Facilitation of plant water uptake by an arbuscular mycorrhizal fungus: a Gordian knot of roots and hyphae

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F20%3A00524757" target="_blank" >RIV/61388971:_____/20:00524757 - isvavai.cz</a>

Alternative codes found

RIV/67985939:_____/20:00532337

Result on the web

<a href="https://link.springer.com/article/10.1007/s00572-020-00949-9" target="_blank" >https://link.springer.com/article/10.1007/s00572-020-00949-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00572-020-00949-9" target="_blank" >10.1007/s00572-020-00949-9</a>

Result language

angličtina

Original language name

Facilitation of plant water uptake by an arbuscular mycorrhizal fungus: a Gordian knot of roots and hyphae

Original language description

Arbuscular mycorrhizal (AM) fungi play a positive role in plant water relations, and the AM symbiosis is often cited as beneficial for overcoming drought stress of host plants. Nevertheless, water uptake via mycorrhizal hyphal networks has been little addressed experimentally, especially so through isotope tracing. In a greenhouse study conducted in two-compartment rhizoboxes, Medicago truncatula was planted in the primary compartment (PC), either inoculated with Rhizophagus irregularis or left uninoculated. Plant roots were either allowed to enter the secondary compartment (SC) or were restricted to the PC by root-excluding mesh. Substrate moisture was manipulated in the PC such that the plants were grown either in high moisture (15% of gravimetric water content, GWC) or low moisture (8% GWC). Meanwhile, the SC was maintained at 15% GWC throughout and served as a water source accessible (or not) by roots and/or hyphae. Water in the SC was labeled with deuterium (D) to quantify water uptake by the plants from the SC. Significantly, increased D incorporation into plants indicated higher water uptake by mycorrhizal plants when roots had access to the D source, but this was mainly explained by generally larger mycorrhizal root systems in proximity to the D source. On the other hand, AM fungal hyphae with access to the D source increased D incorporation into plants more than twofold compared to non-mycorrhizal plants. Despite this strong effect, water transport via AM fungal hyphae was low compared to the transpiration demand of the plants.

Czech name

—

Czech description

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Type

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

CEP classification

—

OECD FORD branch

10606 - Microbiology

Project

<a href="/en/project/GA17-12166S" target="_blank" >GA17-12166S: Functioning of arbuscular mycorrhizal symbiosis under soil water deficiency</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

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

Name of the periodical

Mycorrhiza

ISSN

0940-6360

e-ISSN

—

Volume of the periodical

30

Issue of the periodical within the volume

2-3

Country of publishing house

US - UNITED STATES

Number of pages

15

Pages from-to

299-313

UT code for WoS article

000524371500002

EID of the result in the Scopus database

2-s2.0-85083402115