瘤状体顶端由芽原基形成苗端，分化出生长点、原基、叶和腋芽原基。
The top of tumour-body formed shoot apex from bud primordium, and differentiated growing point, leaf primordium. young leaf and axillary bud primordium.
细胞学观察表明，培养后叶肉细胞明显增大，细胞分裂形成分生组织，由之形成芽原基。
Cytological observations showed that mesophyll cells were greatly enlarged, undergoing repeated cell divisions, then forming meristematic mass, from which buds were initiated.
为了探讨悬铃木冬芽休眠的机理，研究了悬铃木冬芽休眠过程中芽鳞及叶原基的内源激素变化与休眠的关系。
The relationship between dormancy and endogenous hormone inside buds scales and leaf primordium was studied in order to explore the mechanism of winter buds' dormancy in Platanus acerifolia.
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