| |
|
|
| Registros recuperados : 105 | |
| 7. |  | YAMANAKA, C. H.; MORITA, M. A.; NAOE, L. K. Comportamento da cultivar de soja CS 201 na regiao central do Brasil. In: REUNIAO DE PESQUISA DE SOJA DA REGIAO CENTRAL DO BRASIL, 21., 1999, Dourados, MS. Resumos. Dourados: Embrapa Agropecuaria Oeste / Londrina: Embrapa Soja, 1999. p.111. (Embrapa Agropecuaria Oeste. Documentos, 7; Embrapa Soja. Documentos, 134).| Biblioteca(s): Embrapa Cerrados. |
|   |
| 20. | | YAMANAKA, C. H.; SHIBUYA, Y.; GIMENES, J. D.; SASSAKI, F. Efeito de diferentes metodos de preparo do solo sobre o rendimento na cultura de soja. Planura, MG, 1985/86. In: CONGRESSO DE DIFUSAO DE TECNOLOGIA EM GRANDES CULTURAS, 2., 1986, Maringa. [Anais]. [S.l.]: Cooperativa Agricola de Cotia/Cooperativa Central, 1986. p.231-232.| Biblioteca(s): Embrapa Soja. |
| |
| Registros recuperados : 105 | |
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Cerrados; Embrapa Soja. |
|
Data corrente: |
07/02/2017 |
|
Data da última atualização: |
26/07/2017 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
SOUZA, R. C.; MENDES, I. C.; REIS-JUNIOR, F. B.; CARVALHO, F. M.; NOGUEIRA, M. A.; VASCONCELOS, A. T. R.; VICENTE, V. A.; HUNGRIA, M. |
|
Afiliação: |
MARCO ANTONIO NOGUEIRA, CNPSO; MARIANGELA HUNGRIA DA CUNHA, CNPSO. |
|
Título: |
Shifts in taxonomic and functional microbial diversity with agriculture: How fragile is the Brazilian Cerrado? |
|
Ano de publicação: |
2016 |
|
Fonte/Imprenta: |
BMC Microbiology, [S. l.], v. 16, n. 42, 2016. 15 p. |
|
Idioma: |
Inglês
Português |
|
Conteúdo: |
Abstract: Background: The Cerrado ? an edaphic type of savannah ? comprises the second largest biome of the Brazilian territory and is the main area for grain production in the country, but information about the impact of land conversion to agriculture on microbial diversity is still scarce. We used a shotgun metagenomic approach to compare undisturbed (native) soil and soils cropped for 23 years with soybean/maize under conservation tillage ? ?no-till? (NT) ? and conventional tillage (CT) systems in the Cerrado biome. Results: Soil management and fertilizer inputs with the introduction of agriculture improved chemical properties, but decreased soil macroporosity and microbial biomass of carbon and nitrogen. Principal coordinates analyses confirmed different taxonomic and functional profiles for each treatment. There was predominance of the Bacteria domain, especially the phylum Proteobacteria, with higher numbers of sequences in the NT and CT treatments; Archaea and Viruses also had lower numbers of sequences in the undisturbed soil. Within the Alphaproteobacteria, there was dominance of Rhizobiales and of the genus Bradyrhizobium in the NT and CT systems, attributed to massive inoculation of soybean, and also of Burkholderiales. In contrast, Rhizobium, Azospirillum, Xanthomonas, Pseudomonas and Acidobacterium predominated in the native Cerrado. More Eukaryota, especially of the phylum Ascomycota were detected in the NT. The functional analysis revealed lower numbers of sequences in the five dominant categories for the CT system, whereas the undisturbed Cerrado presented higher abundance. Conclusion: High impact of agriculture in taxonomic and functional microbial diversity in the biome Cerrado was confirmed. Functional diversity was not necessarily associated with taxonomic diversity, as the less conservationist treatment (CT) presented increased taxonomic sequences and reduced functional profiles, indicating a strategy to try to maintain soil functioning by favoring taxa that are probably not the most efficient for some functions. Our results highlight that underneath the rustic appearance of the Cerrado vegetation there is a fragile soil microbial community. MenosAbstract: Background: The Cerrado ? an edaphic type of savannah ? comprises the second largest biome of the Brazilian territory and is the main area for grain production in the country, but information about the impact of land conversion to agriculture on microbial diversity is still scarce. We used a shotgun metagenomic approach to compare undisturbed (native) soil and soils cropped for 23 years with soybean/maize under conservation tillage ? ?no-till? (NT) ? and conventional tillage (CT) systems in the Cerrado biome. Results: Soil management and fertilizer inputs with the introduction of agriculture improved chemical properties, but