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| Registros recuperados: 348 | |
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| Moraes,Aurea Maria Lage de; Junqueira,Angela Cristina Vieira; Celano,Valéria; Costa,Gisela Lara da; Coura,José Rodrigues. |
| This paper reports a study on the mycobiota in the digestive tract of four important species of triatomines: Rhodnius prolixus, R. neglectus, Diptelanogaster maximus and Panstrongylus megistus. The digestive tracts of 90 adults and 425 nymphs of these four triatomine species were studied and 365 fungal strains were isolated. The genera with the greatest number of species were Aspergillus, Penicillium (14 species in each genus), Acremonium and Cladosporium (three species in each genus), and the most frequent species, in decreasing order, were Aspergillus awamori, Penicillium corylophilum, Cladosporium herbarum and Aspergillus niger. It was concluded that, among the isolated fungi, Aspergillus niger and Penicillium corylophilum might be part of the natural... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aspergillus spp; Fungi; Insect's digestive tract; Mycoflora; Penicillium spp; Triatomines. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000300003 |
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| Guimarães,Luis Henrique S.; Peixoto-Nogueira,Simone C.; Michelin,Michele; Rizzatti,Ana Carolina S.; Sandrim,Valéria C.; Zanoelo,Fabiana F; Aquino,Ana Carla M.M.; Junior,Altino B.; Polizeli,Maria de Lourdes T. M.. |
| Many enzymes produced by fungi have relevant biotechnological applications in several industrial areas. The purpose of this study was to collect and isolate filamentous fungi from soil and humus, plants and sugar cane bagasse of different regions of the São Paulo state. Forty isolates were examined for their ability to produce xylanase, glucose-oxidase, alkaline phosphatase, acid phosphatase, phytase, pectinase and amylase. Among these, twenty three isolates exhibited enzymatic potential. The xylanases produced by two of these isolates (Aspergillus caespitosus and A. phoenicis) showed good potential for pulp bleaching. Among seventeen isolates, at least three produced high levels of glucose-oxidase, being Rhizopus stolonifer and A. versicolor the best... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phosphatase; Xylanase; Glucose oxidase; Pectinase; Amylase; Rhizopus microsporus var. rhizopodiformis; Fungi. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000400014 |
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| Kujbida,Paula; Maia,Patrícia Penido; Araújo,Ariadne Naama de; Mendes,Leonardo Daniel; Oliveira,Mariana Lepri de; Silva-Rocha,Walicyranison Plinio; Brito,George Queiroz de; Chaves,Guilherme Maranhão; Martins,Isarita. |
| In the present study, the occurrence of fungi and aflatoxins (AFs) in peanut and cashew nut samples was investigated. Mycological analysis revealed the presence of fungi in 58.8% of samples, and assessment of AFs by chromatographic methods revealed that 52.9% were contaminated by AFs. AFB1 was the principal component in all AF-contaminated samples, with a mean level of 14.0, and 1.08 µg/kg in peanut and cashew nut, respectively. Eleven samples (32.4%) exceeded the total AF maximum level (4 μg/kg) and 8 samples (23.5%) exceeded the AFB1 (2 μg/kg) established by the European Commission. Our findings suggest that the incidence of AFs emphasizes the need for regular monitoring and a more stringent food safety system to control AFs at the lowest possible levels... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aflatoxin; Peanut; Cashew nut; Fungi; Risk assessment. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502019000100502 |
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| Santelices,Rómulo; Espinoza,Sergio; Brunel,Nidia; Palfner,Gotz. |
| Suillus luteus is the most important wild edible ectomycorrhizal mushroom harvested and exported in Chile. This introduced species forms mycorrhizal symbiosis with Pinus radiata, the most important exotic forest tree. To obtain optimized protocols for the controlled infection of P. radiata trees with this species, it is important to determine the appropriate culture conditions. Therefore, we studied the effect of the geographical origin (three localities from the Maule Region of Chile), culture media (Modified Melin and Norkrans (MMN) and Malt Extract Agar (MEA) 2%), and pH (5.0, 5.8, and 6.5) on the in vitro growth dynamics of S. luteus over 37 days. The results showed significant differences in the growth rate and colony diameter as a consequence of its... |
