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| Registros recuperados: 13 | |
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| Rodrigues,Cristine; Vandenberghe,Luciana Porto de Souza; Teodoro,Juliana; Oss,Juliana Fraron; Pandey,Ashok; Soccol,Carlos Ricardo. |
| Gibberellic acid (GA3) is an important hormone, which controls plant's growth and development. Solid State Fermentation (SSF) allows the use of agro-industrial residues reducing the production costs. The screening of strains (four of Gibberella fujikuoroi and one of Fusarium moniliforme) and substrates (citric pulp, soy bran, sugarcane bagasse, soy husk, cassava bagasse and coffee husk) and inoculum preparation study were conducted in order to evaluate the best conditions to produce GA3 by SSF. Fermentation assays were carried out in erlenmeyers flasks at 29°C, with initial moisture of 75-80%. Different medium for inoculum production were tested in relation to cells viability and GA3 production by SSF. F. moniliforme LPB 03 and citric pulp were chosen for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gibberellic acid; Fusarium moniliforme; Solid state fermentation; Inoculum; Agro-industrial residues. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700023 |
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| LÓPEZ-MENESES,Ana Karenth; PLASCENCIA-JATOMEA,Maribel; LIZARDI-MENDOZA,Jaime; ROSAS-BURGOS,Ema Carina; LUQUE-ALCARAZ,Ana Guadalupe; CORTEZ-ROCHA,Mario Onofre. |
| Abstract Essential oils (EO) of eucalyptus (Eucalyptus globulus L.), thymus (Thymus capitatus L.) pirul (Schinus molle L.) were evaluated for their efficacy to control Aspergillus parasiticus and Fusarium moniliforme growth and their ability to produce mycotoxins. Data from kinetics radial growth was used to obtain the half maximal inhibitory concentration (IC50). The IC50 was used to evaluate spore germination kinetic and mycotoxin production. Also, spore viability was evaluated by the MTT assay. All EO had an effect on the radial growth of both species. After 96 h of incubation, thymus EO at concentrations of 1000 and 2500 µL L–1 totally inhibited the growth of F. moniliforme and A. parasiticus, respectively. Eucalyptus and thymus EO significantly... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antifungal properties; Essential oils; Mycotoxin production; Aspergillus parasiticus; Fusarium moniliforme. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612015000400664 |
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| Camilo,Simone B.; Ono,Carlos José; Ueno,Yoshio; Hirooka,Elisa Y.. |
| Studies were carried out to isolate microorganisms from corn and silage screened for their ability to inhibit F. moniliforme growth (strain 113F) in association with fumonisin detoxification. Among 150 isolates four Gram-positive bacilli and one yeast with inhibitory activity were selected. The inhibition zone ranged from 50 to 72.5 mm using cultures, and from 25 to 52.5mm for crude alcoholic extract. The isolates S9, S10, S69 (sporulated bacilli) and SE3071 (yeast) degraded 43, 48, 83 and 57% of the initial FB1 concentration, respectively. The pH increased gradually in the medium during incubation for biodegradation process. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fusarium moniliforme; Fumonisin; Biodegradation. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000200004 |
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| Figueira,Edson Luiz Zangrando; Hirooka,Elisa Yoko. |
| Mycelial growth and amylase production by a mycotoxigenic strain of Fusarium moniliforme and Aspergillus flavus were evaluated in a culture medium containing starch, glycerol, wheat bran or corn. With emphasis on corn, different fractions composed by germ, degermed seed, starch, milky stage corn and the respective starch or supernatant fraction were analyzed for F. moniliforme growth . The medium composed of milky stage corn supernatant promoted the best mycelial growth (p<0.05), and it was used to prepare amylase production medium in the next step. The medium composed with 2% ground corn in milky stage corn supernatant (350g of milky stage corn blended with 250mL water and centrifuged) promoted the highest amylase production, which was at the 10th day... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amylase; Fusarium moniliforme; Aspergillus flavus. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000500003 |
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| Blum,Luiz Eduardo Bassay; Sangoi,Luis; Amarante,Cassandro Vidal Talamini do; Arioli,Cristiano João; Guimarães,Letícia Simone. |
| As relações entre fonte e dreno interferem sobre a ocorrência de podridões de colmo na cultura do milho (Zea mays). O estudo foi conduzido em Lages, SC, para avaliar o efeito da desfolha, população de plantas e híbridos sobre as podridões do colmo do milho. O delineamento experimental foi de blocos ao acaso com parcelas sub-subdivididas e três repetições. Os híbridos P32R21 (superprecoce), Premium (precoce) e C333B (tardio) foram testados sem desfolha e com 50% de desfolha no estágio de espigamento nas populações de 25.000, 50.000, 75.000 e 100.000 plantas ha-1. Avaliaram-se a incidência e a severidade das podridões do colmo causadas por Colletotrichum graminicola, Diplodia maydis e Fusarium moniliforme. O híbrido P32R21 foi o mais afetado pelos fungos... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Colletotrichum graminicola; Diplodia maydis; Fusarium moniliforme. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782003000500003 |
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| Mariscal-Amaro,Luis A.; Solís-Moya,Ernesto; Leyva-Mir,Santos G.; Anaya-López,José L.; Villaseñor-Mir,Héctor E.. |
