Structural and Ultra structural study of vertebral column cartilage tissue in Persian sturgeon (Acipenser persicus)

As important of cartilage tissue in sturgeons, for this study cartilage tissue of vertebral column of 40 days, one and 4 years old of Persian sturgeon, after preparation were fixed in buen fixative and 4% Buffered Glutaraldehyde and then they have been provided to pass the other histological procedure for study under light and electrom microscopic study. Study of cartilage tissue of vertebral column of Persian sturgeon showed prichondrium, chondroblast and chondrocyte are the structure of it and a large number of mature cells have origin and the same lacunae. In ultra structural study of cartilage cells chondroblasts have more aggregation inter cellular organell than to the chondrocytes. This finding in 40 days, than to the one and 4 years old of Persian sturgeon was clear but all of them have no smooth membrane. Because there is not any study on cartilage tissue in Persian sturgeon this study was done.