目的探讨盐酸克伦特罗对大鼠胚胎肢芽细胞的影响。
Objective To study the effect of clenbuterol on limb bud cells of embryo of rats.
例如，生长素刺激细胞延伸的速度，促使芽和根生长，而抑制侧枝的生长。
Auxin, for instance, stimulates the rate of cell elongation, causes shoots to grow up and roots to grow down, and inhibits the growth of lateral shoots.
他们发现，蝾螈再生是从一团被称为芽基的细胞在断肢顶端形成的时候开始的。
They found that salamander regeneration begins when a clump of cells called blastema forms at the tip of a lost limb.
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