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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Florestas. |
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Data corrente: |
17/04/1991 |
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Data da última atualização: |
27/06/1995 |
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Autoria: |
HEGGO, A.; ANGLE, J. S.; CHANEY, R. L. |
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Título: |
Effects of vesicular-arbuscular mycorrhizal fungi on heavy metal uptake by soybeans. |
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Ano de publicação: |
1990 |
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Fonte/Imprenta: |
Soil Biol. Biochem., v. 22, n. 6, p. 865-869, 1990. |
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Idioma: |
Inglês
Português |
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Conteúdo: |
The uptake of heavy metals by soybeans may be affected by the colonization of roots with vesicular-arbuscular mycorrhixal @‘AM) fungi. Soils with various heavy metal contents were collected from areas in close proximity to a Zn smelter in operation for nearly 100 yr. All soils were placed into pots and steam sterilixed. One treatment was inoculated with mixed VAM fungi (600 spores per pot) and soil bacteria. The second treatment was inoculated with soil bacteria (minus VAM fungi) and the third treatment remained sterile. Soybeans (Glycine max L. Merr. “Essex”) were sown into each soil. After 6 weeks of growth, the plants were harvested and the dry weight and the content of N, P, Zn. Cd, Cu. Mn and Fe were determined in plant leaves. The amount of VAM fungal colonization, nitrogenase activity and number and weight of nodules were also determined on plant roots. Results indicate that inoculation with soil bacteria and VAM fungi increased plant dry weight and foliar P and N contents. Inoculation with VAM fungi reduced Zn, Cd and Mn concentrations in plant leaves grown in soil with high concentrations of these metals. VAM fungi enhanced foliar concentrations of these heavy metals when the plants were grown in soils with low heavy metal concentrations. The colonization of roots by VAM fungi was reduced at the highest soil metal concentrations. These results indicate that the effect of VAM fungi on heavy metal uptake is dependent upon the initial soil metal concentration. |
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Palavras-Chave: |
FBN; Micorriza/va. |
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Thesagro: |
Metal Pesado; Micorriza; Micorriza Vesicular Arbuscular; Soja. |
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Categoria do assunto: |
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P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02105naa a2200217 a 4500
001 1612817
005 1995-06-27
008 1990 bl uuuu u00u1 u #d
100 1 $aHEGGO, A.
245 $aEffects of vesicular-arbuscular mycorrhizal fungi on heavy metal uptake by soybeans.$h[electronic resource]
260 $c1990
520 $aThe uptake of heavy metals by soybeans may be affected by the colonization of roots with vesicular-arbuscular mycorrhixal @‘AM) fungi. Soils with various heavy metal contents were collected from areas in close proximity to a Zn smelter in operation for nearly 100 yr. All soils were placed into pots and steam sterilixed. One treatment was inoculated with mixed VAM fungi (600 spores per pot) and soil bacteria. The second treatment was inoculated with soil bacteria (minus VAM fungi) and the third treatment remained sterile. Soybeans (Glycine max L. Merr. “Essex”) were sown into each soil. After 6 weeks of growth, the plants were harvested and the dry weight and the content of N, P, Zn. Cd, Cu. Mn and Fe were determined in plant leaves. The amount of VAM fungal colonization, nitrogenase activity and number and weight of nodules were also determined on plant roots. Results indicate that inoculation with soil bacteria and VAM fungi increased plant dry weight and foliar P and N contents. Inoculation with VAM fungi reduced Zn, Cd and Mn concentrations in plant leaves grown in soil with high concentrations of these metals. VAM fungi enhanced foliar concentrations of these heavy metals when the plants were grown in soils with low heavy metal concentrations. The colonization of roots by VAM fungi was reduced at the highest soil metal concentrations. These results indicate that the effect of VAM fungi on heavy metal uptake is dependent upon the initial soil metal concentration.
650 $aMetal Pesado
650 $aMicorriza
650 $aMicorriza Vesicular Arbuscular
650 $aSoja
653 $aFBN
653 $aMicorriza/va
700 1 $aANGLE, J. S.
700 1 $aCHANEY, R. L.
773 $tSoil Biol. Biochem.$gv. 22, n. 6, p. 865-869, 1990.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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| 1. |  | OBANDO, M.; ANTONELLI, C.; CASANAVE, S.; MAGUIRE, V.; TORRES, D.; PÉREZ, G.; BAILLERES, M.; FLORENCIA, D.; CREUS, C.; VIDELA, C.; PUENTE, M.; ZILLI, J. E.; ALVES, B. J. R.; RUIZ, O.; EULOGIO, B.; CASSÁN, F. Evaluation of nitrous oxide emission by soybean inoculated with Bradyrhizobium strains commonly used as inoculants in South America. Plant and Soil, v. 472, p. 311?328. 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Agrobiologia. |
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