Base de dados : MEDLINE
Pesquisa : B01.650.940.800.575.912.250.583.800.899 [Categoria DeCS]
Referências encontradas : 61 [refinar]
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[PMID]:27749263
[Au] Autor:Cudic V; Stojiljkovic D; Jovovic A
[Ti] Título:Phytoremediation potential of wild plants growing on soil contaminated with heavy metals.
[So] Source:Arh Hig Rada Toksikol;67(3):229-239, 2016 Sep 01.
[Is] ISSN:1848-6312
[Cp] País de publicação:Croatia
[La] Idioma:eng
[Ab] Resumo:Phytoremediation is an emerging technology that employs higher plants to cleanup contaminated environments, including metal-polluted soils. Because it produces a biomass rich in extracted toxic metals, further treatment of this biomass is necessary. The aim of our study was to assess the five-year potential of the following native wild plants to produce biomass and remove heavy metals from a polluted site: poplar (Populus ssp.), ailanthus (Ailanthus glandulosa L.), false acacia (Robinia pseudoacacia L.), ragweed (Artemisia artemisiifolia L.), and mullein (Verbascum thapsus L). Average soil contamination with Pb, Cd, Zn, Cu, Ni, Cr, and As in the root zone was 22,948.6 mg kg-1, 865.4 mg kg-1, 85,301.7 mg kg-1, 3,193.3 mg kg-1, 50.7 mg kg-1, 41.7 mg kg-1,and 617.9 mg kg-1, respectively. We measured moisture and ash content, concentrations of Pb, Cd, Zn, Cu, Ni, Cr, and As in the above-ground parts of the plants and in ash produced by combustion of the plants, plus gross calorific values. The plants' phytoextraction and phytostabilisation potential was evaluated based on their bioconcentration factor (BCF) and translocation factor (TF). Mullein was identified as a hyperaccumulator for Cd. It also showed a higher gross calorific value (19,735 kJ kg-1) than ragweed (16,469 kJ kg-1).The results of this study suggest that mullein has a great potential for phytoextraction and for biomass generation, and that ragweed could be an effective tool of phytostabilisation.
[Mh] Termos MeSH primário: Biodegradação Ambiental
Intoxicação por Metais Pesados
Metais Pesados/metabolismo
Raízes de Plantas/metabolismo
Envenenamento/metabolismo
Poluentes do Solo/metabolismo
[Mh] Termos MeSH secundário: Ailanthus/metabolismo
Artemisia
Monitoramento Ambiental
Populus/metabolismo
Robinia/metabolismo
Sérvia
Verbascum/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Metals, Heavy); 0 (Soil Pollutants)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161018
[St] Status:MEDLINE


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[PMID]:27629546
[Au] Autor:Mergia E; Shibeshi W; Terefe G; Teklehaymanot T
[Ad] Endereço:Department of Pharmacology and Clinical Pharmacy, Faculty of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia.
[Ti] Título:Antitrypanosomal activity of Verbascum sinaiticum Benth. (Scrophulariaceae) against Trypanosoma congolense isolates.
[So] Source:BMC Complement Altern Med;16:362, 2016 Sep 15.
[Is] ISSN:1472-6882
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: African Trypanosomiasis is a neglected tropical disease with a large impact on the livelihood of the rural poor in Sub-Saharan Africa. The available drugs for managing this disease are old, expensive and are facing the problem of drug resistance. Thus, the aim of this study was to evaluate in vivo antitrypanosomal efficacy of aqueous and absolute methanol leaf extracts of Verbascum sinaiticum Benth. against Trypanosoma congolense field isolate. METHODS: Verbascum sinaiticum (Local name 'qetetina') is a biennial plant, and 60-150 cm tall. It is traditionally used to treat wound, stomachache, viral infection, cancer, sunstroke, fever, abdominal colic, diarrhea, hemorrhage, anthrax, and hepatitis. The efficacy of aqueous and absolute methanol leaf extracts of V. sinaiticum was evaluated in a randomized experiment with Swiss albino mice infected with T. congolense field isolate. The extracts were administered at doses of 100, 200 and 400 mg/kg by intraperitoneal injection for seven days at 12 Days Post-Infection (DPI) when the peak parasitaemia level was approximately 10(8) trypanosomes/ml. Parasitaemia, Packed Cell Volume (PCV), mean survival time and change in body weight were used as indices for monitoring the efficacy of the extracts. Diminazene (28 mg/kg) was used as a positive control while 2 % Tween was used as the negative control. Phytochemicals screening were conducted following standard methods. RESULTS: The extracts showed no toxicity effect in Swiss albino mice and had LD50 above 2000 mg/kg. The phytochemicals screened in V. sinaiticum were alkaloids, flavonoids, glycoside, saponins, steroids, phenolic compounds, and tannins. The mice treated with absolute methanol leaf extract of V. sinaiticum at 400 mg/kg dose had significantly lower mean parasitaemia (7.20 ± 0.16) (p < 0.001) as compared to the negative control group (8.82 ± 0.12) on day 14 of treatment. Animals treated with the same dose had significant (p < 0.001) higher PCV value and body weight and as well as the highest mean survival time of 40.20 ± 0.31 days as compared to the negative control at the end of the observation period. CONCLUSION: This study established that Verbascum sinaiticum had trypanocidal activity. The crude extracts have partially eliminated trypanosomes in a dose-dependent manner. The study can be a basis for future in-depth analysis of the biologically active chemicals.
