Long range lateral root activity by neo-tropical savanna trees

Leonel Sternberg, Sandra Bucci, Augusto Franco, Guillermo Goldstein, William A. Hoffman, Frederick C. Meinzer, Marcelo Z. Moreira, Fabian Scholz

Research output: Contribution to journalArticle

21 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)169-178
Number of pages10
JournalPlant and Soil
Volume270
Issue number1
DOIs
StatePublished - Mar 1 2005

Fingerprint

savanna
savannas
deuterium
tropical forests
stems
irrigation
stem
water uptake
water
tropical forest
root architecture
forest trees
forest ecosystems
rooting
tree trunk
highlands
excavation
ecosystems
nutrients
nutrient

ASJC Scopus subject areas

  • Soil Science
  • Agronomy and Crop Science
  • Plant Science

Cite this

Sternberg, L., Bucci, S., Franco, A., Goldstein, G., Hoffman, W. A., Meinzer, F. C., ... Scholz, F. (2005). Long range lateral root activity by neo-tropical savanna trees. Plant and Soil, 270(1), 169-178. https://doi.org/10.1007/s11104-004-1334-9

Long range lateral root activity by neo-tropical savanna trees. / Sternberg, Leonel; Bucci, Sandra; Franco, Augusto; Goldstein, Guillermo; Hoffman, William A.; Meinzer, Frederick C.; Moreira, Marcelo Z.; Scholz, Fabian.

In: Plant and Soil, Vol. 270, No. 1, 01.03.2005, p. 169-178.

Research output: Contribution to journalArticle

Sternberg, L, Bucci, S, Franco, A, Goldstein, G, Hoffman, WA, Meinzer, FC, Moreira, MZ & Scholz, F 2005, 'Long range lateral root activity by neo-tropical savanna trees', Plant and Soil, vol. 270, no. 1, pp. 169-178. https://doi.org/10.1007/s11104-004-1334-9
Sternberg L, Bucci S, Franco A, Goldstein G, Hoffman WA, Meinzer FC et al. Long range lateral root activity by neo-tropical savanna trees. Plant and Soil. 2005 Mar 1;270(1):169-178. https://doi.org/10.1007/s11104-004-1334-9
Sternberg, Leonel ; Bucci, Sandra ; Franco, Augusto ; Goldstein, Guillermo ; Hoffman, William A. ; Meinzer, Frederick C. ; Moreira, Marcelo Z. ; Scholz, Fabian. / Long range lateral root activity by neo-tropical savanna trees. In: Plant and Soil. 2005 ; Vol. 270, No. 1. pp. 169-178.
@article{c427a44efcf74f39bc45f49213b2ccec,
title = "Long range lateral root activity by neo-tropical savanna trees",
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.",
author = "Leonel Sternberg and Sandra Bucci and Augusto Franco and Guillermo Goldstein and Hoffman, {William A.} and Meinzer, {Frederick C.} and Moreira, {Marcelo Z.} and Fabian Scholz",
year = "2005",
month = "3",
day = "1",
doi = "10.1007/s11104-004-1334-9",
language = "English",
volume = "270",
pages = "169--178",
journal = "Plant and Soil",
issn = "0032-079X",
publisher = "Springer Netherlands",
number = "1",

}

TY - JOUR

T1 - Long range lateral root activity by neo-tropical savanna trees

AU - Sternberg, Leonel

AU - Bucci, Sandra

AU - Franco, Augusto

AU - Goldstein, Guillermo

AU - Hoffman, William A.

AU - Meinzer, Frederick C.

AU - Moreira, Marcelo Z.

AU - Scholz, Fabian

PY - 2005/3/1

Y1 - 2005/3/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=21044459068&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=21044459068&partnerID=8YFLogxK

U2 - 10.1007/s11104-004-1334-9

DO - 10.1007/s11104-004-1334-9

M3 - Article

AN - SCOPUS:21044459068

VL - 270

SP - 169

EP - 178

JO - Plant and Soil

JF - Plant and Soil

SN - 0032-079X

IS - 1

ER -