Base de dados : MEDLINE
Pesquisa : G01.154.767 [Categoria DeCS]
Referências encontradas : 500 [refinar]
Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 50 ir para página                         

  1 / 500 MEDLINE  
              next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29258563
[Au] Autor:Treitler JT; Drissen T; Stadtmann R; Zerbe S; Mantilla-Contreras J
[Ad] Endereço:RG Ecology and Environmental Education, Institute of Biology and Chemistry, University of Hildesheim, Universitätsplatz 1, 31141, Hildesheim, Germany. treitler@uni-hildesheim.de.
[Ti] Título:Complementing endozoochorous seed dispersal patterns by donkeys and goats in a semi-natural island ecosystem.
[So] Source:BMC Ecol;17(1):42, 2017 Dec 19.
[Is] ISSN:1472-6785
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Endozoochory is, in grazing systems, a substantial vector for seed dispersal. It can play an important role in vegetation dynamics, especially in colonization processes through seed input on the vegetation and on the soil seed bank. We investigated the endozoochorous seed input of donkeys and goats on a semi-natural island ecosystem in the Mediterranean. Through germination experiments, we assessed the viable seed content of the dung of these grazing animals to estimate their suitability and efficiency for seed dispersal of the vegetation types of the island. RESULTS: We show different dispersal patterns of donkeys and goats. Goats disperse a high number of diaspores from shrubs while donkeys disperse more diaspores of grasses. In addition, goats disperse plants of greater growth height and donkeys plants of shorter height. These dispersal patterns are in accordance with the vegetation types of which donkeys and goats disperse indicator species. Both, donkeys and goats, feed on and disperse species of the vegetation types, open grassland and temporarily wet grassland. In addition, goats feed on and disperse diagnostic species of the semi-open maquis and preforest formations. CONCLUSIONS: Overall, our results show that donkeys and goats are complementing each other in their endozoochorous seed dispersal potential. This emphasizes the importance of both grazing animals for the vegetation dynamics of the semi-natural island ecosystem. Therefore, the adaption of the goat management to a traditional land management based on directed transhumance might maintain and enrich vegetation types.
[Mh] Termos MeSH primário: Equidae/fisiologia
Cabras/fisiologia
Herbivoria
Dispersão de Sementes
[Mh] Termos MeSH secundário: Animais
Ilhas
Itália
Estações do Ano
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE
[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:171221
[St] Status:MEDLINE
[do] DOI:10.1186/s12898-017-0148-6


  2 / 500 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29321529
[Au] Autor:Timóteo S; Correia M; Rodríguez-Echeverría S; Freitas H; Heleno R
[Ad] Endereço:CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456, Coimbra, Portugal. stimoteo@gmail.com.
[Ti] Título:Multilayer networks reveal the spatial structure of seed-dispersal interactions across the Great Rift landscapes.
[So] Source:Nat Commun;9(1):140, 2018 01 10.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Species interaction networks are traditionally explored as discrete entities with well-defined spatial borders, an oversimplification likely impairing their applicability. Using a multilayer network approach, explicitly accounting for inter-habitat connectivity, we investigate the spatial structure of seed-dispersal networks across the Gorongosa National Park, Mozambique. We show that the overall seed-dispersal network is composed by spatially explicit communities of dispersers spanning across habitats, functionally linking the landscape mosaic. Inter-habitat connectivity determines spatial structure, which cannot be accurately described with standard monolayer approaches either splitting or merging habitats. Multilayer modularity cannot be predicted by null models randomizing either interactions within each habitat or those linking habitats; however, as habitat connectivity increases, random processes become more important for overall structure. The importance of dispersers for the overall network structure is captured by multilayer versatility but not by standard metrics. Highly versatile species disperse many plant species across multiple habitats, being critical to landscape functional cohesion.
[Mh] Termos MeSH primário: Plantas/classificação
Dispersão de Sementes/fisiologia
Sementes/fisiologia
[Mh] Termos MeSH secundário: Animais
Aves
Demografia
Ecossistema
Fezes
Comportamento Alimentar
Mamíferos
Atividade Motora
Moçambique
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180202
[Lr] Data última revisão:
180202
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180112
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-017-02658-y