[Mh] Termos MeSH primário: Extratos Vegetais/farmacologia
Tripanossomicidas/farmacologia
Trypanosoma congolense/efeitos dos fármacos
Tripanossomíase Africana/parasitologia
Verbascum/química
[Mh] Termos MeSH secundário: Animais
Peso Corporal/efeitos dos fármacos
Modelos Animais de Doenças
Feminino
Camundongos
Extratos Vegetais/química
Extratos Vegetais/uso terapêutico
Extratos Vegetais/toxicidade
Tripanossomicidas/química
Tripanossomicidas/uso terapêutico
Tripanossomicidas/toxicidade
Tripanossomíase Africana/tratamento farmacológico
[Pt] Tipo de publicação:JOURNAL ARTICLE; RANDOMIZED CONTROLLED TRIAL
[Nm] Nome de substância:
0 (Plant Extracts); 0 (Trypanocidal Agents)
[Em] Mês de entrada:1702
[Cu] Atualização por classe:170220
[Lr] Data última revisão:
170220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160916
[St] Status:MEDLINE
[do] DOI:10.1186/s12906-016-1346-z


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[PMID]:27259724
[Au] Autor:Marchev A; Yordanova Z; Alipieva K; Zahmanov G; Rusinova-Videva S; Kapchina-Toteva V; Simova S; Popova M; Georgiev MI
[Ad] Endereço:Laboratory of Applied Biotechnologies, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 139 Ruski Blvd., Plovdiv, 4000, Bulgaria.
[Ti] Título:Genetic transformation of rare Verbascum eriophorum Godr. plants and metabolic alterations revealed by NMR-based metabolomics.
[So] Source:Biotechnol Lett;38(9):1621-9, 2016 Sep.
[Is] ISSN:1573-6776
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:OBJECTIVES: To develop a protocol to transform Verbascum eriophorum and to study the metabolic differences between mother plants and hairy root culture by applying NMR and processing the datasets with chemometric tools. RESULTS: Verbascum eriophorum is a rare species with restricted distribution, which is poorly studied. Agrobacterium rhizogenes-mediated genetic transformation of V. eriophorum and hairy root culture induction are reported for the first time. To determine metabolic alterations, V. eriophorum mother plants and relevant hairy root culture were subjected to comprehensive metabolomic analyses, using NMR (1D and 2D). Metabolomics data, processed using chemometric tools (and principal component analysis in particular) allowed exploration of V. eriophorum metabolome and have enabled identification of verbascoside (by means of 2D-TOCSY NMR) as the most abundant compound in hairy root culture. CONCLUSION: Metabolomics data contribute to the elucidation of metabolic alterations after T-DNA transfer to the host V. eriophorum genome and the development of hairy root culture for sustainable bioproduction of high value verbascoside.
[Mh] Termos MeSH primário: Metabolômica/métodos
Plantas Geneticamente Modificadas/metabolismo
Verbascum/metabolismo
[Mh] Termos MeSH secundário: Iridoides/metabolismo
Espectroscopia de Ressonância Magnética
Plantas Geneticamente Modificadas/genética
Verbascum/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Iridoids)
[Em] Mês de entrada:1702
[Cu] Atualização por classe:170222
[Lr] Data última revisão:
170222
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160605
[St] Status:MEDLINE
[do] DOI:10.1007/s10529-016-2138-8


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[PMID]:26865485
[Au] Autor:Morina F; Jovanovic L; Prokic L; Veljovic-Jovanovic S; Smith JAC
[Ad] Endereço:Institute for Multidisciplinary Research, University of Belgrade, Kneza Viseslava 1, 11030, Belgrade, Serbia. filis@imsi.rs.
