Artículo
Sternberg, L.D.S.L.; Bucci, S.; Franco, A.; Goldstein, G.; Hoffman, W.A.; Meinzer, F.C.; Moreira, M.Z.; Scholz, F. "Long range lateral root activity by neo-tropical savanna trees" (2005) Plant and Soil. 270(1):169-178
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Abstract:
The extent of water uptake by lateral roots of savanna trees in the Brazilian highlands was measured by irrigating two 2 by 2 m plots with deuterium-enriched water and assaying for the abundance of deuterium in stem water from trees inside and at several distances from the irrigation plots. Stem water of trees inside the irrigation plots was highly enriched compared to that of control trees, whereas stem water of trees just outside the plot was only slightly enriched compared with that from control trees. Therefore, bulk water uptake in the savanna trees studied occurred in a horizontally restricted area, indicating that their rooting structure was characterized by a dense cluster of short roots associated with the main trunk and a few meandering long range lateral roots. This root architecture was confirmed by extensive excavations of several species. The same deuterium labeling pattern was observed in an Amazonian tropical forest. The savanna ecosystem, however, differed from the tropical forest ecosystem by having a greater proportion of trees outside the irrigation plots having stem water with deuterium levels significantly above background. This leads us to the conclusion that savanna trees have more or longer lateral roots compared to tropical forest trees. The greater lateral root development in savanna trees may be an adaptation for more efficient nutrient absorption. © Springer 2004.
Registro:
| Documento: | Artículo |
| Título: | Long range lateral root activity by neo-tropical savanna trees |
| Autor: | Sternberg, L.D.S.L.; Bucci, S.; Franco, A.; Goldstein, G.; Hoffman, W.A.; Meinzer, F.C.; Moreira, M.Z.; Scholz, F. |
| Filiación: | Department of Biology, University of Miami, Coral Gables, FL 33124, United States Laboratorio de Ecologia Funcional, Departamiento de Biologia, Ciudad Universitaria, Nunez, Buenos Aires, Argentina Departamento de Botanica, Universidade de Brasilia, caixa postal 04457, Brasilia, DF 70919-970, Brazil Department of Botany, Campus Box 7612, North Carolina State University, Raleigh, NC 27695-7612, United States USDA Forest Service, 3200 SW Jefferson Way, Corvallis, OR 97331, United States Centro de Energia Nuclear Na Agricultura, Universidade de São Paulo, CP 96, CEP 13400-970 Piracicaba, SP, Brazil |
| Palabras clave: | root system; savanna; tree; water uptake; Brazil; South America; Western Hemisphere; World |
| Año: | 2005 |
| Volumen: | 270 |
| Número: | 1 |
| Página de inicio: | 169 |
| Página de fin: | 178 |
| DOI: | http://dx.doi.org/10.1007/s11104-004-1334-9 |
| Título revista: | Plant and Soil |
| Título revista abreviado: | Plant Soil |
| ISSN: | 0032079X |
| CODEN: | PLSOA |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0032079X_v270_n1_p169_Sternberg |
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Citas:
---------- APA ----------
Sternberg, L.D.S.L., Bucci, S., Franco, A., Goldstein, G., Hoffman, W.A., Meinzer, F.C., Moreira, M.Z.,..., Scholz, F. (2005) . Long range lateral root activity by neo-tropical savanna trees. Plant and Soil, 270(1), 169-178.http://dx.doi.org/10.1007/s11104-004-1334-9
---------- CHICAGO ----------
Sternberg, L.D.S.L., Bucci, S., Franco, A., Goldstein, G., Hoffman, W.A., Meinzer, F.C., et al. "Long range lateral root activity by neo-tropical savanna trees" . Plant and Soil 270, no. 1 (2005) : 169-178.http://dx.doi.org/10.1007/s11104-004-1334-9
---------- MLA ----------
Sternberg, L.D.S.L., Bucci, S., Franco, A., Goldstein, G., Hoffman, W.A., Meinzer, F.C., et al. "Long range lateral root activity by neo-tropical savanna trees" . Plant and Soil, vol. 270, no. 1, 2005, pp. 169-178.http://dx.doi.org/10.1007/s11104-004-1334-9
---------- VANCOUVER ----------
Sternberg, L.D.S.L., Bucci, S., Franco, A., Goldstein, G., Hoffman, W.A., Meinzer, F.C., et al. Long range lateral root activity by neo-tropical savanna trees. Plant Soil. 2005;270(1):169-178.http://dx.doi.org/10.1007/s11104-004-1334-9
