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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
03/01/2018 |
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Data da última atualização: |
03/01/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CAVALETT, A.; SILVA, M. A. C. da; TOYOFUKU, T.; MENDES, R.; TAKETANI, R. G.; PEDRINI, J.; FREITAS, R. C. de; SUMIDA, P. Y. G.; YAMANAKA, T.; NAGANO, Y.; PELLIZARI, V. H.; ALVAREZ PEREZ, J. A. LIMA, A. O. S.; KITAZATO, H.; LIMA, A. O. de S. |
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Afiliação: |
ANGELICA CAVALETT, Univali; MARCUS ADONAI CASTRO DA SILVA, Univali; TAKASHI TOYOFUKU, Japan Agency for Marine-Earth Science and Technology; RODRIGO MENDES, CNPMA; RODRIGO GOUVEA TAKETANI; JESSICA PEDRINI, Univali; ROBERT CARDOSO DE FREITAS, Univali; PAULO YUKIO GOMES SUMIDA, Japan Agency for Marine-Earth Science and Technology; TOSHIRO YAMANAKA, Okayama University; YURIKO NAGANO, Japan Agency for Marine-Earth Science and Technology; VIVIAN HELENA PELLIZARI, IO-USP; JOSE ANGEL ALVAREZ PEREZ, Univali; HIROSHI KITAZATO, Japan Agency for Marine-Earth Science and Technology; ANDRE OLIVEIRA DE SOUZA LIMA, Univali. |
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Título: |
Dominance of Epsilonproteobacteria associated with a whale fall at a 4204 m depth - South Atlantic Ocean. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Deep Sea Research Part II, v. 146, p. 53-58, 2017. |
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DOI: |
http://dx.doi.org/10.1016/j.dsr2.2017.10.012 |
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Idioma: |
Inglês |
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Conteúdo: |
The deep ocean is the largest marine environment on Earth and is home to a large reservoir of biodiversity. Within the deep ocean, large organic falls attract a suite of metazoans and microorganisms, which form an important community that, in part, relies on reduced chemical compounds. Here, we describe a deep-sea (4204 m) microbial community associated with sediments collected underneath a whale fall skeleton in the South Atlantic Ocean. Metagenomic analysis of 1 Gb of Illumina HiSeq. 2000 reads, including taxonomic and functional genes, was performed by using the MG-RAST pipeline, SEED, COG and the KEGG database. The results showed that Proteobacteria (79%) was the main phylum represented. The most dominant bacterial class in this phylum was Epsilonproteobacteria (69%), and Sulfurovum sp. NBC37-1 (97%) was the dominant species. Different species of Epsilonproteobacteria have been described in marine and terrestrial environments as important organisms for nutrient cycling. Functional analysis revealed key genes for nitrogen and sulfur cycles, including protein sequences for Sox system (sulfur oxidation) enzymes. These enzymes were mainly those of the Epsilonproteobacteria, indicating their importance for nitrogen and sulfur cycles and the balance of nutrients in this environment. |
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Palavras-Chave: |
Aquatic bacteria; Bacteria marinha; Marine bacteria. |
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Thesagro: |
Bactéria; Oceano. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02337naa a2200349 a 4500
001 2084114
005 2018-01-03
008 2017 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.dsr2.2017.10.012$2DOI
100 1 $aCAVALETT, A.
245 $aDominance of Epsilonproteobacteria associated with a whale fall at a 4204 m depth - South Atlantic Ocean.$h[electronic resource]
260 $c2017
520 $aThe deep ocean is the largest marine environment on Earth and is home to a large reservoir of biodiversity. Within the deep ocean, large organic falls attract a suite of metazoans and microorganisms, which form an important community that, in part, relies on reduced chemical compounds. Here, we describe a deep-sea (4204 m) microbial community associated with sediments collected underneath a whale fall skeleton in the South Atlantic Ocean. Metagenomic analysis of 1 Gb of Illumina HiSeq. 2000 reads, including taxonomic and functional genes, was performed by using the MG-RAST pipeline, SEED, COG and the KEGG database. The results showed that Proteobacteria (79%) was the main phylum represented. The most dominant bacterial class in this phylum was Epsilonproteobacteria (69%), and Sulfurovum sp. NBC37-1 (97%) was the dominant species. Different species of Epsilonproteobacteria have been described in marine and terrestrial environments as important organisms for nutrient cycling. Functional analysis revealed key genes for nitrogen and sulfur cycles, including protein sequences for Sox system (sulfur oxidation) enzymes. These enzymes were mainly those of the Epsilonproteobacteria, indicating their importance for nitrogen and sulfur cycles and the balance of nutrients in this environment.
