Carbon flow from plant to arbuscular mycorrhizal fungi is reduced under phosphorus fertilization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F17%3A00483304" target="_blank" >RIV/61388971:_____/17:00483304 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/17:10367797

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s11104-017-3350-6" target="_blank" >http://dx.doi.org/10.1007/s11104-017-3350-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11104-017-3350-6" target="_blank" >10.1007/s11104-017-3350-6</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Carbon flow from plant to arbuscular mycorrhizal fungi is reduced under phosphorus fertilization

Popis výsledku v původním jazyce

Arbuscular mycorrhizal fungi (AMF) are plant root symbionts highly specialized upon phosphorus (P) supply to their hosts. We investigated plants' ability to regulate carbon (C) flow to AMF depending on the soil P supply. nLeek (Allium porrum), medic (Medicago truncatula), and ryegrass (Lolium perenne) were subjected to AMF inoculation and/or P fertilization in a glasshouse experiment. The C flows were traced using C-13 pulse labelling. nMycorrhizal P uptake responses were lowered by P fertilization in all tested plant species. Independently from the C flow to the roots, the C flow to AMF-signature fatty acid 16:1 omega 5 were reduced by P fertilization in leek and ryegrass (but not in medic). Calculated mycorrhizal C costs ranged between 0.9% and 10.5% of the plant C budget. nSuppression of the C flow from the plants to AMF resulted from both reduced abundance of AMF in the roots and lowered relative C income per unit of AMF biomass in P-fertilized pots. Although inconsistencies amongst different plant species demand caution in making generalizations, these results suggest an active role of host plants in regulating the C flow to AMF.

Název v anglickém jazyce

Carbon flow from plant to arbuscular mycorrhizal fungi is reduced under phosphorus fertilization

Popis výsledku anglicky

Arbuscular mycorrhizal fungi (AMF) are plant root symbionts highly specialized upon phosphorus (P) supply to their hosts. We investigated plants' ability to regulate carbon (C) flow to AMF depending on the soil P supply. nLeek (Allium porrum), medic (Medicago truncatula), and ryegrass (Lolium perenne) were subjected to AMF inoculation and/or P fertilization in a glasshouse experiment. The C flows were traced using C-13 pulse labelling. nMycorrhizal P uptake responses were lowered by P fertilization in all tested plant species. Independently from the C flow to the roots, the C flow to AMF-signature fatty acid 16:1 omega 5 were reduced by P fertilization in leek and ryegrass (but not in medic). Calculated mycorrhizal C costs ranged between 0.9% and 10.5% of the plant C budget. nSuppression of the C flow from the plants to AMF resulted from both reduced abundance of AMF in the roots and lowered relative C income per unit of AMF biomass in P-fertilized pots. Although inconsistencies amongst different plant species demand caution in making generalizations, these results suggest an active role of host plants in regulating the C flow to AMF.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10606 - Microbiology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Plant and Soil

ISSN

0032-079X

e-ISSN

—

Svazek periodika

419

Číslo periodika v rámci svazku

1-2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

15

Strana od-do

319-333

Kód UT WoS článku

000415350500023

EID výsledku v databázi Scopus

2-s2.0-85025478515