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| Registros recuperados: 97 | |
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| Robeson,James; Turra,Gabriel; Huber,Karen; Borie,Consuelo. |
| Background Lytic bacteriophages are bacterial viruses that upon infection kill their host cells and therefore have re-emerged as biological control agents of bacterial pathogens, particularly in the field of food related infections. Here, we investigated the stability in different food matrices of five phage isolates capable of controlling the foodborne pathogen Salmonella enterica serovar Enteritidis (SE). Results We found that two phages, originally isolated from food sources, were up to 5 logs more stable than three phages isolated from sewage, in ten food matrices (fresh and processed) at both 4°C and 18°C. Conclusion Lytic phages isolated from contaminated food sources seem to be a better choice when structuring phage cocktails to be used in the... |
| Tipo: Journal article |
Palavras-chave: Biocontrol; Foodstuffs; Phage. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582014000400008 |
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| Assis,Sayonara M.P.; Mariano,Rosa L.R.; Michereff,Sami J.; Silva,Gil; Maranhão,Elizabeth A.A.. |
| Twenty yeast isolates, obtained from cabbage phylloplane, were evaluated for antagonistic activity against Xanthomonas campestris pv. campestris, in field. Plants of cabbage cv. Midori were pulverized simultaneously with suspensions of antagonists and pathogen. After 10 days, plants were evaluated through percentage of foliar area with lesions. Percentage of disease severity reduction (DSR%) was also calculated. Yeast isolates LR32, LR42 and LR19 showed, respectively, 72, 75 and 79% of DSR. These antagonists were tested in seven different application periods in relation to pathogen inoculation (T1=4 d before; T2=simultaneously; T3=4 d after; T4=4 d before + simultaneously; T5=4 d after + simultaneously; T6=4 d before + 4 d after; T7=4 d before +... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Xanthomonas campestris pv. campestris; Cabbage; Biocontrol; Yeasts. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141999000300002 |
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| Cruz-Martín,Mileidy; Sánchez-García,Cynthia; Acosta-Suárez,Mayra; Leiva-Mora,Michel; Hernández Durán,Yosbel; Roque,Berkis; Alvarado-Capó,Yelenys. |
| Se evaluó el control in vitro de Burkholderia cepacia (cepa CCIBP-E-556), Serratia plymuthica (cepa ATCC 1270) y Bacillus subtilis (cepa ATCC 6051), sobre Macrophomina phaseolina (Tassi) Goid, utilizando el método de cultivo dual.Se midió el radio de la colonia del hongo y se determinó el porcentaje de inhibición del crecimiento radial. B. cepacia produjo el mayor efecto sobre el aislado de M. phaseolina, provocando un porcentaje de inhibición del 43,5%, y ocasionando cambios en la apariencia del micelio, que se observaron en la zona de inhibición con el uso del microscópico óptico. Por su parte, S. plymuthica y B. subtilis provocaron valores de inhibición del crecimiento micelial en M. phaseolina por debajo del 10%, lo que indica que dichas cepas no... |
| Tipo: Journal article |
Palavras-chave: Actividad antifúngica; Biocontrol; Burkholderia cepacia; Serratia plymuthica; Bacillus subtilis; Frijol; Phaseolus vulgaris; Fitopatógeno. |
| Ano: 2014 |
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522014000100009 |
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| Garcia,Roxana; Alves,Eliomara S.S.; Santos,Mirella P.; Aquije,Glória M.F. Viégas; Fernandes,A. Alberto R.; Santos,Reginaldo B. dos; Ventura,Jose A.; Fernandes,Patricia M.B.. |
| Banana, papaya and pineapple are the most consumed tropical fruits in the world, being Brazil one of the main producers. Fungi Colletotrichum musae, Colletotrichum gloeosporioides and Fusarium subglutinans f.sp. ananas cause severe post harvest diseases and losses in fruits quality. The aim of this work was to evaluate the effectiveness of five monoterpenes to inhibit the mycelial growth and conidia germination of these three phytopathogens. The monoterpenes citral, citronellal, L-carvone, isopullegol and a-pinene were diluted in ethanol to final concentrations from 0.2 to 1%. All monoterpenes were found to inhibit the growth of the three studies fungi in a dose-dependent manner. Citral was the most effective of the oils tested and showed potent fungicidal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biocontrol; Essential oils; Banana; Papaya; Pineapple; Plant diseases. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000100032 |
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| Hernández-Castillo,FD; Aguirre-Aguirre,Adalberto; Lira-Saldivar,RH; Guerrero-Rodríguez,E; Gallegos-Morales,G. |