650 $aBactéria
650 $aOceano
653 $aAquatic bacteria
653 $aBacteria marinha
653 $aMarine bacteria
700 1 $aSILVA, M. A. C. da
700 1 $aTOYOFUKU, T.
700 1 $aMENDES, R.
700 1 $aTAKETANI, R. G.
700 1 $aPEDRINI, J.
700 1 $aFREITAS, R. C. de
700 1 $aSUMIDA, P. Y. G.
700 1 $aYAMANAKA, T.
700 1 $aNAGANO, Y.
700 1 $aPELLIZARI, V. H.
700 1 $aALVAREZ PEREZ, J. A. LIMA, A. O. S.
700 1 $aKITAZATO, H.
700 1 $aLIMA, A. O. de S.
773 $tDeep Sea Research Part II$gv. 146, p. 53-58, 2017.
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Embrapa Meio Ambiente (CNPMA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
06/11/2023 |
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Data da última atualização: |
04/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 3 |
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Autoria: |
WASSERMAN, M. A. V.; VIANA, A. G.; SILVA, M. M. da; BARTOLY, F.; PEREIRA, T. R.; VIVONE, R. J.; FERREIRA, A. C. de M.; PEREZ, D. V. |
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Afiliação: |
MARIA ANGÉLICA VERGARA WASSERMAN, INSTITUTO DE RADIOPROTEÇÃO E DOSIMETRIA; ALINE GONZALEZ VIANA, INSTITUTO DE RADIOPROTEÇÃO E DOSIMETRIA; MICHELE MARIA DA SILVA, INSTITUTO DE RADIOPROTEÇÃO E DOSIMETRIA; FLAVIA BARTOLY, INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DO RIO DE JANEIRO; TATIANE ROCHA PEREIRA, INSTITUTO DE RADIOPROTEÇÃO E DOSIMETRIA; RONALDO JANVROT VIVONE, INSTITUTO DE RADIOPROTEÇÃO E DOSIMETRIA; ANA CRISTINA DE MELO FERREIRA, INSTITUTO DE RADIOPROTEÇÃO E DOSIMETRIA; DANIEL VIDAL PEREZ, CNPS. |
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Título: |
Analysing the behaviour of 90Sr and stable Sr in highly weathered soils: soil to plant transfer factor and geochemical partitioning. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Journal of Environmental Radioactivity, v. 271, 107319, Jan. 2024. |
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DOI: |
https://doi.org/10.1016/j.jenvrad.2023.107319 |
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Idioma: |
Inglês |
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Conteúdo: |
Public concerns over environmental protection have increased after Fukushima accident. The soil-plant transfer factor (Fv) is a critical parameter for environmental risk assessment. 137Cs Fv values determined in acid Brazilian soils could be two orders of magnitude higher than Fv values measured in soils affected by the Chernobyl accident. This paper studied the behaviour of 90Sr in Brazilian soils where very few 90Sr Fv data is available. All classes of studied soils (Ferralsol, Acrisol and Nitisol) showed that more than 80% of total 90Sr in soils remains potentially mobile, mainly at the bioavailable phase, more than 2 years after soil contamination in an experiment conducted in lysimeters. Higher 90Sr Fv for maize and cabbage was observed in the acid soils with low content of exchangeable Ca, lower Fv values occurred at Nitisol, the subtropical soil type. It seems that the behaviour of 90Sr in these soils are mainly controlled by ionic competition mechanisms occurring for root uptake and sorption sites, with stable Sr and major nutrients (Ca, Mg and K). The mineralogy also seems to play a relevant role, since goethite rich clay soil presented 90Sr Fv values higher one or two orders of magnitude than 90Sr Fv values observed at clayed soil goethite rich with trace of vermiculite, for all studied crops. The high rate of 90Sr migration down the soil profiles observed for the studied soils during the 2 first years after contamination suggests a high rate of transfer to groundwater, even transfer to leafy crop group can be also a relevant pathway. In the present study, maize, among other plant species, presented the lowest Fv values, even when compared with maize cultivated in temperate soil. Our results suggest that stable Sr may not be a very good analogue of 90Sr for determining plant Fv values: geometric mean of stable Sr Fv for maize was Fvmaize = 6.3E-1 ± 2.1E0 (n = 8) and for 90Sr was Fvmaize = 1.8E-2 ± 2.5E0 (n = 16), geometric mean of stable Sr Fv for cabbage was Fvcabbage = 1.4E0 ± 3.9E0 (n = 17) and for 90Sr was Fvcabbage = 7.9E-1 ± 4.4E0 (n = 18). MenosPublic concerns over environmental protection have increased after Fukushima accident. The soil-plant transfer factor (Fv) is a critical parameter for environmental risk assessment. 137Cs Fv values determined in acid Brazilian soils could be two orders of magnitude higher than Fv values measured in soils affected by the Chernobyl accident. This paper studied the behaviour of 90Sr in Brazilian soils where very few 90Sr Fv data is available. All classes of studied soils (Ferralsol, Acrisol and Nitisol) showed that more than 80% of total 90Sr in soils remains potentially mobile, mainly at the bioavailable phase, more than 2 years after soil contamination in an experiment conducted in lysimeters. Higher 90Sr Fv for maize and cabbage was observed in the acid soils with low content of exchangeable Ca, lower Fv values occurred at Nitisol, the subtropical soil type. It seems that the behaviour of 90Sr in these soils are mainly controlled by ionic competition mechanisms occurring for root uptake and sorption sites, with stable Sr and major nutrients (Ca, Mg and K). The mineralogy also seems to play a relevant role, since goethite rich clay soil presented 90Sr Fv values higher one or two orders of magnitude than 90Sr Fv values observed at clayed soil goethite rich with trace of vermiculite, for all studied crops. The high rate of 90Sr migration down the soil profiles observed for the studied soils during the 2 first years after contamination suggests a high rate of transfer to groundw... Mostrar Tudo |
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Palavras-Chave: |
Geochemical portioning; Maize; Soil-plant transfer factor. |
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Thesagro: |
Solo Tropical. |
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Thesaurus NAL: |
Cabbage; Tropical soils. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 03020naa a2200289 a 4500
001 2157813
005 2023-12-04
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.jenvrad.2023.107319$2DOI
100 1 $aWASSERMAN, M. A. V.
245 $aAnalysing the behaviour of 90Sr and stable Sr in highly weathered soils$bsoil to plant transfer factor and geochemical partitioning.$h[electronic resource]
260 $c2024
520 $aPublic concerns over environmental protection have increased after Fukushima accident. The soil-plant transfer factor (Fv) is a critical parameter for environmental risk assessment. 137Cs Fv values determined in acid Brazilian soils could be two orders of magnitude higher than Fv values measured in soils affected by the Chernobyl accident. This paper studied the behaviour of 90Sr in Brazilian soils where very few 90Sr Fv data is available. All classes of studied soils (Ferralsol, Acrisol and Nitisol) showed that more than 80% of total 90Sr in soils remains potentially mobile, mainly at the bioavailable phase, more than 2 years after soil contamination in an experiment conducted in lysimeters. Higher 90Sr Fv for maize and cabbage was observed in the acid soils with low content of exchangeable Ca, lower Fv values occurred at Nitisol, the subtropical soil type. It seems that the behaviour of 90Sr in these soils are mainly controlled by ionic competition mechanisms occurring for root uptake and sorption sites, with stable Sr and major nutrients (Ca, Mg and K). The mineralogy also seems to play a relevant role, since goethite rich clay soil presented 90Sr Fv values higher one or two orders of magnitude than 90Sr Fv values observed at clayed soil goethite rich with trace of vermiculite, for all studied crops. The high rate of 90Sr migration down the soil profiles observed for the studied soils during the 2 first years after contamination suggests a high rate of transfer to groundwater, even transfer to leafy crop group can be also a relevant pathway. In the present study, maize, among other plant species, presented the lowest Fv values, even when compared with maize cultivated in temperate soil. Our results suggest that stable Sr may not be a very good analogue of 90Sr for determining plant Fv values: geometric mean of stable Sr Fv for maize was Fvmaize = 6.3E-1 ± 2.1E0 (n = 8) and for 90Sr was Fvmaize = 1.8E-2 ± 2.5E0 (n = 16), geometric mean of stable Sr Fv for cabbage was Fvcabbage = 1.4E0 ± 3.9E0 (n = 17) and for 90Sr was Fvcabbage = 7.9E-1 ± 4.4E0 (n = 18).
650 $aCabbage
650 $aTropical soils
650 $aSolo Tropical
653 $aGeochemical portioning
653 $aMaize
653 $aSoil-plant transfer factor
700 1 $aVIANA, A. G.
700 1 $aSILVA, M. M. da
700 1 $aBARTOLY, F.
700 1 $aPEREIRA, T. R.
700 1 $aVIVONE, R. J.
700 1 $aFERREIRA, A. C. de M.
700 1 $aPEREZ, D. V.
773 $tJournal of Environmental Radioactivity$gv. 271, 107319, Jan. 2024.
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