Base de dados : MEDLINE
Pesquisa : B01.650.940.800.575.912.250.859.937.437.316 [Categoria DeCS]
Referências encontradas : 19 [refinar]
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  1 / 19 MEDLINE  
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[PMID]:28745519
[Au] Autor:Gonçalves RS; Silva EL; Hioka N; Nakamura CV; Bruschi ML; Caetano W
[Ad] Endereço:a Department of Chemistry , State University of Maringá , Maringá , Brazil.
[Ti] Título:An optimized protocol for anthraquinones isolation from Rhamnus frangula L.
[So] Source:Nat Prod Res;32(3):366-369, 2018 Feb.
[Is] ISSN:1478-6427
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Different from works described in the literature, which use expansive analytical methods to separation of anthraquinones derivatives (AQs), this communication reported a simple and inexpensive methodology to get them. In this way, the expensive commercial AQs: Chrysophanol, physcione and emodine were extracted from plant material (Rhamnus frangula L.) and isolated by classical column chromatography technique under optimised binary mobile phase gradients (CHCl : AcOEt(a), a = 1 to 5%) in excellent yields.
[Mh] Termos MeSH primário: Antraquinonas/isolamento & purificação
Frangula/química
Rhamnus/química
[Mh] Termos MeSH secundário: Antraquinonas/análise
Cromatografia/métodos
Emodina/análogos & derivados
Emodina/análise
Emodina/isolamento & purificação
Métodos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anthraquinones); H6PT94IV61 (physcione); KA46RNI6HN (Emodin); N1ST8V8RR2 (chrysophanic acid)
[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:170727
[St] Status:MEDLINE
[do] DOI:10.1080/14786419.2017.1356836


  2 / 19 MEDLINE  
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[PMID]:27539599
[Au] Autor:De Kort H; Mergeay J; Jacquemyn H; Honnay O
[Ad] Endereço:Plant Conservation and Population Biology, Biology Department, University of Leuven, Kasteelpark Arenberg 31, B-3001 Heverlee, Belgium Station d'Ecologie Théorique et Expérimentale du CNRS, Centre National de la Recherche Scientifique, 2 Route du CNRS, FR-09200 Moulis, France hanne.dekort@bio.kuleuv
[Ti] Título:Transatlantic invasion routes and adaptive potential in North American populations of the invasive glossy buckthorn, Frangula alnus.
[So] Source:Ann Bot;118(6):1089-1099, 2016 Nov.
[Is] ISSN:1095-8290
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND AND AIMS: Many invasive species severely threaten native biodiversity and ecosystem functioning. One of the most prominent questions in invasion genetics is how invasive populations can overcome genetic founder effects to establish stable populations after colonization of new habitats. High native genetic diversity and multiple introductions are expected to increase genetic diversity and adaptive potential in the invasive range. Our aim was to identify the European source populations of Frangula alnus (glossy buckthorn), an ornamental and highly invasive woody species that was deliberately introduced into North America at the end of the 18th century. A second aim of this study was to assess the adaptive potential as an explanation for the invasion success of this species. METHODS: Using a set of annotated single-nucleotide polymorphisms (SNPs) that were assigned a putative function based on sequence comparison with model species, a total of 38 native European and 21 invasive North American populations were subjected to distance-based structure and assignment analyses combined with population genomic tools. Genetic diversity at SNPs with ecologically relevant functions was considered as a proxy for adaptive potential. KEY RESULTS: Patterns of invasion coincided with early modern transatlantic trading routes. Multiple introductions through transatlantic trade from a limited number of European port regions to American urban areas led to the establishment of bridgehead populations with high allelic richness and expected heterozygosity, allowing continuous secondary migration to natural areas. CONCLUSIONS: Targeted eradication of the urban populations, where the highest genetic diversity and adaptive potential were observed, offers a promising strategy to arrest further invasion of native American prairies and forests.
