Base de dados : MEDLINE
Pesquisa : B01.650.940.800.575.912.250.100.937 [Categoria DeCS]
Referências encontradas : 6 [refinar]
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  1 / 6 MEDLINE  
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[PMID]:25299590
[Au] Autor:Cavar Zeljkovic S; Ayaz FA; Inceer H; Inceer H; Hayirlioglu-Ayaz S; Colak N
[Ad] Endereço:a Faculty of Science, Centre of Region Haná for Biotechnogical and Agricultural Research, Palacky University , Slechtitelu 11, 78371 Olomouc , Czech Republic.
[Ti] Título:Evaluation of chemical profile and antioxidant activity of Tripleurospermum insularum, a new species from Turkey.
[So] Source:Nat Prod Res;29(3):293-6, 2015 Feb.
[Is] ISSN:1478-6427
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:This article presents the very first phytochemical investigation on new species Tripleurospermum insularum Inceer & Hayirlioglu-Ayaz. The volatile profile of odorous parts of the plant was analysed by GC/MS, and compounds were identified in headspace and essential oil obtained from aerial parts, representing 70.81% and 92.44% in total, respectively. The major volatiles were n-alkanes (38.43-59.22%), while essential oil was also rich in globulol (13.45%) and ß-sesquiphellandrene (9.29%). The content of phenolic compounds in methanolic extract and oil was 3621.62 and 14.4 mg GAE/100 g of dry plant, respectively. Moreover, potential medicinal effects were found in mean of antioxidant activity of this plant measured by using two different assays: radical-scavenging activity and ferric-reducing activity. Samples revealed values ranging from 0.33 to 146.80 µmol TE/100 g for DPPH assay, and from 2.29 to 5414.17 µmol AAE/100 g for FRAP assay.
[Mh] Termos MeSH primário: Antioxidantes/química
Óleos Voláteis/química
Componentes Aéreos da Planta/química
Óleos Vegetais/química
Tripleurospermum/química
[Mh] Termos MeSH secundário: Ácidos Graxos/química
Flavonoides/química
Fenóis/química
Fitosteróis/química
Sesquiterpenos/química
Turquia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Antioxidants); 0 (Fatty Acids); 0 (Flavonoids); 0 (Oils, Volatile); 0 (Phenols); 0 (Phytosterols); 0 (Plant Oils); 0 (Sesquiterpenes)
[Em] Mês de entrada:1505
[Cu] Atualização por classe:141222
[Lr] Data última revisão:
141222
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:141010
[St] Status:MEDLINE
[do] DOI:10.1080/14786419.2014.968156


  2 / 6 MEDLINE  
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[PMID]:21424805
[Au] Autor:Janousková M; Rydlová J; Püschel D; Száková J; Vosátka M
[Ad] Endereço:Department of Mycorrhizal Symbioses, Institute of Botany, Academy of Sciences of the Czech Republic, 252 43 Pruhonice, Czech Republic. martina.janouskova@ibot.cas.cz
[Ti] Título:Extraradical mycelium of arbuscular mycorrhizal fungi radiating from large plants depresses the growth of nearby seedlings in a nutrient deficient substrate.
[So] Source:Mycorrhiza;21(7):641-50, 2011 Oct.
[Is] ISSN:1432-1890
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:The effect of arbuscular mycorrhiza (AM) on the interaction of large plants and seedlings in an early succession situation was investigated in a greenhouse experiment using compartmented rhizoboxes. Tripleurospermum inodorum, a highly mycorrhiza-responsive early coloniser of spoil banks, was cultivated either non-mycorrhizal or inoculated with AM fungi in the central compartment of the rhizoboxes. After two months, seedlings of T. inodorum or Sisymbrium loeselii, a non-host species colonising spoil banks simultaneously with T. inodorum, were planted in lateral compartments, which were colonised by the extraradical mycelium (ERM) of the pre-cultivated T. inodorum in the inoculated treatments. The experiment comprised the comparison of two AM fungal isolates and two substrates: spoil bank soil and a mixture of this soil with sand. As expected based on the low nutrient levels in the substrates, the pre-cultivated T. inodorum plants responded positively to mycorrhiza, the response being more pronounced in phosphorus uptake than in nitrogen uptake and growth. In contrast, the growth of the seedlings, both the host and the non-host species, was inhibited in the mycorrhizal treatments. Based on the phosphorus and nitrogen concentrations in the biomass of the experimental plants, this growth inhibition was attributed to nitrogen depletion in the lateral compartments by the ERM radiating from the central compartment. The results point to an important aspect of mycorrhizal effects on the coexistence of large plants and seedlings in nutrient deficient substrates.