[Ti] Título:Physiological basis of differential zinc and copper tolerance of Verbascum populations from metal-contaminated and uncontaminated areas.
[So] Source:Environ Sci Pollut Res Int;23(10):10005-20, 2016 05.
[Is] ISSN:1614-7499
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Metal contamination represents a strong selective pressure favoring tolerant genotypes and leading to differentiation between plant populations. We investigated the adaptive capacity of early-colonizer species of Verbascum recently exposed to Zn- and Cu-contaminated soils (10-20 years). Two Verbascum thapsus L. populations from uncontaminated sites (NMET1, NMET2), one V. thapsus from a zinc-contaminated site (MET1), and a Verbascum lychnitis population from an open-cast copper mine (MET2) were exposed to elevated Zn or Cu in hydroponic culture under glasshouse conditions. MET populations showed considerably higher tolerance to both Zn and Cu than NMET populations as assessed by measurements of growth and net photosynthesis, yet they accumulated higher tissue Zn concentrations in the shoot. Abscisic acid (ABA) concentration increased with Zn and Cu treatment in the NMET populations, which was correlated to stomatal closure, decrease of net photosynthesis, and nutritional imbalance, indicative of interference with xylem loading and divalent-cation homeostasis. At the cellular level, the sensitivity of NMET2 to Zn and Cu was reflected in significant metal-induced ROS accumulation and ion leakage from roots as well as strong induction of peroxidase activity (POD, EC 1.11.1.7), while Zn had no significant effect on ABA concentration and POD activity in MET1. Interestingly, MET2 had constitutively higher root ABA concentration and POD activity. We propose that ABA distribution between shoots and roots could represent an adaptive mechanism for maintaining low ABA levels and unaffected stomatal conductance. The results show that metal tolerance can occur in Verbascum populations after relatively short time of exposure to metal-contaminated soil, indicating their potential use for phytostabilization.
[Mh] Termos MeSH primário: Cobre/farmacologia
Poluentes do Solo/farmacologia
Verbascum/efeitos dos fármacos
Zinco/farmacologia
[Mh] Termos MeSH secundário: Cobre/análise
Cobre/metabolismo
Poluição Ambiental
Mineração
Raízes de Plantas/efeitos dos fármacos
Raízes de Plantas/crescimento & desenvolvimento
Raízes de Plantas/metabolismo
Brotos de Planta/efeitos dos fármacos
Brotos de Planta/crescimento & desenvolvimento
Brotos de Planta/metabolismo
Poluentes do Solo/análise
Verbascum/crescimento & desenvolvimento
Verbascum/metabolismo
Zinco/análise
Zinco/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Soil Pollutants); 789U1901C5 (Copper); J41CSQ7QDS (Zinc)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:171113
[Lr] Data última revisão:
171113
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160212
[St] Status:MEDLINE
[do] DOI:10.1007/s11356-016-6177-4


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[PMID]:26642647
[Au] Autor:Török T; Varga E
[Ti] Título:[Pharmacognosy study of Verbascum species].
[Ti] Título:A Verbascum sp. farmakognóziai vizsgálata..
[So] Source:Acta Pharm Hung;85(3):89-95, 2015.
[Is] ISSN:0001-6659
[Cp] País de publicação:Hungary
[La] Idioma:hun
[Ab] Resumo:The mullein (Verbascum phlomoides L., V thapsus L., V. thapsiforme Schrad., V. speciosum L.) is a medicinal herb known and used for a long time, especially in traditional Turkish medicine. The aims of our study were to identify the species and study the plant's major active substances both qualitatively and quantitatively, comparing it to data found in scientific literature. The plants were identified as probable hybrids of V. phlomoides and V. thapsiforme. Microscopic analysis of the flowers showed no major difference between the specimens. The diameter of both stomata and pollen we observed was around 15-20 µm. Important flavonoids like rutin and quercetin were identified. Dosage resulted in a 0.135% total flavonoid aglycone content. (expressed as hypericin) and a 1.3% total flavonoid glycoside content (expressed as rutoside). Thin layer chromatography from saponines revealed two spots. A hemolytic index of 13095 was also determined. Repeating the dosage experiment a year later resulted in significantly lower flavonoid aglycone and glycoside content (0.006% and 0.95% respectively) as well as a hemolytic index of approximately 4000.
