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Registros recuperados: 21
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Annona crassiflora Mart. (Annonaceae): effect of crude extract of seeds on larvae of soybean looper Chrysodeixis includens (Lepidoptera: Noctuidae) Bragantia
Massarolli,Angélica; Pereira,Mônica Josene Barbosa; Foerster,Luis Amilton.
ABSTRACT The effect of a crude extract of Annona crassiflora was evaluated on larvae of the soybean looper, Chrysodeixis includens (Lepidoptera: Noctuidae) in different stages of larval development. The extract was prepared with seeds of A. crassiflora fruits collected in the state of Mato Grosso, Brazil. The extract was diluted in water and solubilizer agent at the concentrations of 0.5, 1.0, 2.0, 4.0, and 8.0%; it was tested by ingestion of treated leaves and contact. The mortality rate of topically treated caterpillars of first, third, and fifth instars was significantly higher than that of the control group. For first instar caterpillars, mortality was observed within the first 24 h after application, while, for the remaining instars, it was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Araticum; Bioinsecticide; Marôlo; Phytoinsecticide.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000300398
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Bacillus thuringiensis development from 1971 to 1996: cases of a research group in Brazil. Repositório Alice
MORAES, I.O.; CAPALBO, D. M. F.; ARRUDA, R.O.M.; BIANCHI, V.L..
1996
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Biocontrol agent; Fermentation process; Bioinsecticide; Mass production; By-products; Culture media.
Ano: 1996 URL: http://www.alice.cnptia.embrapa.br/handle/doc/12562
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Bacillus thuringiensis production and application studies in Brazil. Repositório Alice
MORAES, I.O.; CAPALBO, D. M. F.; ARRUDA, R.O.M..
1996
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Biological control; Bioinsecticide; Soybean; Raw material; Agroindustrial residues; Wastewater; Solid state fermentation; Fermentative process; Soybean pests; Anticarsia gemmatalis; Musca domestica; Plodia interpuctela; Ceratitis captata.
Ano: 1996 URL: http://www.alice.cnptia.embrapa.br/handle/doc/12554
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Bacterial insecticide production by Bacillus thuringiensis. Repositório Alice
MORAES, I.O.; CAPALBO, D. M. F.; MORAES, R.O..
1989
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Bacterial insecticide; Bacillus thuringiensis; Biological insecticide; Bioinsecticide; Production; Insect; Pest; Biological control.
Ano: 1989 URL: http://www.alice.cnptia.embrapa.br/handle/doc/10693
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Bacterial insecticide production: potencial use of waste sludges from pulp and paper industries. Repositório Alice
MORAES, I.O.; CAPALBO, D. M. F.; MORAES, R.O..
1989
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Bacillus thuringiensis; Bacteria; Biological insecticide; Bioinsecticide; Production; Residues; Agriculture; Sugarcane; Molasse; Corn; Insects; Pests; Biological control; Inseticida bacteriano; Inseticida biologico; Bioinseticida; Producao; Residuos; Agricultura; Cana-de-acucar; Melaco; Milho; Inseto; Praga; Controle biologico.
Ano: 1989 URL: http://www.alice.cnptia.embrapa.br/handle/doc/10713
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Effect of Bacillus thuringiensis on microbial functional groups in sorghum rhizosphere. Repositório Alice
BRASIL, C.; MATSUMOTO, L.S.; NOGUEIRA, M.A.; SPAGO, F.R.; RAMPAZO, L.G.; CRUZ, M.F.; ANDRADE, G..
The objective of this work was to assess the effect of two strains of Bacillus thuringiensis var. kurstaki on sorghum rhizosphere microorganisms. The strains were HD1, that produces the bioinsecticidal protein, and 407, that is a mutant non-producer. The strains do not influence microbial population, but reduce plant growth and improve mycorrhizal colonization and free living fixing N2 community.
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Bioinsecticide; Sorgum; Rhizosphere; Biocontrol; Bioinseticida; Sorgo; Rizosfera; Controle biológico.
Ano: 2006 URL: http://www.alice.cnptia.embrapa.br/handle/doc/108373
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Effect of Bacillus thuringiensis on microbial functional groups in sorghum rhizosphere PAB
Brasil,Carlos; Matsumoto,Leopoldo Sussumu; Nogueira,Marco Antonio; Spago,Flavia Regina; Rampazo,Luís Gustavo; Cruz,Marcio Ferreira; Andrade,Galdino.
