Consulta: subjectFacets:"Fusarium moniliforme"
Registros recuperados: 12
Data/hora: 10/06/2024 11:21:59

Relação entre características morfológicas da cariopse e fusariose em milho
Provedor de dados: 86
Autores: 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

Equine leukoencephalomalacia associated with ingestion of corn contaminated with fumonisin B1
Provedor de dados: 59
Autores: Mallmann,Carlos A.; Santurio,Janio M.; Dilkin,Paulo.
This article describes clinical, etiologic and pathologic diagnosis of an outbreak of equine leukoencephalomalacia. Two samples of the corn consumed by the affected horses contained fumonisin B1 at levels of 46 and 53 µg/g and Fusarium moniliforme, a good in vitro mycotoxin producer.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Corn; Leukoencephalomalacia; Fumonisin; Fusarium moniliforme; Chromatography.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141999000300011

Tratamento fungicida de sementes de milho contra fungos do solo e o controle de Fusarium associado às sementes
Provedor de dados: 63
Autores: 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

Grain mold disease of Sorghum bicolor (L.) Moench., caused by Fusarium moniliforme Sheldon and Curvularia lunata (Wakker) Boedijn.
Provedor de dados: 106
Autores: Suparb Teenakul; Thammasak Sommartya; Udom Pupipat.
3 tables
Palavras-chave: Sorghum; Sorghum bicolor; Grain mold disease; Fusarium moniliforme; Curvularia lunata; Pathogenicity; Infection; ข้าวฟ่าง; โรคพืช; โรคราช่อข้าวฟ่าง.
Ano: 1983
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4146

Micoflora asociada a manchas y tizones foliares en trigo (Triticum aestivum L.) de riego en El Bajío, México
Provedor de dados: 115
Autores: 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

Anti-Fusarium moniliforme activity and fumonisin biodegradation by corn and silage microflora
Provedor de dados: 52
Autores: 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

A new alternative to produce gibberellic acid by solid state fermentation
Provedor de dados: 52
Autores: 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

Culture medium for amylase production by toxigenic fungi
Provedor de dados: 52
Autores: 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&lt;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

Mycoflora and aflatoxin/fumonisin production by fungal isolates from freshly harvested corn hybrids
Provedor de dados: 58
Autores: 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

Production of fumonisins by strains of Fusarium moniliforme according to temperature, moisture and growth period
Provedor de dados: 58
Autores: 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

Occurrence of Fusarium moniliforme and fumonisins in kernels of maize hybrids in Venezuela
Provedor de dados: 58
Autores: 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

Desfolha, população de plantas e precocidade do milho afetam a incidência e a severidade de podridões de colmo
Provedor de dados: 65
Autores: 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