[Mh] Termos MeSH primário: Hemólise/efeitos dos fármacos
Farmacognosia
Plantas Medicinais/química
Verbascum/química
[Mh] Termos MeSH secundário: Cromatografia em Camada Delgada
Flavonoides/isolamento & purificação
Flores/química
Perileno/análogos & derivados
Perileno/isolamento & purificação
Farmacognosia/métodos
Quercetina/isolamento & purificação
Rutina/isolamento & purificação
Saponinas/isolamento & purificação
[Pt] Tipo de publicação:ENGLISH ABSTRACT; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Flavonoids); 0 (Saponins); 5G06TVY3R7 (Rutin); 5QD5427UN7 (Perylene); 7V2F1075HD (hypericin); 9IKM0I5T1E (Quercetin)
[Em] Mês de entrada:1601
[Cu] Atualização por classe:151208
[Lr] Data última revisão:
151208
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151209
[St] Status:MEDLINE


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[PMID]:26239850
[Au] Autor:Kashan ZF; Arbabi M; Delavari M; Hooshyar H; Taghizadeh M; Joneydy Z
[Ti] Título:Effect of Verbascum thapsus ethanol extract on induction of apoptosis in Trichomonas vaginalis in vitro.
[So] Source:Infect Disord Drug Targets;15(2):125-30, 2015.
[Is] ISSN:2212-3989
[Cp] País de publicação:United Arab Emirates
[La] Idioma:eng
[Ab] Resumo:Trichomoniasis is a sexually transmitted disease (STD) caused by a tiny parasite called Trichomonas vaginalis. Metronidazole is used as routine treatment of disease. Some reports have confirmed the potential carcinogenic and teratogenic effects of this drug on fetus and indication of drug resistance. Verbascum thapsus belongs to the family of Scorphulariaceae. Its antiinflammatory properties, disinfectant and skin healing effects are well known. This plant has been used to treat diarrhea and genitourinary infection in traditional medicine. Effects of different concentrations of the Verbascum thapsus extract were tested on the growth and motility of T. vaginalis trophozoites. To evaluate the toxicity of extract, their effects on mice macrophages were measured by MTT([3-(4,5-dimethyl thiazolyl-2)- 2,5-diphenyle tetrazolium bromide ])assay. In this experimental study the effect of Verbascum thapsus ethanol extract on induction apoptosis in T. vaginalis was determined by Flow Cytometry. Results were analyzed by Flow Jo software and the degree of apoptosis was determined. Toxicity percentage of 25-800 µg/ml concentrations of Verbascum thapsus alcoholic extract for mice macrophages was observed between 0.17-0.25 after 12 hours and they were between 0.25-0.42 and0.45-0.95 after 24 and 48h respectively. IC50 (inhibitory concentration, 50%) of Verbascum thapsus ethanol extract and metronidazole after 24h was 39.17 and 0.0326 µg/ml respectively. Flow cytometry results showed the percent of apoptosis following treatment of trophozoites with different concentrations of Verbascum thapsus ethanol extract (25, 50,100,200,400 µg/ml), were 20.7, 37.04, 47.5, 62.72 and 86.35 respectively, while in control group was 2.9. According to this study, Verbascum thapsus extract induces programmed death in T. vaginalis. It is recommended that Verbascum thapsus extract can be considered as a suitable choice for Medical Studies.
[Mh] Termos MeSH primário: Apoptose/efeitos dos fármacos
Extratos Vegetais/farmacologia
Trichomonas vaginalis/efeitos dos fármacos
Verbascum/química
[Mh] Termos MeSH secundário: Animais
Etanol
Citometria de Fluxo
Macrófagos/efeitos dos fármacos
Macrófagos/parasitologia
Camundongos
Extratos Vegetais/toxicidade
Trichomonas vaginalis/crescimento & desenvolvimento
Trichomonas vaginalis/fisiologia
Trofozoítos/efeitos dos fármacos
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Plant Extracts); 3K9958V90M (Ethanol)
[Em] Mês de entrada:1605
[Cu] Atualização por classe:150804
[Lr] Data última revisão:
150804
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150805
[St] Status:MEDLINE


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[PMID]:25924525
[Au] Autor:Youn IS; Han AR; Roh MS; Seo EK
[Ti] Título:Constituents of the leaves of Verbascum blattaria.
