Base de dados : MEDLINE
Pesquisa : B01.650.940.800.575.912.250.401.175 [Categoria DeCS]
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[PMID]:28777979
[Au] Autor:Hu XR; Chou GX; Zhang CG
[Ad] Endereço:The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China; Shanghai R&D Centre for Standardization of Chinese Medicines, Shanghai 201203, People's Republic of China.
[Ti] Título:Flavonoids, alkaloids from the seeds of Crotalaria pallida and their cytotoxicity and anti-inflammatory activities.
[So] Source:Phytochemistry;143:64-71, 2017 Nov.
[Is] ISSN:1873-3700
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Three flavonoids, cropalliflavones A-C, including two homoisoflavonoids with rare skeletons; three previously undescribed alkaloids, usaramine-N-oxide and cropallins A-B; and sixteen known compounds, were isolated from the seeds of Crotalaria pallida Ait. The absolute configurations of cropalliflavone A and usaramine-N-oxide were established by an ECD calculation and X-ray crystallography, respectively. Additionally, cropalliflavone B showed anti-proliferative activity against the MCF-7 cell line with an IC value of 6.77 µM, and cropalliflavone C showed anti-inflammatory activity, with an IC value of 16.07 µM.
[Mh] Termos MeSH primário: Alcaloides/isolamento & purificação
Alcaloides/farmacologia
Anti-Inflamatórios/isolamento & purificação
Anti-Inflamatórios/farmacologia
Crotalaria/química
Flavonoides/isolamento & purificação
Flavonoides/farmacologia
Sementes/química
[Mh] Termos MeSH secundário: Alcaloides/química
Anti-Inflamatórios/química
Cristalografia por Raios X
Flavonoides/química
Seres Humanos
Concentração Inibidora 50
Células MCF-7
Conformação Molecular
Estrutura Molecular
Alcaloides de Pirrolizidina
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Alkaloids); 0 (Anti-Inflammatory Agents); 0 (Flavonoids); 0 (Pyrrolizidine Alkaloids); XJ86XWL8IY (retrorsine)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171002
[Lr] Data última revisão:
171002
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170805
[St] Status:MEDLINE


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[PMID]:28245805
[Au] Autor:Rockinger A; Flores AS; Renner SS
[Ad] Endereço:Systematic Botany and Mycology, University of Munich (LMU), Menzinger Str. 67, 80638, Munich, Germany. a.rockinger@gmail.com.
[Ti] Título:Clock-dated phylogeny for 48% of the 700 species of Crotalaria (Fabaceae-Papilionoideae) resolves sections worldwide and implies conserved flower and leaf traits throughout its pantropical range.
[So] Source:BMC Evol Biol;17(1):61, 2017 Feb 28.
[Is] ISSN:1471-2148
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: With some 700 species, the pantropical Crotalaria is among the angiosperm's largest genera. We sampled 48% of the species from all sections (and representatives of the 15 remaining Crotalarieae genera) for nuclear and plastid DNA markers to infer changes in climate niches, flower morphology, leaf type, and chromosome numbers. RESULTS: Crotalaria is monophyletic and most closely related to African Bolusia (five species) from which it diverged 23 to 30 Ma ago. Ancestral state reconstructions reveal that leaf and flower types are conserved in large clades and that leaf type is uncorrelated to climate as assessed with phylogenetically-informed analyses that related compound vs. simple leaves to the mean values of four Bioclim parameters for 183 species with good occurrence data. Most species occur in open habitats <1000 m alt., and trifoliolate leaves are the ancestral condition, from which unifoliolate and simple leaves each evolved a few times, the former predominantly in humid, the latter mainly in dry climates. Based on chromosome counts for 36% of the 338 sequenced species, most polyploids are tetraploid and belong to a neotropical clade. CONCLUSIONS: An unexpected finding of our study is that in Crotalaria, simple leaves predominate in humid climates and compound leaves in dry climates, which points to a different adaptive value of these morphologies, regardless of whether these two leaf types evolved rarely or frequently in our focal group.
