With young stem segment of Euonymus japonicus as explants, callus induction were studied on MS basal medium supplemented with different hormone combinations including BA and NAA, IBA , 2,4-D.
The present difficulties D. stem from our failure to deal with the problem when it first arose.
现在的可能难是由于问题开始时我们的错误处理的结果。
3
Goat epidermal stem cells were round or elliptical at beginning of in vitro culture with big obvious nucleus, then became colony-like, could grow 14 ~ 20 d.