The objective of this work was to assess the effect of two strains of Bacillus thuringiensis var. kurstaki on sorghum rhizosphere microorganisms. The strains were HD1, that produces the bioinsecticidal protein, and 407, that is a mutant non-producer. The strains do not influence microbial population, but reduce plant growth and improve mycorrhizal colonization and free living fixing N2 community.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Bioinsecticide; Sorgum; Rhizosphere; Biocontrol.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2006000500022
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Heterologous expression of an insecticidal gene from the armed spider (Phoneutria nigriventer) J. Venom. Anim. Toxins incl. Trop. Dis.
Figueiredo,J. E. F.; Kalapothakis,E.; Gomez,M. V.; Bressan,W..
Insect-pests are global problems that cause severe damage to crop plants, and their control is commonly based on chemical insecticides. However, negative effects of pesticides on the environment and human health emphasize the necessity to develop alternative methods for insect-pest control. In the present study, a gene coding for the insecticidal peptide TX4(6-1) of the Brazilian armed spider (Phoneutria nigriventer) was cloned in fusion with maltose binding protein (MBP) and expressed in Escherichia coli. The affinity purified protein MBP-GlyTX4 was cleaved with the Xa factor and used for a bioassay against Spodoptera frugiperda and rabbit immunization. Five micrograms GlyTX4 protein injected into the hemocoel of larvae and abdominal cavity of adults...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioinsecticide; Molecular cloning; Heterologous expression; Escherichia coli; Spodoptera frugiperda.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000200006
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Insecticide effects of Ruta graveolens, Copaifera langsdorffii and Chenopodium ambrosioides against pests and natural enemies in commercial tomato plantation - doi: 10.4025/actasciagron.v33i1.5900 Agronomy
Barbosa, Flávia Silva; Universidade Federal de Minas Gerais; Leite, Germano Leão Demolin; Universidade Federal de Minas Gerais; Alves, Sérgio Monteze; Universidade Federal de Minas Gerais; Nascimento, Aline Fonseca; Universidade Federal de Minas Gerais; D'Ávila, Vinícius de Abreu; Universidade Federal de Minas Gerais; Costa, Cândido Alves da; Universidade Federal de Minas Gerais.
The aim of this study was to evaluate the insecticide effect of watery leaf extracts of Ruta graveolens (Rutaceae), alcoholic leaf extracts of Copaifera langsdorffii (Caesalpinaceae) and Chenopodium ambrosioides (Chenopodiaceae) in the concentration of 5% under field conditions. The experiment design was randomized blocks with six replications. The parcels treated with plant extracts showed reduction in the population of pests when compared with the control parcels. The extract elaborated with C. langsdorffii presented greater insecticidal effect under Bemisia tabaci (Hemiptera: Aleyrodidae) and sum of pests. It was verified that after 24 hours of spraying, the parcels treated with the extract of C. ambrosioides presented minor numbers of adults of Tuta...
Tipo: Pesquisa científica em condições de campo Palavras-chave: 5.01.02.00-1 Lycopersicon esculentum; Bioinsecticide; Alternative control 5.01.02.02-8 Lycopersicon esculentum; Bioinsecticide; Alternative control.
Ano: 2011 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5900
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Isolation of Bacillus thuringiensis from the state of Amazonas, in Brazil, and screening against Aedes aegypti (Diptera, Culicidae) Rev. Bras. entomol.
Soares-da-Silva,Joelma; Pinheiro,Valéria Cristina Soares; Litaiff-Abreu,Eleilza; Polanczyk,Ricardo Antonio; Tadei,Wanderli Pedro.
We investigated the use of Bacillus thuringiensis isolated in the state of Amazonas, in Brazil, for the biological control of the dengue vector Aedes aegypti. From 25 soil samples collected in nine municipalities, 484 bacterial colonies were obtained, 57 (11.78%) of which were identified as B. thuringiensis. Six isolates, IBt-03, IBt-06, IBt-07, IBt-28, IBt-30, and BtAM-27 showed insecticidal activity, and only BtAM-27 presents the five genes investigated cry4Aa, cry4Ba, cry10Aa, cry11Aa, and cry11Ba. The IBt-07 and IBt- 28, with lower LC50 values, showed equal toxicity compared to the standards. The isolates of B. thuringiensisfrom Amazonas constitute potential new means of biological control for A. aegypti, because of their larvicidal activity and the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazonian; Bioinsecticide; Dengue; Vector.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262015000100001
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Outlook on the use of semi-solid culture media for the production of Bacillus thuringiensis. Repositório Alice
CAPALBO, D.M.F.; MORAES, I.O..
