The process of flower bud morphological differentiation may be divided into 12 phases.
一串红花穗、花序和单花形态分化可分为12个时期。
ATRA could induce morphological differentiation and inhibit growth of SY5Y cells and showed time and dose dependent manner.
ATRA对SY5Y细胞有抗增殖作用和诱导细胞分化作用，并呈一定时间和剂量依赖关系。
During embryogenesis and crown root formation, QHB expression was observed prior to the morphological differentiation of the root.
在胚发育和冠状根形成过程中，QHB在根的形态分化之前就已经表达。
During embryogenesis and crown root formation, QHB expression was observed prior to the morphological differentiation of the root.
在胚发育和冠状根形成过程中，QHB在根的形态分化之前就已经表达。
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