelles such as amyloplasts of higher plants and other statoliths such as the BaSO4-filled vesicles of Characean algae. This chapter describes the main considerations of magnetic gradients and their application as a localized force field to manipulate (sort) cellular organelles based on their magnetic properties. Many of the inferences from such activities have yet to be investigated.
[Mh] Termos MeSH primário: Caráceas/crescimento & desenvolvimento
Sensação Gravitacional
Campos Magnéticos
Plastídeos/efeitos da radiação
[Mh] Termos MeSH secundário: Actinas/metabolismo
Sulfato de Bário/farmacologia
Caráceas/efeitos dos fármacos
Caráceas/efeitos da radiação
Plastídeos/efeitos dos fármacos
Plastídeos/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
0 (Actins); 25BB7EKE2E (Barium Sulfate)
[Em] Mês de entrada:1602
[Cu] Atualização por classe:150518
[Lr] Data última revisão:
150518
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150519
[St] Status:MEDLINE
[do] DOI:10.1007/978-1-4939-2697-8_17


  5 / 28 MEDLINE  
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[PMID]:25639563
[Au] Autor:Hoepflinger MC; Geretschlaeger A; Sommer A; Hoeftberger M; Hametner C; Ueda T; Foissner I
[Ad] Endereço:Department of Cell Biology/Plant Physiology, University of Salzburg, Hellbrunnerstrasse 34, 5020, Salzburg, Austria.
[Ti] Título:Molecular Analysis and Localization of CaARA7 a Conventional RAB5 GTPase from Characean Algae.
[So] Source:Traffic;16(5):534-54, 2015 May.
[Is] ISSN:1600-0854
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:RAB5 GTPases are important regulators of endosomal membrane traffic. Among them Arabidopsis thaliana ARA7/RABF2b is highly conserved and homologues are present in fungal, animal and plant kingdoms. In land plants ARA7 and its homologues are involved in endocytosis and transport towards the vacuole. Here we report on the isolation of an ARA7 homologue (CaARA7/CaRABF2) in the highly evolved characean green alga Chara australis. It encodes a polypeptide of 202 amino acids with a calculated molecular mass of 22.2 kDa and intrinsic GTPase activity. Immunolabelling of internodal cells with a specific antibody reveals CaARA7 epitopes at multivesicular endosomes (MVEs) and at MVE-containing wortmannin (WM) compartments. When transiently expressed in epidermal cells of Nicotiana benthamiana leaves, fluorescently tagged CaARA7 localizes to small organelles (putative MVEs) and WM compartments, and partially colocalizes with AtARA7 and CaARA6, a plant specific RABF1 GTPase. Mutations in membrane anchoring and GTP binding sites alter localization of CaARA7 and affect GTPase activity, respectively. This first detailed study of a conventional RAB5 GTPase in green algae demonstrates that CaARA7 is similar to RAB5 GTPases from land plants and other organisms and shows conserved structure and localization.
[Mh] Termos MeSH primário: Proteínas de Algas/metabolismo
Proteínas de Arabidopsis/metabolismo
Arabidopsis/enzimologia
Caráceas/enzimologia
Proteínas rab de Ligação ao GTP/metabolismo
Proteínas rab5 de Ligação ao GTP/metabolismo
[Mh] Termos MeSH secundário: Proteínas de Algas/genética
Sequência de Aminoácidos
Arabidopsis/genética
Proteínas de Arabidopsis/genética
Caráceas/genética
Eletroforese em Gel de Poliacrilamida
Dados de Sequência Molecular
Filogenia
Folhas de Planta/enzimologia
Folhas de Planta/genética
Mutação Puntual
Alinhamento de Sequência
Homologia de Sequência de Aminoácidos
Proteínas rab de Ligação ao GTP/genética
Proteínas rab5 de Ligação ao GTP/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Algal Proteins); 0 (Arabidopsis Proteins); EC 3.6.1.- (Ara7 protein, Arabidopsis); EC 3.6.5.2 (rab GTP-Binding Proteins); EC 3.6.5.2 (rab5 GTP-Binding Proteins)
[Em] Mês de entrada:1602
[Cu] Atualização por classe:170922
[Lr] Data última revisão:
170922
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150203
[St] Status:MEDLINE
[do] DOI:10.1111/tra.12267


