Further, Arabidopsis amino acid transporters AAP3 and AAP6, which belong to a class of amino acid transporters known to be transcriptionally regulated by cytokinins (Brenner et al., 2005; Kiba et al., 2005; Lee et al., 2007), are necessary for infection of Arabidopsis plants by the root-knot nematode Meloidogyne incognita, indicating that successful colonization is dependent on amino acid transport to the sites of infection (Marella et al., 2013), in a process that may be mediated by cytokinins. Here, SLC38A7 is linked to infection.