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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
11/12/2014 |
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Data da última atualização: |
05/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ZANGARO, W.; ALVES, R. de A.; SOUZA, P. B. de; ROSTIROLA, L. V.; LESCANO, L. E. A. M.; RONDINA, A. B. L.; NOGUEIRA, M. A. |
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Afiliação: |
WALDEMAR ZANGARO, UEL; RICARDO DE ALMEIDA ALVES, UEL; PRISCILA BOCHI DE SOUZA, UEL; LEILA VERGAL ROSTIROLA, UEL; LUIZ EDUARDO AZEVEDO MARQUES LESCANO, UEL; ARTUR BERBEL LÍRIO RONDINA, UEL; MARCO ANTONIO NOGUEIRA, CNPSO. |
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Título: |
Succession and environmental variation infuence soil exploration potential by fne roots and mycorrhizal fungi in an Atlantic ecosystem in southern Brazil. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Journal of Tropical Ecology, Cambridge, v. 30, n. 3, p. 237-248, 2014. |
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ISSN: |
0266-4674 |
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DOI: |
10.1017/S0266467414000078 |
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Idioma: |
Inglês |
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Conteúdo: |
Fast-growing plant species are plentiful at the early stages of succession and possess roots with greater capacity for soil exploration than slow-growing plant species of late stages. Thus, the dynamics of fine-root production, morphological traits and arbuscular mycorrhizal fungal (AMF) infection intensity were assessed monthly over 1 y in the grassland, scrub, secondary and mature forests of the Atlantic Forest ecosystem, amounting to 13 consecutive samplings. Fine roots were sampled in three 100 × 100-m plots at each study site. Each plot was subdivided in five 20 × 100-m subplots and 15 soil samples were randomly taken from a depth of 0?5 cm in soil within each plot. The average of the fine-root dry mass increased from 1.39 mg cm?3 soil in the grassland to 3.37 mg cm?3 in the secondary forest; fine-root tip diameter varied from 146 ?m in the grassland to 303 ?m in the mature forest; tissue density from 0.24 g cm?3 root in the grassland to 0.30 g cm?3 in the mature forest and fine-root length was 4.52 cm cm?3 soil in the grassland and 6.48 cm cm?3 soil in the secondary forest. On the other hand, fine-root specific length decreased from 43.9 m g?1 root to 18.3 m g?1 root in the mature forest; incidence of root hairs was 67% in the grassland and 30% in the mature forest; the length of root hairs was 215 ?m in the grassland and 112 ?m in the mature forest; and the intensity of AMF infection decreased from 66% in the grassland to 17% in the mature forest. In addition to AMF infection, the environmental variation also affected dry mass production and morphological traits of fine roots. During the cool season, fine-root dry mass, fine-root length, incidence and length of root hairs and intensity of AMF infection decreased compared with the warm season. We verified that the potential for soil exploration, that expresses the capacity for nutrient acquisition via fine roots and AMF infection intensity, decreased during the cool season and with the advance of the successional groups. These results indicate that fine-root traits and intensity of AMF infection are influenced by the intrinsic nutrient requirements of the plant species in each ecological group. MenosFast-growing plant species are plentiful at the early stages of succession and possess roots with greater capacity for soil exploration than slow-growing plant species of late stages. Thus, the dynamics of fine-root production, morphological traits and arbuscular mycorrhizal fungal (AMF) infection intensity were assessed monthly over 1 y in the grassland, scrub, secondary and mature forests of the Atlantic Forest ecosystem, amounting to 13 consecutive samplings. Fine roots were sampled in three 100 × 100-m plots at each study site. Each plot was subdivided in five 20 × 100-m subplots and 15 soil samples were randomly taken from a depth of 0?5 cm in soil within each plot. The average of the fine-root dry mass increased from 1.39 mg cm?3 soil in the grassland to 3.37 mg cm?3 in the secondary forest; fine-root tip diameter varied from 146 ?m in the grassland to 303 ?m in the mature forest; tissue density from 0.24 g cm?3 root in the grassland to 0.30 g cm?3 in the mature forest and fine-root length was 4.52 cm cm?3 soil in the grassland and 6.48 cm cm?3 soil in the secondary forest. On the other hand, fine-root specific length decreased from 43.9 m g?1 root to 18.3 m g?1 root in the mature forest; incidence of root hairs was 67% in the grassland and 30% in the mature forest; the length of root hairs was 215 ?m in the grassland and 112 ?m in the mature forest; and the intensity of AMF infection decreased from 66% in the grassland to 17% in the mature forest. In addition to AMF i... Mostrar Tudo |
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Thesagro: |
Solo. |
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Categoria do assunto: |
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Marc: |
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024 7 $a10.1017/S0266467414000078$2DOI
100 1 $aZANGARO, W.