[Mh] Termos MeSH primário: Crotalaria/anatomia & histologia
Crotalaria/genética
Flores/anatomia & histologia
Folhas de Planta/anatomia & histologia
[Mh] Termos MeSH secundário: Clima
Crotalaria/classificação
Ecossistema
Filogenia
Plastídeos/genética
Poliploidia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170718
[Lr] Data última revisão:
170718
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170302
[St] Status:MEDLINE
[do] DOI:10.1186/s12862-017-0903-5


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[PMID]:27682803
[Au] Autor:Huang CT; Liu CT; Chen SJ; Kao WY
[Ad] Endereço:Institute of Ecology and Evolutionary Biology, National Taiwan University.
[Ti] Título:Phylogenetic Identification, Phenotypic Variations, and Symbiotic Characteristics of the Peculiar Rhizobium, Strain CzR2, Isolated from Crotalaria zanzibarica in Taiwan.
[So] Source:Microbes Environ;31(4):410-417, 2016 Dec 23.
[Is] ISSN:1347-4405
[Cp] País de publicação:Japan
[La] Idioma:eng
[Ab] Resumo:Crotalaria zanzibarica is an exotic and widely distributed leguminous plant in Taiwan. The relationship between C. zanzibarica and its rhizobial symbionts has been suggested to contribute to its successful invasion. A rhizobial strain (designed as CzR2) isolated from the root nodules of C. zanzibarica and cultivated in standard YEM medium displayed pleomorphism, with cells ranging between 2 and 10 µm in length and some branching. In the present study, we identified this rhizobial strain, investigated the causes of pleomorphism, and examined the nodules formed. The results of a multilocus sequence analysis of the atpD, dnaK, glnII, gyrB, recA, and rpoB genes revealed that CzR2 belongs to Bradyrhizobium arachidis, a peanut symbiont recently isolated from China. Cells of the strain were uniformly rod-shaped in basal HM medium, but displayed pleomorphism in the presence of yeast extract, mannitol, or fructose. These results indicate that the morphology of CzR2 in its free-living state is affected by nutrient conditions. Several highly pleomorphic bacteroids enclosed in symbiosomes were frequently detected in FM and TEM observations of sections of the indeterminate nodules induced by CzR2; however, no infection thread was identified. Flow cytometric analyses showed that CzR2 cells in YEM medium and in the nodules of C. zanzibarica had two or more than two peaks in relative DNA contents, respectively, suggesting that the elongated cells of CzR2 in its free-living state occur due to a cell cycle-delayed process, while those in its symbiotic state are from genomic endo-reduplication.
[Mh] Termos MeSH primário: Bradyrhizobium/classificação
Bradyrhizobium/isolamento & purificação
Crotalaria/microbiologia
Nodulação
[Mh] Termos MeSH secundário: Bradyrhizobium/genética
Bradyrhizobium/fisiologia
China
Análise por Conglomerados
DNA Bacteriano/química
DNA Bacteriano/genética
DNA Ribossômico/química
DNA Ribossômico/genética
Genes Essenciais
Filogenia
RNA Ribossômico 16S/genética
Nódulos Radiculares de Plantas/microbiologia
Análise de Sequência de DNA
Taiwan
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial); 0 (DNA, Ribosomal); 0 (RNA, Ribosomal, 16S)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170403
[Lr] Data última revisão:
170403
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160930
[St] Status:MEDLINE
[do] DOI:10.1264/jsme2.ME16063


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[PMID]:27534118
[Au] Autor:Zou YH; Liu X; Liu YN; Tang GH; Yin S
[Ti] Título:A Novel Heterodimer from Crotalaria ferruginea.
[So] Source:Nat Prod Commun;11(6):793-4, 2016 Jun.
[Is] ISSN:1934-578X
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:A new compound was isolated from the traditional Chinese folk herb Crotalaria ferruginea. The structure of the new compound was identified as (±)-crotaferruphenol (1) based on analyses of its spectroscopic data including NMR, MS, and specific rotation values. (±)-Crotaferruphenol was a novel heterodimer characteristic of a unique spiroketal moiety, which was produced by the condensation reaction of a chromanone and a 2-isopropenybenzofuran. (±)-Crotaferruphenol exhibited inhibitory activity (IC50 = 6.57 µM.) against phosphodiesterase-4 (PDE4), a drug target for the treatment of chronic obstructive pulmonary disease and asthma.