[Mh] Termos MeSH primário: Frangula
Espécies Introduzidas
[Mh] Termos MeSH secundário: Adaptação Biológica/genética
Ecologia
Frangula/genética
Variação Genética
Espécies Introduzidas/estatística & dados numéricos
América do Norte
Polimorfismo de Nucleotídeo Único/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:171101
[Lr] Data última revisão:
171101
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160820
[St] Status:MEDLINE


  3 / 19 MEDLINE  
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[PMID]:26399165
[Au] Autor:Brkanac SR; Geric M; Gajski G; Vujcic V; Garaj-Vrhovac V; Kremer D; Domijan AM
[Ad] Endereço:Department of Biology, Faculty of Science, University of Zagreb, Rooseveltov Trg 6, 10000 Zagreb, Croatia.
[Ti] Título:Toxicity and antioxidant capacity of Frangula alnus Mill. bark and its active component emodin.
[So] Source:Regul Toxicol Pharmacol;73(3):923-9, 2015 Dec.
[Is] ISSN:1096-0295
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:In the present study toxicity of Frangula alnus Mill. bark, widely used as laxative, was investigated. Human peripheral blood lymphocytes (HPBLs) were treated with F. alnus bark extract or emodin (emodin is bark component with laxative property), and cytotoxicity, genotoxicity and parameters of oxidative stress were assessed. Also, polyphenol content of bark extract and antioxidant activity of the extract and emodin measured by DPPH, ABTS and FRAP methods were examined. The bark extract (500 µg/ml) produced cell death and DNA damage, while level of ROS changed at 250 µg/ml. Emodin induced cell death and DNA damage at 150 µg/ml and 200 µg/ml, respectively, and the increase of ROS was observed at 25 µg/ml. These results suggest that both, bark extract and emodin, are cyto/genotoxic to HPBLs and that oxidative stress is involved in the mechanism of their toxicity. The results on antioxidant activity showed that, unlike emodin, bark extract possess moderate antioxidant capacity (44.6%, 46.8% and 2.25 mmol Fe(2+)/g measured by DPPH, ABTS and FRAP assay, respectively) that can be related to relatively high phenolic content (116.07 mg/g). However, due to toxicological properties use of F. alnus bark as well as emodin-containing preparations should be taken with caution.
[Mh] Termos MeSH primário: Antioxidantes/farmacologia
Emodina/farmacologia
Frangula/química
Laxantes/farmacologia
Linfócitos/efeitos dos fármacos
Fenóis/farmacologia
Extratos Vegetais/farmacologia
[Mh] Termos MeSH secundário: Antioxidantes/isolamento & purificação
Antioxidantes/toxicidade
Morte Celular/efeitos dos fármacos
Ensaio Cometa
Dano ao DNA
Relação Dose-Resposta a Droga
Emodina/isolamento & purificação
Emodina/toxicidade
Frangula/toxicidade
Seres Humanos
Laxantes/isolamento & purificação
Laxantes/toxicidade
Linfócitos/metabolismo
Linfócitos/patologia
Estresse Oxidativo/efeitos dos fármacos
Fenóis/isolamento & purificação
Fenóis/toxicidade
Fitoterapia
Casca de Planta
Extratos Vegetais/isolamento & purificação
Extratos Vegetais/toxicidade
Plantas Medicinais
Espécies Reativas de Oxigênio/metabolismo
Medição de Risco
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antioxidants); 0 (Laxatives); 0 (Phenols); 0 (Plant Extracts); 0 (Reactive Oxygen Species); KA46RNI6HN (Emodin)
[Em] Mês de entrada:1610
[Cu] Atualização por classe:161230
[Lr] Data última revisão:
161230
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150925
[St] Status:MEDLINE


  4 / 19 MEDLINE  
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[PMID]:26350278
[Au] Autor:Malmir M; Curica C; Gomes ET; Serrano R; Silva O
[Ad] Endereço:Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy,Universidade de Lisboa,Av. Professor Gama Pinto,1649-003 Lisbon,Portugal.
