Fig. 2
The effects of fluridone (ABA synthesis inhibitor) and 3-mercaptopropionic acid (3-MP; GABA synthesis inhibitor) on reactive oxygen species (ROS) homeostasis of the W- and MC-primed cotton seeds under salt stress. A Nitrotetrazolium blue chloride (NBT) and B 3,3'-Diaminobenzidine (DAB) histochemical staining of the W- and MC-primed cotton seeds after 24 h of salt stress. C Superoxide anion (O2.−) and D hydrogen peroxide (H2O2) contents in the W- and MC-primed cotton seeds after 24 h of salt stress. WCK: water-primed seeds germinated in the sand without NaCl; WS: water-primed seeds germinated in the sand containing NaCl; MCS: MC-primed seeds germinated in the sand containing NaCl. The bars represent the means ± SE of three replicate samples