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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Tabuleiros Costeiros. |
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Data corrente: |
02/12/2014 |
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Data da última atualização: |
02/12/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LISBOA, F. J. G.; CHAER, G. M.; FERNANDES, M. F.; BERBARA, R. L. L.; MADARI, B. E. |
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Afiliação: |
GUILHERME MONTANDON CHAER, CNPAB; MARCELO FERREIRA FERNANDES, CPATC. |
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Título: |
The match between microbial community structure and soil properties is modulated by land use types and sample origin within an integrated agroecosystem. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Soil Biology & Biochemistry, Oxford, v. 78, p. 97-108, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
It is of global concern to adopt measures to mitigate land degradation caused by agricultural production systems. One of the strategies proposed is to replace degraded pastures with agrosilvopastoral systems which integrate three different land-use types: crop production, livestock pasture and forestry plantation (denoted iCLF). However, little is known about the differences between iCLF and other land use types in terms of soil microbial community structure. Distance matrices based on individual soil chemical properties and individual soil microbial variables were correlated by Procrustes analysis and these re-lationships yielded vectors of residuals depicting these correlations (matches). These vectors were used as univariate response variables in an ANOVA framework in order to investigate how the match sizes (the strength of correlation/covariance) between individual soil chemical properties and individual soil mi-crobial variables vary across land use types (levels: iCLF; degradated pasture; improved pasture; and a native cerrado fragment) and also across sample origin within iCLF (levels: soil samples under morein fluence of the exotic tree forest stand; soil samples under influence of the pasture; samples within the transition between the forest stand and the pasture). We were able to obtain insights into the fact that the land use distinction can be driven by more than just individual soil chemical and microbial variables. The integration of crop, livestock and forestry promoted a dominance of fungi in this low fertility and low pH environment. P availability and the composite variable exchangeable base cations (Caþ2, Mgþ2, Kþ) were the soil properties whose strengths of correlation (match sizes) with individual microbial variables were the most affected by land use type and sampling origin within iCLF. While the strength of the correlation between soil microbial structure variables and P availability was typically land use type dependent, the response of the microbial structure to exchangeable base cations was mainly affected by the sample origin within iCLF. Finally our results point towards the conclusion that increases in the heterogeneity of vegetation within integrated crop, pasture and forestry systems are an important driver of microbial community response to environmental changes, and may be one means by which to in-crease the sustainability of tropical agroecosystems. MenosIt is of global concern to adopt measures to mitigate land degradation caused by agricultural production systems. One of the strategies proposed is to replace degraded pastures with agrosilvopastoral systems which integrate three different land-use types: crop production, livestock pasture and forestry plantation (denoted iCLF). However, little is known about the differences between iCLF and other land use types in terms of soil microbial community structure. Distance matrices based on individual soil chemical properties and individual soil microbial variables were correlated by Procrustes analysis and these re-lationships yielded vectors of residuals depicting these correlations (matches). These vectors were used as univariate response variables in an ANOVA framework in order to investigate how the match sizes (the strength of correlation/covariance) between individual soil chemical properties and individual soil mi-crobial variables vary across land use types (levels: iCLF; degradated pasture; improved pasture; and a native cerrado fragment) and also across sample origin within iCLF (levels: soil samples under morein fluence of the exotic tree forest stand; soil samples under influence of the pasture; samples within the transition between the forest stand and the pasture). We were able to obtain insights into the fact that the land use distinction can be driven by more than just individual soil chemical and microbial variables. The integration of crop, livestock and forest... Mostrar Tudo |
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Palavras-Chave: |
Degradação. |
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Thesagro: |
Sistema de Produção; Solo. |
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Thesaurus Nal: |
degradation; soil. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/112859/1/Lisboa-et-al.-2014b.pdf
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Marc: |
LEADER 03132naa a2200229 a 4500
001 2001356
005 2014-12-02
008 2014 bl uuuu u00u1 u #d
100 1 $aLISBOA, F. J. G.
245 $aThe match between microbial community structure and soil properties is modulated by land use types and sample origin within an integrated agroecosystem.
260 $c2014
520 $aIt is of global concern to adopt measures to mitigate land degradation caused by agricultural production systems. One of the strategies proposed is to replace degraded pastures with agrosilvopastoral systems which integrate three different land-use types: crop production, livestock pasture and forestry plantation (denoted iCLF). However, little is known about the differences between iCLF and other land use types in terms of soil microbial community structure. Distance matrices based on individual soil chemical properties and individual soil microbial variables were correlated by Procrustes analysis and these re-lationships yielded vectors of residuals depicting these correlations (matches). These vectors were used as univariate response variables in an ANOVA framework in order to investigate how the match sizes (the strength of correlation/covariance) between individual soil chemical properties and individual soil mi-crobial variables vary across land use types (levels: iCLF; degradated pasture; improved pasture; and a native cerrado fragment) and also across sample origin within iCLF (levels: soil samples under morein fluence of the exotic tree forest stand; soil samples under influence of the pasture; samples within the transition between the forest stand and the pasture). We were able to obtain insights into the fact that the land use distinction can be driven by more than just individual soil chemical and microbial variables. The integration of crop, livestock and forestry promoted a dominance of fungi in this low fertility and low pH environment. P availability and the composite variable exchangeable base cations (Caþ2, Mgþ2, Kþ) were the soil properties whose strengths of correlation (match sizes) with individual microbial variables were the most affected by land use type and sampling origin within iCLF. While the strength of the correlation between soil microbial structure variables and P availability was typically land use type dependent, the response of the microbial structure to exchangeable base cations was mainly affected by the sample origin within iCLF. Finally our results point towards the conclusion that increases in the heterogeneity of vegetation within integrated crop, pasture and forestry systems are an important driver of microbial community response to environmental changes, and may be one means by which to in-crease the sustainability of tropical agroecosystems.
