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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
02/03/2021 |
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Data da última atualização: |
06/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GUIMARÃES-CESTARO, L.; MARTINS, M. F.; LUÍS CARLOS MARTÍNEZ; MARIA LUISA TELES MARQUES FLORÊNCIO ALVES; KARINA ROSA GUIDUGLI-LAZZARINI; ROBERTA CORNÉLIO FERREIRA NOCELLI; MALASPINA, O.; SERRÃO, J. E.; TEIXEIRA, É. W. |
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Afiliação: |
Lubiane Guimarães-Cestaro, UFV; MARTA FONSECA MARTINS, CNPGL; Luís Carlos Martínez, UFV; Maria Luisa Teles Marques Florêncio Alves, APTA - SP; Karina Rosa Guidugli-Lazzarini, USP; Roberta Cornélio Ferreira Nocelli, UFSCAR; Osmar Malaspina, UNESP; José Eduardo Serrão, UFV; Érica Weinstein Teixeira. |
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Título: |
Occurrence of virus, microsporidia, and pesticide residues in three species of stingless bees (Apidae: Meliponini) in the field. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
NATURWISSENSCHAFTEN - The Science of Nature, v. 107, n. 16, 2020. |
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Páginas: |
14 p. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract Bees are important pollinators whose population has declined due to several factors, including infections by parasites and pathogens. Resource sharing may play a role in the dispersal dynamics of pathogens among bees. This study evaluated the occurrence of viruses (DWV, BQCV, ABPV, IAPV, KBV, and CBPV) and microsporidia (Nosema ceranae and Nosema apis) that infect Apis mellifera, as well as pesticide residues in the stingless bees Nannotrigona testaceicornis, Tetragonisca angustula, and Tetragona elongata sharing the same foraging area with A. mellifera. Stingless bees were obtained from 10 nests (two of N. testaceicornis, five of T. angustula, and three of T. elongata) which were kept in the field for 1 year and analyzed for the occurrence of pathogens. Spores of N. ceranae were detected in stingless bees but were not found in their midgut, which indicates that these bees are not affected, but may be vectors of the microsporidium. Viruses were found in 23.4% of stingless bees samples. APBV was the most prevalent virus (10.8%) followed by DWV and BQCV (both in 5.1% of samples). We detected glyphosate and its metabolites in small amounts in all samples. The highest occurrence of N. ceranae spores and viruses was found in autumn-winter and may be related to both the higher frequency of bee defecation into the colony and the low food resources available in the field, which increases the sharing of plant species among the stingless bees and honey bees. This study shows the simultaneous occurrence of viruses and spores of the microsporidium N. ceranae in asymptomatic stingless bees, which suggest that these bees may be vectors of pathogens. MenosAbstract Bees are important pollinators whose population has declined due to several factors, including infections by parasites and pathogens. Resource sharing may play a role in the dispersal dynamics of pathogens among bees. This study evaluated the occurrence of viruses (DWV, BQCV, ABPV, IAPV, KBV, and CBPV) and microsporidia (Nosema ceranae and Nosema apis) that infect Apis mellifera, as well as pesticide residues in the stingless bees Nannotrigona testaceicornis, Tetragonisca angustula, and Tetragona elongata sharing the same foraging area with A. mellifera. Stingless bees were obtained from 10 nests (two of N. testaceicornis, five of T. angustula, and three of T. elongata) which were kept in the field for 1 year and analyzed for the occurrence of pathogens. Spores of N. ceranae were detected in stingless bees but were not found in their midgut, which indicates that these bees are not affected, but may be vectors of the microsporidium. Viruses were found in 23.4% of stingless bees samples. APBV was the most prevalent virus (10.8%) followed by DWV and BQCV (both in 5.1% of samples). We detected glyphosate and its metabolites in small amounts in all samples. The highest occurrence of N. ceranae spores and viruses was found in autumn-winter and may be related to both the higher frequency of bee defecation into the colony and the low food resources available in the field, which increases the sharing of plant species among the stingless bees and honey bees. This study shows ... Mostrar Tudo |
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Palavras-Chave: |
Nannotrigona testaceicornis; Tetragona elongata. |
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Thesagro: |
Tetragonisca Angustula. |
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Thesaurus Nal: |
Pathogens. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02608naa a2200277 a 4500
001 2130435
005 2024-02-06
008 2020 bl uuuu u00u1 u #d
100 1 $aGUIMARÃES-CESTARO, L.
245 $aOccurrence of virus, microsporidia, and pesticide residues in three species of stingless bees (Apidae$bMeliponini) in the field.$h[electronic resource]
260 $c2020
300 $a14 p.