[Mh] Termos MeSH primário: Crotalaria/química
Extratos Vegetais/química
[Mh] Termos MeSH secundário: Dimerização
Estrutura Molecular
Extratos Vegetais/isolamento & purificação
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Plant Extracts)
[Em] Mês de entrada:1609
[Cu] Atualização por classe:160818
[Lr] Data última revisão:
160818
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160819
[St] Status:MEDLINE


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[PMID]:26865490
[Au] Autor:Baruah P; Deka S; Baruah PP
[Ad] Endereço:Environmental Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science & Technology (IASST), Paschim Boragaon, Guwahati, 781 035, Assam, India.
[Ti] Título:Phytoremediation of crude oil-contaminated soil employing Crotalaria pallida Aiton.
[So] Source:Environ Sci Pollut Res Int;23(11):10595-603, 2016 Jun.
[Is] ISSN:1614-7499
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:The purpose of the study was to evaluate the phytoremediation potentiality of a herb named Crotalaria pallida which are abundantly grown on crude oil-contaminated soil of oil field situated at upper Assam, India, so that this plant could be used to remediate hydrocarbon from contaminated soil. To evaluate the potentiality of the plant, a pot culture experiment was conducted taking 3 kg of rice field soil mixed with crude oil at a concentration of 10,000 (10 g/kg), 20,000 (20 g/kg), 30,000 (30 g/kg), 40,000 (40 g/kg), 50,000 (50 g/kg), 60,000 (60 g/kg), 70,000 (70 g/kg), 80,000 (80 g/kg), 90,000 (90 g/kg), and 100,000 (100 g/kg) ppm. Ten numbers of healthy seeds of C. pallida were sown in three pots of each concentration for germination, and after 15 days of germination, single healthy seedling in each pot was kept for the study. A control setup was also maintained without adding crude oil. The duration of the experiment was fixed for 6 months. The results showed that uptake of hydrocarbon by the plants was increased with increasing the concentration of crude oil in the soil up to 60,000 ppm. After that, uptake of hydrocarbon by the plants was found to be lower with increasing doses of crude oil concentration. Uptake of hydrocarbon by the shoot was found to be maximum, i.e., 35,018 ppm in 60,000 ppm concentration. Dissipation of total petroleum hydrocarbon (TPH) from the soil was also gradually increased with increasing concentration of crude oil in the soil up to 60,000 ppm. Maximum dissipation, i.e., 78.66 %, occurred in 60,000 ppm concentration of crude oil-mixed soil. The plant could not survive in 100,000 ppm concentration of crude oil-mixed soil. The results also demonstrated that there was a reduction in plant shoot and root biomass with an increase of crude oil concentration. Furthermore, results revealed that the shoot biomass was higher than root biomass in all the treatments.
[Mh] Termos MeSH primário: Biodegradação Ambiental
Crotalaria
Petróleo
Poluentes do Solo
[Mh] Termos MeSH secundário: Criança
Crotalaria/efeitos dos fármacos
Crotalaria/metabolismo
Seres Humanos
Petróleo/análise
Petróleo/metabolismo
Poluentes do Solo/análise
Poluentes do Solo/metabolismo
Poluentes do Solo/toxicidade
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Petroleum); 0 (Soil Pollutants)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:171103
[Lr] Data última revisão:
171103
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160212
[St] Status:MEDLINE
[do] DOI:10.1007/s11356-016-6227-y


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[PMID]:26798139
[Au] Autor:Reigada C; Guimarães KF; Parra JR
[Ad] Endereço:Departament of Entomology and Acarology, Universidade de São Paulo - USP/ESALQ, Av. Pádua Dias, 11, Piracicaba, SP 13418-900, Brazil ca.reigada@gmail.com.
[Ti] Título:Relative Fitness of Helicoverpa armigera (Lepidoptera: Noctuidae) on Seven Host Plants: A Perspective for IPM in Brazil.
[So] Source:J Insect Sci;16, 2016.
