this result may explain why cyclic amp stimulates stalk cell formation in low-density monolayers in the presence of suboptimal levels of dif , following preincubation in the presence of saturating levels of cyclic amp ( l. kwong , a. sobolewski , and g. weeks , 1988 , differentiation 37 , 1-6 ) .
C0007634
cell
C0007589
differentiation