Contrasting Nitrogen Fertilisation Rates Alter Mycorrhizal Contribution to Barley Nutrition in a Field Trial

Controlled environment studies show that arbuscular mycorrhizal fungi (AMF) may contribute to plant nitrogen (N) uptake, but the role of these near-ubiquitous symbionts in crop plant N nutrition under natural field conditions remains largely unknown. In a field trial, we tested the effects of N fert...

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Main Authors: Tom Thirkell, Duncan Cameron, Angela Hodge
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-10-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fpls.2019.01312/full
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author Tom Thirkell
Tom Thirkell
Duncan Cameron
Angela Hodge
author_facet Tom Thirkell
Tom Thirkell
Duncan Cameron
Angela Hodge
author_sort Tom Thirkell
collection DOAJ
description Controlled environment studies show that arbuscular mycorrhizal fungi (AMF) may contribute to plant nitrogen (N) uptake, but the role of these near-ubiquitous symbionts in crop plant N nutrition under natural field conditions remains largely unknown. In a field trial, we tested the effects of N fertilisation and barley (Hordeum vulgare L.) cultivar identity on the contribution of AMF to barley N uptake using 15N tracers added to rhizosphere soil compartments. AMF were shown capable of significantly increasing plant 15N acquisition from root exclusion zones, and this was influenced by nitrogen addition type, N fertiliser application rate and barley cultivar identity. Our data demonstrate a previously overlooked potential route of crop plant N uptake which may be influenced substantially and rapidly in response to shifting agricultural management practices.
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spelling doaj.art-af206342616a46bc9632129fc13fb2782022-12-22T01:09:18ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2019-10-011010.3389/fpls.2019.01312473470Contrasting Nitrogen Fertilisation Rates Alter Mycorrhizal Contribution to Barley Nutrition in a Field TrialTom Thirkell0Tom Thirkell1Duncan Cameron2Angela Hodge3Department of Biology, University of York, York, United KingdomDepartment of Animal and Plant Sciences, University of Sheffield, Sheffield, United KingdomDepartment of Animal and Plant Sciences, University of Sheffield, Sheffield, United KingdomDepartment of Biology, University of York, York, United KingdomControlled environment studies show that arbuscular mycorrhizal fungi (AMF) may contribute to plant nitrogen (N) uptake, but the role of these near-ubiquitous symbionts in crop plant N nutrition under natural field conditions remains largely unknown. In a field trial, we tested the effects of N fertilisation and barley (Hordeum vulgare L.) cultivar identity on the contribution of AMF to barley N uptake using 15N tracers added to rhizosphere soil compartments. AMF were shown capable of significantly increasing plant 15N acquisition from root exclusion zones, and this was influenced by nitrogen addition type, N fertiliser application rate and barley cultivar identity. Our data demonstrate a previously overlooked potential route of crop plant N uptake which may be influenced substantially and rapidly in response to shifting agricultural management practices.https://www.frontiersin.org/article/10.3389/fpls.2019.01312/fullarbuscular mycorrhizanitrogenbarleyfield trialplant ecophysiology
spellingShingle Tom Thirkell
Tom Thirkell
Duncan Cameron
Angela Hodge
Contrasting Nitrogen Fertilisation Rates Alter Mycorrhizal Contribution to Barley Nutrition in a Field Trial
Frontiers in Plant Science
arbuscular mycorrhiza
nitrogen
barley
field trial
plant ecophysiology
title Contrasting Nitrogen Fertilisation Rates Alter Mycorrhizal Contribution to Barley Nutrition in a Field Trial
title_full Contrasting Nitrogen Fertilisation Rates Alter Mycorrhizal Contribution to Barley Nutrition in a Field Trial
title_fullStr Contrasting Nitrogen Fertilisation Rates Alter Mycorrhizal Contribution to Barley Nutrition in a Field Trial
title_full_unstemmed Contrasting Nitrogen Fertilisation Rates Alter Mycorrhizal Contribution to Barley Nutrition in a Field Trial
title_short Contrasting Nitrogen Fertilisation Rates Alter Mycorrhizal Contribution to Barley Nutrition in a Field Trial
title_sort contrasting nitrogen fertilisation rates alter mycorrhizal contribution to barley nutrition in a field trial
topic arbuscular mycorrhiza
nitrogen
barley
field trial
plant ecophysiology
url https://www.frontiersin.org/article/10.3389/fpls.2019.01312/full
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