Figure 1. Response of sos6-1 plants to different salts and ion content measurement.
(a) Four-day-old wild type and sos6-1 seedlings grown on germination media were transferred to media containing 0 or 50 mM NaCl and allowed to grow an additional 8 days. (b) Four-day-old wild type and sos6-1 seedlings grown on germination media were transferred to media containing 0, 50 or 100 mM NaCl and allowed to grow additional 30 days. (c) Response of sos6-1 plants to various levels of NaCl. The root growth was represented as proportion of growth compared with growth without NaCl (100%). (d) Response of sos6-1 plants to different levels of KCl. (e) Response of sos6-1 plants to various concentrations of LiCl. Error bars in (c–e) indicate standard deviation (n = 18). (f) Na+ content in sos6-1 plants as described (Zhu et al., 2007a). (g) K+ content in sos6-1 plants as described (Zhu et al., 2007a). (h) Sensitivity of sos6-1 seed germination to NaCl as described (Zhu et al., 2002). Error bars in (f–h) indicate standard deviation (n = 6). All experiments presented here and in the subsequent figures were performed at least three times and similar results were obtained.