520 $aAbstract Bees are important pollinators whose population has declined due to several factors, including infections by parasites and pathogens. Resource sharing may play a role in the dispersal dynamics of pathogens among bees. This study evaluated the occurrence of viruses (DWV, BQCV, ABPV, IAPV, KBV, and CBPV) and microsporidia (Nosema ceranae and Nosema apis) that infect Apis mellifera, as well as pesticide residues in the stingless bees Nannotrigona testaceicornis, Tetragonisca angustula, and Tetragona elongata sharing the same foraging area with A. mellifera. Stingless bees were obtained from 10 nests (two of N. testaceicornis, five of T. angustula, and three of T. elongata) which were kept in the field for 1 year and analyzed for the occurrence of pathogens. Spores of N. ceranae were detected in stingless bees but were not found in their midgut, which indicates that these bees are not affected, but may be vectors of the microsporidium. Viruses were found in 23.4% of stingless bees samples. APBV was the most prevalent virus (10.8%) followed by DWV and BQCV (both in 5.1% of samples). We detected glyphosate and its metabolites in small amounts in all samples. The highest occurrence of N. ceranae spores and viruses was found in autumn-winter and may be related to both the higher frequency of bee defecation into the colony and the low food resources available in the field, which increases the sharing of plant species among the stingless bees and honey bees. This study shows the simultaneous occurrence of viruses and spores of the microsporidium N. ceranae in asymptomatic stingless bees, which suggest that these bees may be vectors of pathogens.
650 $aPathogens
650 $aTetragonisca Angustula
653 $aNannotrigona testaceicornis
653 $aTetragona elongata
700 1 $aMARTINS, M. F.
700 1 $aLUÍS CARLOS MARTÍNEZ
700 1 $aMARIA LUISA TELES MARQUES FLORÊNCIO ALVES
700 1 $aKARINA ROSA GUIDUGLI-LAZZARINI
700 1 $aROBERTA CORNÉLIO FERREIRA NOCELLI
700 1 $aMALASPINA, O.
700 1 $aSERRÃO, J. E.
700 1 $aTEIXEIRA, É. W.
773 $tNATURWISSENSCHAFTEN - The Science of Nature$gv. 107, n. 16, 2020.
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Embrapa Gado de Leite (CNPGL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
22/08/2001 |
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Data da última atualização: |
27/09/2004 |
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Autoria: |
OLIVEIRA, F. A. de; SILVA, J. J. S. e; CAMPOS, T. G. da S. |
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Título: |
Evapotranspiracao e Desenvolvimento Radicular do Milho Irrigado. |
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Ano de publicação: |
1993 |
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Fonte/Imprenta: |
Pesquisa Agropecuaria Brasileira, Brasilia, v.28, n.12, p.1407-1415,dez.1993 |
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Idioma: |
Português |
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Conteúdo: |
Estudou-se, em um solo Podzolico Vermelho-Amarelo do Projeto de Irrigacao de Sao Desiderio, Barreiras, Bahia, a evapotranspiracao atual (ETA) e o desenvolvimento radicular do milho (Zea mays L.), cv Centralmex. Os resultados indicam que nos 73 dias do ciclo da cultura (dos 22 aos 95 dias) houve uma ETA acumulada de 455 mm, tendo as camadas de 0-20 cm; 20-40 cm; 40-60 cm; 60-80 cm contribuido com extracao da agua em 36%, 39%, 22% e 3%, respectivamente. O maior consumo foi de 8,02 mm/dia, ocorrido aos 81 dias, epoca de formacao da espiga e enchimento dos graos a de maximo crescimento das raizes. O coeficiente da cultura (Kc) cresceu com o desenvolvimento das plantas, variando de 0,41 a 1,16. Foi observada estreita correlacao entre a ETA (mm/dia) e o indice de area foliar (IAF) da cultura e 90% em peso seco de raizes se concentraram nos 45 cm superficiais do solo. |
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Palavras-Chave: |
uso consuntivo de agua. |
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Thesagro: |
Área Foliar; Sistema Radicular; Zea Mays. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/20589/1/pab09_dez_93.pdf
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Marc: |
LEADER 01439naa a2200193 a 4500
001 1105504
005 2004-09-27
008 1993 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA, F. A. de
245 $aEvapotranspiracao e Desenvolvimento Radicular do Milho Irrigado.
260 $c1993
520 $aEstudou-se, em um solo Podzolico Vermelho-Amarelo do Projeto de Irrigacao de Sao Desiderio, Barreiras, Bahia, a evapotranspiracao atual (ETA) e o desenvolvimento radicular do milho (Zea mays L.), cv Centralmex. Os resultados indicam que nos 73 dias do ciclo da cultura (dos 22 aos 95 dias) houve uma ETA acumulada de 455 mm, tendo as camadas de 0-20 cm; 20-40 cm; 40-60 cm; 60-80 cm contribuido com extracao da agua em 36%, 39%, 22% e 3%, respectivamente. O maior consumo foi de 8,02 mm/dia, ocorrido aos 81 dias, epoca de formacao da espiga e enchimento dos graos a de maximo crescimento das raizes. O coeficiente da cultura (Kc) cresceu com o desenvolvimento das plantas, variando de 0,41 a 1,16. Foi observada estreita correlacao entre a ETA (mm/dia) e o indice de area foliar (IAF) da cultura e 90% em peso seco de raizes se concentraram nos 45 cm superficiais do solo.
650 $aÁrea Foliar
650 $aSistema Radicular
650 $aZea Mays
653 $auso consuntivo de agua
700 1 $aSILVA, J. J. S. e
700 1 $aCAMPOS, T. G. da S.
773 $tPesquisa Agropecuaria Brasileira, Brasilia$gv.28, n.12, p.1407-1415,dez.1993
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