245 $aSuccession and environmental variation infuence soil exploration potential by fne roots and mycorrhizal fungi in an Atlantic ecosystem in southern Brazil.$h[electronic resource]
260 $c2014
520 $aFast-growing plant species are plentiful at the early stages of succession and possess roots with greater capacity for soil exploration than slow-growing plant species of late stages. Thus, the dynamics of fine-root production, morphological traits and arbuscular mycorrhizal fungal (AMF) infection intensity were assessed monthly over 1 y in the grassland, scrub, secondary and mature forests of the Atlantic Forest ecosystem, amounting to 13 consecutive samplings. Fine roots were sampled in three 100 × 100-m plots at each study site. Each plot was subdivided in five 20 × 100-m subplots and 15 soil samples were randomly taken from a depth of 0?5 cm in soil within each plot. The average of the fine-root dry mass increased from 1.39 mg cm?3 soil in the grassland to 3.37 mg cm?3 in the secondary forest; fine-root tip diameter varied from 146 ?m in the grassland to 303 ?m in the mature forest; tissue density from 0.24 g cm?3 root in the grassland to 0.30 g cm?3 in the mature forest and fine-root length was 4.52 cm cm?3 soil in the grassland and 6.48 cm cm?3 soil in the secondary forest. On the other hand, fine-root specific length decreased from 43.9 m g?1 root to 18.3 m g?1 root in the mature forest; incidence of root hairs was 67% in the grassland and 30% in the mature forest; the length of root hairs was 215 ?m in the grassland and 112 ?m in the mature forest; and the intensity of AMF infection decreased from 66% in the grassland to 17% in the mature forest. In addition to AMF infection, the environmental variation also affected dry mass production and morphological traits of fine roots. During the cool season, fine-root dry mass, fine-root length, incidence and length of root hairs and intensity of AMF infection decreased compared with the warm season. We verified that the potential for soil exploration, that expresses the capacity for nutrient acquisition via fine roots and AMF infection intensity, decreased during the cool season and with the advance of the successional groups. These results indicate that fine-root traits and intensity of AMF infection are influenced by the intrinsic nutrient requirements of the plant species in each ecological group.
650 $aSolo
700 1 $aALVES, R. de A.
700 1 $aSOUZA, P. B. de
700 1 $aROSTIROLA, L. V.
700 1 $aLESCANO, L. E. A. M.
700 1 $aRONDINA, A. B. L.
700 1 $aNOGUEIRA, M. A.
773 $tJournal of Tropical Ecology, Cambridge$gv. 30, n. 3, p. 237-248, 2014.
