70 Suppression of the activity of arbuscular mycor

70 Suppression of the activity of arbuscular mycorrhizal fungi by the soil microbiota.TheISMEJournal(2018)12:1296–1307https://doi.org/10.1038/s41396-018-0059-3ARTICLESuppressionoftheactivityofarbuscularmycorrhizalfungibythesoilmicrobiotaNannaBSvenningsen1●StephanieJWatts-Williams2●ErikJJoner3●FabioBattini4●AikateriniEfthymiou1●CarlaCruz-Paredes1●OleNybroe1●IverJakobsen1Received:8October2017/Revised:28November2017/Accepted:12December2017/Publishedonline:30January2018©TheAuthor(s)2018.ThisarticleispublishedwithopenaccessAbstractArbuscularmycorrhizalfungi(AMF)coloniserootsofmostplants;theirextra-radicalmycelium(ERM)extendsintothesoilandacquiresnutrientsfortheplant.TheERMcoexistswithsoilmicrobialcommunitiesanditisunresolvedwhetherthesecommunitiesstimulateorsuppresstheERMactivity.ThisworkstudiedtheprevalenceofsuppressedERMactivityandidentifiedmaincomponentsbehindthesuppression.ERMactivitywasdeterminedbyquantifyingERM-mediatedPuptakefromradioisotope-labelledunsterilesoilintoplants,andcompare