| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Meio Ambiente. |
|
Data corrente: |
04/09/2023 |
|
Data da última atualização: |
04/09/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
PAIXÃO, F. R. S. da; MUNIZ, E. R.; CATÃO, A. M. L.; SANTOS, T. R.; LUZ, C.; MARRETO, R. N.; MASCARIN, G. M.; FERNANDES, É. K. K. |
|
Afiliação: |
FLÁVIA REGINA SANTOS DA PAIXÃO, UNIVERSIDADE FEDERAL DE GOIÁS; ELEN REGOZINO MUNIZ, UNIVERSIDADE FEDERAL DE GOIÁS; ALAINE MARIA LOPES CATÃO, UNIVERSIDADE FEDERAL DE GOIÁS; THAINÁ RODRIGUES SANTOS, UNIVERSIDADE FEDERAL DE GOIÁS; CHRISTIAN LUZ, UNIVERSIDADE FEDERAL DE GOIÁS; RICARDO NEVES MARRETO, UNIVERSIDADE FEDERAL DE GOIÁS; GABRIEL MOURA MASCARIN, CNPMA; ÉVERTON KORT KAMP FERNANDES, UNIVERSIDADE FEDERAL DE GOIÁS. |
|
Título: |
Microsclerotial pellets of Metarhizium spp.: thermotolerance and bioefficacy against the cattle tick. |
|
Ano de publicação: |
2023 |
|
Fonte/Imprenta: |
Applied Microbiology and Biotechnology, v. 107, n. 7-8, p. 2263-2275, 2023. |
|
ISSN: |
0175-7598 |
|
DOI: |
https://doi.org/10.1007/s00253-023-12467-7 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abstract: The cattle tick, Rhipicephalus microplus (Acari: Ixodidae), is a multi-billion dollar ectoparasite of global importance affecting beef and milk production. Submerged cultures of cosmopolitan entomopathogenic fungal species of the genus Metarhizium typically produce microsclerotia that provide both long-term survival and environmental resistance. Microsclerotia hold great potential as an unconventional active propagule to control this tick under laboratory and semi-field conditions. However, heat stress caused especially by elevated temperatures poses a critical environmental constraint for the successful development and efficacy of microsclerotia under tropical conditions. First, we screened six strains of Metarhizium anisopliae, Metarhizium robertsii and Metarhizium humberi for their ability to produce microsclerotia by submerged liquid cultivation. In addition, we assessed the biological fitness and bioefficacy of dried microsclerotial pellets under amenable (27 °C) and heat-stressed (32 °C) incubation against engorged adult females of R. microplus. Microsclerotia in pelletized formulation prepared with carriers based on diatomaceous earth and microcrystalline cellulose exhibited conidial production at different extents according to the fungal strain and the incubation temperature, but most strains displayed reduced sporogenesis when exposed to 32 °C. Engorged tick females exposed to sporulated microsclerotia from pelletized M. anisopliae CG47 or IP 119 had fewer number of hatching larvae in comparison to the control group, irrespective of the incubation temperature tested. The minimum dosage of microsclerotial pellets that effectively reduced hatchability of tick larvae was estimated to be 2 mg per plate (equivalent to 6.0 kg per hectare). Metarhizium microsclerotial pellets exhibited significant tolerance to 32 °C and pronounced acaricidal activity against this economically important ectoparasite of cattle, even under simulated environmental heat stress. MenosAbstract: The cattle tick, Rhipicephalus microplus (Acari: Ixodidae), is a multi-billion dollar ectoparasite of global importance affecting beef and milk production. Submerged cultures of cosmopolitan entomopathogenic fungal species of the genus Metarhizium typically produce microsclerotia that provide both long-term survival and environmental resistance. Microsclerotia hold great potential as an unconventional active propagule to control this tick under laboratory and semi-field conditions. However, heat stress caused especially by elevated temperatures poses a critical environmental constraint for the successful development and efficacy of microsclerotia under tropical conditions. First, we