  3 / 500 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28961707
[Au] Autor:Worth JRP; Holland BR; Beeton NJ; Schönfeld B; Rossetto M; Vaillancourt RE; Jordan GJ
[Ad] Endereço:Forestry and Forest Products Research Institute, Matsunosato 1, Tsukuba, Ibaraki 305-8687, Japan.
[Ti] Título:Habitat type and dispersal mode underlie the capacity for plant migration across an intermittent seaway.
[So] Source:Ann Bot;120(4):539-549, 2017 Oct 17.
[Is] ISSN:1095-8290
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Background and Aims: Investigating species distributions across geographic barriers is a commonly utilized method in biogeography to help understand the functional traits that allow plants to disperse successfully. Here the biogeographic pattern analysis approach is extended by using chloroplast DNA whole-genome 'mining' to examine the functional traits that have impacted the dispersal of widespread temperate forest species across an intermittent seaway, the 200 km wide Bass Strait of south-eastern Australia. Methods: Multiple, co-distributed species of both dry and wet forests were sampled from five regions on either side of the Strait to obtain insights into past dispersal of these biomes via seed. Using a next-generation sequencing-based pool-seq method, the sharing of single nucleotide polymorphisms (SNPs) was estimated between all five regions in the chloroplast genome. Key Results: A total of 3335 SNPs were detected in 20 species. SNP sharing patterns between regions provided evidence for significant seed-mediated gene flow across the study area, including across Bass Strait. A higher proportion of shared SNPs in dry forest species, especially those dispersed by birds, compared with wet forest species suggests that dry forest species have undergone greater seed-mediated gene flow across the study region during past climatic oscillations and sea level changes associated with the interglacial/glacial cycles. Conclusions: This finding is consistent with a greater propensity for long-distance dispersal for species of open habitats and proxy evidence that expansive areas of dry vegetation occurred during times of exposure of Bass Strait during glacials. Overall, this study provides novel genetic evidence that habitat type and its interaction with dispersal traits are major influences on dispersal of plants.
[Mh] Termos MeSH primário: Dispersão de Sementes
[Mh] Termos MeSH secundário: DNA de Cloroplastos/genética
Ecossistema
Florestas
Genoma de Planta/genética
Oceanos e Mares
Polimorfismo de Nucleotídeo Único/genética
Dispersão de Sementes/fisiologia
Austrália do Sul
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Chloroplast)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171109
[Lr] Data última revisão:
171109
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170930
[St] Status:MEDLINE
[do] DOI:10.1093/aob/mcx086


  4 / 500 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28957402
[Au] Autor:Moran EV; Reid A; Levine JM
[Ad] Endereço:Life and Environmental Sciences, University of California Merced, Merced, CA, United States of America.
[Ti] Título:Population genetics and adaptation to climate along elevation gradients in invasive Solidago canadensis.
[So] Source:PLoS One;12(9):e0185539, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Gene flow between populations may either support local adaptation by supplying genetic variation on which selection may act, or counteract it if maladapted alleles arrive faster than can be purged by selection. Although both such effects have been documented within plant species' native ranges, how the balance of these forces influences local adaptation in invasive plant populations is less clear, in part because introduced species often have lower genetic variation initially but also tend to have good dispersal abilities. To evaluate the extent of gene flow and adaptation to local climate in invasive populations of Solidago canadensis, and the implications of this for range expansion, we compared population differentiation at microsatellite and chloroplast loci for populations across Switzerland and assessed the effect of environmental transfer distance using common gardens. We found that while patterns of differentiation at neutral genetic markers suggested that populations are connected through extensive pollen and seed movement, common-garden plants nonetheless exhibited modest adaptation to local climate conditions. Growth rate and flower production declined with climatic distance from a plant's home site, with clones from colder home sites performing better at or above the range limit. Such adaptation in invasive species is likely to promote further spread, particularly under climate change, as the genotypes positioned near the range edge may be best able to take advantage of lengthening growing seasons to expand the range.
[Mh] Termos MeSH primário: Adaptação Fisiológica/genética
Altitude
Clima
Espécies Introduzidas
Solidago/genética
[Mh] Termos MeSH secundário: Cloroplastos/genética
Flores/fisiologia
Variação Genética
Genética Populacional
Geografia
Haplótipos/genética
Repetições de Microssatélites/genética
Pólen/genética
Dispersão de Sementes/genética
Solidago/crescimento & desenvolvimento
Suíça
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171018
[Lr] Data última revisão:
171018
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170929
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0185539


