| 1. | 4 . e2 triggers directly spermatogenesis through genomic action and effects the steriodogenesis of interstitial cell by negative feedback via follicular cells
在两栖动物， e _ 2可能也通过支持细胞对间质细胞的功能进行负反馈调节，进而影响t的产生。 |
| 2. | 5 . p and pr probably exert roles during the period of sperm development . p in follicular cells regulates spermiation and sperm maturation
P和pr与精子的发生和成熟密切相关， p可能参与支持细胞与精子之问的信息传递，也可能直接参与精子的成熟调节。 |
| 3. | C - fos probably regulates the steriodogenesis of interstitial cells directly and effects the communication of information between follicular cells and germocytes . e2 probably induces the activity of c - fos in testis . the concentration of t is correlated with the express of c - fos
C厂os产物还可以直接作用于问质细胞调控其产生类固醇激素，并参与支持细胞与生精细胞的信息传递的含量与c fos的表达也有直接关系。 |
| 4. | However , kit protein doesn " t exist in oogenesis after birth . there are also c - myc positive protein granules in the spermatomeres from metaphase i to telophase ii , in the spermatozoa and in the secretory cells of the spermatheca . c - myc protein expresses not in the normal follicles , but in the follicular cells of the apoptotic ones
Myc在处于减数分裂的中期至末期的精母细胞的细胞质或细胞核内呈阳性表达，在减数分裂后形成的精细胞和受精囊囊壁的上皮细胞的细胞质内也有阳性表达：但在出生后的卵子正常发生过程中无阳性表达，然而在凋亡卵泡的滤泡细胞的细胞质内有阳性表达。 |
| 5. | It requires further investigation whether spermatogonial proliferation starts in november . 3 . interstitial cells synthesize t in spring and autumn , its spermatogonial proliferation independent on the levels of t . t in the follicular cells in the testis of rana quadranus regulate sperm maturation by paracrine mechanism
隆肛蛙因对寒冷的气候很敏感，在外界活动的时间短，使其从精原细胞到成熟精子发育的时间很短，精原细胞很快增殖并进行成熟分裂而成为成熟精子。 |
