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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
17/09/2014 |
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Data da última atualização: |
29/04/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA FILHO, E. C.; RAMOS, F. R.; MIRANDA, B. C. G.; MUNIZ, D. H. F.; PONTES, R. G. M. S. de. |
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Afiliação: |
EDUARDO CYRINO DE OLIVEIRA FILHO, CPAC; FELIPE R. RAMOS; BARBARA C. G. MIRANDA, UNICEUB; DAPHNE HELOISA DE FREITAS MUNIZ, CPAC; ROSE GOMES MONNERAT SOLON DE PONTES, CENARGEN. |
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Título: |
Evaluating the elimination of Brazilian Entomopathogenic Bacillus by non-target aquatic species: an experimental study. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Bulletin of Environmental Contamination and Toxicology, v. 93, n. 4, p.461-464, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
Ecotoxicity tests are key to predict environmental hazards resulting from chemical and biological pesticides in non-target species. In order to assess the effects of microbial pesticides it is important to determine if they cause infection in test organisms. At present the microbial elimination rate or clearance is not included in ecotoxicological regulatory protocols. This study evaluated the elimination of Bacillus thuringiensis and Bacillus sphaericus from fish and snails, after 30 days? exposure to commercial formulations of such entomopathogens. Data obtained showed that in clean water the tendency to eliminate microbial agents from the body of the exposed organisms is gradual over time but after 7 days the fish and snails were free of the two tested Bacillus spp. |
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Palavras-Chave: |
Aquatic persistence; Biopesticida; Persistência aquática. |
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Thesagro: |
Bacillus Thuringiensis; Biomphalaria Glabrata; Pesticida. |
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Thesaurus Nal: |
Bacillus sphaericus; Biopesticides; Danio rerio; Ecotoxicology. |
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Categoria do assunto: |
--
S Ciências Biológicas |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/180018/1/Oliveira-Filho2014-Article-EvaluatingTheEliminationOfBraz.pdf
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Marc: |
LEADER 01681naa a2200289 a 4500
001 1995182
005 2024-04-29
008 2014 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA FILHO, E. C.
245 $aEvaluating the elimination of Brazilian Entomopathogenic Bacillus by non-target aquatic species$ban experimental study.
260 $c2014
520 $aEcotoxicity tests are key to predict environmental hazards resulting from chemical and biological pesticides in non-target species. In order to assess the effects of microbial pesticides it is important to determine if they cause infection in test organisms. At present the microbial elimination rate or clearance is not included in ecotoxicological regulatory protocols. This study evaluated the elimination of Bacillus thuringiensis and Bacillus sphaericus from fish and snails, after 30 days? exposure to commercial formulations of such entomopathogens. Data obtained showed that in clean water the tendency to eliminate microbial agents from the body of the exposed organisms is gradual over time but after 7 days the fish and snails were free of the two tested Bacillus spp.
650 $aBacillus sphaericus
650 $aBiopesticides
650 $aDanio rerio
650 $aEcotoxicology
650 $aBacillus Thuringiensis
650 $aBiomphalaria Glabrata
650 $aPesticida
653 $aAquatic persistence
653 $aBiopesticida
653 $aPersistência aquática
700 1 $aRAMOS, F. R.
700 1 $aMIRANDA, B. C. G.
700 1 $aMUNIZ, D. H. F.
700 1 $aPONTES, R. G. M. S. de
773 $tBulletin of Environmental Contamination and Toxicology$gv. 93, n. 4, p.461-464, 2014.
