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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
20/01/2022 |
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Data da última atualização: |
14/07/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PORSANI, M. V.; POITEVIN, C. G.; TRALAMAZZA, S. M.; SOUZA, M. T. de; SOUZA, M. T. de; SILVA, E. D. B. da; ZAWADNEAK, M. A. C.; PIMENTEL, I. C.; MELO, I. S. de. |
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Afiliação: |
MARIANA VIEIRA PORSANI, UFPR; CAROLINA GRACIA POITEVIN, UFPR; SABINA MOSER TRALAMAZZA, ICB-USP; MIRELI TROMBIN DE SOUZA, UFPR; MICHELE TROMBIN DE SOUZA, UFPR; ÉDER DAVID BORGES DA SILVA, UFPR; MARIA APARECIDA CASSILHA ZAWADNEAK, UFPR; IDA CHAPAVAL PIMENTEL, UFPR; ITAMAR SOARES DE MELO, CNPMA. |
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Título: |
Streptomyces spp. isolated from marine and caatinga biomes in Brazil for the biological control of Duponchelia fovealis. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Neotropical Entomology, v. 51, n. 2, p. 299-310, 2022. |
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ISSN: |
1678-8052 |
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DOI: |
https://doi.org/10.1007/s13744-022-00942-1 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Actinobacteria have been drawing attention due to their potential for the development of new pest control products. We hereby assess the effects of Streptomyces isolated from marine and caatinga biomes against Duponchelia fovealis Zeller (Lepidoptera: Crambidae), a pest associated with the strawberry culture at a global scale. To this end, eggs deposited by adults were immersed for 5 s in a bacterial suspension, and the larvae were fed on leaflets placed in glass tubes containing bacterial suspensions. In both treatments, the control was a saline solution. The bioassays demonstrated that the Streptomyces strains were able to cause the death of D. fovealis eggs (â?? 40%) and larvae (â?? 65%) compared to untreated eggs (1.4%) and larvae (2.0%). The crude extract of strain T49 and the chitinase extract of strain T26 affected larval growth when applied directly to the thorax of first-instar larvae (larval-adult lifespan of 65.3â??±â??0.5 days and 67.5â??±â??0.7 days, respectively; survival of 61.2â??±â??1.2%) in relation to the control treatment (larval-adult lifespan of 41.75â??±â??0.2 days and survival of 83.7â??±â??2.6%). The Streptomyces spp. strains T41, T49, and T50 caused antifeeding activity. Apart from larval mortality, the adults that emerged from the larvae exposed to the extracts presented morphological abnormalities, and the mothsâ?? chitin spectra showed clear alterations to the pupa and wings. Our studies show, for the very first time, that Streptomyces isolated from the marine environment and the Caatinga biome are effective at provoking the mortality of D. fovealis and are promising agents for developing new products with biological control properties. MenosAbstract: Actinobacteria have been drawing attention due to their potential for the development of new pest control products. We hereby assess the effects of Streptomyces isolated from marine and caatinga biomes against Duponchelia fovealis Zeller (Lepidoptera: Crambidae), a pest associated with the strawberry culture at a global scale. To this end, eggs deposited by adults were immersed for 5 s in a bacterial suspension, and the larvae were fed on leaflets placed in glass tubes containing bacterial suspensions. In both treatments, the control was a saline solution. The bioassays demonstrated that the Streptomyces strains were able to cause the death of D. fovealis eggs (â?? 40%) and larvae (â?? 65%) compared to untreated eggs (1.4%) and larvae (2.0%). The crude extract of strain T49 and the chitinase extract of strain T26 affected larval growth when applied directly to the thorax of first-instar larvae (larval-adult lifespan of 65.3â??±â??0.5 days and 67.5â??±â??0.7 days, respectively; survival of 61.2â??±â??1.2%) in relation to the control treatment (larval-adult lifespan of 41.75â??±â??0.2 days and survival of 83.7â??±â??2.6%). The Streptomyces spp. strains T41, T49, and T50 caused antifeeding activity. Apart from larval mortality, the adults that emerged from the larvae exposed to the extracts presented morphological abnormalities, and the mothsâ?? chitin spectra showed clear alterations to the pupa and wings. Our studies show, for the very first time, that Stre... Mostrar Tudo |
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Thesagro: |
Actinomiceto; Bactéria não Patogênica; Caatinga; Controle Biológico; Praga de Planta. |
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Thesaurus Nal: |
Actinobacteria; Biological control; Chitinase; Marine ecosystems; Metabolites; Plant pests; Streptomyces. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02891naa a2200385 a 4500
001 2139198
005 2023-07-14
008 2022 bl uuuu u00u1 u #d
022 $a1678-8052
024 7 $ahttps://doi.org/10.1007/s13744-022-00942-1$2DOI
100 1 $aPORSANI, M. V.