[Is] ISSN:1536-2442
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The cotton bollworm Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) is a widespread pest of many cultivated and wild plants in Europe, Africa, Asia, and Australia. In 2013, this species was reported in Brazil, attacking various host crops in the midwestern and northeastern regions of the country and is now found countrywide. Aiming to understand the effects of different host plants on the life cycle of H. armigera, we selected seven species of host plants that mature in different seasons and are commonly grown in these regions: cotton (Gossypium hirsutum, "FM993"), corn (Zea mays, "2B587"), soybean (Glycine max, "99R01"), rattlepods (Crotalaria spectabilis), millet (Pennisetum glaucum, "ADR300"), sorghum (Sorghum bicolor, "AGROMEN70G35"), and cowpea (Vigna unguiculata, "SEMPRE VERDE"). The development time of immatures, body weight, survivorship, and fecundity of H. armigera were evaluated on each host plant under laboratory conditions. The bollworms did not survive on corn, millet, or sorghum and showed very low survival rates on rattlepods. Survival rates were highest on soybean, followed by cotton and cowpea. The values for relative fitness found on soybean, cotton, cowpea, and rattlepods were 1, 0.5, 0.43, and 0.03, respectively. Survivorship, faster development time, and fecundity on soybean, cotton, and cowpea were positively correlated. Larger pupae and greater fecundity were found on soybean and cotton. The results indicated that soybean, cotton, and cowpea are the most suitable plants to support the reproduction of H. armigera in the field.
[Mh] Termos MeSH primário: Produtos Agrícolas/parasitologia
Mariposas/fisiologia
[Mh] Termos MeSH secundário: Animais
Brasil
Crotalaria/parasitologia
Gossypium/parasitologia
Controle de Insetos/métodos
Larva/fisiologia
Pennisetum/parasitologia
Reprodução/fisiologia
Sorghum/parasitologia
Feijão de Soja/parasitologia
Zea mays/parasitologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[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:160123
[St] Status:MEDLINE


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[PMID]:26710183
[Au] Autor:Lopes G; Ferreira PA; Pereira FG; Curi N; Rangel WM; Guilherme LR
[Ad] Endereço:a Department of Soil Science , Federal University of Lavras , Lavras , MG, CEP , Brazil.
[Ti] Título:Beneficial use of industrial by-products for phytoremediation of an arsenic-rich soil from a gold mining area.
[So] Source:Int J Phytoremediation;18(8):777-84, 2016 Aug 02.
[Is] ISSN:1549-7879
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:This study investigated two industrial by-products - red mud (RM) and its mixture with phosphogypsum (RMG), as amendments in an As((5+))-contaminated soil from a gold mining area in Brazil in order to grow three plant species: Brachiaria decumbens, Crotalaria spectabilis, and Stylosanthes cv. Campo Grande. These amendments were applied to reach a soil pH of 6.0. Using RM and RMG increased shoot dry matter (SDM) and root dry matter (RDM) of most plants, with RMG being more effective. Adding RMG increased the SDM of Brachiaria and Crotalaria by 18 and 25% and the RDM by 25 and 12%, respectively. Stylosanthes was sensitive to As toxicity and grew poorly in all treatments. Arsenic concentration in shoots of Brachiaria and Crotalaria decreased by 26% with the use of RMG while As in roots reduced by 11 and 30%, respectively. Also, the activities of the plant oxidative stress enzymes varied following treatments with the by-products. The plants grew in the As-contaminated soil from the gold mining area. Thus, they might be employed for phytoremediation purposes, especially with the use of RMG due to its potential advantage in terms of nutrient supply (Ca(2+) and SO4(2-) from phosphogypsum).
[Mh] Termos MeSH primário: Arsênico/análise
Biodegradação Ambiental
Ouro
Resíduos Industriais
Mineração
Poluentes do Solo/análise
[Mh] Termos MeSH secundário: Brachiaria/efeitos dos fármacos
Brachiaria/crescimento & desenvolvimento
Crotalaria/efeitos dos fármacos
Crotalaria/crescimento & desenvolvimento
Fabaceae/efeitos dos fármacos
Fabaceae/crescimento & desenvolvimento
Solo/química
Poluentes do Solo/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Industrial Waste); 0 (Soil); 0 (Soil Pollutants); 7440-57-5 (Gold); N712M78A8G (Arsenic)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151229
[St] Status:MEDLINE
[do] DOI:10.1080/15226514.2015.1131240


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[PMID]:26500338
[Au] Autor:Manandhar R; Wright MG
[Ad] Endereço:Current address: Lincoln University, Cooperative Research and Extension, 900 Chestnut St., Allen Hall 302, Jefferson City, MO 65101 (manandharr@lincolnu.edu), Department of Plant and Environmental Protection Sciences, University of Hawaii at Manoa, 3050 Maile Way, Gilmore Hall 310, Honolulu, HI 96822 (markwrig@hawaii.edu), and.