decreased soil macroporosity and microbial biomass of carbon and nitrogen. Principal coordinates analyses confirmed different taxonomic and functional profiles for each treatment. There was predominance of the Bacteria domain, especially the phylum Proteobacteria, with higher numbers of sequences in the NT and CT treatments; Archaea and Viruses also had lower numbers of sequences in the undisturbed soil. Within the Alphaproteobacteria, there was dominance of Rhizobiales and of the genus Bradyrhizobium in the NT and CT systems, attributed to massive inoculation of soybean, and also of Burkholderiales. In contrast, Rhizobium, Azospirillum, Xanthomonas, Pseudomonas and Acidobacterium predominated in the native Cerrado. More Eukaryota, especially of the phylum Ascomycota were detected in the NT. The functional analysis revealed lower numbers of seq... Mostrar Tudo |
|
Palavras-Chave: |
Biodiversidade funcional; Metagenoma shotgun; Microbioma do solo; Seuqenciamento shotgun. |
|
Thesagro: |
Cerrado; Manejo do Solo; Microbiologia do Solo; Plantio Direto; Solo. |
|
Thesaurus NAL: |
Microbiome. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra
S Ciências Biológicas |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/155220/1/Souza-BMC.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/154849/1/Souza-et-al-2016-Shifts-in-diversity.pdf
|
|
Marc: |
LEADER 03156naa a2200325 a 4500
001 2063376
005 2017-07-26
008 2016 bl uuuu u00u1 u #d
100 1 $aSOUZA, R. C.
245 $aShifts in taxonomic and functional microbial diversity with agriculture$bHow fragile is the Brazilian Cerrado?$h[electronic resource]
260 $c2016
520 $aAbstract: Background: The Cerrado ? an edaphic type of savannah ? comprises the second largest biome of the Brazilian territory and is the main area for grain production in the country, but information about the impact of land conversion to agriculture on microbial diversity is still scarce. We used a shotgun metagenomic approach to compare undisturbed (native) soil and soils cropped for 23 years with soybean/maize under conservation tillage ? ?no-till? (NT) ? and conventional tillage (CT) systems in the Cerrado biome. Results: Soil management and fertilizer inputs with the introduction of agriculture improved chemical properties, but decreased soil macroporosity and microbial biomass of carbon and nitrogen. Principal coordinates analyses confirmed different taxonomic and functional profiles for each treatment. There was predominance of the Bacteria domain, especially the phylum Proteobacteria, with higher numbers of sequences in the NT and CT treatments; Archaea and Viruses also had lower numbers of sequences in the undisturbed soil. Within the Alphaproteobacteria, there was dominance of Rhizobiales and of the genus Bradyrhizobium in the NT and CT systems, attributed to massive inoculation of soybean, and also of Burkholderiales. In contrast, Rhizobium, Azospirillum, Xanthomonas, Pseudomonas and Acidobacterium predominated in the native Cerrado. More Eukaryota, especially of the phylum Ascomycota were detected in the NT. The functional analysis revealed lower numbers of sequences in the five dominant categories for the CT system, whereas the undisturbed Cerrado presented higher abundance. Conclusion: High impact of agriculture in taxonomic and functional microbial diversity in the biome Cerrado was confirmed. Functional diversity was not necessarily associated with taxonomic diversity, as the less conservationist treatment (CT) presented increased taxonomic sequences and reduced functional profiles, indicating a strategy to try to maintain soil functioning by favoring taxa that are probably not the most efficient for some functions. Our results highlight that underneath the rustic appearance of the Cerrado vegetation there is a fragile soil microbial community.
650 $aMicrobiome
650 $aCerrado
650 $aManejo do Solo
650 $aMicrobiologia do Solo
650 $aPlantio Direto
650 $aSolo
653 $aBiodiversidade funcional
653 $aMetagenoma shotgun
653 $aMicrobioma do solo
653 $aSeuqenciamento shotgun
700 1 $aMENDES, I. C.
700 1 $aREIS-JUNIOR, F. B.
700 1 $aCARVALHO, F. M.
700 1 $aNOGUEIRA, M. A.
700 1 $aVASCONCELOS, A. T. R.
700 1 $aVICENTE, V. A.
700 1 $aHUNGRIA, M.
773 $tBMC Microbiology, [S. l.]$gv. 16, n. 42, 2016. 15 p.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Soja (CNPSO) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
