Effect of sodium (50, 200 mM) and sulfate (0, 10 mM) concentrations on sulfate, sulfite, and hydrogen sulfide contents in Salicornia and Sarcocornia. Sulfate is applied as sodium sulfate and the remainder sodium as sodium chloride. A, Sulfate levels in Salicornia and Sarcocornia. The values are means ± se (n = 3). B, Sulfite levels in Salicornia and in Sarcocornia. The values are means ± se (n = 3). The data are from one of three different experiments that yielded similar results. C, Hydrogen sulfide levels in Salicornia and in Sarcocornia. The values are means ± se (n = 4). Values denoted with different letters are significantly different according to the Tukey-Kramer HSD test, P < 0.05 (JMP 8.0 software). Different upper-case letters indicate significant differences between sulfate treatments in Salicornia or Sarcocornia. Different lower-case letters indicate significant differences between salinity treatments in Salicornia or Sarcocornia. Different Greek letters indicate significant difference between Salicornia and Sarcocornia subjected to the same treatment.