  5 / 500 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28957365
[Au] Autor:Fraaije RGA; Moinier S; van Gogh I; Timmers R; van Deelen JJ; Verhoeven JTA; Soons MB
[Ad] Endereço:Ecology & Biodiversity Group, Institute of Environmental Biology, Utrecht University, Padualaan 8, CH Utrecht, the Netherlands.
[Ti] Título:Spatial patterns of water-dispersed seed deposition along stream riparian gradients.
[So] Source:PLoS One;12(9):e0185247, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Riparian ecosystems along streams naturally harbour a high plant diversity with many increasingly endangered species. In our current heavily modified and fragmented catchments, many of these species are sensitive to dispersal limitation. Better understanding of riparian plant dispersal pathways is required to predict species (re-)colonization potential and improve success rates of stream and riparian zone conservation and restoration. Dispersal by water (hydrochory) is an important mechanism for longitudinal and lateral dispersal of riparian species. Crucially for recruitment potential, it also influences the elevation along the riparian hydrological gradient where seeds become deposited. Due to the complex interplay between abiotic and biotic factors, however, it remains unclear how exactly patterns in seed deposition are formed. We compared hydrochorous and non-hydrochorous seed deposition, and quantified patterns of seed deposition along the bare substrate of newly created stream riparian gradients. Water levels were monitored and seed deposition was measured with seed traps along the full range of riparian hydrological conditions (from permanently flooded to never flooded). Average seed numbers and species richness were significantly higher in flooded than in non-flooded seed traps (5.7 and 1.5 times higher, respectively). Community-weighted trait means indicated that typically water-dispersed seeds were more dominant in flooded than in non-flooded seed traps and gradually decreased in concentration from the channel to the upland. Moreover, highly buoyant seeds accumulated at the average water line, and clear elevational sorting of non-buoyant seeds occurred within the floodplain. These results establish a critical role of flooding in shaping patterns of seed deposition along the riparian gradient, delivering many seeds of typical riparian species to riparian zones and depositing them at species-specific elevations as influenced by seed traits, suggesting species-specific dispersal pathways. This shows that hydrochory likely has important consequences for riparian vegetation development and that flooding forms a key process for successful restoration.
[Mh] Termos MeSH primário: Ecossistema
Rios
Dispersão de Sementes/fisiologia
Sementes/fisiologia
Água
[Mh] Termos MeSH secundário: Altitude
Inundações
Modelos Lineares
Estações do Ano
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
059QF0KO0R (Water)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171018
[Lr] Data última revisão:
171018
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170929
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0185247


