Rizosferas de árvores acumuladoras de fósforo na Amazonia Brasileira
Rhizosphere of tress that accumulate phosphorus in the Brazilian Amazon. Objective. With the purpose of knowing the strategiesof tolerance of two phosphorus-accumulating species (Neea macrophylla and Cecropia palmate) and a non-accumulating species(Casearia arborea) to phosphorus-deficient soils, we...
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Pontificia Universidad Javeriana
2011-08-01
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| Series: | Universitas Scientiarum |
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| Online Access: | http://revistas.javeriana.edu.co/index.php/scientarium/article/view/1643/1070 |
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| author | Patrícia Chaves de Oliveira Cláudio José Reis de Carvalho |
| author_facet | Patrícia Chaves de Oliveira Cláudio José Reis de Carvalho |
| author_sort | Patrícia Chaves de Oliveira |
| collection | DOAJ |
| description | Rhizosphere of tress that accumulate phosphorus in the Brazilian Amazon. Objective. With the purpose of knowing the strategiesof tolerance of two phosphorus-accumulating species (Neea macrophylla and Cecropia palmate) and a non-accumulating species(Casearia arborea) to phosphorus-deficient soils, we characterized the rhizosphere of these species using a multivariate analysis andcorrelation matrices in relation to the concentrations of organic phosphorus, available phosphorus, soil organic carbon, organic carbonfrom microbial biomass, acid phosphatase enzyme activity, and root infection by mycorrhizal fungi. Materials and methods. Theresearch was carried out in the Igarapé-Açú town, state of Pará, Brazil in secondary forests with five years of regeneration, where theparameters above mentioned were monitored. Results. Results did not reveal significant differences between the species depending onthe characteristics of the soil next to the rhizospheres, suggesting homogeneous conditions. The enzymatic activity was slightly higherin the species with less potential in accumulating P (Casearia arborea) suggesting that efficiency in P use is not determined by theenzymatic activity. Conclusions. Neea macrophylla presented a slightly higher number of mycorrhizal root infections in comparisonto the other species, indicating that this could be a tolerance strategy in those environments, while in Cecropia palmata and Caseariaarborea it seems that enzymatic activity is the strategy employed. |
| format | Article |
| id | doaj-art-6daa0f608ed143be987434c2ea687517 |
| institution | OA Journals |
| issn | 0122-7483 2027-1352 |
| language | English |
| publishDate | 2011-08-01 |
| publisher | Pontificia Universidad Javeriana |
| record_format | Article |
| series | Universitas Scientiarum |
| spelling | doaj-art-6daa0f608ed143be987434c2ea6875172025-08-20T02:06:12ZengPontificia Universidad JaverianaUniversitas Scientiarum0122-74832027-13522011-08-01162111118Rizosferas de árvores acumuladoras de fósforo na Amazonia BrasileiraPatrícia Chaves de OliveiraCláudio José Reis de CarvalhoRhizosphere of tress that accumulate phosphorus in the Brazilian Amazon. Objective. With the purpose of knowing the strategiesof tolerance of two phosphorus-accumulating species (Neea macrophylla and Cecropia palmate) and a non-accumulating species(Casearia arborea) to phosphorus-deficient soils, we characterized the rhizosphere of these species using a multivariate analysis andcorrelation matrices in relation to the concentrations of organic phosphorus, available phosphorus, soil organic carbon, organic carbonfrom microbial biomass, acid phosphatase enzyme activity, and root infection by mycorrhizal fungi. Materials and methods. Theresearch was carried out in the Igarapé-Açú town, state of Pará, Brazil in secondary forests with five years of regeneration, where theparameters above mentioned were monitored. Results. Results did not reveal significant differences between the species depending onthe characteristics of the soil next to the rhizospheres, suggesting homogeneous conditions. The enzymatic activity was slightly higherin the species with less potential in accumulating P (Casearia arborea) suggesting that efficiency in P use is not determined by theenzymatic activity. Conclusions. Neea macrophylla presented a slightly higher number of mycorrhizal root infections in comparisonto the other species, indicating that this could be a tolerance strategy in those environments, while in Cecropia palmata and Caseariaarborea it seems that enzymatic activity is the strategy employed.http://revistas.javeriana.edu.co/index.php/scientarium/article/view/1643/1070acid phosphataseBrazilian Amazonrhizosphere |
| spellingShingle | Patrícia Chaves de Oliveira Cláudio José Reis de Carvalho Rizosferas de árvores acumuladoras de fósforo na Amazonia Brasileira Universitas Scientiarum acid phosphatase Brazilian Amazon rhizosphere |
| title | Rizosferas de árvores acumuladoras de fósforo na Amazonia Brasileira |
| title_full | Rizosferas de árvores acumuladoras de fósforo na Amazonia Brasileira |
| title_fullStr | Rizosferas de árvores acumuladoras de fósforo na Amazonia Brasileira |
| title_full_unstemmed | Rizosferas de árvores acumuladoras de fósforo na Amazonia Brasileira |
| title_short | Rizosferas de árvores acumuladoras de fósforo na Amazonia Brasileira |
| title_sort | rizosferas de arvores acumuladoras de fosforo na amazonia brasileira |
| topic | acid phosphatase Brazilian Amazon rhizosphere |
| url | http://revistas.javeriana.edu.co/index.php/scientarium/article/view/1643/1070 |
| work_keys_str_mv | AT patriciachavesdeoliveira rizosferasdearvoresacumuladorasdefosforonaamazoniabrasileira AT claudiojosereisdecarvalho rizosferasdearvoresacumuladorasdefosforonaamazoniabrasileira |