Fig. 8: 15N-Glu and 15N-Gln uptake by Arabidopsis lines overexpressing CsLHT1 and CsLHT6.

a Expression levels of CsLHT1 and CsLHT6 in 35 S::CsLHT1 and 35 S::CsLHT6 transgenic Arabidopsis lines. Arabidopsis transformed with an empty vector (Ev) served as the negative control. The data represent the means ± SDs (n = 3). b Uptake of 15N-Glu and 15N-Gln in Ev-, CsLHT1- and CsLHT6-overexpressing Arabidopsis lines. The data represent the means ± SDs (n = 3). The asterisks represent statistical significance determined by Student’s t test (***p < 0.001). The numbers represent individual transgenic lines