[Ti] Título:Contribution of Light and Electron Microscopy to Identification of Bark from Frangula azorica, an Azorean Medicinal Plant.
[So] Source:Microsc Microanal;21(5):1296-303, 2015 Oct.
[Is] ISSN:1435-8115
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Frangula azorica V. Grubow is a Macaronesian flora medicinal plant, endemic from Azores islands and inscribed on the International Union for the Conservation of Nature (IUCN) Red List of Threatened Species. This species, known as "sanguinho," belongs to the family Rhamnaceae, the same as Frangula alnus Mill. and Frangula purshiana (DC.) J. G. Cooper, two widely used official laxative herbal medicines of the western Pharmacopoeias constituted by the dried barks of each species. Morphological and chemical studies on F. azorica dried bark are scarce although it is potentially recognized as a Portuguese laxative herbal medicine. Macroscopically, the bark occurs in quills or nearly flat pieces. A channeled external surface with transversely elongated lenticels is characteristic. When the outer phellem layer is removed, a bright purple inner phellem layer is disclosed. Light and electron microscopy observations revealed flattened phellem cells with slightly thickened walls, cortical parenchyma with secretory ducts and groups of sclereids, phloem with groups of fibers and sheaths of parenchymatous cells containing druses or more frequently prismatic crystals of calcium oxalate, and parenchymatous medullary rays one to three cells wide with spherical starch grains. Observation of these botanical characteristics must be included in quality monographs of F. azorica bark herbal medicine.
[Mh] Termos MeSH primário: Frangula/anatomia & histologia
Microscopia/métodos
Casca de Planta/anatomia & histologia
Plantas Medicinais/anatomia & histologia
[Mh] Termos MeSH secundário: Açores
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1607
[Cu] Atualização por classe:151002
[Lr] Data última revisão:
151002
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150910
[St] Status:MEDLINE
[do] DOI:10.1017/S1431927615014944


  5 / 19 MEDLINE  
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[PMID]:25944466
[Au] Autor:De Kort H; Vandepitte K; Mergeay J; Mijnsbrugge KV; Honnay O
[Ad] Endereço:Biology Department, University of Leuven, Plant Conservation and Population Biology, Kasteelpark Arenberg 31, Heverlee, Belgium.
[Ti] Título:The population genomic signature of environmental selection in the widespread insect-pollinated tree species Frangula alnus at different geographical scales.
[So] Source:Heredity (Edinb);115(5):415-25, 2015 Nov.
[Is] ISSN:1365-2540
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The evaluation of the molecular signatures of selection in species lacking an available closely related reference genome remains challenging, yet it may provide valuable fundamental insights into the capacity of populations to respond to environmental cues. We screened 25 native populations of the tree species Frangula alnus subsp. alnus (Rhamnaceae), covering three different geographical scales, for 183 annotated single-nucleotide polymorphisms (SNPs). Standard population genomic outlier screens were combined with individual-based and multivariate landscape genomic approaches to examine the strength of selection relative to neutral processes in shaping genomic variation, and to identify the main environmental agents driving selection. Our results demonstrate a more distinct signature of selection with increasing geographical distance, as indicated by the proportion of SNPs (i) showing exceptional patterns of genetic diversity and differentiation (outliers) and (ii) associated with climate. Both temperature and precipitation have an important role as selective agents in shaping adaptive genomic differentiation in F. alnus subsp. alnus, although their relative importance differed among spatial scales. At the 'intermediate' and 'regional' scales, where limited genetic clustering and high population diversity were observed, some indications of natural selection may suggest a major role for gene flow in safeguarding adaptability. High genetic diversity at loci under selection in particular, indicated considerable adaptive potential, which may nevertheless be compromised by the combined effects of climate change and habitat fragmentation.
