differentiation of callus的用法和样例：
- NaCl stress inhibited the differentiation of callus and plant regeneration.
- Toxin has effect on growth and differentiation of calli.
- The regeneration system of soybean is not perfect because the differentiation of callus tissue and the protoplast regeneration are difficult .
- IV.6-BA has vital effect on callus differentiation. 0 mg/L is propitious to the differentiation of callus from mature embryo, and the highest differentiation frequency is 90.9% for Delaware and 69.2% for Juventus.
- The effects of different media with various hormone concentrations on induction of callus,differentiation of adventitious bud and rooting from 4 different tomato leaves were studied.
- Fig 2. Differentiation of young shoots from transformed callus.