| Mediante experimentos de laboratorio e invernadero se analizó la bioeficacia de cinco cepas de Bacillus spp.; de la mezcla de los bioproductos quitosan y extracto de Larrea tridentata, así como de cinco funguicidas sintéticos contra el hongo Alternaria dauci Kühn. Además, se determinó el efecto de estos compuestos en el crecimiento del cultivo de zanahoria. Los resultados obtenidos mostraron que las cepas de la bacteria Bacillus (B3, B9, B15 y la combinación de éstas), así como la mezcla quitosan- Larrea estimularon el desarrollo de la zanahoria, ya que ésta alcanzó mayor grosor, longitud y peso, con respecto al testigo y a los demás tratamientos. La cepa B3 resultó ser la que más promovió el crecimiento de zanahoria, ya que reportó valores superiores en... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacillus subtilis; Biocontrol; Quitosan; Daucus carota; Larrea tridentata. |
| Ano: 2006 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572006000100009 |
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| MEDEIROS, F. H. V.; MARTINS, S. J.; ZUCCHI, T. D.; MELO, I. S. de; BATISTA, L. R.; MACHADO, J. da C.. |
| Mycotoxins are produced by the secondary metabolism of many fungi and can be found in almost 25% of the world?s agricultural commodities. These compounds are toxic to humans, animals, and plants and therefore, efforts should be made to avoid mycotoxin contamination in food and feed. Besides, up to 25% of all harvested fruits and vegetables are lost due to storage molds and/ or mycotoxin contamination and many methods have been applied to mitigate these issues, but most of them rely on the use of fungicides. Although chemicals are often the first defensive line against mycotoxigenic fungi, the indiscriminate use of fungicides are awakening the public perception due to their noxious effects on the environment and human/animal health. Thus, there is an... |
| Tipo: Separatas |
Palavras-chave: Biocontrol; Microbial antagonists; Postharvest decay; Agentes de biocontrole; Microrganismos antagonistas; Perda em pós-colheita; Micotoxina; Fungo; Controle biológico; Segurança alimentar; Mycotoxins; Biological control; Food safety. |
| Ano: 2012 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/942573 |
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| Medeiros,Flávio Henrique Vasconcelos de; Martins,Samuel Julio; Zucchi,Tiago Domingues; Melo,Itamar Soares de; Batista,Luis Roberto; Machado,José da Cruz. |
| Mycotoxins are produced by the secondary metabolism of many fungi and can be found in almost 25% of the world's agricultural commodities. These compounds are toxic to humans, animals, and plants and therefore, efforts should be made to avoid mycotoxin contamination in food and feed. Besides, up to 25% of all harvested fruits and vegetables are lost due to storage molds and/or mycotoxin contamination and many methods have been applied to mitigate these issues, but most of them rely on the use of fungicides. Although chemicals are often the first defensive line against mycotoxigenic fungi, the indiscriminate use of fungicides are awakening the public perception due to their noxious effects on the environment and human/animal health. Thus, there is an... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biocontrol; Microbial antagonists; Postharvest decay; Food safety. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000500001 |
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| BETTIOL, W.. |
| Biopesticide are living microorganisms (fungi, bacteria, microsporidia and viruses), microscopic animals (nematodes) and macroorganisms (predators and parasitoids, insects and mites) or natural products derived from these organisms that are used as plant protection products. The demand for biopesticides and biocompatible products to control pests, diseases and weeds has been increasing in Brazil in recent years, with increases in concern about the environment and contamination of food with synthetic chemical pesticides. It is also important to consider the expansion of the organic farming area and lhe move towards integrated pest management (IPM) in Brazil. This artide provide an analysis and summary of the use of biopestides in Brazil, including historic... |
| Tipo: Separatas |
Palavras-chave: Biocontrol; Brazilian market; Plant disease; Biopesticidas.; Biopesticides; Pests.. |
| Ano: 2011 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/917169 |
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| Shiomi,Humberto Franco; Silva,Harllen Sandro Alves; Melo,Itamar Soares de; Nunes,Flávia Vieira; Bettiol,Wagner. |
| Suppression of plant diseases due to the action of endophytic microorganisms has been demonstrated in several pathosystems. Experiments under controlled conditions involving endophytic bacteria isolated from leaves and branches of Coffea arabica L and Coffea robusta L were conducted with the objective of evaluating the inhibition of germination of Hemileia vastatrix Berk. & Br., race II, urediniospores and the control of coffee leaf rust development in tests with leaf discs, detached leaves, and on potted seedling of cv. Mundo Novo. The endophytic bacterial isolates tested proved to be effective in inhibiting urediniospore germination and/or rust development, with values above 50%, although the results obtained in urediniospore germination tests... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hemileia vastatrix; Coffea spp.; Bacillus; Biocontrol. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000100006 |
