Interspecific differences in root foraging precision cannot be directly inferred from species' mycorrhizal status or fine root economics

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F23%3A00567413" target="_blank" >RIV/67985939:_____/23:00567413 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/23:10457020

Result on the web

<a href="https://doi.org/10.1111/oik.08995" target="_blank" >https://doi.org/10.1111/oik.08995</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/oik.08995" target="_blank" >10.1111/oik.08995</a>

Result language

angličtina

Original language name

Interspecific differences in root foraging precision cannot be directly inferred from species' mycorrhizal status or fine root economics

Original language description

Nutrient acquisition in plants can be represented by a suite of intercorrelated root traits such as root diameter, nitrogen content, root tissue density and specific root length. However, it is unclear how a plant's ability to precisely forage for nutrients in a heterogeneous soil environment (i.e. the precision of placing roots into nutrient-rich areas) relates to these traits. Mycorrhizal symbiosis also affects the relationship between the fine root traits and root foraging precision because fungal hyphae may be used for foraging instead of roots. Hypotheses matching high root foraging precision with low mycorrhizal colonization or 'fast' acquisitive strategies of plants have been raised based either on data from tree species or a limited number of herbaceous species. To test these hypotheses, we compiled data quantifying the experimentally measured degree to which root biomass responded to patchy substrate nutrient concentrations (i.e. root foraging precision) for 123 herbaceous grassland species using a partial meta-analysis. We tested root foraging precision relationship with root traits involved in nutrient acquisition and mycorrhizal symbiosis (root diameter, specific root length, root tissue density, root tissue nitrogen content and mycorrhizal colonization). The root foraging precision data came from four different pot experiments, and the trait data were extracted from publicly available trait databases. We used a phylogenetically informed approach in order to detect the degree of conservation of the relationships. We found that root foraging precision was not significantly correlated with other fine root traits and mycorrhizal colonization. Thus, it appears unrelated to the main dimensions of the nutrient acquisition space of herbaceous species, namely acquisitive-conservative strategy and outsourcing of acquisition to the fungi. Also, we found only a very weak phylogenetic signal in root foraging precision of 123 species. Our results suggest that root foraging precision constitutes another distinct, evolutionarily independent dimension in herbaceous species' trait space.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10618 - Ecology

Project

<a href="/en/project/GA19-00630S" target="_blank" >GA19-00630S: Mycorrhizal symbiosis, roots and ramets - plant foraging strategies to exploit heterogeneous resources</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Oikos

ISSN

0030-1299

e-ISSN

1600-0706

Volume of the periodical

2023

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

e08995

UT code for WoS article

000794167700001

EID of the result in the Scopus database

2-s2.0-85128969658