650 $adegradation
650 $asoil
650 $aSistema de Produção
650 $aSolo
653 $aDegradação
700 1 $aCHAER, G. M.
700 1 $aFERNANDES, M. F.
700 1 $aBERBARA, R. L. L.
700 1 $aMADARI, B. E.
773 $tSoil Biology & Biochemistry, Oxford$gv. 78, p. 97-108, 2014.
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Registro original: |
Embrapa Tabuleiros Costeiros (CPATC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Café. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
28/09/2020 |
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Data da última atualização: |
28/09/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
CRUZ, A. F.; SIVA, L. F.; SOUSA, T. V.; NICOLI, A.; PAULA JUNIOR, T. J. de; CAIXETA, E. T.; ZAMBOLIM, L. |
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Afiliação: |
ANDRE FREIRE CRUZ, EMPRESA DE PESQUISA AGROPECUÁRIA DE MINAS GERAIS; LUCAS FAGUNDES SILVA, UNIVERSIDADE FEDERAL DE VIÇOSA; TIAGO VIEIRA SOUSA, UNIVERSIDADE FEDERAL DE VIÇOSA; ALESSANDRO NICOLI, UNIVERSIDADE FEDERAL DE VIÇOSA; TRAZILBO JOSE DE PAULA JUNIOR, UNIVERSIDADE FEDERAL DE VIÇOSA; EVELINE TEIXEIRA CAIXETA MOURA, CNPCa; LAÉRCIO ZAMBOLIM, UNIVERSIDADE FEDERAL DE VIÇOSA. |
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Título: |
Molecular diversity in Fusarium oxysporum isolates from common bean fields in Brazil. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
European Journal of Plant Pathology, v. 152, n. 2, p. 343-354, 2018. |
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DOI: |
10.1007/s10658-018-1479-7 |
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Idioma: |
Inglês |
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Conteúdo: |
The common bean (Phaseolus vulgaris L.) is widely cultivated in Brazil and is known as a very important crop for families in this country. Fusarium wilt severely harms common beans and has become a big issue for this crop. In order to assist the breeding programs that target resistance to this disease, the evaluation of genetic diversity of the pathogen and its molecular characterization are crucial. Thus, the present goal was to identify Fusarium isolates obtained from several places in Brazil using molecular tools; select molecular markers for these isolates; and analyze their diversity. All of isolates were molecularly identified as Fusarium oxysporum f. sp. phaseoli (Fop). By using seven selected SSR markers, the results of diversity obtained by the dendrogram and the Bayesian analysis formed four groups where a large diversity of this fungus was found within each state. However, the groups were more homogenous according to the collection source and the pathogenicity test. More specifically, group 2 was composed of the most virulent strains and originated from Minas Gerais State ? UFV, and group 3 was mostly composed by isolates from Goias state. Group I was also more diverse in terms of location and virulence. The overall results indicated a positive correlation between Fusarium diversity and its virulence to common bean. Furthermore, the use of these markers was effective in molecular identification and in detecting polymorphism within F. oxysporum f. sp. phaseoli. |
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Palavras-Chave: |
Diversity; Molecular markers. |
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Thesagro: |
Fusarium; Phaseolus Vulgaris. |
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Thesaurus NAL: |
Genetic code. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02272naa a2200265 a 4500
001 2125146
005 2020-09-28
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1007/s10658-018-1479-7$2DOI
100 1 $aCRUZ, A. F.
245 $aMolecular diversity in Fusarium oxysporum isolates from common bean fields in Brazil.$h[electronic resource]
260 $c2018
520 $aThe common bean (Phaseolus vulgaris L.) is widely cultivated in Brazil and is known as a very important crop for families in this country. Fusarium wilt severely harms common beans and has become a big issue for this crop. In order to assist the breeding programs that target resistance to this disease, the evaluation of genetic diversity of the pathogen and its molecular characterization are crucial. Thus, the present goal was to identify Fusarium isolates obtained from several places in Brazil using molecular tools; select molecular markers for these isolates; and analyze their diversity. All of isolates were molecularly identified as Fusarium oxysporum f. sp. phaseoli (Fop). By using seven selected SSR markers, the results of diversity obtained by the dendrogram and the Bayesian analysis formed four groups where a large diversity of this fungus was found within each state. However, the groups were more homogenous according to the collection source and the pathogenicity test. More specifically, group 2 was composed of the most virulent strains and originated from Minas Gerais State ? UFV, and group 3 was mostly composed by isolates from Goias state. Group I was also more diverse in terms of location and virulence. The overall results indicated a positive correlation between Fusarium diversity and its virulence to common bean. Furthermore, the use of these markers was effective in molecular identification and in detecting polymorphism within F. oxysporum f. sp. phaseoli.
650 $aGenetic code
650 $aFusarium
650 $aPhaseolus Vulgaris
653 $aDiversity
653 $aMolecular markers
700 1 $aSIVA, L. F.
700 1 $aSOUSA, T. V.
700 1 $aNICOLI, A.
700 1 $aPAULA JUNIOR, T. J. de
700 1 $aCAIXETA, E. T.
700 1 $aZAMBOLIM, L.
773 $tEuropean Journal of Plant Pathology$gv. 152, n. 2, p. 343-354, 2018.
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