[Mh] Termos MeSH primário: Brassicaceae/crescimento & desenvolvimento
Micélio/crescimento & desenvolvimento
Micorrizas/crescimento & desenvolvimento
Plântulas/crescimento & desenvolvimento
Plântulas/microbiologia
Tripleurospermum/microbiologia
[Mh] Termos MeSH secundário: Biomassa
Brassicaceae/microbiologia
Alimentos
Nitrogênio/metabolismo
Fósforo/metabolismo
Raízes de Plantas/microbiologia
Plântulas/metabolismo
Solo/química
Tripleurospermum/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Soil); 27YLU75U4W (Phosphorus); N762921K75 (Nitrogen)
[Em] Mês de entrada:1201
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:110323
[St] Status:MEDLINE
[do] DOI:10.1007/s00572-011-0372-4


  3 / 6 MEDLINE  
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[PMID]:20795784
[Au] Autor:Chehregani A; Mohsenzadeh F; Mirazi N; Hajisadeghian S; Baghali Z
[Ad] Endereço:Laboratory of Plant Cell Biology, Department of Biology, Bu-Ali Sina University, Hamedan, I.R. Iran. chehregani@basu.ac.ir
[Ti] Título:Chemical composition and antibacterial activity of essential oils of Tripleurospermum disciforme in three developmental stages.
[So] Source:Pharm Biol;48(11):1280-4, 2010 Nov.
[Is] ISSN:1744-5116
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:CONTEXT: Tripleurospermum disciforme (C.A. Mey) Schultz Bip. (Asteraceae) is a widespread biennial species which also has traditional medicinal uses. According to the few recent studies, essential oils of this species exhibit anti-inflammatory, antispasmodic, antiseptic, antifungal, antiulcer, and antioxidant activity. OBJECTIVE: The chemical compositions of the hydrodistilled oils of T. disciforme of Iranian origin are studied in the stages of prior to flowering, flowering, and post flowering, for the first time. Also, we investigated the antibacterial activities of the oils. MATERIALS AND METHODS: The essential oils of air-dried T. disciforme were obtained by hydrodistillation in three different developmental stages and analyzed by gas chromatography-mass spectrometry (GC-MS). The antimicrobial activity of the isolated essential oil, in the three stages, was also investigated against four Gram-positive and four Gram-negative bacteria. RESULTS: Twenty-one components were identified in the essential oils of T. disciforme, and the highest amount of oil was extracted at the flowering stage. The main component of the species in the flowering stage was ß-farnesene (22.46%) and the other major components were ß-sesquiphellandrene (17.85%), p-methoxy-ß-cyclopropylstyrene (16.64%), heptadecane (10.6%), p-methoxy-humulene oxide (6.88%) and benzene acetaldehyde (9.3%). The MIC of essential oil was evaluated from 4 µL ml(-1) against Staphylococcus subtilis and Bacillus cereus to 22 µL ml(-1) against Citrobacter amalonaticus. DISCUSSION AND CONCLUSION: This study demonstrates the occurrence of ß-farnesene/ß-sesquiphellandrene chemotype of T. disciforme in western regions of Iran that are different from previous reports. The findings also showed that the essential oils T. disciforme have excellent antibacterial activities and thus have great potentiality to be used as a resource for natural health products.
