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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
03/12/2012 |
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Data da última atualização: |
20/08/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ZANGARO, W.; ANSANELO, A. P.; LESCANO, L. E. A. M.; ALVES, R. de A.; RONDINA, A. B. L.; NOGUEIRA, M. A. |
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Afiliação: |
WALDEMAR ZANGARO., Universidade Estadual de Londrina, Centro de Ciências Biológicas.; ADRIELLY PEREIRA ANSANELO., Universidade Estadual de Londrina, Centro de Ciências Biológicas.; LUIS EDUARDO AZEVEDO MARQUES LESCANO., Universidade Estadual de Londrina, Centro de Ciências Biológicas.; RICARDO DE ALMEIDA ALVES., Universidade Estadual de Londrina, Centro de Ciênicas Biológicas.; ARTUR BERBEL LIRIO RONDINA., Universidade Estadual de Londrina, Centro de Ciênicas Biológicas.; MARCO ANTONIO NOGUEIRA, CNPSO. |
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Título: |
Infection intensity, spore density and inoculum potential of arbuscular mycorrhizal fungi decrease during secondary succession in tropical Brazilian ecosystems. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Journal of Tropical Ecology, Cambridge, v. 28, n. 5, 2012, p. 453-462, Sept. 2012. |
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DOI: |
DOI: 10.1017/S0266467412000399 |
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Idioma: |
Inglês |
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Conteúdo: |
Little is known about the relationship involving arbuscular mycorrhizal (AM) fungi and functional groups of plants that characterize different phases of tropical succession.We appraised the AM infection intensity of root cortex and spore density in the soil in sites over tropical successional gradients (grassland, secondary forest and mature forest) for several years in Araucaria,Atlantic and Pantanal ecosystems in Brazil. The intensity ofAMinfection decreasedwith advancing successional stages in all ecosystems and it was around 60–80% in early stages of succession, 37–56% in secondary forests and 19–29% in mature forests. Similarly, the AM spore number also decreased with advancing succession and was the highest in early stages (73–123 g?1), intermediate in secondary forests (32–54 g?1) and lowest in the mature forests (10–23 g?1). To verify whether such reductions influenced the potential of AM inoculum in soil, seedlings of Heliocarpus popayanensis (Malvaceae) were grown as test plants in soils obtained from five grasslands, five young secondary forests, and five mature forests in the Atlantic ecosystem. The soil inocula from the grasslands and secondary forests were 7.6 and 5.7 times more effective in stimulating seedling growth than inocula from the mature forests, respectively. Our results show that plant species in grasslands and young secondary forests stimulate the multiplication of AM fungi, leading to a higher potential of the AM inoculum. In later-successional stages, plant investment in AM fungi decreases and the potential of the AM inoculum is also reduced. MenosLittle is known about the relationship involving arbuscular mycorrhizal (AM) fungi and functional groups of plants that characterize different phases of tropical succession.We appraised the AM infection intensity of root cortex and spore density in the soil in sites over tropical successional gradients (grassland, secondary forest and mature forest) for several years in Araucaria,Atlantic and Pantanal ecosystems in Brazil. The intensity ofAMinfection decreasedwith advancing successional stages in all ecosystems and it was around 60–80% in early stages of succession, 37–56% in secondary forests and 19–29% in mature forests. Similarly, the AM spore number also decreased with advancing succession and was the highest in early stages (73–123 g?1), intermediate in secondary forests (32–54 g?1) and lowest in the mature forests (10–23 g?1). To verify whether such reductions influenced the potential of AM inoculum in soil, seedlings of Heliocarpus popayanensis (Malvaceae) were grown as test plants in soils obtained from five grasslands, five young secondary forests, and five mature forests in the Atlantic ecosystem. The soil inocula from the grasslands and secondary forests were 7.6 and 5.7 times more effective in stimulating seedling growth than inocula from the mature forests, respectively. Our results show that plant species in grasslands and young secondary forests stimulate the multiplication of AM fungi, leading to a higher potential of the AM inoculum. In later-successional st... Mostrar Tudo |
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Thesagro: |
Fertilidade do solo. |
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Thesaurus Nal: |
Soil fertility. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/71214/1/2012-JTE-v28-p-453-462-Zangaro.pdf
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Marc: |
LEADER 02383naa a2200217 a 4500
001 1940931
005 2013-08-20
008 2012 bl uuuu u00u1 u #d
024 7 $aDOI: 10.1017/S0266467412000399$2DOI
100 1 $aZANGARO, W.
