66 The chemodiversity of paddy soil dissolved orga

66 The chemodiversity of paddy soil dissolved organic matter correlates with microbial community at continental scales.RESEARCHOpenAccessThechemodiversityofpaddysoildissolvedorganicmattercorrelateswithmicrobialcommunityatcontinentalscalesHong-YiLi1†,HangWang2†,Hai-TiaoWang3,4,Pei-YongXin5,Xin-HuaXu1,YunMa6,Wei-PingLiu1,Chang-YunTeng1,7,Cheng-LiangJiang1,7,Li-PingLou1,WyattArnold3,4,LaurenCralle3,4,Yong-GuanZhu8,Jin-FangChu5,JackAGilbert3,4*andZhi-JianZhang1,7,9*AbstractBackground:Paddysoildissolvedorganicmatter(DOM)representsamajorhotspotforsoilbiogeochemistry,yetweknowlittleaboutitschemodiversityletalonethemicrobialcommunitythatshapesit.Here,weleveragedultrahigh-resolutionmassspectrometry,amplicon,andmetagenomicsequencingtocharacterizethemoleculardistributionofDOMandthetaxonomicandfunctionalmicrobialdiversityinpaddysoilsacrossChina.WehypothesizedthatvariancesinmicrobialcommunitysignificantlyassociatewithchangesinsoilDOMmolecularcomposition.Results:WereportthatbothmicrobialandDOMprofil