| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Solos. |
|
Data corrente: |
05/05/2011 |
|
Data da última atualização: |
03/11/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
BIRK, J. J.; TEIXEIRA, W. G.; NEVES, E. G.; GLASER, B. |
|
Afiliação: |
Jago Jonathan Birk, University of Bayreuth; WENCESLAU GERALDES TEIXEIRA, CNPS; Eduardo Góes Neves, Universidade de São Paulo; Bruno Glaser, University of Bayreuth. |
|
Título: |
Faeces deposition on Amazonian Anthrosols as assessed from 5b-stanols. |
|
Ano de publicação: |
2011 |
|
Fonte/Imprenta: |
Journal of Archaeological Science, v. 38, n. 6, p. 1209-1220, Jul. 2011. |
|
DOI: |
https://doi.org/10.1016/j.jas.2010.12.015 |
|
Idioma: |
Inglês |
|
Conteúdo: |
In the Amazon Basin, within a landscape of infertile soils, fertile Anthrosols of pre-Columbian origin occur (Amazonian Dark Earths or terra preta de Índio). These soils are characterized by high amounts of charred organic matter (black carbon, biochar) and high nutrient stocks. Frequently, they were considered as sign for intensive landscape domestication by way of sedentary agriculture and as sign for large settlements in pre-Columbian Amazonia. Beyond the archaeological interest in Amazonian Dark Earths, they increasingly receive attention because it is assumed that they could serve as a model for sustainable agriculture in the humid tropics (terra preta nova). Both questions lack information about the pre-Columbian practices which were responsible for the genesis of Amazonian Dark Earths. It has often been hypothesized that deposition of faeces could have contributed to the high nutrient stocks in these soils, but no study has focussed on this question yet. We analyzed the biomarkers for faeces 5b-stanols as well as their precursors and their 5b-isomers in Amazonian Dark Earths and reference soils to investigate the input of faeces into Amazonian Dark Earths. Using Amazonian Dark Earths as example, we discuss the application of threshold values for specific stanols to evaluate faeces deposition in archaeological soils and demonstrate an alternative approach which is based on a comparison of the concentration patterns of 5b-stanols with the concentration patterns of their precursors and their 5b-isomers as well as with local backgrounds. The concentration patterns of sterols show that faeces were deposited on Amazonian Dark Earths. MenosIn the Amazon Basin, within a landscape of infertile soils, fertile Anthrosols of pre-Columbian origin occur (Amazonian Dark Earths or terra preta de Índio). These soils are characterized by high amounts of charred organic matter (black carbon, biochar) and high nutrient stocks. Frequently, they were considered as sign for intensive landscape domestication by way of sedentary agriculture and as sign for large settlements in pre-Columbian Amazonia. Beyond the archaeological interest in Amazonian Dark Earths, they increasingly receive attention because it is assumed that they could serve as a model for sustainable agriculture in the humid tropics (terra preta nova). Both questions lack information about the pre-Columbian practices which were responsible for the genesis of Amazonian Dark Earths. It has often been hypothesized that deposition of faeces could have contributed to the high nutrient stocks in these soils, but no study has focussed on this question yet. We analyzed the biomarkers for faeces 5b-stanols as well as their precursors and their 5b-isomers in Amazonian Dark Earths and reference soils to investigate the input of faeces into Amazonian Dark Earths. Using Amazonian Dark Earths as example, we discuss the application of threshold values for specific stanols to evaluate faeces deposition in archaeological soils and demonstrate an alternative approach which is based on a comparison of the concentration patterns of 5b-stanols with the concentration patterns of their... Mostrar Tudo |
|
Palavras-Chave: |
Amazonian Dark Earths; Landscape domestication. |
|
Thesaurus Nal: |
Amazonia; Anthrosols; biomarkers; terra preta. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
Marc: |
LEADER 02386naa a2200241 a 4500
001 1887745
005 2021-11-03
008 2011 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.jas.2010.12.015$2DOI
100 1 $aBIRK, J. J.
245 $aFaeces deposition on Amazonian Anthrosols as assessed from 5b-stanols.$h[electronic resource]
260 $c2011
520 $aIn the Amazon Basin, within a landscape of infertile soils, fertile Anthrosols of pre-Columbian origin occur (Amazonian Dark Earths or terra preta de Índio). These soils are characterized by high amounts of charred organic matter (black carbon, biochar) and high nutrient stocks. Frequently, they were considered as sign for intensive landscape domestication by way of sedentary agriculture and as sign for large settlements in pre-Columbian Amazonia. Beyond the archaeological interest in Amazonian Dark Earths, they increasingly receive attention because it is assumed that they could serve as a model for sustainable agriculture in the humid tropics (terra preta nova). Both questions lack information about the pre-Columbian practices which were responsible for the genesis of Amazonian Dark Earths. It has often been hypothesized that deposition of faeces could have contributed to the high nutrient stocks in these soils, but no study has focussed on this question yet. We analyzed the biomarkers for faeces 5b-stanols as well as their precursors and their 5b-isomers in Amazonian Dark Earths and reference soils to investigate the input of faeces into Amazonian Dark Earths. Using Amazonian Dark Earths as example, we discuss the application of threshold values for specific stanols to evaluate faeces deposition in archaeological soils and demonstrate an alternative approach which is based on a comparison of the concentration patterns of 5b-stanols with the concentration patterns of their precursors and their 5b-isomers as well as with local backgrounds. The concentration patterns of sterols show that faeces were deposited on Amazonian Dark Earths.