245 $aInfection intensity, spore density and inoculum potential of arbuscular mycorrhizal fungi decrease during secondary succession in tropical Brazilian ecosystems.$h[electronic resource]
260 $c2012
520 $aLittle is known about the relationship involving arbuscular mycorrhizal (AM) fungi and functional groups of plants that characterize different phases of tropical succession.We appraised the AM infection intensity of root cortex and spore density in the soil in sites over tropical successional gradients (grassland, secondary forest and mature forest) for several years in Araucaria,Atlantic and Pantanal ecosystems in Brazil. The intensity ofAMinfection decreasedwith advancing successional stages in all ecosystems and it was around 60–80% in early stages of succession, 37–56% in secondary forests and 19–29% in mature forests. Similarly, the AM spore number also decreased with advancing succession and was the highest in early stages (73–123 g?1), intermediate in secondary forests (32–54 g?1) and lowest in the mature forests (10–23 g?1). To verify whether such reductions influenced the potential of AM inoculum in soil, seedlings of Heliocarpus popayanensis (Malvaceae) were grown as test plants in soils obtained from five grasslands, five young secondary forests, and five mature forests in the Atlantic ecosystem. The soil inocula from the grasslands and secondary forests were 7.6 and 5.7 times more effective in stimulating seedling growth than inocula from the mature forests, respectively. Our results show that plant species in grasslands and young secondary forests stimulate the multiplication of AM fungi, leading to a higher potential of the AM inoculum. In later-successional stages, plant investment in AM fungi decreases and the potential of the AM inoculum is also reduced.
650 $aSoil fertility
650 $aFertilidade do solo
700 1 $aANSANELO, A. P.
700 1 $aLESCANO, L. E. A. M.
700 1 $aALVES, R. de A.
700 1 $aRONDINA, A. B. L.
700 1 $aNOGUEIRA, M. A.
773 $tJournal of Tropical Ecology, Cambridge$gv. 28, n. 5, 2012, p. 453-462, Sept. 2012.
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Registro original: |
Embrapa Soja (CNPSO) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
11/07/2016 |
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Data da última atualização: |
10/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
LAVELLE, P.; SPAIN, A.; BLOUIN, M.; BROWN, G. G.; DECAENS, T.; GRIMALDO, M.; JIMÉNEZ, J. J.; McKEY, D.; MATHIEU, J.; VELASQUEZ, E.; ZANGERLÉ, A. |
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Afiliação: |
Patrick Lavelle, IEES, Université; Alister Spain, The University of Western Australia; Manuel Blouin, Université Paris Est Créteil; GEORGE GARDNER BROWN, CNPF; Thibaud Decaëns, CEFE-CNRS; Michel Grimaldi, Institut de Recherche pour le Développement; Juan José Jiménez, Instituto Pirenaico de Ecologia; Doyle McKey, Universidad Nacional de Colombia; Jérôme Mathieu, IEES, Université; Elena Velasquez, Universidad Nacional de Colombia; Anne Zangerlé, Technische Universität Braunschweig. |
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Título: |
Ecosystem engineers in a self-organized soil: a review of concepts and future research questions. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Soil Science, v. 181, n. 3/4, p. 91-109, Mar./Apr. 2016. |
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DOI: |
10.1097/SS.0000000000000155 |
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Idioma: |
Inglês |
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Conteúdo: |
Soils are self-organized ecological systems within which organisms interact within a nested suite of discrete scales. Microorganisms form communities and physical structures at the smallest scale (microns), followed by the community of their predators organized in microfoodwebs (tens of microns), the functional domains built by ecosystem engineers (centimeters to meters), ecosystems, and landscapes. Ecosystemengineers, principally plant roots, earthworms, termites, and ants, play key roles in creating habitats for other organisms and controlling their activities through physical and biochemical processes. The biogenic, organic, and organomineral structures that they produce accumulate in the soil space to form threedimensional mosaics of functional domains, inhabited by specific communities of smaller organisms (microfauna and mesofauna, microorganisms) that drive soil processes through specific pathways. Ecosystem engineers also produce signaling and energy-rich molecules that act as ecological mediators of biological engineering processes. Energy-rich ecological mediators may selectively activate microbial populations and trigger priming effects, resulting in the degradation, synthesis, and sequestration of specific organic substrates. Signalingmolecules informsoil organisms of their producers? respective presences and change physiologies by modifying gene expression and through eliciting hormonal responses. Protection of plants against pests and diseases is largely achieved via these processes. At the highest scales, the delivery of ecosystem services emerges through the functioning of self-organized systems nested within each other. The integrity of the different subsystems at each scale and the quality of their interconnections are a precondition for an optimum and