[Mh] Termos MeSH primário: Antibacterianos/farmacologia
Óleos Voláteis/química
Óleos Voláteis/farmacologia
Óleos Vegetais/química
Óleos Vegetais/farmacologia
Tripleurospermum/química
[Mh] Termos MeSH secundário: Antibacterianos/química
Antibacterianos/isolamento & purificação
Cromatografia Gasosa-Espectrometria de Massas
Bactérias Gram-Negativas/efeitos dos fármacos
Bactérias Gram-Positivas/efeitos dos fármacos
Irã (Geográfico)
Testes de Sensibilidade Microbiana
Óleos Voláteis/isolamento & purificação
Componentes Aéreos da Planta/química
Componentes Aéreos da Planta/crescimento & desenvolvimento
Óleos Vegetais/isolamento & purificação
Estações do Ano
Tripleurospermum/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Anti-Bacterial Agents); 0 (Oils, Volatile); 0 (Plant Oils)
[Em] Mês de entrada:1103
[Cu] Atualização por classe:140730
[Lr] Data última revisão:
140730
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:100828
[St] Status:MEDLINE
[do] DOI:10.3109/13880201003770143


  4 / 6 MEDLINE  
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[PMID]:19377892
[Au] Autor:Janousková M; Seddas P; Mrnka L; van Tuinen D; Dvorácková A; Tollot M; Gianinazzi-Pearson V; Vosátka M; Gollotte A
[Ad] Endereço:Institute of Botany, Academy of Sciences of the Czech Republic, 252 43, Pruhonice, Czech Republic. janouskova@ibot.cas.cz
[Ti] Título:Development and activity of Glomus intraradices as affected by co-existence with Glomus claroideum in one root system.
[So] Source:Mycorrhiza;19(6):393-402, 2009 Aug.
[Is] ISSN:1432-1890
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:The co-existence of two arbuscular mycorrhizal fungal (AMF) species, Glomus intraradices and Glomus claroideum, in the root systems of plants was investigated in a greenhouse experiment aimed at reconstructing interactions during an early stage of primary succession on a coal-mine spoil bank in Central Europe. Two plant species, Tripleurospermum inodorum and Calamagrostis epigejos, were inoculated either with one or both AMF species. Fungal development, determined by trypan blue and alkaline phosphatase staining as well as by PCR amplification of rRNA genes with species-specific primers, and the expression of five genes with different metabolic functions in the intraradical structures of G. intraradices were followed after 6 and 9 weeks of cultivation. The two AMF closely co-existed in the root systems of both plants possibly through similar colonisation rates and competitivity. Inoculation with the two fungi, however, did not bring any additional benefit to the host plants in comparison with single inoculation; moreover, plant growth depression observed after inoculation with G. claroideum persisted also in mixed inoculation. The expression of all the assayed G. intraradices genes was affected either by host plant or by co-inoculation with G. claroideum. The effects of both factors depended on the time of sampling, which underlines the importance of addressing this topic in time-course studies.
[Mh] Termos MeSH primário: Glomeromycota/crescimento & desenvolvimento
Raízes de Plantas/microbiologia
Poaceae/microbiologia
Tripleurospermum/microbiologia
[Mh] Termos MeSH secundário: Fosfatase Alcalina/metabolismo
Primers do DNA/genética
Europa (Continente)
Perfilação da Expressão Gênica
Genes Fúngicos
Genes de RNAr
Poaceae/crescimento & desenvolvimento
Reação em Cadeia da Polimerase/métodos
Tripleurospermum/crescimento & desenvolvimento
Azul Tripano/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (DNA Primers); EC 3.1.3.1 (Alkaline Phosphatase); I2ZWO3LS3M (Trypan Blue)
[Em] Mês de entrada:0909
[Cu] Atualização por classe:171011
[Lr] Data última revisão:
171011
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:090421
[St] Status:MEDLINE
[do] DOI:10.1007/s00572-009-0243-4


  5 / 6 MEDLINE  
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[PMID]:19070188
[Au] Autor:Bakhtiarian A; Ejtemaimehr S; Strobl S; Pournaghash-Tehrani S; Partoazar A; Ghamami G; Yasa N
[Ad] Endereço:Department of Pharmacology, Medical Sciences, University of Tehran, Tehran, Iran.
[Ti] Título:Inhibition of carrageenan-induced edema by tripleurospermum disciforme extract in rats.
[So] Source:Pak J Biol Sci;10(13):2237-40, 2007 Jul 01.
[Is] ISSN:1028-8880
[Cp] País de publicação:Pakistan
[La] Idioma:eng
[Ab] Resumo:In this research anti-inflammatory effect of Tripleurospermum disciforme extract was studied in rats. The effect of the extract against acute inflammation was studied by hind paw edema test. Intraperitoneal injection of different doses (15, 30, 45, 60, 90 and 120 mg kg(-1)) of Tripleurospermum disciforme which was followed by hind paw carageenan injection 1 h later were investigated. The resultant edema was quantified by measuring changes of diameter of hind foot. After 2, 3, 4 and 6 h we measured the anti-inflammatory effect of Tripleurospermum disciforme extract. Tripleurospermum disciforme extract with doses of 45, 60, 90 and 120 mg kg(-1) and indomethacin 5 mg kg(-1) showed significant effect. It is concluded that Tripleurospermum disciforme extract has anti-inflammatory effect against acute inflammation.