Based on the fact that wider use of Bacillus thuringiensis for the biological control of insect pests has been restricted by economic reasons, studies were initiated to explore the feasibility of producing Bt. endotoxin preparations using semi-solid fermentation with cheap components as substracts. Some agroindustrial by-products including solid residue from paper industry, residual fermented malt from beer industry, and a special kind of meal obtained from residual cookies and biscuits of bakery industry, were investigated for their abilities to support Bt. growth and spore production. The technique was based upon the employment of semi-solid type of fermentation in erlenmeyers whose culture medium was composed by each residue separated, or by the...
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Bacillus thuringiensis; Bacteria; Production; Semi solid fermentation; Bioinsecticide; Bacterial insecticide; Insect; Pest; Biological control.
Ano: 1988 URL: http://www.alice.cnptia.embrapa.br/handle/doc/10688
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Production of Bacillus thuringiensis Berliner var. kurstaki grown in alternative media. Repositório Alice
ALVES, L. F. A.; ALVES, S.B.; PEREIRA, R.M.; CAPALBO, D. M. F..
Agro-industrial residues and by-products available in southeastern Brazil were used as ingridients for low-cost culture media for liquid fermentation of Bacillus thuringiensis var. kurstaki. Highest spore yield was obtained with a medium containing cheese whey, soya bean milk and molasses (WSM). Crystals and spores were produced in all media and potency of the final product was highest for nutrient broth + yeast extract medium (NBY). There was no correlation between the number of spores in the fermented media and the potency of the preparations. Considering all three factors, the potencies, costs and yields of the final products, lowest relative cost was obtained with BMM medium (Bombyx mori pupae + molasses). NBY and WSM had intermediate relative cost...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Bioinsecticide; Biological control; Biocontrol; Liquid fermentation; Entomopathogenic bacteria; Microbial control; Vectors; Pests; Diseases; Agro-industrial residues.
Ano: 1997 URL: http://www.alice.cnptia.embrapa.br/handle/doc/12781
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Production of bio-inseticide Bacillus thuringiensis var. israelensis in semicontinuous processes combined with batch processes for sporulation BABT
Silva,Millena da; Furigo Junior,Agenor; Furlan,Sandra Aparecida; Souza,Ozair.
The aim of this work was to study the production of the bioinsecticide using the aerobic cultivation. Two-stage cultivation process was used: aerobic vegetative growth and end-phase of sporulation (with aeration and without aeration). The cuts of working volume evaluated were 20, 40, 60 and 80 %. The highest value of spore concentration (2.17x10(9) CFU/mL) and spore productivity (7.2x10(7) CFU/mL.h) were observed using SP60. The lethal concentration (CL50) obtained through the aeration process and non-aeration process were 0.21 and 0.05 mg/L, respectively. The specific potential of the bioinsecticide produced without aeration (0.025 mg/10-12 CFU) was two times higher than that obtained with aeration (0.05 mg/10-12 CFU).
Tipo: Info:eu-repo/semantics/article Palavras-chave: Semicontinuous fermentation; Combined process; Bti; Bioinsecticide.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000100006
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Production of proteic protoxin by Bacillus thuringiensis by semi-solid fermentation. Repositório Alice
CAPALBO, D. M. F.; MORAES, I.O..
1988
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Bacillus thuringiensis; Bacteria; Semi solid fermentation; Spores; Production; Bacterial insecticide; Bioinsecticide; Biological insecticide; Biological control; Proteic toxin.
Ano: 1988 URL: http://www.alice.cnptia.embrapa.br/handle/doc/10689
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Recent observations on bacterial insecticide production by semi-solid fermentation technique. Repositório Alice
CAPALBO, D. M. F.; MORAES, I.O.; MORAES, R.O..
The practical use of entomopathogenic microorganism, to crop protection is possible when an industrial scale production of the organism is developed. That is the case of Bacillus thuringiensis (Bt), one of the most studied and commercially important entomopathogenic bacterium. In Brazil the feasibility of Bt production depends, to a large degree, on the cost at which this product can be obtained. So, the fermentation technology has to aim the production of new fermentation media and new fermentation processes to get such economical level. In search of new fermentation processes it was studied the production of Bt spores and gama-endotoxin in a low cost medium (using agroindustrial by-products) by the semi-solid fermentation in flasks. The fermented malt...
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Bacillus thuringiensis; Bactéria; Bioinsecticide; Biological insecticide; Bacterial insecticide; Production; Semi solid fermentation; Techniques; Insect; Pest; Biological control.