  6 / 500 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28902860
[Au] Autor:Toral-Granda MV; Causton CE; Jäger H; Trueman M; Izurieta JC; Araujo E; Cruz M; Zander KK; Izurieta A; Garnett ST
[Ad] Endereço:Research Institute for the Environment and Livelihoods, Charles Darwin University, Casuarina, Northern Territory, Australia.
[Ti] Título:Alien species pathways to the Galapagos Islands, Ecuador.
[So] Source:PLoS One;12(9):e0184379, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Alien species, one of the biggest threats to natural ecosystems worldwide, are of particular concern for oceanic archipelagos such as Galápagos. To enable more effective management of alien species, we reviewed, collated and analysed all available records of alien species for Galápagos. We also assembled a comprehensive dataset on pathways to and among the Galápagos Islands, including tourist and resident numbers, tourist vessels, their itineraries and visitation sites, aircraft capacity and occupancy, air and sea cargo and biosecurity interceptions. So far, 1,579 alien terrestrial and marine species have been introduced to Galápagos by humans. Of these, 1,476 have become established. Almost half of these were intentional introductions, mostly of plants. Most unintentional introductions arrived on plants and plant associated material, followed by transport vehicles, and commodities (in particular fruit and vegetables). The number, frequency and geographic origin of pathways for the arrival and dispersal of alien species to and within Galápagos have increased over time, tracking closely the increase in human population (residents and tourists) on the islands. Intentional introductions of alien species should decline as biosecurity is strengthened but there is a danger that unintentional introductions will increase further as tourism on Galápagos expands. This unique world heritage site will only retain its biodiversity values if the pathways for invasion are managed effectively.
[Mh] Termos MeSH primário: Biodiversidade
Ecossistema
Espécies Introduzidas
Ilhas/epidemiologia
Viagem/estatística & dados numéricos
[Mh] Termos MeSH secundário: Aeronaves/estatística & dados numéricos
Animais
Equador/epidemiologia
Frutas
Seres Humanos
Espécies Introduzidas/estatística & dados numéricos
Espécies Introduzidas/tendências
Plantas
Dinâmica Populacional
Dispersão de Sementes
Navios/estatística & dados numéricos
Migrantes/estatística & dados numéricos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171031
[Lr] Data última revisão:
171031
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170914
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0184379


  7 / 500 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28877248
[Au] Autor:Oleksy R; Giuggioli L; McKetterick TJ; Racey PA; Jones G
[Ad] Endereço:School of Life Sciences, University of Bristol, Bristol, United Kingdom.
[Ti] Título:Flying foxes create extensive seed shadows and enhance germination success of pioneer plant species in deforested Madagascan landscapes.
[So] Source:PLoS One;12(9):e0184023, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Seed dispersal plays a significant role in forest regeneration and maintenance. Flying foxes are often posited as effective long-distance seed dispersers due to their large home ranges and ability to disperse seeds when flying. We evaluate the importance of the Madagascan flying fox Pteropus rufus in the maintenance and regeneration of forests in one of the world's priority conservation areas. We tested germination success of over 20,000 seeds from the figs Ficus polita, F. grevei and F. lutea extracted from bat faeces and ripe fruits under progressively more natural conditions, ranging from petri-dishes to outdoor environments. Seeds from all fig species showed increased germination success after passing through the bats' digestive tracts. Outside, germination success in F. polita was highest in faecal seeds grown under semi-shaded conditions, and seeds that passed through bats showed increased seedling establishment success. We used data from feeding trials and GPS tracking to construct seed shadow maps to visualize seed dispersal patterns. The models use Gaussian probability density functions to predict the likelihood of defecation events occurring after feeding. In captivity, bats had short gut retention times (often < 30 mins), but were sometimes able to retain seeds for over 24h. In the wild, bats travelled 3-5 km within 24-280 min after feeding, when defecation of ingested seeds is very likely. They produced extensive seed shadows (11 bats potentially dispersing seeds over 58,000 ha over 45 total days of tracking) when feeding on figs within their large foraging areas and dispersed the seeds in habitats that were often partially shaded and hence would facilitate germination up to 20 km from the feeding tree. Because figs are important pioneer species, P. rufus is an important dispersal vector that makes a vital contribution to the regeneration and maintenance of highly fragmented forest patches in Madagascar.
[Mh] Termos MeSH primário: Quirópteros
Germinação
Dispersão de Sementes
[Mh] Termos MeSH secundário: Animais
Conservação dos Recursos Naturais
Ecossistema
Fezes
Comportamento Alimentar
Feminino
Germinação/fisiologia
Madagáscar
Masculino
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171003
[Lr] Data última revisão:
171003
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170907
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0184023