[Mh] Termos MeSH primário: Carragenina/antagonistas & inibidores
Edema/prevenção & controle
Extratos Vegetais/farmacologia
Tripleurospermum/química
[Mh] Termos MeSH secundário: Animais
Anti-Inflamatórios/farmacologia
Carragenina/toxicidade
Relação Dose-Resposta a Droga
Edema/induzido quimicamente
Indometacina/farmacologia
Ratos
Ratos Sprague-Dawley
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Anti-Inflammatory Agents); 0 (Plant Extracts); 9000-07-1 (Carrageenan); XXE1CET956 (Indomethacin)
[Em] Mês de entrada:0901
[Cu] Atualização por classe:150311
[Lr] Data última revisão:
150311
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:081217
[St] Status:MEDLINE


  6 / 6 MEDLINE  
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[PMID]:17304633
[Au] Autor:Cedergreen N; Kudsk P; Mathiassen SK; Streibig JC
[Ad] Endereço:Royal Veterinary and Agricultural University (KVL), Institute of Agricultural Sciences, Højbakkegård Allé 13, 2630 Taastrup, Denmark. ncf@kvl.dk
[Ti] Título:Combination effects of herbicides on plants and algae: do species and test systems matter?
[So] Source:Pest Manag Sci;63(3):282-95, 2007 Mar.
[Is] ISSN:1526-498X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Risk assessment of herbicides towards non-target plants in Europe is currently based solely on tests on algae and floating aquatic plants of Lemna sp. Effects on terrestrial non-target species is not systematically addressed. The purpose of the present study was to compare combination effects of herbicide mixtures across aquatic and terrestrial test systems, and to test whether results obtained in the traditional aquatic test systems can be extrapolated to the terrestrial environment. This was done by evaluating ten binary mixtures of nine herbicides representing the seven most commonly used molecular target sites for controlling broadleaved weeds. Data were evaluated statistically in relation to the concentration addition model, and for selected concentrations to the independent action model. The mixtures were tested on the terrestrial species Tripleurospermum inodorum (L.) Schultz-Bip. (Scentless Mayweed) and Stellaria media (L.) Vill. (Common Chickweed), and on the aquatic species Lemna minor L. (Lesser duckweed) and the alga Pseudokirchneriella subcapitata (Korschikov) Hindak. For the two mixtures of herbicides with the same molecular site of action, the joint effect was additive. For the eight mixtures of herbicides with different sites of action, two of the mixtures were consistently antagonistic across species, while for the remaining six mixtures the joint effect depended on the species tested. This dependence was, however, not systematic, in the sense that none of the species or test systems (terrestrial versus aquatic) had a significantly higher probability of showing synergistic or antagonistic joint effects than others. Synergistic interactions were not observed, but approximately 70% of the mixtures of herbicides with different sites of action showed significant antagonism. Hence, the concentration addition model can be used to estimate worst-case effects of mixtures of herbicides on both terrestrial and aquatic species. Comparing the sensitivity of the species to a 10% spray drift event showed that the terrestrial species were more vulnerable to all herbicides compared with the aquatic species, emphasising the importance of including terrestrial non-target plants in herbicide risk assessment.
[Mh] Termos MeSH primário: Eucariotos/efeitos dos fármacos
Herbicidas/toxicidade
Plantas/efeitos dos fármacos
[Mh] Termos MeSH secundário: Araceae/efeitos dos fármacos
Relação Dose-Resposta a Droga
Combinação de Medicamentos
Medição de Risco
Especificidade da Espécie
Stellaria/efeitos dos fármacos
Testes de Toxicidade
Tripleurospermum/efeitos dos fármacos
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Drug Combinations); 0 (Herbicides)
[Em] Mês de entrada:0705
[Cu] Atualização por classe:101118
[Lr] Data última revisão:
101118
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:070217
[St] Status:MEDLINE



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