| Resumen La producción de trigo (Triticum aestivum L.) bajo riego en la región de El Bajío, México, es afectada principalmente la roya de la hoja (Puccinia triticina Eriks.) y la roya lineal amarilla (Puccinia striiformis f. sp. tritici). En años recientes, en esta región se observaron otros síntomas como tizones y manchas foliares que también limitan la productividad de las variedades de trigo sembradas. Para identificar a los hongos asociados con esta sintomatología, en este estudio se recolectaron hojas con síntomas de tizones y manchas foliares en 12 municipios de los estados de Guanajuato, Michoacán y Jalisco, en los ciclos agrícolas otoño-invierno 2012-2013 y 2013-2014. La identificación de los hongos se realizó con la morfología, la amplificación y... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bipolaris sorokiniana; Helminthosporium sativum; Alternaria alternata; Septoria tritici; Fusarium proliferatum; Fusarium moniliforme. |
| Ano: 2017 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952017000200189 |
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| Almeida,Adriana P.; Corrêa,Benedito; Mallozzi,Marisa A. B.; Sawazaki,Eduardo; Soares,Lúcia M. Valente. |
| The mycoflora of 3 hybrids of freshly harvested corn grains collected from three regions of the state of São Paulo, Brazil (Assis, Capão Bonito and Ribeirão Preto) was investigated. A total of 66 samples were analyzed focusing on the influence of abiotic factors (moisture content, water activity, temperature and rainfall) on both the prevalence of Aspergillus flavus and Fusarium moniliforme, and the ability of these genera isolates to produce aflatoxins and fumonisins, respectively. In the three surveyed regions, the fungal population comprised mainly Fusarium spp., Penicillium spp., Aspergillus spp. and 2 others filamentous fungal genera, which were isolated from corn kernels showing water activity of 0.30 to 0.99 and moisture content of 5.0% to 20.2%.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aflatoxins; Aspergillus flavus; Fumonisins; Fusarium moniliforme; Corn. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000400016 |
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| Mazzani,Claudio; Borges,Orángel; Luzón,Odalís; Barrientos,Venancio; Quijada,Pablo. |
| Fusarium moniliforme (FM) incidence and fumonisins (FUM) content were determined in white kernel samples of maize hybrids, harvested in farms of Guárico and Portuguesa states, Venezuela. FM incidence was estimated in subsamples placed on a malt-salt-agar medium. Values in the range of 0-15 % were considered low, from 15-30% intermediate, and more than 30% high. FUM content was quantified through specific immunoassay (Fumonitest, VICAM Sci. Tech., USA) and values above 1 ppm were considered high. The hybrids were compared using a completely randomized design and results were subjected to analysis of variance and mean comparisons. The correlation between FUM content and FM incidence was also estimated. FM and FUM were detected in all of the 89 samples. Mean... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fusarium moniliforme; Fumonisins; Venezuelan maize; Hybrids. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000400018 |
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| Dilkin,Paulo; Mallmann,Carlos A.; Almeida,Carlos A.A. de; Stefanon,Eliza B.; Fontana,Fernanda Z.; Milbradt,Elisane L.. |
| Production of fumonisins B1 (FB1) and B2 (FB2) by two Brasilian strains (LAMIC 2999/96 and 113F) and one American strain (NRRL 13616) of Fusarium moniliforme were evaluated in laboratory cultures subjected to different temperatures (20, 25, and 30ºC), and moisture contents (25, 34, and 42%) on corn substrate. The cultures were grown during 10, 20, 30, 45, and 60 days, totalizing 135 treatments with two repetitions for each one. The fumonisins were extracted with acetonitrile/water. The clean-up with end-capped C18 silica (C18ec) cartridges and fumonisin derivatization with o-phtaldialdeyde were carried out through an automated sample processor system (ASPEC), followed by quantification of the toxins through HPLC. Fumonisin production varied widely,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fungi; Fusarium moniliforme; Mycotoxins; Fumonisins; Abiotic factors. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000200003 |
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| Costa,Raquel Silva; Môro,Fabíola Vitti; Môro,José Roberto; Silva,Herberte Pereira da; Panizzi,Rita de Cássia. |
| Fusarium moniliforme causa sérios prejuízos no rendimento do milho. Suspeita-se que a entrada do fungo na cariopse ocorra pela cicatriz do estilete, e que este fato e o nível de infestação por F. moniliforme estejam relacionados com características morfológicas da cariopse. O objetivo deste trabalho foi identificar características morfológicas que conferem resistência a F. moniliforme em cariopses de milho. Cariopses de seis linhagens de milho, com e sem inoculação do patógeno, foram avaliadas utilizando-se de estereomicroscópio e o microscópio eletrônico de varredura. Características morfológicas da cariopse, tais como: tegumento com saliências e reentrâncias acentuadas, pericarpo pouco espesso, amido menos compacto e presença do canal estilar favorecem a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Fusarium moniliforme; Infestação; Microscopia; Morfologia vegetal. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2003000100004 |
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| Pinto,Nicésio Filadelfo Janssen de Almeida. |
| As sementes de milho infectadas por fungos constitue importantes fontes de inóculos, cujos patógenos podem causar podridões de sementes, morte de plântulas em pré e pós-emergência e podridões radiculares. Ademais, em condição de solo frio e úmido há maior exposição das sementes ao ataque de fungos do solo. Assim, estudou-se a eficiência dos fungicidas captan (120,0; 90,0 e 60,0 g i.a. 100 kg-1 de sementes), thiram (140,0) formulado em PM e SC, thiabendazole (20,0), thiram + thiabendazole (75,0 + 10,0) e carboxin + thiram (75,0 + 75,0) no tratamento de sementes de milho da cultivar BR 106. Foram avaliadas as características : sanidade de sementes; emergência de plântulas no campo, em solo esterilizado; bem como as emergências nos testes de frio em solo de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Fusarium moniliforme; Germinação; Patologia de semente. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162000000300017 |
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| Registros recuperados: 13 | |
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