[Ti] Título:Effects of Interplanting Flowering Plants on the Biological Control of Corn Earworm (Lepidoptera: Noctuidae) and Thrips (Thysanoptera: Thripidae) in Sweet Corn.
[So] Source:J Econ Entomol;109(1):113-9, 2016 Feb.
[Is] ISSN:0022-0493
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Natural enemy exploitation of food resources and alternative hosts in noncrop vegetation has been shown to be an effective means of enhancing natural enemy populations in diversified agro-ecosystem. Field trials were conducted in Hawaii to examine effects of interplanting flowering plants on 1) parasitism of corn earworm, Helicoverpa zea (Boddie) eggs by Trichogramma spp., and 2) abundance of Orius spp. in relation to prey (H. zea eggs and thrips [primarily, Frankliniella occidentalis (Pergande) and Frankliniella williamsi Hood]). Sweet corn (maize), Zea mays L., was interplanted with three flowering plants, buckwheat, Fagopyrum esculentum Moench, cowpea, Vigna unguiculata (L.), and sunn hemp, Crotolaria juncea L., at 2:1 and 4:1 (corn: flowering plant) ratios in 2009 and 2010, respectively. In 2009, the abundance of Orius spp. was significantly greater in the buckwheat-interplanted treatment compared to the monocrop control at similar levels of prey availability, indicating buckwheat flowers might have provided both prey and nectar resources. In 2010, cowpea and sunn hemp flowering plants provided a source of an alternate host insect's eggs for Trichogramma spp. oviposition, resulting in significantly higher parasitism of H. zea eggs in the cowpea- and sunn hemp-interplanted treatments compared to the monocrop control. Despite of differences in pest and natural enemy interactions in two field trials, our findings suggested that provisioning of an alternate host insect's eggs through flowering plants is an effective means for enhancing Trichogramma spp. and provisioning of both nectar and prey resources through flowering plants is important for enhancing predation by Orius spp.
[Mh] Termos MeSH primário: Agricultura/métodos
Fabaceae/crescimento & desenvolvimento
Heterópteros/fisiologia
Mariposas/fisiologia
Controle Biológico de Vetores/métodos
Tisanópteros/fisiologia
Zea mays/crescimento & desenvolvimento
[Mh] Termos MeSH secundário: Animais
Crotalaria/crescimento & desenvolvimento
Cadeia Alimentar
Hawaii
Larva/crescimento & desenvolvimento
Larva/fisiologia
Mariposas/crescimento & desenvolvimento
Tisanópteros/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1604
[Cu] Atualização por classe:160211
[Lr] Data última revisão:
160211
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151027
[St] Status:MEDLINE
[do] DOI:10.1093/jee/tov306


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[PMID]:26284510
[Au] Autor:Murugan K; Sanoopa CP; Madhiyazhagan P; Dinesh D; Subramaniam J; Panneerselvam C; Roni M; Suresh U; Nicoletti M; Alarfaj AA; Munusamy MA; Higuchi A; Kumar S; Perumalsamy H; Ahn YJ; Benelli G
[Ad] Endereço:a Division of Entomology, Department of Zoology, School of Life Sciences , Bharathiar University , Coimbatore , India.
[Ti] Título:Rapid biosynthesis of silver nanoparticles using Crotalaria verrucosa leaves against the dengue vector Aedes aegypti: what happens around? An analysis of dragonfly predatory behaviour after exposure at ultra-low doses.
[So] Source:Nat Prod Res;30(7):826-33, 2016.
[Is] ISSN:1478-6427
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Aedes aegypti is a primary vector of dengue, a mosquito-borne viral disease infecting 50-100 million people every year. Here, we biosynthesised mosquitocidal silver nanoparticles (AgNP) using the aqueous leaf extract of Crotalaria verrucosa. The green synthesis of AgNP was studied by UV-vis spectroscopy, SEM, EDX and FTIR. C. verrucosa-synthesised AgNPs were toxic against A. aegypti larvae and pupae. LC50 of AgNP ranged from 3.496 ppm (I instar larvae) to 17.700 ppm (pupae). Furthermore, we evaluated the predatory efficiency of dragonfly nymphs, Brachydiplax sobrina, against II and III instar larvae of A. aegypti in an aquatic environment contaminated with ultra-low doses of AgNP. Under standard laboratory conditions, predation after 24 h was 87.5% (II) and 54.7% (III). In an AgNP-contaminated environment, predation was 91 and 75.5%, respectively. Overall, C. verrucosa-synthesised AgNP could be employed at ultra-low doses to reduce larval population of dengue vectors enhancing predation rates of dragonfly nymphs.