screened six strains of Metarhizium anisopliae, Metarhizium robertsii and Metarhizium humberi for their ability to produce microsclerotia by submerged liquid cultivation. In addition, we assessed the biological fitness and bioefficacy of dried microsclerotial pellets under amenable (27 °C) and heat-stressed (32 °C) incubation against engorged adult females of R. microplus. Microsclerotia in pelletized formulation prepared with carriers based on diatomaceous earth and microcrystalline cellulose exhibited conidial production at different extents according to the fungal strain and the incubation temperature, but most strains displayed reduced sporogenesis when exposed to 32 °C. Engorged tick females exposed to sporulated microsclerotia from pelletized M. anisopliae CG47 or IP 119 had fewer... Mostrar Tudo |
|
Palavras-Chave: |
Ectoparasite; Fungal entomopathogen; Fungal propagule. |
|
Thesagro: |
Calor; Carrapato; Fungo Para Controle Biológico. |
|
Thesaurus Nal: |
Biological control agents; Entomopathogenic fungi; Heat stress; Metarhizium. |
|
Categoria do assunto: |
S Ciências Biológicas |
|
Marc: |
LEADER 03074naa a2200349 a 4500
001 2156386
005 2023-09-04
008 2023 bl uuuu u00u1 u #d
022 $a0175-7598
024 7 $ahttps://doi.org/10.1007/s00253-023-12467-7$2DOI
100 1 $aPAIXÃO, F. R. S. da
245 $aMicrosclerotial pellets of Metarhizium spp.$bthermotolerance and bioefficacy against the cattle tick.$h[electronic resource]
260 $c2023
520 $aAbstract: The cattle tick, Rhipicephalus microplus (Acari: Ixodidae), is a multi-billion dollar ectoparasite of global importance affecting beef and milk production. Submerged cultures of cosmopolitan entomopathogenic fungal species of the genus Metarhizium typically produce microsclerotia that provide both long-term survival and environmental resistance. Microsclerotia hold great potential as an unconventional active propagule to control this tick under laboratory and semi-field conditions. However, heat stress caused especially by elevated temperatures poses a critical environmental constraint for the successful development and efficacy of microsclerotia under tropical conditions. First, we screened six strains of Metarhizium anisopliae, Metarhizium robertsii and Metarhizium humberi for their ability to produce microsclerotia by submerged liquid cultivation. In addition, we assessed the biological fitness and bioefficacy of dried microsclerotial pellets under amenable (27 °C) and heat-stressed (32 °C) incubation against engorged adult females of R. microplus. Microsclerotia in pelletized formulation prepared with carriers based on diatomaceous earth and microcrystalline cellulose exhibited conidial production at different extents according to the fungal strain and the incubation temperature, but most strains displayed reduced sporogenesis when exposed to 32 °C. Engorged tick females exposed to sporulated microsclerotia from pelletized M. anisopliae CG47 or IP 119 had fewer number of hatching larvae in comparison to the control group, irrespective of the incubation temperature tested. The minimum dosage of microsclerotial pellets that effectively reduced hatchability of tick larvae was estimated to be 2 mg per plate (equivalent to 6.0 kg per hectare). Metarhizium microsclerotial pellets exhibited significant tolerance to 32 °C and pronounced acaricidal activity against this economically important ectoparasite of cattle, even under simulated environmental heat stress.
650 $aBiological control agents
650 $aEntomopathogenic fungi
650 $aHeat stress
650 $aMetarhizium
650 $aCalor
650 $aCarrapato
650 $aFungo Para Controle Biológico
653 $aEctoparasite
653 $aFungal entomopathogen
653 $aFungal propagule
700 1 $aMUNIZ, E. R.
700 1 $aCATÃO, A. M. L.
700 1 $aSANTOS, T. R.
700 1 $aLUZ, C.
700 1 $aMARRETO, R. N.
700 1 $aMASCARIN, G. M.
700 1 $aFERNANDES, É. K. K.