  6 / 28 MEDLINE  
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[PMID]:24858694
[Au] Autor:Sevriukova O; Kanapeckaite A; Lapeikaite I; Kisnieriene V; Ladygiene R; Sakalauskas V
[Ad] Endereço:Department of Neurobiology and Biophysics, Faculty of Natural Science, Vilnius University, LT-03101 Vilnius, Lithuania; Department of Expertise and Exposure Monitoring, Radiation Protection Centre Under Ministry of Health, LT-08221 Vilnius, Lithuania. Electronic address: olga.sevriukova@gmail.com.
[Ti] Título:Charophyte electrogenesis as a biomarker for assessing the risk from low-dose ionizing radiation to a single plant cell.
[So] Source:J Environ Radioact;136:10-5, 2014 Oct.
[Is] ISSN:1879-1700
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The impact of low-dose ionizing radiation on the electrical signalling pattern and membrane properties of the characea Nitellopsis obtusa was examined using conventional glass-microelectrode and voltage-clamp techniques. The giant cell was exposed to a ubiquitous radionuclide of high biological importance - tritium - for low-dose irradiation. Tritium was applied as tritiated water with an activity concentration of 15 kBq L(-1) (an external dose rate that is approximately 0.05 µGy h(-1) above the background radiation level); experiments indicated that this was the lowest effective concentration. Investigating the dynamics of electrical excitation of the plasma membrane (action potential) showed that exposing Characeae to tritium for half an hour prolonged the repolarization phase of the action potential by approximately 35%: the repolarization rate decreased from 39.2 ± 3.1 mV s(-1) to 25.5 ± 1,8 mV s(-1) due to tritium. Voltage-clamp measurements showed that the tritium exposure decreased the Cl(-) efflux and Ca(2+) influx involved in generating an action potential by approximately 27% (Δ = 12.4 ± 1.1 µA cm(-2)) and 64% (Δ = -5.3 ± 0.4 µA cm(-2)), respectively. The measured alterations in the action potential dynamics and in the chloride and calcium ion transport due to the exogenous low-dose tritium exposure provide the basis for predicting possible further impairments of plasma membrane regulatory functions, which subsequently disturb essential physiological processes of the plant cell.
[Mh] Termos MeSH primário: Caráceas/efeitos da radiação
Fenômenos Eletrofisiológicos/efeitos da radiação
Radiação Ionizante
Trítio/toxicidade
[Mh] Termos MeSH secundário: Biomarcadores
Caráceas/fisiologia
Relação Dose-Resposta à Radiação
Células Vegetais/efeitos da radiação
Medição de Risco
Água/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biomarkers); 059QF0KO0R (Water); 10028-17-8 (Tritium)
[Em] Mês de entrada:1504
[Cu] Atualização por classe:151119
[Lr] Data última revisão:
151119
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:140527
[St] Status:MEDLINE