[Mh] Termos MeSH primário: Frangula/genética
Genética Populacional
Seleção Genética
[Mh] Termos MeSH secundário: Adaptação Biológica/genética
Animais
Teorema de Bayes
Clima
Europa (Continente)
Variação Genética
Genoma de Planta
Genômica
Genótipo
Geografia
Insetos
Polinização
Polimorfismo de Nucleotídeo Único
Análise de Sequência de DNA
Árvores/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1604
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150507
[St] Status:MEDLINE
[do] DOI:10.1038/hdy.2015.41


  6 / 19 MEDLINE  
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[PMID]:25314182
[Au] Autor:Grilo I; Torres-Gómez J; Gómez-Regife L
[Ad] Endereço:Digestive Diseases Department, Hospital de Alta Resolución de Écija, APS Bajo Guadalquivir, Sevilla, Spain.
[Ti] Título:Atypical melanosis coli resembling the appearance of cheetah skin.
[So] Source:Endoscopy;46 Suppl 1 UCTN:E437-8, 2014.
[Is] ISSN:1438-8812
[Cp] País de publicação:Germany
[La] Idioma:eng
[Mh] Termos MeSH primário: Doenças do Ceco/patologia
Doenças do Colo/patologia
Constipação Intestinal/tratamento farmacológico
Fitoterapia
Transtornos da Pigmentação/patologia
Preparações de Plantas/efeitos adversos
[Mh] Termos MeSH secundário: Aloe
Doenças do Ceco/etiologia
Doenças do Colo/etiologia
Colonoscopia
Feminino
Frangula
Seres Humanos
Meia-Idade
Transtornos da Pigmentação/etiologia
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Preparations)
[Em] Mês de entrada:1507
[Cu] Atualização por classe:141015
[Lr] Data última revisão:
141015
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:141015
[St] Status:MEDLINE
[do] DOI:10.1055/s-0034-1377427


  7 / 19 MEDLINE  
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[PMID]:25105975
[Au] Autor:Smith MS; Fridley JD; Goebel M; Bauerle TL
[Ad] Endereço:Department of Horticulture, Cornell University, 134A Plant Science Building, Ithaca, New York, United States of America.
[Ti] Título:Links between belowground and aboveground resource-related traits reveal species growth strategies that promote invasive advantages.
[So] Source:PLoS One;9(8):e104189, 2014.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Belowground processes are rarely considered in comparison studies of native verses invasive species. We examined relationships between belowground fine root production and lifespan, leaf phenology, and seasonal nitrogen dynamics of Lonicera japonica (non-native) versus L. sempervirens (native) and Frangula alnus (non-native) versus Rhamnus alnifolia (native), over time. First and second order fine roots were monitored from 2010 to 2012 using minirhizotron technology and rhizotron windows. 15N uptake of fine roots was measured across spring and fall seasons. Significant differences in fine root production across seasons were seen between Lonicera species, but not between Frangula and Rhamnus, with both groups having notable asynchrony in regards to the timing of leaf production. Root order and the number of root neighbors at the time of root death were the strongest predictors of root lifespan of both species pairs. Seasonal 15N uptake was higher in spring than in the fall, which did not support the need for higher root activity to correspond with extended leaf phenology. We found higher spring 15N uptake in non-native L. japonica compared to native L. sempervirens, although there was no difference in 15N uptake between Frangula and Rhamnus species. Our findings indicate the potential for fast-growing non-native Lonicera japonica and Frangula alnus to outcompete native counterparts through differences in biomass allocation, root turnover, and nitrogen uptake, however evidence that this is a general strategy of invader dominance is limited.
[Mh] Termos MeSH primário: Adaptação Biológica/fisiologia
Frangula/fisiologia
Espécies Introduzidas
Lonicera/fisiologia
Raízes de Plantas/crescimento & desenvolvimento
Rhamnus/fisiologia
Estações do Ano
[Mh] Termos MeSH secundário: Frangula/metabolismo
Lonicera/metabolismo
Isótopos de Nitrogênio/farmacocinética
Folhas de Planta/crescimento & desenvolvimento
Raízes de Plantas/metabolismo
Rhamnus/metabolismo
Especificidade da Espécie
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Nitrogen Isotopes)
[Em] Mês de entrada:1504
[Cu] Atualização por classe:170220
[Lr] Data última revisão:
170220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:140809
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0104189


  8 / 19 MEDLINE  
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[PMID]:24649485
[Au] Autor:Sadowska B; Paszkiewicz M; Podsedek A; Redzynia M; Rózalska B
[Ad] Endereço:Department of Infectious Biology, Faculty of Biology and Environmental Protection, University of Lodz, Lódz, Poland.