773 $tApplied Microbiology and Biotechnology$gv. 107, n. 7-8, p. 2263-2275, 2023.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Meio Ambiente (CNPMA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Agrossilvipastoril. Para informações adicionais entre em contato com cpamt.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Agrossilvipastoril; Embrapa Solos. |
|
Data corrente: |
07/11/2018 |
|
Data da última atualização: |
11/11/2021 |
|
Tipo da produção científica: |
Artigo em Anais de Congresso |
|
Autoria: |
FEITOSA, A. A.; RITTER, E.; TEIXEIRA, W. G.; REZENDE, F. A. de; KERN, J. |
|
Afiliação: |
AMANDA ALVES FEITOSA, UERJ; ELISABETH RITTER, UERJ; WENCESLAU GERALDES TEIXEIRA, CNPS; FABIANA ABREU DE REZENDE, CPAMT; JÜRGEN KERN, Leibniz-Institut für Agrartechnik und Bioökonomie e.V. (ATB)Potsdam. |
|
Título: |
Sorption of ammonium in banana peel and orange bagasse biochars. |
|
Ano de publicação: |
2019 |
|
Fonte/Imprenta: |
In: INTERNATIONAL CONGRESS ON ENVIRONMENTAL GEOTECHNICS, 8., 2018, Hangzhou, China. Proceedings... Singapore: Springer, 2019. v. 1, p. 577-584. |
|
DOI: |
https://doi.org/10.1007/978-981-13-2221-1_63 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Biochar studies for environmental applications becoming more and more widespread. Biochar of banana peel (BPB) and orange bagasse (OBB) produced at 400 and 600 °C were characterized and studied the sorption of the ammonium from a landfill leachate and monosolution. The characterization show a alkaline pH for all biochars produced. The BPB shows high concentration of mineral elements, indicated by a high electrical conductivity and special the K. The total Carbon show values around 50% for BPB and 70% for OBB. For the monosolution, the BPB showed slightly higher sorption capacity than the OBB, with 1000 mg/L, about 12 mg/g, and the OBB about 6 mg/g. The same trend was observed for those produced at 600 °C, used in the leaching tests, with BPB 600 °C showing better sorption capacity. The isotherms were better adjusted by Freundlich for all samples. The sorption results shows the influence of feedstock and that the pyrolysis temperature with BPB carbonized at 600 °C showing the greatest sorption capacity. The research showed promising results for the use of these biochar as leaching treatment. |
|
Palavras-Chave: |
Ammonium; Bagaço de laranja; Biocarvão; Casca de banana; Monosolution. |
|
Thesaurus NAL: |
Biochar; Leachates. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra
X Pesquisa, Tecnologia e Engenharia |
|
Marc: |
LEADER 01933nam a2200253 a 4500
001 2099809
005 2021-11-11
008 2019 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/978-981-13-2221-1_63$2DOI
100 1 $aFEITOSA, A. A.
245 $aSorption of ammonium in banana peel and orange bagasse biochars.$h[electronic resource]
260 $aIn: INTERNATIONAL CONGRESS ON ENVIRONMENTAL GEOTECHNICS, 8., 2018, Hangzhou, China. Proceedings... Singapore: Springer, 2019. v. 1, p. 577-584.$c2019
520 $aBiochar studies for environmental applications becoming more and more widespread. Biochar of banana peel (BPB) and orange bagasse (OBB) produced at 400 and 600 °C were characterized and studied the sorption of the ammonium from a landfill leachate and monosolution. The characterization show a alkaline pH for all biochars produced. The BPB shows high concentration of mineral elements, indicated by a high electrical conductivity and special the K. The total Carbon show values around 50% for BPB and 70% for OBB. For the monosolution, the BPB showed slightly higher sorption capacity than the OBB, with 1000 mg/L, about 12 mg/g, and the OBB about 6 mg/g. The same trend was observed for those produced at 600 °C, used in the leaching tests, with BPB 600 °C showing better sorption capacity. The isotherms were better adjusted by Freundlich for all samples. The sorption results shows the influence of feedstock and that the pyrolysis temperature with BPB carbonized at 600 °C showing the greatest sorption capacity. The research showed promising results for the use of these biochar as leaching treatment.
650 $aBiochar
650 $aLeachates
653 $aAmmonium
653 $aBagaço de laranja
653 $aBiocarvão
653 $aCasca de banana
653 $aMonosolution
700 1 $aRITTER, E.
700 1 $aTEIXEIRA, W. G.
700 1 $aREZENDE, F. A. de
700 1 $aKERN, J.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Solos (CNPS) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
