Longan(Dimocarpus longan Lour.) is one of the most important tropical and subtropical woody fruit trees in south China, the developmental degree of the embryo is closely related to the output and quality of fruit. Plant embryo development is a cell differentiation process, which undergoes the effects of oxidative stress. As the first line of defense against ROS, superoxide dismutase (SOD) plays an important role in the process of plant embryo development and cell differentiation. In this experiment, on the ...