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Registro original: |
Embrapa Soja (CNPSO) |
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| Registros recuperados : 8 | |
| 1. |  | FREITAS, A. C. R. de; ALMEIDA, M. A.; KATO, O. R.; GEHRING, C. Manejo Ecológico de Capoeiras e Produção de Alimentos por Agricultores Familiares no Bioma Amazônia do Estado do Maranhão. Revista Brasileira de Agroecologia, v. 4, n. 2, p. 2144-2148, nov. 2009. Edição dos anais do 6º Congresso Brasileiro de Agroecologia; 2º Congresso Latinoamericano de Agroecologia, Curitiba, nov. 2009.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Amazônia Oriental; Embrapa Meio-Norte. |
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| 2. | | FREITAS, A. C. R. de; MUNIZ, L. C.; MANTEGAZZA, A.; MARTORANO, L. G.; COSTA, F. S. N2O fluxes evaluation in pasture management system under different densities of babassu palms. In: INTERNATIONAL SYMPOSIUM ON GREENHOUSE GASES IN AGRICULTURE, 2., 2016, Campo Grande, MS. Proceedings... Brasília, DF: Embrapa, 2016. p. 14-17. (Embrapa Gado de Corte. Documentos, 216). Coordenador Roberto Giolo de Almeida. II SIGEE.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 3. | | FREITAS, A. C. R. de; VILAR, R. R.; CAHETÉ, F. L. S.; PIRES, E. C. S.; RODRIGUES, W. L. C. Relato da experiência de uma pesquisa socioeconômica sobre agricultura "sem queima" na comunidade Cumaru, município de Igarapé-Açu-PA. In: SIMPÓSIO LATINO-AMERICANO SOBRE INVESTIGAÇÃO E EXTENSÃO EM SISTEMAS AGROPECUÁRIOS - IESA, 5.; ENCONTRO DA SOCIEDADE BRASILEIRA DE SISTEMAS DE PRODUÇÃO - SBSP, 5., 2002, Florianópolis. Programação e caderno de resumos. Florianópolis: Epagri, 2002. p. 359.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 5. | | FREITAS, A. C. R. de; KATO, O. R.; CRUZ, J. C.; PEREIRA FILHO, I. A.; OLIVEIRA, A. C. de; GUIMARAES, L. J. M. Avaliação do comportamento de cultivares de milho sob capoeira triturada no bioma amazônia no Estado do Maranhão. In: CONGRESSO DA SOCIEDADE BRASILEIRA DE SISTEMAS DE PRODUÇÃO, 8., 2010, São Luís. Agricultura familiar: crise alimentar e mudanças climáticas globais; anais. São Luís: UEMA: Embrapa, 2010. 8 p. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental; Embrapa Meio-Norte; Embrapa Milho e Sorgo. |
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| 6. | | FREITAS, A. C. R. de; COSTA, F. de S.; GOMES, E. G.; SOUZA, G. da S. e; SANTOS, M. A. S. dos; SENA, A. L. dos S.; FERNANDES, P. C. C.; BACA, J. F. M.; KLEPKER, D. Carbon neutralization potential of beef cattle system in Cerrado biome of Maranhao, Brazil. In: GREENHOUSE GAS AND ANIMAL AGRICULTURE CONFERENCE, 7., 2019, Iguassu Falls. Proceedings... São Carlos: Embrapa Pecuária Sudeste, 2019. p. 166. (Embrapa Pecuária Sudeste. Documentos, 135). Editores: Alexandre Bernd, Luiz Gustavo Pereira Ribeiro, Adibe Luis Abdalla.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Acre; Embrapa Amazônia Oriental; Embrapa Maranhão; Embrapa Solos. |
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| 7. | | CRAVO, M. da S.; SOUZA, B. D. L. de; CUNHA, F. D. R.; CAVALCANTE, E. da S.; ALVES, J. M. A.; MARINHO, J. T. de S.; VIEIRA JUNIOR, J. R.; GONCALVES, J. R. P.; FREITAS, A. C. R. de; TOMAZETTI, M. A. Sistemas de cultivo. In: ZILLI, J. E.; VILARINHO, A. A.; ALVES, J. M. A. (Ed.). A cultura do feijão-caupi na Amazônia brasileira. Boa Vista, RR: Embrapa Roraima, 2009. cap. 2, p. 59-104.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Acre; Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental; Embrapa Meio-Norte; Embrapa Rondônia. |
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| 8. | | KATO, O. R.; FREITAS, A. C. R. de; FERREIRA, J. H.; LEMOS, W. P.; GONÇALVES, R. C.; RODRIGUES FILHO, J. A.; AZEVEDO, C. M. B. C. de; VASCONCELOS, M. A.; MOURÃO, M.; MATOS, L. M. S. de; GATO, R. F.; SHIMIZU, M.; ROFFE, A. Recuperação de área degradada através do preparo de área sem queima e sistemas agroflorestais. In: CONFERÊNCIA DO SUBPROGRAMA DE CIÊNCIA E TECNOLOGIA - SPC&T FASE II/PPG7, 2008, Belém, PA. Anais... Brasília, DF: CNPq, 2009. p. 494-499. Disponível também em CD-ROM (CD 00173).| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Acre; Embrapa Amazônia Oriental. |
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| Registros recuperados : 8 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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