Ano: 1992 URL: http://www.alice.cnptia.embrapa.br/handle/doc/10711
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Screening of Bacillus thuringiensis strains effective against mosquitoes. Repositório Alice
MONNERAT, R.G.; DIAS, D.G.S.; SILVA, S.F. da; MARTINS, E.S.; BERRY, C.; FALCÃO, R.; GOMES, A.C.M.M.; PRAÇA, L.B.; SOARES, C.M.S..
The objective of this work was to evaluate 210 Bacillus thuringiensis strains against Aedes aegypti and Culex quinquefasciatus larvae to select the most effective. These strains were isolated from different regions of Brazil and are stored in a Bacillus spp. collection at Embrapa Recursos Genéticos e Biotecnologia, Brasília, Brazil. The selected strains were characterized by morphological (microscopy), biochemical (SDS-PAGE 10%) and molecular (PCR) methods. Six B. thuringiensis strains were identified as mosquito-toxic after the selective bioassays. None of the strains produced the expected PCR products for detection of cry4, cry11 and cyt1A genes. These results indicate that the activity of mosquitocidal Brazilian strains are not related with Cry4, Cry11...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Culex quinquefasciatus; Aedes aegypti; Bioinsecticide; Bioinseticida.
Ano: 2005 URL: http://www.alice.cnptia.embrapa.br/handle/doc/113847
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Screening of Bacillus thuringiensis strains effective against mosquitoes PAB
Monnerat,Rose Gomes; Dias,Daniel Gerhein Souza; Silva,Silvania Ferreira da; Martins,Erica Soares; Berry,Colin; Falcão,Rosana; Gomes,Ana Cristina Menezes Mendes; Praça,Lilian Botelho; Soares,Carlos Marcelo Silveira.
The objective of this work was to evaluate 210 Bacillus thuringiensis strains against Aedes aegypti and Culex quinquefasciatus larvae to select the most effective. These strains were isolated from different regions of Brazil and are stored in a Bacillus spp. collection at Embrapa Recursos Genéticos e Biotecnologia, Brasília, Brazil. The selected strains were characterized by morphological (microscopy), biochemical (SDS-PAGE 10%) and molecular (PCR) methods. Six B. thuringiensis strains were identified as mosquito-toxic after the selective bioassays. None of the strains produced the expected PCR products for detection of cry4, cry11 and cyt1A genes. These results indicate that the activity of mosquitocidal Brazilian strains are not related with Cry4, Cry11...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Culex quinquefasciatus; Aedes aegypti; Bioinsecticide.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2005000200001
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Solid and liquid waste utilization in fermentation process to get bacterial insecticide. Repositório Alice
MORAES, I.O.; CAPALBO, D. M. F.; MORAES, R.O..
1990
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Bacillus thuringiensis; Bacterial insecticide; Biological control; Fermentation; Residue; Utilization; Insect; Pest; Bioinsecticide; Biological insecticide; Inseticida bacteriano; Controle biológico; Fermentação; Resíduo; Utilização; Inseto; Praga; Bioinseticida; Inseticida biológico.
Ano: 1990 URL: http://www.alice.cnptia.embrapa.br/handle/doc/10725
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Solid state fermentation of Bacillus thuringiensis tolworth as a toll for Spodoptera frugiperda control in maize. Repositório Alice
CAPALBO, D. M. F.; VALICENTI, F.; MORAES, I.O.; SOARES, C.M..
1996
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Entomopathogenic bacterium; Bioinsecticide; Fermentation process; Solid-state fermentation; Production; Biocontrol agent.
Ano: 1996 URL: http://www.alice.cnptia.embrapa.br/handle/doc/12564
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Technical aspects of the use of wastewaters, to get useful products though fermentative process. Repositório Alice
MORAES, I.O.; CAPALBO, D. M. F.; DEL BIANCHI, V.L.; SIFUENTES, L.E..
The use of wastewaters, or by-products from agro, food and beverage industry, presents a great deal of interest, because their chemical composition, rich in carbohydrates, nitrogen, vitamins, aminoacids is useful to promote growth and production of a lot of products using fermentation techniques. In Brazil, our researcher group is studying different wastewaters, to get some products, using different types of fermenters and different processes, though projects that are sponsored by FAPESP (FUNDACAO DE AMPARO A PESQUISA NO ESTADO DE SAO PAULO) and OEA (ORGANIZATION OF AMERICAN STATES).
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Bacillus thuringiensis; Bacteria; Bioinsecticide; Biological insecticide; Bacterial insecticide; Residue; Agroindustry; Product; Fermentation; Biological control; Insect; Pest.
Ano: 1991 URL: http://www.alice.cnptia.embrapa.br/handle/doc/10710
Registros recuperados: 21
Primeira ... 12 ... Última
 

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