[Ti] Título:Vaccinium myrtillus leaves and Frangula alnus bark derived extracts as potential antistaphylococcal agents.
[So] Source:Acta Biochim Pol;61(1):163-9, 2014.
[Is] ISSN:1734-154X
[Cp] País de publicação:Poland
[La] Idioma:eng
[Ab] Resumo:Due to constantly increasing antibiotic resistance of pathogens and participation of the biofilms they make in various types of infections, a development of alternative therapeutic strategies becomes an urgent need. Taking advantage of the biological activity of plant-derived compounds can solve this problem. In this study antimicrobial, including those synergistic with classic antibiotics, and cytotoxic properties of newly-obtained extracts from Vaccinium myrtillus leaves (VLE) and Frangula alnus bark (FBE) were evaluated. Both tested extracts exhibited relevant antistaphylococcal activity (MIC range 0.75-1.5 mg/mL) accompanied by a relativly low cytotoxic effect on mammalian cells (BI > 1). Phytochemical analysis of the extracts tested showed a high total content of phenolic compounds with the predominance of hydroxycinnamic acids in VLE and hydroxybenzoic acids and flavanols in FBE. Widely described in the literature antimicrobial properties of phenolics were probably connected with the biological activity of the extracts tested. We also report that the presence of VLE or FBE at sub-MIC concentrations enhances biocidal potential of vancomycin and linezolid. Therefore, we are considering a possibility of an alternative therapy for local infections caused by S. aureus by combining classic antibiotics with plant-derived extracts.
[Mh] Termos MeSH primário: Frangula/química
Extratos Vegetais/administração & dosagem
Staphylococcus aureus/efeitos dos fármacos
Vaccinium myrtillus/química
[Mh] Termos MeSH secundário: Anti-Infecciosos/administração & dosagem
Anti-Infecciosos/química
Seres Humanos
Testes de Sensibilidade Microbiana
Casca de Planta/química
Extratos Vegetais/química
Folhas de Planta/química
Infecções Estafilocócicas/tratamento farmacológico
Staphylococcus aureus/patogenicidade
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Anti-Infective Agents); 0 (Plant Extracts)
[Em] Mês de entrada:1411
[Cu] Atualização por classe:140402
[Lr] Data última revisão:
140402
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:140321
[St] Status:MEDLINE


  9 / 19 MEDLINE  
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[PMID]:24577585
[Au] Autor:Forrer HR; Musa T; Schwab F; Jenny E; Bucheli TD; Wettstein FE; Vogelgsang S
[Ad] Endereço:Agroscope, Institute for Sustainability Sciences, Reckenholzstrasse 191, 8046 Zurich, Switzerland. hans-rudolf.forrer@agroscope.admin.ch.
[Ti] Título:Fusarium head blight control and prevention of mycotoxin contamination in wheat with botanicals and tannic acid.
[So] Source:Toxins (Basel);6(3):830-49, 2014 Feb 26.
