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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
30/06/2020 |
Data da última atualização: |
30/06/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ROBERTS, A.; BOECKMAN, C. J.; MÜHL, M.; ROMEIS, J.; TEEM, J. L.; VALICENTE, F. H.; BROWN, J. K.; EDWARDS, M. G.; LEVINE, S. L.; MELNICK, R. L.; ROFRIGUES, T. B.; VÉLEZ, A. M.; ZHOU, X.; HELLMICH, R. L. |
Afiliação: |
Andrew Roberts, Agriculture and Food Systems Institute, Washington, DC; Chad J. Boeckman, Corteva Agriscience; Marina Mühl, Ministerio de Agricultura, Ganadería y Pesca, Dirección de Biotecnología, Buenos Aires; Jörg Romeis, Research Division Agroecology and Environment, Agroscope, Zurich; John L. Teem, Agriculture and Food Systems Institute, Washington, DC; FERNANDO HERCOS VALICENTE, CNPMS; Judith K. Brown, School of Plant Sciences, The University of Arizona, Tucson; Martin G. Edwards, School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne; Steven L. Levine, Bayer Crop Science, Chesterfield, MO; Rachel L. Melnick, Agriculture and Food Systems Institute, Washington, DC; Thais B. Rodrigues, Greenlight Biosciences, Inc., Medford, MA; Ana M. Vélez, Department of Entomology, University of Nebraska-Lincoln; Xuguo Zhou, Department of Entomology, University of Kentucky, Lexington, KY; Richard L. Hellmich, USDA, Corn Insects and Crop Genetics Research Unit, Ames. |
Título: |
Sublethal endpoints in non-target organism testing for insect-active GE crops. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Frontiers in Bioengineering and Biotechnology, v. 8, article 556, 2020. |
DOI: |
https://doi.org/10.3389/fbioe.2020.00556 |
Idioma: |
Inglês |
Conteúdo: |
Historically, genetically engineered (GE) plants that have incorporated genes conferring insect protection have primarily used Cry proteins derived from Bacillus thuringiensis (Bt) to achieve their insecticidal phenotype. As a result, regulators have developed a level of familiarity and confidence in reviewing plants incorporating these insecticidal proteins. However, new technologies have been developed that produce GE plants that incorporate pest protection by triggering an RNA interference (RNAi) response or proteins other than Bt Cry proteins. These technologies have new modes of action. Although the overall assessment paradigm for GE plants is robust, there are ongoing discussions about the appropriate tests and measurement endpoints needed to inform non-target arthropod assessment for technologies that have a different mode of action than the Bt Cry proteins. As a result, increasing attention is being paid to the use of sublethal endpoints and their value for environmental risk assessment (ERA). This review focuses on the current status and history of sublethal endpoint use in insect-active GE crops, and evaluates the future use of sublethal endpoints for new and emerging technologies. It builds upon presentations made at the Workshop on Sublethal Endpoints for Non-target Organism Testing for Non-Bt GE Crops (Washington DC, USA, 4â??5 March 2019), and the discussions of government, academic and industry scientists convened for the purpose of reviewing the progress and status of sublethal endpoint testing in non-target organisms. MenosHistorically, genetically engineered (GE) plants that have incorporated genes conferring insect protection have primarily used Cry proteins derived from Bacillus thuringiensis (Bt) to achieve their insecticidal phenotype. As a result, regulators have developed a level of familiarity and confidence in reviewing plants incorporating these insecticidal proteins. However, new technologies have been developed that produce GE plants that incorporate pest protection by triggering an RNA interference (RNAi) response or proteins other than Bt Cry proteins. These technologies have new modes of action. Although the overall assessment paradigm for GE plants is robust, there are ongoing discussions about the appropriate tests and measurement endpoints needed to inform non-target arthropod assessment for technologies that have a different mode of action than the Bt Cry proteins. As a result, increasing attention is being paid to the use of sublethal endpoints and their value for environmental risk assessment (ERA). This review focuses on the current status and history of sublethal endpoint use in insect-active GE crops, and evaluates the future use of sublethal endpoints for new and emerging technologies. It builds upon presentations made at the Workshop on Sublethal Endpoints for Non-target Organism Testing for Non-Bt GE Crops (Washington DC, USA, 4â??5 March 2019), and the discussions of government, academic and industry scientists convened for the purpose of reviewing the progress and ... Mostrar Tudo |
