A study of Glycine max (soybean) fungal communities under different agricultural practices

摘要: Abstract Both Glycine max (soybean) and Thlaspi arvense (pennycress) are valuable resources for renewable biofuels industrial products. Pennycress, a member of the Brassicaceae, can be grown over winter months providing soil cover thus reducing erosion. In addition, pennycress does not compete with food production making it an appealing option biofuels. The objective this study was to determine effect different agricultural practices on fungal communities associated soybean roots their interactions emerging crop/cover crop, pennycress. We examined collected in summer 2013 2014 from three treatment plots (organic, conventional soybeans, as crop). Root DNA amplified using primers followed by 454 pyrosequencing. A total 560,948 sequences were obtained Ascomycota dominant phylum all plot treatments. Soybean treatments dominated order Hypocreales Fusarium most abundant genus. Fungal community structure affected host farming practice. magnitude determined sampling year. pennycress, had distinct assembly did affect when used crop. organic significantly contained lower diversity than soybean, greatest differences observed 2014. This shows that plants agroecosystems regulated complex number abiotic biotic factors including weather conditions, practice, host.