245 $aStreptomyces spp. isolated from marine and caatinga biomes in Brazil for the biological control of Duponchelia fovealis.$h[electronic resource]
260 $c2022
520 $aAbstract: Actinobacteria have been drawing attention due to their potential for the development of new pest control products. We hereby assess the effects of Streptomyces isolated from marine and caatinga biomes against Duponchelia fovealis Zeller (Lepidoptera: Crambidae), a pest associated with the strawberry culture at a global scale. To this end, eggs deposited by adults were immersed for 5 s in a bacterial suspension, and the larvae were fed on leaflets placed in glass tubes containing bacterial suspensions. In both treatments, the control was a saline solution. The bioassays demonstrated that the Streptomyces strains were able to cause the death of D. fovealis eggs (â?? 40%) and larvae (â?? 65%) compared to untreated eggs (1.4%) and larvae (2.0%). The crude extract of strain T49 and the chitinase extract of strain T26 affected larval growth when applied directly to the thorax of first-instar larvae (larval-adult lifespan of 65.3â??±â??0.5 days and 67.5â??±â??0.7 days, respectively; survival of 61.2â??±â??1.2%) in relation to the control treatment (larval-adult lifespan of 41.75â??±â??0.2 days and survival of 83.7â??±â??2.6%). The Streptomyces spp. strains T41, T49, and T50 caused antifeeding activity. Apart from larval mortality, the adults that emerged from the larvae exposed to the extracts presented morphological abnormalities, and the mothsâ?? chitin spectra showed clear alterations to the pupa and wings. Our studies show, for the very first time, that Streptomyces isolated from the marine environment and the Caatinga biome are effective at provoking the mortality of D. fovealis and are promising agents for developing new products with biological control properties.
650 $aActinobacteria
650 $aBiological control
650 $aChitinase
650 $aMarine ecosystems
650 $aMetabolites
650 $aPlant pests
650 $aStreptomyces
650 $aActinomiceto
650 $aBactéria não Patogênica
650 $aCaatinga
650 $aControle Biológico
650 $aPraga de Planta
700 1 $aPOITEVIN, C. G.
700 1 $aTRALAMAZZA, S. M.
700 1 $aSOUZA, M. T. de
700 1 $aSOUZA, M. T. de
700 1 $aSILVA, E. D. B. da
700 1 $aZAWADNEAK, M. A. C.
700 1 $aPIMENTEL, I. C.
700 1 $aMELO, I. S. de
773 $tNeotropical Entomology$gv. 51, n. 2, p. 299-310, 2022.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
16/11/2010 |
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Data da última atualização: |
16/11/2010 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
GOMES, E. G.; SOUZA, G. da S. e; GAZZOLA, R.; AVILA, A. F. D. |
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Afiliação: |
ELIANE GONCALVES GOMES, SGE; GERALDO DA SILVA E SOUZA, SGE; ROSAURA GAZZOLA, SGE; ANTONIO FLAVIO DIAS AVILA, SGE. |
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Título: |
Effects of ecucation and investment in research in agricultural production in Brazil. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: EUROPEAN CONFERENCE ON OPERATIONAL RESEARCH, 24., 2010, Lisboa, Portugal. Proceedings. ... |
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Idioma: |
Português |
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Conteúdo: |
We use census data (1996 and 2006) to model the agricultural production at state level in Brazil. Cost efficiency measurements are computed using data envelopment analysis and the response is assessed via censored regressions. We study the effects of region, education and investment in agricultural research on the economic efficiency. Education has a strong significant effect, as well as investment in research. The intensity of the effects varies over regions for education, and is statistically the same for investment in research. |
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Palavras-Chave: |
Model the agricultural. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/23577/1/Effects-of-education.pdf
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Marc: |
LEADER 01079nam a2200157 a 4500
001 1867015
005 2010-11-16
008 2010 bl uuuu u00u1 u #d
100 1 $aGOMES, E. G.
245 $aEffects of ecucation and investment in research in agricultural production in Brazil.$h[electronic resource]
260 $aIn: EUROPEAN CONFERENCE ON OPERATIONAL RESEARCH, 24., 2010, Lisboa, Portugal. Proceedings. ...$c2010
520 $aWe use census data (1996 and 2006) to model the agricultural production at state level in Brazil. Cost efficiency measurements are computed using data envelopment analysis and the response is assessed via censored regressions. We study the effects of region, education and investment in agricultural research on the economic efficiency. Education has a strong significant effect, as well as investment in research. The intensity of the effects varies over regions for education, and is statistically the same for investment in research.
653 $aModel the agricultural
700 1 $aSOUZA, G. da S. e
700 1 $aGAZZOLA, R.
700 1 $aAVILA, A. F. D.
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Embrapa Unidades Centrais (AI-SEDE) |
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