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| Registros recuperados: 44 | |
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| Guerra,Felipe Q.S.; Araújo,Rodrigo S.A.; Sousa,Janiere P.; Silva,Viviane A.; Pereira,Fillipe O.; Mendonça-Junior,Francisco J.B.; Barbosa-Filho,José M.; Pereira,Julio Abrantes; Lima,Edeltrudes O.. |
| Abstract Fungal infections have become a concern for health professionals, and the emergence of resistant strains has been reported for all known classes of antifungal drugs. Among the fungi causing disease, we highlight those that belong to the genus Aspergillus. For these reasons, the search for new antifungals is important. This study examines the effects of a coumarin derivative, 4-acetatecoumarin (Cou-UMB16) both alone and together with antifungal drugs, and its mode of action against Aspergillus spp. Cou-UMB16 was tested to evaluate its effects on mycelia growth, and germination of Aspergillus spp. fungal conidia. We investigated its possible action on cell walls, on the cell membrane, and also the capacity of this coumarin derivative to enhance the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coumarin; Antifungal activity; A. flavus; A. fumigatus; Mode of action. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000200407 |
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| Fagundes,Miriã Cristina Pereira; Oliveira,Adelson Francisco de; Carvalho,Vicente Luiz de; Ramos,José Darlan; Santos,Verônica Andrade dos; Rufini,José Carlos Moraes. |
| ABSTRACT The aim of this study was to evaluate the antifungal action of ethanolic extracts of avocado seeds, by conducting two experiments in the laboratory of plant pathology of EPAMIG SUL/Lavras, MG, Brazil, in a completely randomized design with three replicates. The first consisted of the following treatments ('Breda' 3%, 'Breda' 2%, 'Margarida' 3%, 'Margarida' 2%, Control, and Ethanol) testing its inhibitory effect on two fungal species (Colletotrichum gloeosporioides and Monilinia fructicola) and the second consisted of different concentrations of extracts (0%, 0.25%, 0.50%, 0.75%, 1.0%, 1.5%, and 2.0%) on the fungus F fructicola. The evaluations were performed at three times (7, 14, and 21 days of incubation) by measurements of the mycelial diameter... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antifungal activity; Colletotrichum gloeosporioides; Monilinia fructicola; Postharvest. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100204 |
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| KHURSHID,S.; JAVAID,A.; SHOAIB,A.; JAVED,S.; QAISAR,U.. |
| ABSTRACT: Antifungal potential of aerial parts of an allelopathic grass Cenchrus pennisetiformis (Hochst. & Steud.) Wipff. was evaluated against Fusarium oxysporum f. sp. lycopersici Snyder & Hansen, a fungal pathogen causing wilt disease in tomato (Solanum lycopersicum L.). Different concentrations (1% to 6%) of methanolic leaf, stem and inflorescence extract of the grass significantly reduced fungal biomass by 40-88%, 13-89%, and 26-76%, respectively. Methanolic shoot (leaf + stem) extract was fractionated using four organic solvents viz. n-hexane, chloroform, ethyl acetate and n-butanol. All the sub-fractions of methanolic shoot extract showed remarkable antifungal potential to variable extents. Different concentrations (1.56-200 mg mL-1) of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antifungal activity; GC-MS analysis; Methanolic extracts. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100223 |
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| BANARAS,S.; JAVAID,A.; SHOAIB,A.; AHMED,E.. |
| ABSTRACT Leaves, stems, roots and inflorescence of the asteraceous weed Circium arvense were extracted in methanol for two weeks. Methanol was evaporated in a rotary evaporator. Different concentrations (1, 2, 3, 4 and 5%) of methanolic extracts were prepared, and their antifungal activities were studied against Macrophomina phaseolina, using malt extract broth as growth medium. In general, extracts of all plant parts showed antifungal activities to variable extents. The highest antifungal activity occurred due to methanolic extract of leaves, followed by stem and root extracts, resulting in 10-74%, 6-57% and 11-39% reduction in fungal biomass over control, respectively. Inflorescence extract showed the least antifungal activity, resulting in 2-30%... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antifungal activity; Asteraceous weed; Cirsium arvense; Macrophomina phaseolina. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100216 |
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| Faria,Terezinha de Jesus; Ferreira,Rafael Sottero; Yassumoto,Lidiane; Souza,José Roberto Pinto de; Ishikawa,Noemia Kazue; Barbosa,Aneli de Melo. |
