Fig. 4From: An efficient system for Agrobacterium-mediated transient transformation in Pinus tabuliformisEffect of sonication on transient transformation using A. tumefaciens LBA4404 and GV3101. a Calli were infected for 30 min and sonicated (5, 10, and 15 min). b Calli were sonicated (5, 10, and 15 min) and infected for 30 min. Each treatment comprised 27–30 explants and was performed in triplicate. Data are mean ± SDBack to article page