Grape Rootstock effect on root system bacterial community

The root system of ungrafted (U.G.B., V. vinifera) and grafted grape on four different rootstocks (V. rupestris x V. berlandieri: SO4, 420A, 161.49 and 157.11) has been selected to evaluate the rootstock effect on the bacterial community enrollment. All the plants were cultivated under the same management practices and under the same climate conditions in an Oltrepo' Pavese vineyard, north Italy. We used high-throughput sequencing techniques to investigate the bacterial community naturally associated to the root system. Bacterial community assemblages, interactions and its predicted metabolisms have been also evaluated to understand the rootstock effect in the root tissues and in the rhizospheric soil.