| Tipo: Journal article |
Palavras-chave: Ectomycorrhizal; Edible fungi; Fungi; Pinus radiata; Suillus luteus. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000200013 |
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| Rocha,Marcos Fábio Gadelha; Alencar,Lucas Pereira de; Brilhante,Raimunda Sâmia Nogueira; Sales,Jamille de Alencar; Ponte,Yago Brito de; Rodrigues,Pedro Henrique de Aragão; Sampaio,Célia Maria de Souza; Cordeiro,Rossana de Aguiar; Castelo-Branco,Débora de Souza Collares Maia; Oliveira,Francisco Carlos de; Barbosa,Francisco Geraldo; Teixeira,Carlos Eduardo Cordeiro; Paiva,Manoel de Araújo Neto; Bandeira,Tereza de Jesus Pinheiro Gomes; Moreira,José Luciano Bezerra; Sidrim,José Júlio Costa. |
| This study aimed to evaluate the antifungal activity of M. oleifera extracts against fungi isolated from farmed prawns and test the toxicity of the extracts on larvae of Macrobrachium amazonicum. The ethanol extracts of pods, seeds, leaves, stems and flowers and chloroform extract of flowers of M. oleifera were tested against 14 strains of Candida spp. and 10 strains of Hortaea werneckii isolated from farming water and the digestive tract of M. amazonicum. Antifungal activity was determined by microdilution, based on the M27-A3 and M38-A2 CLSI documents. Toxicity was evaluated by exposing larvae of M. amazonicum at concentrations between 10-1000mg mL-1, counting dead larvae (CL50) after 24 hours. The best results were verified with the chloroform extract... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquaculture; Fungi; Prawn; Moringa oleifera; Antimicrobial. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014001202197 |
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| Amaral,Daniel Rufino; Oliveira,Denilson Ferreira; Campos,Vicente Paulo; Pantaleão,José Antônio; Carvalho,Douglas Antônio de; Nunes,Alexandro da Silva. |
| As nematodes cause great damage to Brazilian coffee production, effective methods to control these parasites are necessary. In a previous work Allium cepa L., Cajanus cajan (L.) Mill., Crotalaria juncea L., Ficus elastica Roxb., Ruta graveolens L., Stylosanthes guianensis Aubl., Leucaena leucocephala (Lam.) Dewit., Brachiaria decumbens Stapf., Catharanthus roseus G. Don, Tagetes minuta L., Ricinus communis L. and Coffea arabica L. produced active substances against Meloidogyne exigua Goeldi, a nematode widely disseminated through Brazilian coffee fields. Thus, aqueous extracts of such plants, collected in a different season from that of the previous work, as well as crude metabolites produced in liquid medium by Fusarium moniliforme Shelden and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fungi; Heteroderidae; Nematicide; Plant extract; Tylenchida. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542009000700027 |
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| Chalfoun,Sára Maria; Pereira,Marcelo Cláudio; Resende,Mario Lúcio V.; Angélico,Caroline Lima; Silva,Rozane Aparecida da. |
| The effect of ten powdered spice plants was evaluated at the concentration of 1, 2, 3 and 4% to observe the mycelial growth and sporulation of Aspergillus niger and Eurotium repens. The spices were added to the culture media PDA and CYA20S. Clove completely inhibited the mycelial growth of the tested fungi. The other spices: cinnamon, garlic, thyme, mint, anis, oregano and onion were, in a decreasing order, promising antifungals. Bay leaf and basil did not show a pronounced fungistatic effect. The antitoxigenic potential of the spices was tested against one aflatoxin-producing strain of AspergiIIus flavus. The spices were tested at the same concentrations previously mentioned and were added to the culture medium YES, appropriate for the production of those... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Spices; Aflatoxins; Control; Fungi. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542004000400018 |
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| Registros recuperados: 348 | |
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