Palavras-Chave: |
Organismos não-alvo; Parâmetros subletais; Planta geneticamente modificada. |
Thesagro: |
Controle Biológico; Inseto; Melhoramento Genético Vegetal; Planta Transgênica. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/214276/1/Sublethal-endpoints.pdf
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Marc: |
LEADER 02669naa a2200373 a 4500 001 2123519 005 2020-06-30 008 2020 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.3389/fbioe.2020.00556$2DOI 100 1 $aROBERTS, A. 245 $aSublethal endpoints in non-target organism testing for insect-active GE crops.$h[electronic resource] 260 $c2020 520 $aHistorically, genetically engineered (GE) plants that have incorporated genes conferring insect protection have primarily used Cry proteins derived from Bacillus thuringiensis (Bt) to achieve their insecticidal phenotype. As a result, regulators have developed a level of familiarity and confidence in reviewing plants incorporating these insecticidal proteins. However, new technologies have been developed that produce GE plants that incorporate pest protection by triggering an RNA interference (RNAi) response or proteins other than Bt Cry proteins. These technologies have new modes of action. Although the overall assessment paradigm for GE plants is robust, there are ongoing discussions about the appropriate tests and measurement endpoints needed to inform non-target arthropod assessment for technologies that have a different mode of action than the Bt Cry proteins. As a result, increasing attention is being paid to the use of sublethal endpoints and their value for environmental risk assessment (ERA). This review focuses on the current status and history of sublethal endpoint use in insect-active GE crops, and evaluates the future use of sublethal endpoints for new and emerging technologies. It builds upon presentations made at the Workshop on Sublethal Endpoints for Non-target Organism Testing for Non-Bt GE Crops (Washington DC, USA, 4â??5 March 2019), and the discussions of government, academic and industry scientists convened for the purpose of reviewing the progress and status of sublethal endpoint testing in non-target organisms. 650 $aControle Biológico 650 $aInseto 650 $aMelhoramento Genético Vegetal 650 $aPlanta Transgênica 653 $aOrganismos não-alvo 653 $aParâmetros subletais 653 $aPlanta geneticamente modificada 700 1 $aBOECKMAN, C. J. 700 1 $aMÜHL, M. 700 1 $aROMEIS, J. 700 1 $aTEEM, J. L. 700 1 $aVALICENTE, F. H. 700 1 $aBROWN, J. K. 700 1 $aEDWARDS, M. G. 700 1 $aLEVINE, S. L. 700 1 $aMELNICK, R. L. 700 1 $aROFRIGUES, T. B. 700 1 $aVÉLEZ, A. M. 700 1 $aZHOU, X. 700 1 $aHELLMICH, R. L. 773 $tFrontiers in Bioengineering and Biotechnology$gv. 8, article 556, 2020.
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Embrapa Milho e Sorgo (CNPMS) |
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Registro Completo
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
05/03/2024 |
Data da última atualização: |
05/03/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 4 |
Autoria: |
ASSALIN, M. R.; SOUZA, D. R. C. de; ROSA, M. A.; MOLTOCARO, R. C. R.; CASTANHA, R. F.; VILELA, E. S. D.; TASIC, L.; DURÁN, N. |
Afiliação: |
MARCIA REGINA ASSALIN, CNPMA; DEBORA RENATA CASSOLI DE S DUTRA, CNPMA; MARIA APARECIDA ROSA, CNPMA; RAFAELA C RANGNI MOLTOCARO DUARTE, CNPMA; RODRIGO FERNANDES CASTANHA, CNPMA; ELKE SIMONI DIAS VILELA, CNPMA; LJUBICA TASIC, UNIVERSIDADE ESTADUAL DE CAMPINAS; NELSON DURÁN, UNIVERSIDADE ESTADUAL DE CAMPINAS. |
Título: |
