the following aspects are discussed in relation to the cellular and subcellular localization of steroid metabolism in the rat testis : ( 1 ) the localization of enzyme activities for steroid production in interstitial tissue and seminiferous tubules in intact cells and in isolated mitochondrial fractions : ( 2 ) steroid production by isolated cellular and subcellular fractions and by the intact testis in vivo ;
C0036630
seminiferous
C0039597
testis