Environmental stress-induced testis differentiation: Androgen as a by-product of cortisol inactivation

- We summarize the effects of some environmental factors known in fish.
- Glucocorticoid and androgen present a cross talk in male reproductive development.
- Masculinization induced by environmental factors could be considered as a collateral effect of stress.
- 11β-Hydroxysteroid dehydrogenase may be the main transducer between stress and masculinization.