| An investigation of antifungal activity of the essential oil obtained by steam-distillation (1.1% w/w) of the aerial parts of Ocimum gratissimum and of an ethanolic extract from the steam-distillation residue was carried out using the agar diffusion method. The results revealed that the essential oil inhibited the growth of all fungi tested, including the phytopathogens, Botryosphaeria rhodina, Rhizoctonia sp. and two strains of Alternaria sp., while the extract from the residue was inactive. The essential oil was subjected to TLC bioautography used to detect fungitoxic constituents. The compound that showed antifungal activity was isolated and identified as eugenol. GC/MS analysis showed that eugenol was the main constituent of the essential oil studied.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ocimum gratissimum; Antifungal activity; Eugenol; Phytopathogenic fungi. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000700002 |
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| Santos,Maximillan Leite; Magalhães,Chaiana Froés; Rosa,Marcelo Barcellos da; Santos,Daniel de Assis; Brasileiro,Beatriz Gonçalves; Carvalho,Leandro Machado de; Silva,Marcelo Barreto da; Zani,Carlos Leomar; Siqueira,Ezequias Pessoa de; Peres,Rodrigo Loreto; Andrade,Anderson Assunção. |
| The effects of different solvents and extraction techniques upon the phytochemical profile and anti-Trichophyton activity of extracts from Piper aduncum leaves were evaluated. Extract done by maceration method with ethanol has higher content of sesquiterpenes and antifungal activity. This extract may be useful as an alternative treatment for dermatophytosis. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antifungal activity; Piper aduncum L.; Dermatophytes; Trichophyton; Extraction techniques. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000400035 |
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| Johann,Susana; Mendes,Beatriz G; Missau,Fabiana C; Resende,Maria A. de; Pizzolatti,Moacir G. |
| Crude extracts and fractions of five species of Polygala - P. campestris, P. cyparissias, P. paniculata, P. pulchella and P. sabulosa - were investigated for their in vitro antifungal activity against opportunistic Candida species, Cryptococcus gattii and Sporothrix schenckii with bioautographic and microdilution assays. In the bioautographic assays, the major extracts were active against the fungi tested. In the minimal concentration inhibitory (MIC) assay, the hexane extract of P. paniculata and EtOAc fraction of P. sabulosa showed the best antifungal activity, with MIC values of 60 and 30 µg/mL, respectively, against C. tropicalis, C. gattii and S. schenckii. The compounds isolated from P. sabulosa prenyloxycoumarin and 1,2,3,4,5,6-hexanehexol displayed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Polygalaceae; Polygala species; Antifungal activity; Rutin; Α-spinasterol. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000300027 |
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| Shentu,Xuping; Zhan,Xiaohuan; Ma,Zheng; Yu,Xiaoping; Zhang,Chuanxi. |
| The endophytic fungus strain 0248, isolated from garlic, was identified as Trichoderma brevicompactum based on morphological characteristics and the nucleotide sequences of ITS1-5.8SITS2 and tef1. The bioactive compound T2 was isolated from the culture extracts of this fungus by bioactivity-guided fractionation and identified as 4β-acetoxy-12,13-epoxy-Δ9-trichothecene (trichodermin) by spectral analysis and mass spectrometry. Trichodermin has a marked inhibitory activity on Rhizoctonia solani, with an EC50 of 0.25 µgmL-1. Strong inhibition by trichodermin was also found for Botrytis cinerea, with an EC50 of 2.02 µgmL-1. However, a relatively poor inhibitory effect was observed for trichodermin against Colletotrichum lindemuthianum (EC50 = 25.60 µgmL-1).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Trichoderma brevicompactum; Garlic; Endophytic fungus; Trichodermin; Antifungal activity. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000100036 |
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| Anibal,Paula Cristina; Peixoto,Iza Teixeira Alves; Foglio,Mary Ann; Höfling,José Francisco. |
| Ethanolic crude extracts prepared from the arils and seeds, pericarp, peels and from the whole fruit of Punica granatum, known as pomegranate, had their antifungal activity tested against Candida spp. The ethanolic crude extracts were analyzed by Mass Spectrometry and yielded many compounds such as punicalagin and galladydilacton. The extracts from the pericarp and peel showed activity against Candida spp., with MICs of 125 µg/mL. The effect of pericarp and peel extracts upon the morphological and structure of C. albicans and C. krusei were examined by scanning and transmission electron microscopy, with the visualization of an irregular membrane and hyphae, formation of vacuoles and thickening of the cell wall. The data obtained revealed potential... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Punica granatum; Punicalagin; Antifungal activity; Candida spp.; Electron microscopy. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000300027 |
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| Tsuzuki,Joyce K.; Svidzinski,Terezinha I.E.; Shinobu,Cristiane S.; Silva,Luiz F.A.; Rodrigues-Filho,Edson; Cortez,Diógenes A.G.; Ferreira,Izabel C.P.. |
