“…Further research defined the roles of many of these genes. Included among these functions are exopolysaccharide production, modification, and secretion (pscA/exoC, chvA, and chvB [36,37,88,89,313]) and other roles in bacterial attachment to plant cells (att genes [212,213]), sugar transporters involved in coinduction of vir genes (chvE [86,172,289]), regulation of vir gene induction (chvD [204]), and T-DNA transport (acvB [168,248,360,361,362]). …”