“…However, recently, CCXs in Arabidopsis were also found to be related to Na + compartmentation. Heterologous expression of AtCCX3 in yeast increased accumulation of Na + in yeast (Morris et al, 2008), similar to NHX1 to promote Na + uptake (Kinclova et al, 2003;Darley et al, 2000;Fukuda et al, 2011). When compared with NHX1, AtCCX3 simultaneously transported K + and Mn 2+ apart from Na + .…”