electron-microscopic studies of the gth-cells revealed that gth and testosterone in intact animals , and testosterone in castrated fish , caused gth-cell maturation : these cells now displayed the same appearance as gth-cells in adult trout , including the presence of globules , a well-developed golgi apparatus and rough endoplasmic reticulum , all of which were absent in gth-cells of control animals .
C0230779
rough endoplasmic reticulum
C0007634
cells