Thiamethoxam used as nanopesticide for the effective management of Diaphorina citri psyllid: an environmental-friendly formulation. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
International Journal of Pest Management, p.1-9, 2022. |
ISSN: |
0967-0874 |
DOI: |
http://dx.doi.org/10.1080/09670874.2022.2042425 |
Idioma: |
Inglês |
Notas: |
Online first. |
Conteúdo: |
Abstract: Although insecticides are essential for the effective pest management, the development of sustainable formulations remains a challenge in modern agriculture. This work focuses on the encapsulation of thiamethoxam in polymeric micelles, a nanodelivery system. The nanomicelles, prepared by thin-film hydration method, presented 94.5 ± 10.26% of encapsulation efficiency, average size of 85.14 ± 2.23 nm, zeta potential of −5.3 mV, and acceptable homogenous distribution. Water solubility of thiamethoxam nanomicelles showed an increase by 41.7% in relation of thiamethoxam compound. Toxicity assessment was applied to Raphidocelis subcapitata Korshikov and Artemia salina Linnaeus organisms. The EC50 values obtained for microalgae of polymeric nanomicelles > polymeric nanomicelles loaded thiamethoxam > commercial pesticide. EC50 values obtained for Artemia salina in all treatments could not be compared due to lack of sensitivity shown by this organism to the adopted treatments. Nanoformulation effectiveness was evaluated against D. citri caged in citrus plants grown under greenhouse conditions, in comparison to that of standard formulations. Results have suggested that thiamethoxam nanomicelles might be effective in controlling D. citri around dose 2-fold lower than commercial formulations. |
Palavras-Chave: |
Nano pesticide; Nanodelivery; Polymeric nanoparticles. |
Thesagro: |
Greening; Impacto Ambiental; Inseticida; Toxidez. |
Thesaurus NAL: |
Greening disease; Microencapsulation; Nanoparticles; Neonicotinoid insecticides; Thiamethoxam. |
Categoria do assunto: |
H Saúde e Patologia |
Marc: |
LEADER 02494naa a2200385 a 4500 001 2162580 005 2024-03-05 008 2022 bl uuuu u00u1 u #d 022 $a0967-0874 024 7 $ahttp://dx.doi.org/10.1080/09670874.2022.2042425$2DOI 100 1 $aASSALIN, M. R. 245 $aThiamethoxam used as nanopesticide for the effective management of Diaphorina citri psyllid$ban environmental-friendly formulation.$h[electronic resource] 260 $c2022 500 $aOnline first. 520 $aAbstract: Although insecticides are essential for the effective pest management, the development of sustainable formulations remains a challenge in modern agriculture. This work focuses on the encapsulation of thiamethoxam in polymeric micelles, a nanodelivery system. The nanomicelles, prepared by thin-film hydration method, presented 94.5 ± 10.26% of encapsulation efficiency, average size of 85.14 ± 2.23 nm, zeta potential of −5.3 mV, and acceptable homogenous distribution. Water solubility of thiamethoxam nanomicelles showed an increase by 41.7% in relation of thiamethoxam compound. Toxicity assessment was applied to Raphidocelis subcapitata Korshikov and Artemia salina Linnaeus organisms. The EC50 values obtained for microalgae of polymeric nanomicelles > polymeric nanomicelles loaded thiamethoxam > commercial pesticide. EC50 values obtained for Artemia salina in all treatments could not be compared due to lack of sensitivity shown by this organism to the adopted treatments. Nanoformulation effectiveness was evaluated against D. citri caged in citrus plants grown under greenhouse conditions, in comparison to that of standard formulations. Results have suggested that thiamethoxam nanomicelles might be effective in controlling D. citri around dose 2-fold lower than commercial formulations. 650 $aGreening disease 650 $aMicroencapsulation 650 $aNanoparticles 650 $aNeonicotinoid insecticides 650 $aThiamethoxam 650 $aGreening 650 $aImpacto Ambiental 650 $aInseticida 650 $aToxidez 653 $aNano pesticide 653 $aNanodelivery 653 $aPolymeric nanoparticles 700 1 $aSOUZA, D. R. C. de 700 1 $aROSA, M. A. 700 1 $aMOLTOCARO, R. C. R. 700 1 $aCASTANHA, R. F. 700 1 $aVILELA, E. S. D. 700 1 $aTASIC, L. 700 1 $aDURÁN, N. 773 $tInternational Journal of Pest Management, p.1-9, 2022.
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