?url_ver=Z39.88-2004&rft_id=https%3A%2F%2Fdoi.org%2F10.1093%2Ffemsec%2Ffiab134&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=https%3A%2F%2Forgprints.org%2Fid%2Feprint%2F42578%2F&rft.title=Indicative+bacterial+communities+and+taxa+of+disease-suppressing+and+growth-promoting+composts+and+their+associations+to+the+rhizoplane&rft.creator=Mayerhofer%2C+Johanna&rft.creator=Thuerig%2C+Barbara&rft.creator=Oberh%C3%A4nsli%2C+Thomas&rft.creator=Enderle%2C+Eileen&rft.creator=Lutz%2C+Stefanie&rft.creator=Ahrens%2C+Christian+H.&rft.creator=Fuchs%2C+Jacques+G.&rft.creator=Widmer%2C+Franco&rft.subject=Crop+health%2C+quality%2C+protection&rft.description=Compost+applications+vary+in+their+plant+growth+promotion+and+plant+disease+suppression%2C+likely+due+to+differences+in+physico-chemical+and+biological+parameters.+Our+hypothesis+was+that+bacteria+are+important+for+plant+growth+promotion+and+disease+suppression+of+composts+and%2C+therefore%2C+composts+having+these+traits+would+contain+similar+sets+of+indicative+bacterial+taxa.+Seventeen+composts+prepared+from+five+different+commercial+providers+and+different+starting+materials+were+classified+accordingly+with+bioassays+using+cress+plants+and+the+pathogen+Pythium+ultimum.+Using+a+metabarcoding+approach%2C+bacterial+communities+were+assessed+in+bulk+composts+and+cress+rhizoplanes.+Six+and+nine+composts+showed+significant+disease+suppression+or+growth+promotion%2C+respectively%2C+but+these+traits+did+not+correlate.+Growth+promotion+correlated+positively+with+nitrate+content+of+composts%2C+whereas+disease+suppression+correlated+negatively+with+factors+representing+compost+age.%0D%0AGrowth+promotion+and+disease+suppression+explained+significant+portions+of+variation+in+bacterial+community+structures%2C+i.e.+11.5%25+and+14.7%25%2C+respectively.+Among+the+sequence+variants+(SVs)+associated+with+growth+promotion%2C+Microvirga%2C+Acinetobacter%2C+Streptomyces%2C+Bradyrhizobium+and+Bacillus+were+highly+promising%2C+while+in+suppressive+composts%2C+Ureibacillus%2C+Thermogutta+and+Sphingopyxis+were+most+promising.+Associated+SVs+represent+the+basis+for+developing+prediction+tools+for+growth+promotion+and+disease+suppression%2C+a+highly+desired+goal+for+targeted+compost+production+and+application.&rft.date=2021&rft.type=Journal+paper&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.rights=cc_by_4&rft.identifier=%2Fid%2Feprint%2F42578%2F1%2FMayerhofer_Thuerig_FEMS_2021.pdf&rft.identifier=+++Mayerhofer%2C+Johanna%3B+Thuerig%2C+Barbara%3B+Oberh%C3%A4nsli%2C+Thomas%3B+Enderle%2C+Eileen%3B+Lutz%2C+Stefanie%3B+Ahrens%2C+Christian+H.%3B+Fuchs%2C+Jacques+G.+and+Widmer%2C+Franco+++(2021)+Indicative+bacterial+communities+and+taxa+of+disease-suppressing+and+growth-promoting+composts+and+their+associations+to+the+rhizoplane.+++FEMS+Microbiology+Ecology%2C+97+(10)%2C+pp.+1-15.++++++++&rft.relation=https%3A%2F%2Fdoi.org%2F10.1093%2Ffemsec%2Ffiab134&rft.identifier=https%3A%2F%2Fdoi.org%2F10.1093%2Ffemsec%2Ffiab134