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| Serrano,Lizette; Moreno,Andrea Sosa; Castillo,Daynet Sosa Del; Bonilla,Julio; Romero,Christian A; Galarza,Luis Lenin; Coronel–León,Jonathan Ricardo. |
| ABSTRACT: Ecuador is responsible for up to 70 % of the world’s production of fine flavor cocoa. Although fungal diseases have reduced cocoa production, eco–friendly alternatives have been implemented to control the spread of phytopathogens. This study aimed to explore the potential of endophytic strains isolated from fine flavor Nacional cocoa trees to synthetize compounds with antimicrobial and surface active properties. It was determined that under in vitro conditions, seven strains (DS03, DS07, DS18, DS23, DS31, DS34 and DS50) exhibited antifungal activity that inhibited the mycelial growth of Moniliophthora roreri and Moniliophthora perniciosa. The strains were identified based on their morphological (pattern forming Bacilli) and genetic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antimicrobial biosurfactant; Biocontrol; Cocoa; Endophytes microorganisms. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000700201 |
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| Montalvão,Sandro Coelho Linhares; Castro,Marcelo Tavares de; Soares,Carlos Marcelo Silveira; Blum,Luiz Eduardo Bassay; Monnerat,Rose Gomes. |
| ABSTRACT: The cotton plant (Gossypium hirsutum) is affected by several diseases of economic importance, among them root-knot nematode (Meloidogyne incognita races 3 and 4). Methods to control this disease include the application of nematicides, solarization, deep plowing, crop rotation and use of antagonistic microorganisms. Among species of Bacillus, there are strains that act as bioregulators and antagonists of several pathogens. Tests to identify these strains are hampered by the difficulty of obtaining large populations of the pathogen and by the time of execution of the in vivo tests that should be conducted for about 90 days. The objective of this research was to compare the toxicity of B. thuringiensis strains to two nematodes, M. incognita and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biocontrol; Phytonematode; Root-knot nematode; Rhizobacteria. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000700151 |
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| LIMA,Amanda Beatriz Sales de; QUEIROGA,Inês Maria Barbosa Nunes; SILVA,Gabriela Muricy de Souza; COSTA,Jessyka Silva da; GUEDES,Jossana Pereira de Sousa; DANTAS,Cybelle de Oliveira; CAVALCANTI,Mônica Tejo. |
| Abstract Essential oils (EOs) are a promising alternative for food preservation and can be used instead of synthetic antimicrobial compounds such as sanitizers, as long as they are efficient and safe. In view of this possibility of use, Lippia alba (Mill) (LAEO) and Cymbopogon citratus D.C. Stapf. (CCEO) essential oils were evaluated as natural antimicrobials and applied into coriander for its biocontrol. The EOs were extracted and their physical properties, total phenolics, cytotoxicity to Artemia salina L. and antimicrobial potential in vitro and on natural coriander microbiota were determined. The EOs had a LD50 (median lethal dose - checked), are considered biologically active. MIC (Minimum Inhibitory Concentration) varied from 1.25 to 5.00 μL/ mL and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coriander; Antimicrobial activity; Cytotoxicity; Biocontrol. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000400993 |
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| Silva,Elaine Nóbrega Gibson; Figueiredo,Ana Cláudia Leite; Miranda,Fernanda Araújo; Almeida,Rogeria Comastri de Castro. |
| The purpose of this study was to determine the effect of bacteriophage P100 on strains of Listeria monocytogenes in artificially inoculated soft cheeses. A mix of L. monocytogenes 1/2a and Scott A was inoculated in Minas Frescal and Coalho cheeses (approximately 10(5) cfu/g) with the bacteriophage added thereafter (8.3 x 10(7) PFU/g). Samples were analyzed immediately, and then stored at 10 ºC for seven days. At time zero, 30 min post-infection, the bacteriophage P100 reduced L. monocytogenes counts by 2.3 log units in Minas Frescal cheese and by 2.1 log units in Coalho cheese, compared to controls without bacteriophage. However, in samples stored under refrigeration for seven days, the bacteriophage P100 was only weakly antilisterial, with the lowest... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Food safety; Listeria; Biocontrol; Bacteriophage; Cheese. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000100003 |
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| Registros recuperados: 97 | |
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