sustainable delivery of ecosystem services. Lastly, we present seven general research questions whose resolution will provide a firmer base for the proposed conceptual framework while offering new insights for sustainable use of the soil resource. MenosSoils are self-organized ecological systems within which organisms interact within a nested suite of discrete scales. Microorganisms form communities and physical structures at the smallest scale (microns), followed by the community of their predators organized in microfoodwebs (tens of microns), the functional domains built by ecosystem engineers (centimeters to meters), ecosystems, and landscapes. Ecosystemengineers, principally plant roots, earthworms, termites, and ants, play key roles in creating habitats for other organisms and controlling their activities through physical and biochemical processes. The biogenic, organic, and organomineral structures that they produce accumulate in the soil space to form threedimensional mosaics of functional domains, inhabited by specific communities of smaller organisms (microfauna and mesofauna, microorganisms) that drive soil processes through specific pathways. Ecosystem engineers also produce signaling and energy-rich molecules that act as ecological mediators of biological engineering processes. Energy-rich ecological mediators may selectively activate microbial populations and trigger priming effects, resulting in the degradation, synthesis, and sequestration of specific organic substrates. Signalingmolecules informsoil organisms of their producers? respective presences and change physiologies by modifying gene expression and through eliciting hormonal responses. Protection of plants against pests and diseases is largely achiev... Mostrar Tudo |
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Palavras-Chave: |
Ecological mediators; Funcionamento do solo; Mediadores biológicos; Moléculas de sinalização; Papéis da biota do solo; Roles of the soil biota; Self-organized systems; Signaling molecules; Sistemas auto-organizados; Soil functioning. |
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Thesagro: |
Ecossistema; Estrutura do solo. |
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Thesaurus NAL: |
Ecosystem engineering; Soil structure. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 03300naa a2200421 a 4500
001 2048556
005 2017-07-10
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1097/SS.0000000000000155$2DOI
100 1 $aLAVELLE, P.
245 $aEcosystem engineers in a self-organized soil$ba review of concepts and future research questions.$h[electronic resource]
260 $c2016
520 $aSoils are self-organized ecological systems within which organisms interact within a nested suite of discrete scales. Microorganisms form communities and physical structures at the smallest scale (microns), followed by the community of their predators organized in microfoodwebs (tens of microns), the functional domains built by ecosystem engineers (centimeters to meters), ecosystems, and landscapes. Ecosystemengineers, principally plant roots, earthworms, termites, and ants, play key roles in creating habitats for other organisms and controlling their activities through physical and biochemical processes. The biogenic, organic, and organomineral structures that they produce accumulate in the soil space to form threedimensional mosaics of functional domains, inhabited by specific communities of smaller organisms (microfauna and mesofauna, microorganisms) that drive soil processes through specific pathways. Ecosystem engineers also produce signaling and energy-rich molecules that act as ecological mediators of biological engineering processes. Energy-rich ecological mediators may selectively activate microbial populations and trigger priming effects, resulting in the degradation, synthesis, and sequestration of specific organic substrates. Signalingmolecules informsoil organisms of their producers? respective presences and change physiologies by modifying gene expression and through eliciting hormonal responses. Protection of plants against pests and diseases is largely achieved via these processes. At the highest scales, the delivery of ecosystem services emerges through the functioning of self-organized systems nested within each other. The integrity of the different subsystems at each scale and the quality of their interconnections are a precondition for an optimum and sustainable delivery of ecosystem services. Lastly, we present seven general research questions whose resolution will provide a firmer base for the proposed conceptual framework while offering new insights for sustainable use of the soil resource.
650 $aEcosystem engineering
650 $aSoil structure
650 $aEcossistema
650 $aEstrutura do solo
653 $aEcological mediators
653 $aFuncionamento do solo
653 $aMediadores biológicos
653 $aMoléculas de sinalização
653 $aPapéis da biota do solo
653 $aRoles of the soil biota
653 $aSelf-organized systems
653 $aSignaling molecules
653 $aSistemas auto-organizados
653 $aSoil functioning
700 1 $aSPAIN, A.
700 1 $aBLOUIN, M.
700 1 $aBROWN, G. G.
700 1 $aDECAENS, T.
700 1 $aGRIMALDO, M.
700 1 $aJIMÉNEZ, J. J.
700 1 $aMcKEY, D.
700 1 $aMATHIEU, J.
700 1 $aVELASQUEZ, E.
700 1 $aZANGERLÉ, A.
773 $tSoil Science$gv. 181, n. 3/4, p. 91-109, Mar./Apr. 2016.
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