Expression analysis of NaCl-158# and NaCl-167# by northern blot analysis. (a) Analysis of the expression pattern of NaCl-158# by northern blot. RNA was isolated from roots (R), stems (St), leaves (L), flowers (F) and seeds (S). The response of NaCl-158# to salt stress of P. tenuiflora culture cells treated with 200 mM NaCl solution for the indicated times before the RNA was isolated; (b) Analysis of the expression pattern of NaCl-167# by northern blot. RNA was isolated from roots (R), stems (St), leaves (L), flowers (F) and seeds (S). The response of NaCl-167# to salt stress of P. tenuiflora culture cells treated with 200 mM NaCl solution for the indicated times before the RNA was isolated.