[Is] ISSN:2072-6651
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:Suspensions or solutions with 1% of Chinese galls (Galla chinensis, GC) or 1% of tannic acid (TA), inhibited germination of conidia or mycelium growth of Fusarium graminearum (FG) by 98%-100% or by 75%-80%, respectively, whereas dried bark from buckthorn (Frangula alnus, FA) showed no effect at this concentration. In climate chamber experiments where the wheat variety "Apogee" was artificially inoculated with FG and F. crookwellense (FCr) and treated with 5% suspensions of TA, GC and FA, the deoxynivalenol (DON) content in grains was reduced by 81%, 67% and 33%, respectively. In field experiments with two commercial wheat varieties and artificial or semi-natural inoculations, mean DON reductions of 66% (TA) and 58% (FA), respectively, were obtained. Antifungal toxicity can explain the high efficacies of TA and GC but not those of FA. The Fusarium head blight (FHB) and mycotoxin reducing effect of FA is probably due to elicitation of resistance in wheat plants. With semi-natural inoculation, a single FA application in the first half of the flowering period performed best. However, we assume that applications of FA at the end of ear emergence and a treatment, triggered by an infection period, with TA or GC during flowering, might perform better than synthetic fungicides.
[Mh] Termos MeSH primário: Antifúngicos/farmacologia
Fusarium/efeitos dos fármacos
Doenças das Plantas/prevenção & controle
Extratos Vegetais/farmacologia
Taninos/farmacologia
Triticum/microbiologia
[Mh] Termos MeSH secundário: Frangula
Fusarium/crescimento & desenvolvimento
Fusarium/metabolismo
Micotoxinas/metabolismo
Casca de Planta
Doenças das Plantas/microbiologia
Tumores de Planta
Rheum
Esporos Fúngicos/efeitos dos fármacos
Esporos Fúngicos/crescimento & desenvolvimento
Esporos Fúngicos/metabolismo
Tricotecenos/metabolismo
Triticum/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antifungal Agents); 0 (Mycotoxins); 0 (Plant Extracts); 0 (Tannins); 0 (Trichothecenes); 5WOP02RM1U (nivalenol); JT37HYP23V (deoxynivalenol)
[Em] Mês de entrada:1410
[Cu] Atualização por classe:170220
[Lr] Data última revisão:
170220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:140301
[St] Status:MEDLINE
[do] DOI:10.3390/toxins6030830


  10 / 19 MEDLINE  
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[PMID]:23066651
[Au] Autor:Lönnberg K; Eriksson O
[Ad] Endereço:Department of Botany, Stockholm University, Stockholm, Sweden. karin.lonnberg@botan.su.se
[Ti] Título:Relationships between intra-specific variation in seed size and recruitment in four species in two contrasting habitats.
[So] Source:Plant Biol (Stuttg);15(3):601-6, 2013 May.
[Is] ISSN:1438-8677
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Large seeds contain more stored resources, and seedlings germinating from large seeds generally cope better with environmental stresses such as shading, competition and thick litter layers, than seedlings germinating from small seeds. A pattern with small-seeded species being associated with open habitats and large-seeded species being associated with closed (shaded) habitats has been suggested and supported by comparative studies. However, few studies have assessed the intra-specific relationship between seed size and recruitment, comparing plant communities differing in canopy cover. Here, seeds from four plant species commonly occurring in ecotones between open and closed habitats (Convallaria majalis, Frangula alnus, Prunus padus and Prunus spinosa) were weighed and sown individually (3200 seeds per species) in open and closed-canopy sites, and seedling emergence and survival recorded over 3 years. Our results show a generally positive, albeit weak, relationship between seed size and recruitment. In only one of the species, C. majalis, was there an association between closed canopy habitat and a positive seed size effect on recruitment. We conclude that there is a weak selection gradient favouring larger seeds, but that this selection gradient is not clearly related to habitat.
[Mh] Termos MeSH primário: Convallaria/anatomia & histologia
Frangula/anatomia & histologia
Prunus/anatomia & histologia
Sementes/anatomia & histologia
Sementes/fisiologia
[Mh] Termos MeSH secundário: Convallaria/fisiologia
Ecossistema
Frangula/fisiologia
Prunus/fisiologia
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1309
[Cu] Atualização por classe:130411
[Lr] Data última revisão:
130411
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:121017
[St] Status:MEDLINE
[do] DOI:10.1111/j.1438-8677.2012.00676.x



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