  8 / 500 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Alves, Marccus
Texto completo
[PMID]:28611073
[Au] Autor:Gonçalves-Oliveira RC; Wöhrmann T; Benko-Iseppon AM; Krapp F; Alves M; Wanderley MDGL; Weising K
[Ad] Endereço:Universidade Federal de Pernambuco, Centro de Biociências, Departamento de Genética, Laboratório de Genética e Biotecnologia Vegetal, Av. Prof. Moraes Rego, 1235, CDU, 50.670-420, Recife, PE, Brazil rod.biogen@gmail.com.
[Ti] Título:Population genetic structure of the rock outcrop species (Bromeliaceae): The role of pollination vs. seed dispersal and evolutionary implications.
[So] Source:Am J Bot;104(6):868-878, 2017 Jun.
[Is] ISSN:1537-2197
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:PREMISE OF THE STUDY: Inselbergs are terrestrial, island-like rock outcrop environments that present a highly adapted flora. The epilithic bromeliad is a dominant species on inselbergs in the Caatinga of northeastern Brazil. We conducted a population genetic analysis to test whether the substantial phenotypic diversity of could be explained by limited gene flow among populations and to assess the relative impact of pollen vs. seed dispersal on the genetic structure of the species. METHODS: Nuclear and chloroplast microsatellite markers were used to genotype individuals from 20 rock outcrop locations, representing four geographic regions: northern Espinhaço Range, Borborema Plateau, southwestern Caatinga and southeastern Caatinga. -statistics, structure, and other tools were applied to evaluate the genetic makeup of populations. KEY RESULTS: Considerable levels of genetic diversity were revealed. Genetic structuring among populations was stronger on the plastid as compared with the nuclear level, indicating higher gene flow via bat pollination as compared with seed dispersal by wind. structure and AMOVA analyses of the nuclear data suggested a high genetic differentiation between two groups, one containing all populations from the southeastern Caatinga and the other one comprising all remaining samples. CONCLUSIONS: The strong genetic differentiation between southeastern Caatinga and the remaining regions may indicate the occurrence of a cryptic species in . The unique genetic composition of each inselberg population suggests in situ conservation as the most appropriate protection measure for this plant lineage.
[Mh] Termos MeSH primário: Bromeliaceae/genética
Genética Populacional
Polinização
Dispersão de Sementes
[Mh] Termos MeSH secundário: Brasil
Fluxo Gênico
Variação Genética
Repetições de Microssatélites
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171020
[Lr] Data última revisão:
171020
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170615
[St] Status:MEDLINE
[do] DOI:10.3732/ajb.1600410


  9 / 500 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28493968
[Au] Autor:Raviv B; Granot G; Chalifa-Caspi V; Grafi G
[Ad] Endereço:French Associates Institute of Agriculture and Biotechnology of Drylands, The Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion, Israel.
[Ti] Título:The dead, hardened floral bracts of dispersal units of wild wheat function as storage for active hydrolases and in enhancing seedling vigor.
[So] Source:PLoS One;12(5):e0177537, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:It is commonly assumed that the dead, hardened floral bracts of the dispersal unit of grasses have been evolved to protect seeds from predation and / or assist in fruit/caryopsis dispersal. While these structures have important agronomical and economical implications, their adaptive value has not been fully explored. We investigated the hypothesis that the maternally derived hardened floral bracts have been evolved not just as a means for caryopsis protection and dispersal, but also as storage for substances that might affect seed germination and seedling vigor. Dead glumes as well as lemmas and paleas of wild emmer wheat (Triticum turgidum var dicoccoides) were found to store and release upon hydration active hydrolases including nucleases and chitinases. High nuclease activity was released upon hydration from glumes derived from wild strains of wheat including Triticum urartu and wild emmer wheat, while very low nuclease activity was detected in glumes derived from domesticated, free-threshing wheat cultivars (e.g., durum wheat). Germination from the intact dispersal unit of wild emmer wheat was delayed, but post germination growth was better than those of separated caryopses. Most notable was a significant increase in lateral root production on seedlings germinated from the intact dispersal unit. Proteome analysis of wild emmer wheat glumes revealed many proteins stored and released upon hydration including S1-type nucleases, peptidases, antifungal hydrolases such as chitinases and ß-1,3-glucanase as well as pectin acetylesterase, a protein involved in cell wall degradation and remodeling. Also, reactive oxygen species (ROS)-detoxifying enzymes such as superoxide dismutase and ascorbate peroxidase were overrepresented in dead glumes of wild emmer wheat. Thus our study highlighted previously unknown features of the dispersal unit in wild wheat in which the dead, hardened floral bracts enclosing the caryopsis store active hydrolases and nutritional elements and probably growth promoting substances that facilitate seed longevity and germination and increase seedling vigor.
[Mh] Termos MeSH primário: Flores/anatomia & histologia
Hidrolases/metabolismo
Dispersão de Sementes/fisiologia
Plântulas/fisiologia
Triticum/anatomia & histologia
Triticum/enzimologia
[Mh] Termos MeSH secundário: Endonucleases/metabolismo
Germinação
Glicosilação
Proteínas de Plantas/metabolismo
Proteoma/metabolismo
Proteômica
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Proteins); 0 (Proteome); EC 3.- (Hydrolases); EC 3.1.- (Endonucleases)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170911
[Lr] Data última revisão:
170911
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170512
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0177537