650 $aAmazonia
650 $aAnthrosols
650 $abiomarkers
650 $aterra preta
653 $aAmazonian Dark Earths
653 $aLandscape domestication
700 1 $aTEIXEIRA, W. G.
700 1 $aNEVES, E. G.
700 1 $aGLASER, B.
773 $tJournal of Archaeological Science$gv. 38, n. 6, p. 1209-1220, Jul. 2011.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Solos (CNPS) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Soja. |
|
Data corrente: |
10/01/2006 |
|
Data da última atualização: |
10/01/2006 |
|
Autoria: |
MOREIRA, A. G.; PEREIRA, C. O.; MELLO, R. N.; ALMEIDA, A. M.; ZERBINI, F. M. |
|
Título: |
Partial molecular characterization of two begomoviruses infecting soybean and associated weeds in Brazil. |
|
Ano de publicação: |
2005 |
|
Fonte/Imprenta: |
Fitopatologia Brasileira, Brasília, DF, v. 30, p. S 189, ago. 2005. Suplemento. ref. 801. |
|
Idioma: |
Português |
|
Notas: |
Edição dos Resumos do XXXVIII Congresso Brasileiro de Fitopatologia, Brasília, DF, ago. 2005. Nome correto do quarto autor: ALMEIDA, A. M. R. |
|
Conteúdo: |
Viruses in the genus Begomovirus have two genomic components of circular, single-stranded DNA, are transmitted by whiteflies and infect dicot plants. Although the economic importance of begomoviruses in soybean in Brazil is secondary, the detection of these pathogens in the crop is concerning. Samples of soybean and associated weeds showing begomovirus-like symptoms were collected in Paraná state. Infection was confirmed by PCR, and two putative nove I specles, provisionally named "virus A" and "virus B", were detected. The objective of this work was to characterize these two putative new species. Viral genomes were amplified using the DNA polymerase from phage phi29, cloned and sequenced. The complete DNA-B sequence of "virus A", and a partial DNA-A sequence of "virus B", were determined, Sequence comparisons and phylogenetic analyses indicated that the DNA-A from "virus B" and the DNA-B from "virus A" have the highest identity with Sida micrantha mosaic virus (SimMV) isolates A2 and B3, respectively. However, identity levels are below 89%, indicating that both viruses actually comprise novel begomovirus species. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01836naa a2200181 a 4500
001 1468739
005 2006-01-10
008 2005 bl --- 0-- u #d
100 1 $aMOREIRA, A. G.
245 $aPartial molecular characterization of two begomoviruses infecting soybean and associated weeds in Brazil.
260 $c2005
500 $aEdição dos Resumos do XXXVIII Congresso Brasileiro de Fitopatologia, Brasília, DF, ago. 2005. Nome correto do quarto autor: ALMEIDA, A. M. R.
520 $aViruses in the genus Begomovirus have two genomic components of circular, single-stranded DNA, are transmitted by whiteflies and infect dicot plants. Although the economic importance of begomoviruses in soybean in Brazil is secondary, the detection of these pathogens in the crop is concerning. Samples of soybean and associated weeds showing begomovirus-like symptoms were collected in Paraná state. Infection was confirmed by PCR, and two putative nove I specles, provisionally named "virus A" and "virus B", were detected. The objective of this work was to characterize these two putative new species. Viral genomes were amplified using the DNA polymerase from phage phi29, cloned and sequenced. The complete DNA-B sequence of "virus A", and a partial DNA-A sequence of "virus B", were determined, Sequence comparisons and phylogenetic analyses indicated that the DNA-A from "virus B" and the DNA-B from "virus A" have the highest identity with Sida micrantha mosaic virus (SimMV) isolates A2 and B3, respectively. However, identity levels are below 89%, indicating that both viruses actually comprise novel begomovirus species.
700 1 $aPEREIRA, C. O.
700 1 $aMELLO, R. N.
700 1 $aALMEIDA, A. M.
700 1 $aZERBINI, F. M.
773 $tFitopatologia Brasileira, Brasília, DF$gv. 30, p. S 189, ago. 2005. Suplemento. ref. 801.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Soja (CNPSO) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