[So] Source:Nat Prod Commun;10(3):445-6, 2015 Mar.
[Is] ISSN:1934-578X
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Phytochemical investigation of the dried leaves of Verbascum blattaria L. (Scrophulariaceae) led to the isolation and identification of five known compounds, E-harpagoside, laterioside, kaempferol 3-O-ß-D-glucopyranoside, bis(2-ethylhexyl)phthalate, and (2S)-liquiritigenin. The structures of these compounds were determined by physical and spectroscopic data analysis. All compounds were isolated from V blattaria for the first time.
[Mh] Termos MeSH primário: Folhas de Planta/química
Verbascum/química
[Mh] Termos MeSH secundário: Estrutura Molecular
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1506
[Cu] Atualização por classe:150430
[Lr] Data última revisão:
150430
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150501
[St] Status:MEDLINE


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[PMID]:25747241
[Au] Autor:Akpinar A; Arslan H; Güleryüz G; Kirmizi S; ErdemIr ÜS; Güçer S
[Ad] Endereço:a Faculty of Science and Arts, Department of Biology , University of Uludag, Nilüfer Bursa , Turkey.
[Ti] Título:Ni-induced Changes in Nitrate Assimilation and Antioxidant Metabolism of Verbascum olympicum Boiss.: Could the Plant be Useful for Phytoremediation or/and Restoration Purposes?
[So] Source:Int J Phytoremediation;17(1-6):546-55, 2015.
[Is] ISSN:1522-6514
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Verbascum olympicum Boiss. (Scrophulariaceae) were studied as a candidate plant for remediating the Ni polluted soils. The metabolic responses, such as nitrate assimilation (nitrate reductase and glutamine synthetase activity) and antioxidant system activity [superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX) activity], of this species exposed to nickel in Hoagland's nutrient medium were investigated as remediation performance parameters. The accumulation of nickel and the variations in the content of some elements (B, Cu, Fe, Mg, Mn, Mo and Zn) and some growth parameters, such as the water content, biomass production, and contents of chlorophyll and soluble protein, were also examined. The accumulation of Ni in both the roots and leaves varied depending on the exposure times and doses. Increased oxidative stress was suggested by the increases in the activities of SOD, CAT and APX. Although some element contents were inhibited by Ni treatments, these inhibitory effects was decreased depending on the time, and even these elements are accumulated in roots. These results are the novelties in the use of this species in biotechnology.
[Mh] Termos MeSH primário: Antioxidantes/metabolismo
Recuperação e Remediação Ambiental/métodos
Níquel/metabolismo
Nitratos/metabolismo
Verbascum/metabolismo
[Mh] Termos MeSH secundário: Ascorbato Peroxidases/metabolismo
Biodegradação Ambiental
Catalase/metabolismo
Recuperação e Remediação Ambiental/instrumentação
Proteínas de Plantas/metabolismo
Superóxido Dismutase/metabolismo
Verbascum/enzimologia
[Pt] Tipo de publicação:EVALUATION STUDIES; JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Antioxidants); 0 (Nitrates); 0 (Plant Proteins); 7OV03QG267 (Nickel); EC 1.11.1.11 (Ascorbate Peroxidases); EC 1.11.1.6 (Catalase); EC 1.15.1.1 (Superoxide Dismutase)
[Em] Mês de entrada:1510
[Cu] Atualização por classe:150309
[Lr] Data última revisão:
150309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150310
[St] Status:MEDLINE
[do] DOI:10.1080/15226514.2014.922926


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[PMID]:25368046
[Au] Autor:GÓ§kçe A; Stelinski LL; Nortman DR; Bryan WW; Whalon ME
[Ad] Endereço:Nigde University, Faculty of Agricultural Sciences and Technologies, Department of Plant Production and Technologies, Nigde, Turkey ayhan.gokce@nigde.edu.tr.
[Ti] Título:Behavioral and electroantennogram responses of plum curculio, Conotrachelus nenuphar, to selected noxious plant extracts and insecticides.
[So] Source:J Insect Sci;14:90, 2014.