  7 / 28 MEDLINE  
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[PMID]:23299331
[Au] Autor:Lazár D; Murch SJ; Beilby MJ; Al Khazaaly S
[Ad] Endereço:Department of Biophysics; Centre of the Region Haná for Biotechnological and Agricultural Research; Faculty of Science; Palacký University; Olomouc, Czech Republic.
[Ti] Título:Exogenous melatonin affects photosynthesis in characeae Chara australis.
[So] Source:Plant Signal Behav;8(3):e23279, 2013 Mar.
[Is] ISSN:1559-2324
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Melatonin was found in the fresh water characeae Chara australis. The concentrations (~4 µg/g of tissue) were similar in photosynthesizing cells, independent of their position on the plant and rhizoids (roots) without chloroplasts. Exogenous melatonin, added at 10 µM to the artificial pond water, increased quantum yield of photochemistry of photosystem II by 34%. The increased efficiency appears to be due to the amount of open reaction centers of photosystem II, rather than increased efficiency of each reaction center. More open reaction centers reflect better functionality of all photosynthetic transport chain constituents. We suggest that melatonin protection against reactive oxygen species covers not only chlorophyll, but also photosynthetic proteins in general.
[Mh] Termos MeSH primário: Antioxidantes/metabolismo
Chara/metabolismo
Transporte de Elétrons
Complexos de Proteínas Captadores de Luz/metabolismo
Melatonina/metabolismo
Fotossíntese
Complexo de Proteína do Fotossistema II/metabolismo
[Mh] Termos MeSH secundário: Antioxidantes/farmacologia
Chara/efeitos dos fármacos
Caráceas
Clorofila/metabolismo
Cloroplastos
Transporte de Elétrons/efeitos dos fármacos
Melatonina/farmacologia
Fotossíntese/efeitos dos fármacos
Espécies Reativas de Oxigênio/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Antioxidants); 0 (Light-Harvesting Protein Complexes); 0 (Photosystem II Protein Complex); 0 (Reactive Oxygen Species); 1406-65-1 (Chlorophyll); JL5DK93RCL (Melatonin)
[Em] Mês de entrada:1406
[Cu] Atualização por classe:170220
[Lr] Data última revisão:
170220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:130110
[St] Status:MEDLINE


  8 / 28 MEDLINE  
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Texto completo SciELO Brasil
[PMID]:22499261
[Au] Autor:Utida G; Petri S; Oliveira EC; Boggiani PC
[Ad] Endereço:Programa de Pós-graduação em Geoquímica e Geotectônica, Instituto de Geociências, Universidade de São Paulo, Brasil. giselleutida@hotmail.com
[Ti] Título:Microfossils in micrites from Serra da Bodoquena (MS), Brazil: taxonomy and paleoenvironmental implications.
[So] Source:An Acad Bras Cienc;84(2):245-62, 2012 Jun.
[Is] ISSN:1678-2690
[Cp] País de publicação:Brazil
[La] Idioma:eng
[Ab] Resumo:Microfossils present in Quaternary micrites from Serra da Bodoquena, Mato Grosso do Sul State, Brazil, are here described for the first time. The studied taxa are: a) ostracods: Candona sp., Candonopsis sp., Cyclocypris sp., Cypria sp., Cypridopsis sp., Notodromas sp., Ilyocypris sp., Cyprideis sp., Wolburgiopsis cf. chinamuertensis (Musacchio 1970), Darwinula sp. and 5 morphotypes; b) microgastropod Acrobis sp., and c) Characeae remains and gyrogonites Chara sp.. The presence of these microfossils suggests clear-water shallow lacustrine paleoenvironments and the presence of aquatic vegetation. Similarities between microfossils and the living taxa suggest possible Holocene ages for these deposits, which is in accordance with previous C(14) dates.
[Mh] Termos MeSH primário: Caráceas
Crustáceos
Fósseis
Gastrópodes
Sedimentos Geológicos/análise
Paleontologia
[Mh] Termos MeSH secundário: Animais
Brasil
Meio Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1211
[Cu] Atualização por classe:120601
[Lr] Data última revisão:
120601
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:120414
[St] Status:MEDLINE