| Extracts from the dried pericarp of Sapindus saponaria L. (Sapindaceae) fruits were investigated for their antifungal activity against clinical isolates of yeasts Candida albicans and C. non-albicans from vaginal secretions of women with Vulvovaginal Candidiasis. Four clinical isolates of C. albicans, a single clinical isolated of each of the species C. parapsilosis, C. glabrata, C. tropicalis, and the strain of C. albicans ATCC 90028 were used. The hydroalcoholic extract was bioactivity-directed against a clinical isolate of C. parapsilosis, and showed strong activity. The n-BuOH extract and one fraction showed strong activity against all isolates tested. Further column-chromatography on silica gel separation of this fraction afforded two pure triterpene... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sapindaceae; Sapindus saponaria; Saponins; Antifungal activity; Candida. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652007000400002 |
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| Silva,Cristiane de Bona da; Guterres,Sílvia S.; Weisheimer,Vanessa; Schapoval,Elfrides E.S.. |
| Superficial mycoses of the skin are among the most common dermatological infections, and causative organisms include dermatophytic, yeasts, and non-dermatophytic filamentous fungi. The treatment is limited, for many reasons, and new drugs are necessary. Numerous essential oils have been tested for both in vitro and in vivo antifungal activity and some pose much potential as antifungal agents. By using disk diffusion assay, we evaluated the antifungal activity of lemongrass oil and citral against yeasts of Candida species (Candida albicans, C. glabrata, C. krusei, C. parapsilosis and C. tropicalis). This study showed that lemongrass oil and citral have a potent in vitro activity against Candida spp. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lemongrass oil; Citral; Antifungal activity; Candida spp. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000100014 |
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| JAVAID,A.; AFZAL,L.; SHOAIB,A.. |
| ABSTRACT Macrophomina phaseolina, a soil-borne plant pathogen, has the ability to cause diseases in about 500 plant species. Unfortunately, so far no registered fungicide is available against this fungal pathogen. In the present study, different extracts of Sisymbrium irio, a weed of family Brassicaceae, were tested for evaluation of their antifungal activity against M. phaseolina. In screening bioassays, antifungal activity of methanolic extracts of 1% to 6% concentrations of different parts (leaf, stem, root and fruit) of the weed was assessed against the fungal pathogen. Methanolic leaf and root extracts significantly reduced fungal biomass up to 59% and 69% over control, respectively. Methanolic leaf and root extracts were further partitioned using... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antifungal activity; London rocket; Plant extracts. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100255 |
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| Souza,Lúcia Kioko Hasimoto e; Oliveira,Cecília Maria Alves de; Ferri,Pedro Henrique; Santos,Suzana Costa; Oliveira Júnior,Juldásio Galdino de; Miranda,André Thiago Borges; Lião,Luciano Morais; Silva,Maria do Rosário Rodrigues. |
| Ethanolic extracts from leaves of Hyptis ovalifolia, H. suaveolens, H. saxatilis, Hyptidendrum canum, Eugenia uniflora, E. dysenterica, Caryocar brasiliensis and Lafoensia pacari were investigated for their antifungal activity against dermatophytes. The most effective plants were H. ovalifolia and E. uniflora, while Trichophyton rubrum was the most sensitive among the four dermatophytes species evaluated. This study has demonstrated antifungal properties of Brazilian Cerrado plant extracts in "in vitro" assays. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dermatophytes; Antifungal activity; Plant extracts; Susceptibility tests. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000300012 |
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| Chami,N.; Chami,F.; Bennis,S.; Trouillas,J.; Remmal,A.. |
| Carvacrol and eugenol, the main (phenolic) components of essential oils of some aromatic plants, were evaluated for their therapeutic efficacy in the treatment of experimental oral candidiasis induced by Candida albicans in immunosuppressed rats. This anticandidal activity was analyzed by microbiological and histopathological techniques, and it was compared with that of nystatin, which was used as a positive control. Microbiologically, carvacrol and eugenol significantly (p<0.05) reduced the number of colony forming units (CFU) sampled from the oral cavity of rats treated for eight consecutive days, compared to untreated control rats. Treatment with nystatin gave similar results. Histologically, the untreated control animals showed numerous hyphae on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carvacrol; Eugenol; Experimental oral candidiasis; Antifungal activity; Essential oils. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702004000300005 |
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| Registros recuperados: 44 | |
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