[Mh] Termos MeSH primário: Aedes
Crotalaria/química
Nanopartículas Metálicas/química
Odonatos/fisiologia
Extratos Vegetais/química
Comportamento Predatório
[Mh] Termos MeSH secundário: Animais
Vetores de Doenças
Inseticidas/química
Larva
Controle de Mosquitos
Folhas de Planta/química
Pupa
Prata/química
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Insecticides); 0 (Plant Extracts); 3M4G523W1G (Silver)
[Em] Mês de entrada:1609
[Cu] Atualização por classe:160302
[Lr] Data última revisão:
160302
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150819
[St] Status:MEDLINE
[do] DOI:10.1080/14786419.2015.1074230


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Solferini, Vera N
PubMed Central Texto completo
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[PMID]:26517873
[Au] Autor:Martins CH; Cunha BP; Solferini VN; Trigo JR
[Ad] Endereço:Laboratório de Ecologia Química, Departamento de Biologia Animal, Instituto de Biologia, UNICAMP, Caixa Postal 6109, 13083-970, Campinas, São Paulo, Brazil; Programa de Pós-Graduação em Biologia Funcional e Molecular, Instituto de Biologia, UNICAMP, Caixa Postal 6109, 13084-970, Campinas, São Paulo,
[Ti] Título:Feeding on Host Plants with Different Concentrations and Structures of Pyrrolizidine Alkaloids Impacts the Chemical-Defense Effectiveness of a Specialist Herbivore.
[So] Source:PLoS One;10(10):e0141480, 2015.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Sequestration of chemical defenses from host plants is a strategy widely used by herbivorous insects to avoid predation. Larvae of the arctiine moth Utetheisa ornatrix feeding on unripe seeds and leaves of many species of Crotalaria (Leguminosae) sequester N-oxides of pyrrolizidine alkaloids (PAs) from these host plants, and transfer them to adults through the pupal stage. PAs confer protection against predation on all life stages of U. ornatrix. As U. ornatrix also uses other Crotalaria species as host plants, we evaluated whether the PA chemical defense against predation is independent of host plant use. We fed larvae from hatching to pupation with either leaves or seeds of one of eight Crotalaria species (C. incana, C. juncea, C. micans, C. ochroleuca, C. pallida, C. paulina, C. spectabilis, and C. vitellina), and tested if adults were preyed upon or released by the orb-weaving spider Nephila clavipes. We found that the protection against the spider was more effective in adults whose larvae fed on seeds, which had a higher PA concentration than leaves. The exceptions were adults from larvae fed on C. paulina, C. spectabilis and C. vitellina leaves, which showed high PA concentrations. With respect to the PA profile, we describe for the first time insect-PAs in U. ornatrix. These PAs, biosynthesized from the necine base retronecine of plant origin, or monocrotaline- and senecionine-type PAs sequestered from host plants, were equally active in moth chemical defense, in a dose-dependent manner. These results are also partially explained by host plant phylogeny, since PAs of the host plants do have a phylogenetic signal (clades with high and low PA concentrations in leaves) which is reflected in the adult defense.
[Mh] Termos MeSH primário: Crotalaria/química
Comportamento Alimentar
Herbivoria/fisiologia
Mariposas/fisiologia
Comportamento Predatório
Alcaloides de Pirrolizidina/farmacologia
Aranhas/fisiologia
[Mh] Termos MeSH secundário: Animais
Biotransformação
Crotalaria/classificação
Feminino
Larva
Masculino
Monocrotalina/farmacocinética
Mariposas/química
Filogenia
Folhas de Planta/química
Néctar de Plantas
Alcaloides de Pirrolizidina/análise
Alcaloides de Pirrolizidina/isolamento & purificação
Alcaloides de Pirrolizidina/farmacocinética
Sementes/química
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Plant Nectar); 0 (Pyrrolizidine Alkaloids); 2P5723M6II (retronecine); 73077K8HYV (Monocrotaline); BO6N1U5YG6 (senecionine)
[Em] Mês de entrada:1606
[Cu] Atualização por classe:170220
[Lr] Data última revisão:
170220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151031
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0141480



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