  10 / 500 MEDLINE  
              first record previous record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28374224
[Au] Autor:Koski TM; Kalpio M; Laaksonen T; Sirkiä PM; Kallio HP; Yang B; Linderborg KM; Klemola T
[Ad] Endereço:Section of Ecology, Department of Biology, University of Turku, 20014, Turku, FI, Finland. tmhkos@utu.fi.
[Ti] Título:Effects of Insect Herbivory on Bilberry Production and Removal of Berries by Frugivores.
[So] Source:J Chem Ecol;43(4):422-432, 2017 Apr.
[Is] ISSN:1573-1561
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The evolutionary purpose of a fleshy fruit is to attract seed dispersers and get the seeds dispersed by frugivorous animals. For this reason, fruits should be highly rewarding to these mutualists. However, insect herbivory can alter plant reproductive success e.g. by decreasing fruit yield or affecting the attractiveness of the fruits to mutualistic seed dispersers. Under natural conditions, we tested the effects of experimental larval-defoliation on berry ripening and consumption of a non-cultivated dwarf shrub, the bilberry (Vaccinium myrtillus L.), which produces animal-dispersed berries with high sugar and anthocyanin concentration. Bilberry ramets with high fruit yield were most likely to have their berries foraged, indicating that frugivores made foraging choices based on the abundance of berries. Moreover, the probability for berries being foraged was the lowest for non-defoliated ramets that grew adjacent to larval-defoliated ramets, even though larval-defoliation did not affect the biochemical composition (total concentrations of anthocyanins, sugars and organic acids) or the probability of ripening of berries. We hypothesise that the lower probability for berries being foraged in these ramets may be a consequence of rhizome- or volatile-mediated communication between ramets, resulting in a priming effect of the herbivore defence and lower attractiveness of the non-defoliated ramets.
[Mh] Termos MeSH primário: Antocianinas/análise
Frutas/crescimento & desenvolvimento
Herbivoria
Mariposas/fisiologia
Vaccinium myrtillus/química
Vaccinium myrtillus/fisiologia
[Mh] Termos MeSH secundário: Animais
Antocianinas/química
Antocianinas/metabolismo
Cromatografia Gasosa
Cromatografia Líquida de Alta Pressão
Larva/fisiologia
Dispersão de Sementes
Sementes/fisiologia
Vaccinium myrtillus/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anthocyanins)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:171027
[Lr] Data última revisão:
171027
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170405
[St] Status:MEDLINE
[do] DOI:10.1007/s10886-017-0838-8



página 1 de 50 ir para página                         
   


Refinar a pesquisa
  Base de dados : MEDLINE Formulário avançado   

    Pesquisar no campo  
1  
2
3
 
           



Search engine: iAH v2.6 powered by WWWISIS

BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde