| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Semiárido. |
|
Data corrente: |
18/01/2024 |
|
Data da última atualização: |
23/01/2024 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
JARDIM, A. M. da R. F.; MORAIS, J. E. F. de; SOUZA, L. S. B. de; MARIN, F. R.; MOURA, M. S. B. de; MORELLATO, L. P. C.; MONTENEGRO, A. A. de A.; OMETTO, J. P. H. B.; LIMA, J. L. M. P. de; DUBEUX JÚNIOR, J. C. B.; SILVA, T. G. F. da. |
|
Afiliação: |
ALEXANDRE MANIÇOBA DA ROSA FERRAZ JARDIM, UFRPE; JOSÉ EDSON FLORENTINO DE MORAIS, UFRPE, Serra Talhada, PE; LUCIANA SANDRA BASTOS DE SOUZA, UFRPE, Serra Talhada, PE; FABIO RICARDO MARIN, USP; MAGNA SOELMA BESERRA DE MOURA, CPATSA; LEONOR PATRICIA CERDEIRA MORELLATO, UNESP, Rio Claro, SP; ABELARDO ANTÔNIO DE ASSUNÇÃO MONTENEGRO, UFRPE; JEAN PIERRE HENRY BALBAUD OMETTO, INPE; JOÃO L. M. P. DE LIMA, MARE—Marine and Environmental Sciences Centre, ARNET – Aquatic Research Network, Department of Civil Engineering, Faculty of Sciences and Technology; JOSÉ CARLOS BATISTA DUBEUX JÚNIOR, North Florida Research and Education Center, University of Florida; THIERES GEORGE FREIRE DA SILVA, Department of Agricultural Engineering, Federal Rural University of Pernambuco, Serra Talhada, PE. |
|
Título: |
Sink or carbon source? how the Opuntia cactus agroecosystem interacts in the use of carbon, nutrients and radiation in the Brazilian semi-arid region. |
|
Ano de publicação: |
2023 |
|
Fonte/Imprenta: |
Journal of Hydrology, v. 625, 130121, 2023. |
|
DOI: |
https://doi.org/10.1016/j.jhydrol.2023.130121 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Anthropogenic disturbances directly influence environmental processes and increase the concentration of carbon (C) in the atmosphere. Here, we compare the differences in the seasonality of the balance of carbon, energy, and radiation, as well as seek to identify the interrelationships between these environmental variables and their impact on the growth of Opuntia cactus. Data were acquired from an eddy covariance flux tower over a cactus crop agroecosystem (2019–2021) in the Brazilian semi-arid region. In addition, we use plant growth rates, carbon and nutrient stocks, evapotranspiration (ET) and water use efficiency (WUE), and radiation (RUE). We show that the closure of the surface energy balance was 71%, although there are minimal fluxes of available energy lost (29%) by unquantified processes. At all seasons, the highest net ecosystem CO2 exchange (NEE) rate was between 11:00–13:00 (�� 5.75 μmol m�� 2 s�� 1). During the dry and wet-dry season, there was the lowest daily gross primary productivity (GPP) (2.5 μmol m�� 2 s�� 1) and net radiation—Rn (217.97 W m�� 2). Ecosystem respiration was more expressive during the wet season (2.41 μmol m�� 2 s�� 1), and maximum diurnal value of 2.65 μmol m�� 2 s�� 1. Furthermore, the latent heat flux was higher during the wet season (114.68 W m�� 2) and lowered in the dry season (9.39 W m�� 2). The net assimilation rate showed higher values during the dry-wet transition. The dry season presented higher nutrient use efficiency and WUE (14.77 g m�� 2 mm�� 1). The highest ET occurred during the wet season (227 mm), and RUE was 81.48% higher than in the dry season. Overall, the cactus was a potential C sink during the three years of assessment (NEE: �� 377 g C m�� 2 year�� 1; GPP: 881 g C m�� 2 year�� 1). The results help us to understand that most of the Rn energy is used in the sensible heat flux (58% ratio). MenosAnthropogenic disturbances directly influence environmental processes and increase the concentration of carbon (C) in the atmosphere. Here, we compare the differences in the seasonality of the balance of carbon, energy, and radiation, as well as seek to identify the interrelationships between these environmental variables and their impact on the growth of Opuntia cactus. Data were acquired from an eddy covariance flux tower over a cactus crop agroecosystem (2019–2021) in the Brazilian semi-arid region. In addition, we use plant growth rates, carbon and nutrient stocks, evapotranspiration (ET) and water use efficiency (WUE), and radiation (RUE). We show that the closure of the surface energy balance was 71%, although there are minimal fluxes of available energy lost (29%) by unquantified processes. At all seasons, the highest net ecosystem CO2 exchange (NEE) rate was between 11:00–13:00 (�� 5.75 μmol m�� 2 s�� 1). During the dry and wet-dry season, there was the lowest daily gross primary productivity (GPP) (2.5 μmol m�� 2 s�� 1) and net radiation—Rn (217.97 W m�� 2). Ecosystem respiration was more expressive during the wet season (2.41 μmol m�� 2 s�� 1), and maximum diurnal value of 2.65 μmol m�� 2 s�� 1. Furthermore, the latent heat flux was higher during the wet season (114.68 W m�� 2) and lowered in the dry season (9.39 W m�� 2). The net assimilation rate showed higher values during the dry-wet transition. The dry season presented higher nutrient use efficiency and WUE (1... Mostrar Tudo |
|
Palavras-Chave: |
Agroecossistema; Cacto de sequeiro; Concentração de carbono; Covariância de redemoinho; Opuntia cactus; Planta CAM; Semiárido; Sumidouro ou fonte de carbono; Troca líquida de CO2. |
|
Thesagro: |
Caatinga; Cacto; Carbono; Ecossistema; Evapotranspiração. |
|
Thesaurus Nal: |
Evapotranspiration; Opuntia. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1161040/1/Sink-or-carbon-source-how-the-Opuntia-cactus-agroecosystem-interacts-in-the-use-of-carbon-nutrients-and-radiation-in-the-Brazilian-semi-arid-region.pdf
|
|
Marc: |
LEADER 03353naa a2200445 a 4500
001 2161040
005 2024-01-23
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.jhydrol.2023.130121$2DOI
100 1 $aJARDIM, A. M. da R. F.
245 $aSink or carbon source? how the Opuntia cactus agroecosystem interacts in the use of carbon, nutrients and radiation in the Brazilian semi-arid region.$h[electronic resource]
260 $c2023
520 $aAnthropogenic disturbances directly influence environmental processes and increase the concentration of carbon (C) in the atmosphere. Here, we compare the differences in the seasonality of the balance of carbon, energy, and radiation, as well as seek to identify the interrelationships between these environmental variables and their impact on the growth of Opuntia cactus. Data were acquired from an eddy covariance flux tower over a cactus crop agroecosystem (2019–2021) in the Brazilian semi-arid region. In addition, we use plant growth rates, carbon and nutrient stocks, evapotranspiration (ET) and water use efficiency (WUE), and radiation (RUE). We show that the closure of the surface energy balance was 71%, although there are minimal fluxes of available energy lost (29%) by unquantified processes. At all seasons, the highest net ecosystem CO2 exchange (NEE) rate was between 11:00–13:00 (�� 5.75 μmol m�� 2 s�� 1). During the dry and wet-dry season, there was the lowest daily gross primary productivity (GPP) (2.5 μmol m�� 2 s�� 1) and net radiation—Rn (217.97 W m�� 2). Ecosystem respiration was more expressive during the wet season (2.41 μmol m�� 2 s�� 1), and maximum diurnal value of 2.65 μmol m�� 2 s�� 1. Furthermore, the latent heat flux was higher during the wet season (114.68 W m�� 2) and lowered in the dry season (9.39 W m�� 2). The net assimilation rate showed higher values during the dry-wet transition. The dry season presented higher nutrient use efficiency and WUE (14.77 g m�� 2 mm�� 1). The highest ET occurred during the wet season (227 mm), and RUE was 81.48% higher than in the dry season. Overall, the cactus was a potential C sink during the three years of assessment (NEE: �� 377 g C m�� 2 year�� 1; GPP: 881 g C m�� 2 year�� 1). The results help us to understand that most of the Rn energy is used in the sensible heat flux (58% ratio).
650 $aEvapotranspiration
650 $aOpuntia
650 $aCaatinga
650 $aCacto
650 $aCarbono
650 $aEcossistema
650 $aEvapotranspiração
653 $aAgroecossistema
653 $aCacto de sequeiro
653 $aConcentração de carbono
653 $aCovariância de redemoinho
653 $aOpuntia cactus
653 $aPlanta CAM
653 $aSemiárido
653 $aSumidouro ou fonte de carbono
653 $aTroca líquida de CO2
700 1 $aMORAIS, J. E. F. de
700 1 $aSOUZA, L. S. B. de
700 1 $aMARIN, F. R.
700 1 $aMOURA, M. S. B. de
700 1 $aMORELLATO, L. P. C.
700 1 $aMONTENEGRO, A. A. de A.
700 1 $aOMETTO, J. P. H. B.
700 1 $aLIMA, J. L. M. P. de
700 1 $aDUBEUX JÚNIOR, J. C. B.
700 1 $aSILVA, T. G. F. da
773 $tJournal of Hydrology$gv. 625, 130121, 2023.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Semiárido (CPATSA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Amazônia Ocidental. |
|
Data corrente: |
27/07/2022 |
|
Data da última atualização: |
10/02/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 4 |
|
Autoria: |
PELLIN, G. P.; MARTINS, R. A.; QUEIROZ, C. A. de; SOUSA, T. F.; MUNIZ, A. W.; SILVA, G. F. da; MAJOLO, C. |
|
Afiliação: |
GIULIENE PEREIRA PELLIN, Programa Institucional de Apoio à Iniciação Científica do Amazonas (PAIC), CPAA; RAESLEN ARAÚJO MARTINS, Programa Institucional de Apoio à Iniciação Científica do Amazonas (PAIC), CPAA; CLAUDIA AFRAS DE QUEIROZ, Programa de Pós-graduação em Biotecnologia, UFAM; THIAGO FERNANDES SOUSA, Programa de Pós-graduação em Biotecnologia, UFAM; ALEKSANDER WESTPHAL MUNIZ, CPAA; GILVAN FERREIRA DA SILVA, CPAA; CLAUDIA MAJOLO, CPAA. |
|
Título: |
Aeromonas from farmed tambaqui from North Brazil: molecular identification and pathogenic potential. |
|
Ano de publicação: |
2023 |
|
Fonte/Imprenta: |
Ciência Rural, v. 53, n. 4, art. e20220151, 2023. |
|
DOI: |
http://doi.org/10.1590/0103-8478cr20220151 |
|
Idioma: |
Inglês |
|
Notas: |
Título em português: Aeromonas de tambaqui de cultivo do norte do Brasil: identificação molecular e potencial patogênico. |
|
Conteúdo: |
ABSTRACT: The aim of this study was to molecularly identify different species of Aeromonas isolated from farmed tambaqui (Colossoma macropomum) from North Brazil, and evaluate their pathogenic potential by the presence of virulence genes. From the extraction of bacterial DNA, PCR (polymerase chain reaction) of the primers 16S rDNA, aerA (cytolytic enterotoxin), ast (cytotoxic enterotoxin) and act (cytotoxic enterotoxin) were performed. Of 24 isolates evaluated, eight amplified the ast gene, one amplified the act gene, but the areA gene was not amplified in any isolate. Sequencing of the 16S rRNA primer revealed a predominance of Aeromonas jandaei specie (92%). Aeromonas taiwanensis (4%), for the first time isolated from fish in Brazil, and Aeromonas hydrophila (4%) each appeared as just one isolate. Results showed that 32% of Aeromonas isolated from farmed tambaqui have considerable pathogenic potential for systemic damage, since the selected PCR primers are encoding the most common virulence genes in Aeromonas with high pathogenic intensity. RESUMO: O objetivo deste estudo foi identificar molecularmente diferentes espécies de Aeromonas isoladas de tambaqui (Colossoma macropomum) de cultivo do norte do Brasil e avaliar seu potencial patogênico pela presença de genes de virulência. A partir da extração do DNA bacteriano, foi realizada a PCR (reação em cadeia da polimerase) dos primers 16S rDNA, aerA (enterotoxina citolítica), ast (enterotoxina citotóxica) e act (enterotoxina citotóxica). Dos 24 isolados avaliados, oito amplificaram o gene ast, um amplificou o gene act, mas o gene areA não foi amplificado em nenhum isolado. O sequenciamento do primer 16S rRNA revelou uma predominância da espécie Aeromonas jandaei (92%). Aeromonas taiwanensis (4%), pela primeira vez isolada em peixes no Brasil, e Aeromonas hydrophila (4%) apareceram cada uma como apenas um isolado. Os resultados mostram que 32% das Aeromonas isoladas de tambaqui de cultivo apresentam considerável potencial patogênico para danos sistêmicos, uma vez que os primers de PCR selecionados estão codificando os genes de virulência mais comuns em Aeromonas com alta intensidade patogênica. MenosABSTRACT: The aim of this study was to molecularly identify different species of Aeromonas isolated from farmed tambaqui (Colossoma macropomum) from North Brazil, and evaluate their pathogenic potential by the presence of virulence genes. From the extraction of bacterial DNA, PCR (polymerase chain reaction) of the primers 16S rDNA, aerA (cytolytic enterotoxin), ast (cytotoxic enterotoxin) and act (cytotoxic enterotoxin) were performed. Of 24 isolates evaluated, eight amplified the ast gene, one amplified the act gene, but the areA gene was not amplified in any isolate. Sequencing of the 16S rRNA primer revealed a predominance of Aeromonas jandaei specie (92%). Aeromonas taiwanensis (4%), for the first time isolated from fish in Brazil, and Aeromonas hydrophila (4%) each appeared as just one isolate. Results showed that 32% of Aeromonas isolated from farmed tambaqui have considerable pathogenic potential for systemic damage, since the selected PCR primers are encoding the most common virulence genes in Aeromonas with high pathogenic intensity. RESUMO: O objetivo deste estudo foi identificar molecularmente diferentes espécies de Aeromonas isoladas de tambaqui (Colossoma macropomum) de cultivo do norte do Brasil e avaliar seu potencial patogênico pela presença de genes de virulência. A partir da extração do DNA bacteriano, foi realizada a PCR (reação em cadeia da polimerase) dos primers 16S rDNA, aerA (enterotoxina citolítica), ast (enterotoxina citotóxica) e act (enterotoxina ... Mostrar Tudo |
|
Palavras-Chave: |
Aeromonas taiwanensis; Genes de virulência; Reação da polimerase em cadeia; Virulence genes. |
|
Thesagro: |
Colossoma Macropomum; Tambaqui. |
|
Thesaurus NAL: |
Polymerase chain reaction. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1144999/1/Aeromonas-from-farmed.pdf
|
|
Marc: |
LEADER 03246naa a2200301 a 4500
001 2144999
005 2023-02-10
008 2023 bl uuuu u00u1 u #d
024 7 $ahttp://doi.org/10.1590/0103-8478cr20220151$2DOI
100 1 $aPELLIN, G. P.
245 $aAeromonas from farmed tambaqui from North Brazil$bmolecular identification and pathogenic potential.$h[electronic resource]
260 $c2023
500 $aTítulo em português: Aeromonas de tambaqui de cultivo do norte do Brasil: identificação molecular e potencial patogênico.
520 $aABSTRACT: The aim of this study was to molecularly identify different species of Aeromonas isolated from farmed tambaqui (Colossoma macropomum) from North Brazil, and evaluate their pathogenic potential by the presence of virulence genes. From the extraction of bacterial DNA, PCR (polymerase chain reaction) of the primers 16S rDNA, aerA (cytolytic enterotoxin), ast (cytotoxic enterotoxin) and act (cytotoxic enterotoxin) were performed. Of 24 isolates evaluated, eight amplified the ast gene, one amplified the act gene, but the areA gene was not amplified in any isolate. Sequencing of the 16S rRNA primer revealed a predominance of Aeromonas jandaei specie (92%). Aeromonas taiwanensis (4%), for the first time isolated from fish in Brazil, and Aeromonas hydrophila (4%) each appeared as just one isolate. Results showed that 32% of Aeromonas isolated from farmed tambaqui have considerable pathogenic potential for systemic damage, since the selected PCR primers are encoding the most common virulence genes in Aeromonas with high pathogenic intensity. RESUMO: O objetivo deste estudo foi identificar molecularmente diferentes espécies de Aeromonas isoladas de tambaqui (Colossoma macropomum) de cultivo do norte do Brasil e avaliar seu potencial patogênico pela presença de genes de virulência. A partir da extração do DNA bacteriano, foi realizada a PCR (reação em cadeia da polimerase) dos primers 16S rDNA, aerA (enterotoxina citolítica), ast (enterotoxina citotóxica) e act (enterotoxina citotóxica). Dos 24 isolados avaliados, oito amplificaram o gene ast, um amplificou o gene act, mas o gene areA não foi amplificado em nenhum isolado. O sequenciamento do primer 16S rRNA revelou uma predominância da espécie Aeromonas jandaei (92%). Aeromonas taiwanensis (4%), pela primeira vez isolada em peixes no Brasil, e Aeromonas hydrophila (4%) apareceram cada uma como apenas um isolado. Os resultados mostram que 32% das Aeromonas isoladas de tambaqui de cultivo apresentam considerável potencial patogênico para danos sistêmicos, uma vez que os primers de PCR selecionados estão codificando os genes de virulência mais comuns em Aeromonas com alta intensidade patogênica.
650 $aPolymerase chain reaction
650 $aColossoma Macropomum
650 $aTambaqui
653 $aAeromonas taiwanensis
653 $aGenes de virulência
653 $aReação da polimerase em cadeia
653 $aVirulence genes
700 1 $aMARTINS, R. A.
700 1 $aQUEIROZ, C. A. de
700 1 $aSOUSA, T. F.
700 1 $aMUNIZ, A. W.
700 1 $aSILVA, G. F. da
700 1 $aMAJOLO, C.
773 $tCiência Rural$gv. 53, n. 4, art. e20220151, 2023.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