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Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
08/07/2005 |
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Data da última atualização: |
02/12/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
FORTINI, L. B.; MULKEY, S. S.; ZARIN, D. J.; VASCONCELOS, S. S.; CARVALHO, C. J. R. de. |
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Afiliação: |
LUCAS B. FORTINI, University of Florida; STEPHEN S. MULKEY, University of Florida; DANIEL J. ZARIN, University of Florida; STEEL S. VASCONCELOS, University of Florida; CLAUDIO JOSE REIS DE CARVALHO, CPATU. |
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Título: |
Drought constraints on leaf gas exchange by Miconia ciliata (Melastomataceae) in the understory of an eastern Amazonian regrowth forest stand. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
American Journal of Botany, v. 90, n. 7, p. 1064-1070, Jul. 2003. |
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Descrição Física: |
il. |
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DOI: |
10.3732/ajb.90.7.1064 |
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Idioma: |
Inglês |
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Conteúdo: |
Analyses of the effects of drought stress on Amazonian regrowth stands are lacking. We measured leaf gas exchange and leaf water potential of Miconia ciliata (Melastomataceae) in a dry-season irrigation experiment in 14-yr-old regrowth. In the dry season, irrigated plants maintained significantly higher leaf water potentials, photosynthetic capacity at light saturation (Amax), stomatal conductance (gs), internal CO2 concentration (Ci), and lower Amax/gs than control plants. The degree of dry-season down-regulation of control plant Amax, along with its fast recovery following rain, reveals the importance of occasional dry-season rains to the carbon budget of M. ciliata. During the wet season, we observed higher Amax for control plants than for plants that had been irrigated during the dry season. We hypothesize that reduced drought constraints on photosynthesis of irrigated plants advanced the flowering and fruiting phenology of irrigated plants into the dry season. Flowers and fruits of control plants developed later, during the wet season, potentially stimulating a compensatory reproductive photosynthesis response in nearby leaves. The relative drought intolerance of M. ciliata may be a deciding factor in its ability to survive through the dynamic successional development of the regrowth stand studied. |
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Palavras-Chave: |
Floresta tripical; Miconia ciliata. |
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Thesagro: |
Fenologia; Floresta Secundaria; Fotossíntese; Melastomataceae. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02189naa a2200277 a 4500
001 1407030
005 2022-12-02
008 2003 bl uuuu u00u1 u #d
024 7 $a10.3732/ajb.90.7.1064$2DOI
100 1 $aFORTINI, L. B.
245 $aDrought constraints on leaf gas exchange by Miconia ciliata (Melastomataceae) in the understory of an eastern Amazonian regrowth forest stand.$h[electronic resource]
260 $c2003
300 $cil.
520 $aAnalyses of the effects of drought stress on Amazonian regrowth stands are lacking. We measured leaf gas exchange and leaf water potential of Miconia ciliata (Melastomataceae) in a dry-season irrigation experiment in 14-yr-old regrowth. In the dry season, irrigated plants maintained significantly higher leaf water potentials, photosynthetic capacity at light saturation (Amax), stomatal conductance (gs), internal CO2 concentration (Ci), and lower Amax/gs than control plants. The degree of dry-season down-regulation of control plant Amax, along with its fast recovery following rain, reveals the importance of occasional dry-season rains to the carbon budget of M. ciliata. During the wet season, we observed higher Amax for control plants than for plants that had been irrigated during the dry season. We hypothesize that reduced drought constraints on photosynthesis of irrigated plants advanced the flowering and fruiting phenology of irrigated plants into the dry season. Flowers and fruits of control plants developed later, during the wet season, potentially stimulating a compensatory reproductive photosynthesis response in nearby leaves. The relative drought intolerance of M. ciliata may be a deciding factor in its ability to survive through the dynamic successional development of the regrowth stand studied.
650 $aAmazonia
650 $aFenologia
650 $aFloresta Secundaria
650 $aFotossíntese
650 $aMelastomataceae
653 $aFloresta tripical
653 $aMiconia ciliata
700 1 $aMULKEY, S. S.
700 1 $aZARIN, D. J.
700 1 $aVASCONCELOS, S. S.
700 1 $aCARVALHO, C. J. R. de
773 $tAmerican Journal of Botany$gv. 90, n. 7, p. 1064-1070, Jul. 2003.
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Embrapa Amazônia Oriental (CPATU) |
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