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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
14/03/2012 |
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Data da última atualização: |
26/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ZANGARO, W.; ALVES, R. A.; LESCANO, L. E.; ANSANELO, A. P.; NOGUEIRA, M. A. |
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Afiliação: |
WALDEMAR ZANGARO, UEL; RICARDO A. ALVES, UEL; LUIZ E. LESCANO, UEL; ADRIELLY P. ANSANELO, UEL; MARCO ANTONIO NOGUEIRA, CNPSO. |
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Título: |
Investment in fine roots and arbuscular mycorrhizal fungi decrease during succession in three brazilian ecosystems. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Biotropica, Washington, DC, v. 44, n. 2, p. 141-150, Marc. 2012. |
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DOI: |
10.1111/j.1744-7429.2011.00781.x |
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Idioma: |
Inglês |
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Conteúdo: |
The functional groups of plants that characterize different phases of succession are expected to show differences in root distribution, fine?root traits and degrees of association with arbuscular mycorrhizal (AM) fungi. The relationship involving fine?root traits and AM fungi that regulate the nutrient acquisition potential among different plant functional groups are still not well understood. We assessed fine?root morphology, AM fungal variables and soil fertility in grassland, secondary forest and mature forest in Atlantic, Araucaria and Pantanal ecosystems in Brazil. Soil cores were collected at 0?10 and 10?20 cm depths. Fine roots were extracted from soil by sieving and root morphological traits and AM colonization were determined. The AM spores were extracted from soil and counted. In all ecosystems, soil fertility, fine?root mass and root diameter increased with the succession, while root length, specific root length, root?hair length, root?hair incidence, AM colonization and AM spore density decreased. These results suggest that plant species from early stages of tropical succession with inherent rapid growth invest in fine roots and maintain a high degree of AM colonization in order to increase the capacity for nutrient acquisition. Conversely, fine root morphological characteristics and low degree of AM colonization exhibited by plants of the later stages of succession lead toward a low nutrient uptake capacity that combine with their typical low growth rates. |
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Thesagro: |
Micorriza. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02121naa a2200193 a 4500
001 1918819
005 2017-07-26
008 2012 bl uuuu u00u1 u #d
024 7 $a10.1111/j.1744-7429.2011.00781.x$2DOI
100 1 $aZANGARO, W.
245 $aInvestment in fine roots and arbuscular mycorrhizal fungi decrease during succession in three brazilian ecosystems.$h[electronic resource]
260 $c2012
520 $aThe functional groups of plants that characterize different phases of succession are expected to show differences in root distribution, fine?root traits and degrees of association with arbuscular mycorrhizal (AM) fungi. The relationship involving fine?root traits and AM fungi that regulate the nutrient acquisition potential among different plant functional groups are still not well understood. We assessed fine?root morphology, AM fungal variables and soil fertility in grassland, secondary forest and mature forest in Atlantic, Araucaria and Pantanal ecosystems in Brazil. Soil cores were collected at 0?10 and 10?20 cm depths. Fine roots were extracted from soil by sieving and root morphological traits and AM colonization were determined. The AM spores were extracted from soil and counted. In all ecosystems, soil fertility, fine?root mass and root diameter increased with the succession, while root length, specific root length, root?hair length, root?hair incidence, AM colonization and AM spore density decreased. These results suggest that plant species from early stages of tropical succession with inherent rapid growth invest in fine roots and maintain a high degree of AM colonization in order to increase the capacity for nutrient acquisition. Conversely, fine root morphological characteristics and low degree of AM colonization exhibited by plants of the later stages of succession lead toward a low nutrient uptake capacity that combine with their typical low growth rates.
650 $aMicorriza
700 1 $aALVES, R. A.
700 1 $aLESCANO, L. E.
700 1 $aANSANELO, A. P.
700 1 $aNOGUEIRA, M. A.
773 $tBiotropica, Washington, DC$gv. 44, n. 2, p. 141-150, Marc. 2012.
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Registro original: |
Embrapa Soja (CNPSO) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
19/03/2009 |
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Data da última atualização: |
03/01/2013 |
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Tipo da produção científica: |
Documentos |
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Autoria: |
MODESTO JUNIOR, M. de S.; ALVES, R. N. B. |
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Afiliação: |
MOISES DE SOUZA MODESTO JUNIOR, CPATU; RAIMUNDO NONATO BRABO ALVES, CPATU. |
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Título: |
Transferência de tecnologias da Embrapa Amazônia Oriental e os impactos da adoção no agronegócio do Pará. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Belém, PA: Embrapa Amazônia Oriental, 2008. |
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Páginas: |
36 p. |
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Série: |
(Embrapa Amazônia Oriental. Documentos, 334). |
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Idioma: |
Português |
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Notas: |
Disponível também on-line. |
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Palavras-Chave: |
Brasil; Pará. |
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Thesagro: |
Agricultura; Cadeia Produtiva; Economia Agrícola; Inovação; Mudança Tecnológica. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/28278/1/Doc334.pdf
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Marc: |
LEADER 00745nam a2200241 a 4500
001 1410074
005 2013-01-03
008 2008 bl uuuu u0uu1 u #d
100 1 $aMODESTO JUNIOR, M. de S.
245 $aTransferência de tecnologias da Embrapa Amazônia Oriental e os impactos da adoção no agronegócio do Pará.
260 $aBelém, PA: Embrapa Amazônia Oriental$c2008
300 $a36 p.
490 $a(Embrapa Amazônia Oriental. Documentos, 334).
500 $aDisponível também on-line.
650 $aAmazonia
650 $aAgricultura
650 $aCadeia Produtiva
650 $aEconomia Agrícola
650 $aInovação
650 $aMudança Tecnológica
653 $aBrasil
653 $aPará
700 1 $aALVES, R. N. B.
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Embrapa Amazônia Oriental (CPATU) |
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