[Is] ISSN:1536-2442
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Behavioral and electroantennogram responses of plum curculio, Conotrachelus nenuphar (Herbst) (Coleoptera: Curculionidae), adults were tested for several methanolic plant extracts and organically approved insecticides. Plant extracts were evaluated for their potential as antifeedants or oviposition deterrents. These extract responses were also compared to those elicited by the non-neurotoxic, organic irritant-insecticide kaolin clay. Both sexes of plum curculio exhibited antennal response as measured by electroantennogram, which ranged from 0.2 to 1.1 mV, to plant extracts and the organic irritant/insecticide, with the greatest response to the extract of rough cocklebur, Xanthium strumarium L. (1.1 mV). No choice tests were conducted to compare feeding and oviposition by plum curculio on untreated apples or on apples treated with one of the extracts or the insecticide. The insecticide pyrethrum and extracts of X. strumarium and greater burdock, Arctium lappa L., significantly reduced feeding. Also, pyrethrum, A. lappa, Humulus lupulus L. (common hop), X. strumarium, and Verbascum songaricum Schrenk extracts completely inhibited egg deposition. In no-choice assays, the effects of kaolin clay with incorporated plant extracts on plum curculio feeding and oviposition were monitored as complementary tests. A. lappa-kaolin, H. lupulus-kaolin, and X. strumarium-kaolin mixtures significantly reduced the feeding of plum curculio compared to the control or kaolin clay alone. Each of the plant extract-kaolin mixtures evaluated, with the exception of Bifora radians Bieberstein (wild bishop), completely inhibited plum curculio oviposition as compared to controls.
[Mh] Termos MeSH primário: Antenas de Artrópodes/efeitos dos fármacos
Inseticidas/toxicidade
Oviposição/efeitos dos fármacos
Extratos Vegetais/farmacologia
Gorgulhos/efeitos dos fármacos
[Mh] Termos MeSH secundário: Animais
Apiaceae
Arctium
Comportamento Alimentar/efeitos dos fármacos
Feminino
Humulus
Masculino
Verbascum
Xanthium
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Insecticides); 0 (Plant Extracts)
[Em] Mês de entrada:1507
[Cu] Atualização por classe:171027
[Lr] Data última revisão:
171027
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:141105
[St] Status:MEDLINE


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[PMID]:25127229
[Au] Autor:Alba C; Bowers MD; Blumenthal D; Hufbauer RA
[Ad] Endereço:Graduate Degree Program in Ecology and Department of Bioagricultural Sciences and Pest Management, Colorado State University, Fort Collins, Colorado, United States of America.
[Ti] Título:Chemical and mechanical defenses vary among maternal lines and leaf ages in Verbascum thapsus L. (Scrophulariaceae) and reduce palatability to a generalist insect.
[So] Source:PLoS One;9(7):e104889, 2014.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Intra-specific variation in host-plant quality affects herbivore foraging decisions and, in turn, herbivore foraging decisions mediate plant fitness. In particular, variation in defenses against herbivores, both among and within plants, shapes herbivore behavior. If variation in defenses is genetically based, it can respond to natural selection by herbivores. We quantified intra-specific variation in iridoid glycosides, trichome length, and leaf strength in common mullein (Verbascum thapsus L, Scrophulariaceae) among maternal lines within a population and among leaves within plants, and related this variation to feeding preferences of a generalist herbivore, Trichopulsia ni Hübner. We found significant variation in all three defenses among maternal lines, with T. ni preferring plants with lower investment in chemical, but not mechanical, defense. Within plants, old leaves had lower levels of all defenses than young leaves, and were strongly preferred by T. ni. Caterpillars also preferred leaves with trichomes removed to leaves with trichomes intact. Differences among maternal lines indicate that phenotypic variation in defenses likely has a genetic basis. Furthermore, these results reveal that the feeding behaviors of T. ni map onto variation in plant defense in a predictable way. This work highlights the importance of variation in host-plant quality in driving interactions between plants and their herbivores.
[Mh] Termos MeSH primário: Herbivoria
Glicosídeos Iridoides/metabolismo
Mariposas
Folhas de Planta/metabolismo
Verbascum/metabolismo
[Mh] Termos MeSH secundário: Animais
Fenômenos Biomecânicos
Preferências Alimentares
Tricomas/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
0 (Iridoid Glycosides)
[Em] Mês de entrada:1511
[Cu] Atualização por classe:170220
[Lr] Data última revisão:
170220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:140816
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0104889



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