Linking root traits to nutrient foraging in arbuscular mycorrhizal trees in a temperate forest

David Eissenstat, Joshua M. Kucharski, Marcin Zadworny, Thomas Adams, Roger T. Koide

Research output: Contribution to journalArticle

82 Citations (Scopus)

Abstract

The identification of plant functional traits that can be linked to ecosystem processes is of wide interest, especially for predicting vegetational responses to climate change. Root diameter of the finest absorptive roots may be one plant trait that has wide significance. Do species with relatively thick absorptive roots forage in nutrient-rich patches differently from species with relatively fine absorptive roots? We measured traits related to nutrient foraging (root morphology and architecture, root proliferation, and mycorrhizal colonization) across six coexisting arbuscular mycorrhizal (AM) temperate tree species with and without nutrient addition. Root traits such as root diameter and specific root length were highly correlated with root branching intensity, with thin-root species having higher branching intensity than thick-root species. In both fertilized and unfertilized soil, species with thin absorptive roots and high branching intensity showed much greater root length and mass proliferation but lower mycorrhizal colonization than species with thick absorptive roots. Across all species, fertilization led to increased root proliferation and reduced mycorrhizal colonization. These results suggest that thin-root species forage more by root proliferation, whereas thick-root species forage more by mycorrhizal fungi. In mineral nutrient-rich patches, AM trees seem to forage more by proliferating roots than by mycorrhizal fungi.

Original languageEnglish (US)
Pages (from-to)114-124
Number of pages11
JournalNew Phytologist
Volume208
Issue number1
DOIs
StatePublished - Jan 1 2015

Fingerprint

temperate forests
foraging
Food
nutrients
Fungi
Climate Change
Fertilization
Minerals
Ecosystem
Soil
forage
Forests
branching
mycorrhizal fungi

All Science Journal Classification (ASJC) codes

  • Physiology
  • Plant Science

Cite this

Eissenstat, David ; Kucharski, Joshua M. ; Zadworny, Marcin ; Adams, Thomas ; Koide, Roger T. / Linking root traits to nutrient foraging in arbuscular mycorrhizal trees in a temperate forest. In: New Phytologist. 2015 ; Vol. 208, No. 1. pp. 114-124.
@article{b5d5a2b0866c40b4ada806600d8370af,
title = "Linking root traits to nutrient foraging in arbuscular mycorrhizal trees in a temperate forest",
abstract = "The identification of plant functional traits that can be linked to ecosystem processes is of wide interest, especially for predicting vegetational responses to climate change. Root diameter of the finest absorptive roots may be one plant trait that has wide significance. Do species with relatively thick absorptive roots forage in nutrient-rich patches differently from species with relatively fine absorptive roots? We measured traits related to nutrient foraging (root morphology and architecture, root proliferation, and mycorrhizal colonization) across six coexisting arbuscular mycorrhizal (AM) temperate tree species with and without nutrient addition. Root traits such as root diameter and specific root length were highly correlated with root branching intensity, with thin-root species having higher branching intensity than thick-root species. In both fertilized and unfertilized soil, species with thin absorptive roots and high branching intensity showed much greater root length and mass proliferation but lower mycorrhizal colonization than species with thick absorptive roots. Across all species, fertilization led to increased root proliferation and reduced mycorrhizal colonization. These results suggest that thin-root species forage more by root proliferation, whereas thick-root species forage more by mycorrhizal fungi. In mineral nutrient-rich patches, AM trees seem to forage more by proliferating roots than by mycorrhizal fungi.",
author = "David Eissenstat and Kucharski, {Joshua M.} and Marcin Zadworny and Thomas Adams and Koide, {Roger T.}",
year = "2015",
month = "1",
day = "1",
doi = "10.1111/nph.13451",
language = "English (US)",
volume = "208",
pages = "114--124",
journal = "New Phytologist",
issn = "0028-646X",
publisher = "Wiley-Blackwell",
number = "1",

}

Linking root traits to nutrient foraging in arbuscular mycorrhizal trees in a temperate forest. / Eissenstat, David; Kucharski, Joshua M.; Zadworny, Marcin; Adams, Thomas; Koide, Roger T.

In: New Phytologist, Vol. 208, No. 1, 01.01.2015, p. 114-124.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Linking root traits to nutrient foraging in arbuscular mycorrhizal trees in a temperate forest

AU - Eissenstat, David

AU - Kucharski, Joshua M.

AU - Zadworny, Marcin

AU - Adams, Thomas

AU - Koide, Roger T.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - The identification of plant functional traits that can be linked to ecosystem processes is of wide interest, especially for predicting vegetational responses to climate change. Root diameter of the finest absorptive roots may be one plant trait that has wide significance. Do species with relatively thick absorptive roots forage in nutrient-rich patches differently from species with relatively fine absorptive roots? We measured traits related to nutrient foraging (root morphology and architecture, root proliferation, and mycorrhizal colonization) across six coexisting arbuscular mycorrhizal (AM) temperate tree species with and without nutrient addition. Root traits such as root diameter and specific root length were highly correlated with root branching intensity, with thin-root species having higher branching intensity than thick-root species. In both fertilized and unfertilized soil, species with thin absorptive roots and high branching intensity showed much greater root length and mass proliferation but lower mycorrhizal colonization than species with thick absorptive roots. Across all species, fertilization led to increased root proliferation and reduced mycorrhizal colonization. These results suggest that thin-root species forage more by root proliferation, whereas thick-root species forage more by mycorrhizal fungi. In mineral nutrient-rich patches, AM trees seem to forage more by proliferating roots than by mycorrhizal fungi.

AB - The identification of plant functional traits that can be linked to ecosystem processes is of wide interest, especially for predicting vegetational responses to climate change. Root diameter of the finest absorptive roots may be one plant trait that has wide significance. Do species with relatively thick absorptive roots forage in nutrient-rich patches differently from species with relatively fine absorptive roots? We measured traits related to nutrient foraging (root morphology and architecture, root proliferation, and mycorrhizal colonization) across six coexisting arbuscular mycorrhizal (AM) temperate tree species with and without nutrient addition. Root traits such as root diameter and specific root length were highly correlated with root branching intensity, with thin-root species having higher branching intensity than thick-root species. In both fertilized and unfertilized soil, species with thin absorptive roots and high branching intensity showed much greater root length and mass proliferation but lower mycorrhizal colonization than species with thick absorptive roots. Across all species, fertilization led to increased root proliferation and reduced mycorrhizal colonization. These results suggest that thin-root species forage more by root proliferation, whereas thick-root species forage more by mycorrhizal fungi. In mineral nutrient-rich patches, AM trees seem to forage more by proliferating roots than by mycorrhizal fungi.

UR - http://www.scopus.com/inward/record.url?scp=84940467454&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84940467454&partnerID=8YFLogxK

U2 - 10.1111/nph.13451

DO - 10.1111/nph.13451

M3 - Article

C2 - 25970701

AN - SCOPUS:84940467454

VL - 208

SP - 114

EP - 124

JO - New Phytologist

JF - New Phytologist

SN - 0028-646X

IS - 1

ER -