Figure 1.
STRK1 Positively Regulates Salt Tolerance in Rice at the Seedling Stage.
(A) Phenotypic comparison of seedlings grown under salt stress at the seedling stage. For STRK1-OE transgenic plants, 15-d-old seedlings were treated with 140 mM NaCl for 10 d and then recovered for 6 d. For STRK1-RNAi transgenic plants, 15-d-old seedlings were treated with 140 mM NaCl for 8 d and then recovered for 6 d.
(B) and (C) Survival rates of transgenic and wild-type plants in (A) after 6 d of recovery. Forty plants in each line were used for survival rate analysis.
(D) Chlorophyll content in leaves of 15-d-old plants treated with 100 mM NaCl for 7 d.
(E) MDA concentrations in leaves of 15-d-old plants after 100 mM NaCl treatment for 24 h.
(F) Relative ion leakage in leaves of 15-d-old plants after 100 mM NaCl treatment for 24 h. For all panels, OE indicates STRK1-overexpressing plants; Ri indicates STRK1-RNAi plants; numbers indicate different transgenic lines; data in (B) to (F) are presented as mean ± sd (n = 3, *P ≤ 0.05, **P ≤ 0.01, Student’s t test).