  9 / 28 MEDLINE  
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[PMID]:21460412
[Au] Autor:Kurtyka R; Burdach Z; Karcz W
[Ad] Endereço:Department of Plant Physiology, Faculty of Biology and Environmental Protection, University of Silesia, ul. Jagiellonska 28, 40 032 Katowice, Poland. renata.kurtyka@us.edu.pl
[Ti] Título:Effect of cadmium and lead on the membrane potential and photoelectric reaction of Nitellopsis obtusa cells.
[So] Source:Gen Physiol Biophys;30(1):52-8, 2011 Mar.
[Is] ISSN:0231-5882
[Cp] País de publicação:Slovakia
[La] Idioma:eng
[Ab] Resumo:The effects of Cd and Pb on membrane potential (E(m)) and photoelectric reaction of Nitellopsis obtusa cells were investigated. It was found that Cd and Pb at 1.0 mM caused a depolarization of the E(m), whereas both metals at lower concentrations changed the E(m) in a different way. Pb at 0.1 mM and 0.01 mM hyperpolarized the E(m), whereas Cd at the same concentrations depolarized and did not change the E(m), respectively. In the presence of 0.01 mM Pb, the light-induced hyperpolarization of the E(m) was by 18% higher as compared to the control, whereas at 1.0 mM Pb it was by 40% lower. Pb at 0.1 mM and Cd at 0.01 mM or 5 × 0.01 mM did not change the light-induced membrane hyperpolarization. However, in the presence of Cd at 0.1 mM and 1.0 mM this hyperpolarization was 2-fold lower or was completely abolished, respectively. These results suggest that at high Cd and Pb concentrations both depolarization of the E(m) and decrease of light-induced membrane hyperpolarization in Nitellopsis obtusa cells are probably due to inhibition of the plasma membrane H(+)-ATPase activity, whereas both metals at lower concentrations differ in mechanism of membrane potential changes.
[Mh] Termos MeSH primário: Cádmio/toxicidade
Clorófitas/efeitos dos fármacos
Chumbo/toxicidade
Potenciais da Membrana/efeitos dos fármacos
ATPases Translocadoras de Prótons/antagonistas & inibidores
[Mh] Termos MeSH secundário: Membrana Celular/efeitos dos fármacos
Caráceas/efeitos dos fármacos
Caráceas/metabolismo
Clorófitas/metabolismo
Metais/toxicidade
ATPases Translocadoras de Prótons/efeitos dos fármacos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Metals); 00BH33GNGH (Cadmium); 2P299V784P (Lead); EC 3.6.3.14 (Proton-Translocating ATPases)
[Em] Mês de entrada:1105
[Cu] Atualização por classe:131121
[Lr] Data última revisão:
131121
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:110405
[St] Status:MEDLINE
[do] DOI:10.4149/gpb_2011_01_52


  10 / 28 MEDLINE  
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[PMID]:21146195
[Au] Autor:Melamed Y; Kislev M; Weiss E; Simchoni O
[Ad] Endereço:The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel. yomelamed@gmail.com
[Ti] Título:Extinction of water plants in the Hula Valley: Evidence for climate change.
[So] Source:J Hum Evol;60(4):320-7, 2011 Apr.
[Is] ISSN:1095-8606
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:We describe two events of water plant extinction in the Hula Valley, northern Israel: the ancient, natural extinction of 3 out of 14 extinct species at Gesher Benot Ya'aqov, which occurred some 800-700 k.yr., and an anthropogenic, near contemporary extinction of seven species in the artificial drainage of the Hula Lake in the 1950s. We conclude that the considerable fraction of water plants that disappeared from the Hula Valley in the Early-Middle Pleistocene was the result of habitat desiccation and not global warming. Thus, there is evidence that the hominins who lived in the Hula Valley inhabited a comparatively dry place. The disappearance of water plant species was partially the result of reduced seed dispersal by birds (ornitochory) as a result of the shrinkage of water bodies and their number along the Rift Valley. We suggest that the disappearance of a group of rare, local water plants can be used as an indicator of climate drying and impacts on the local vegetation.
[Mh] Termos MeSH primário: Caráceas/crescimento & desenvolvimento
Mudança Climática
Extinção Biológica
Gleiquênias/crescimento & desenvolvimento
Fósseis
Magnoliopsida/crescimento & desenvolvimento
[Mh] Termos MeSH secundário: Organismos Aquáticos/crescimento & desenvolvimento
Arqueologia
Evolução Biológica
Dessecação
Meio Ambiente
Atividades Humanas
Seres Humanos
Israel
Paleontologia
Dispersão de Sementes
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1107
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:101215
[St] Status:MEDLINE
[do] DOI:10.1016/j.jhevol.2010.07.025



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