| Abstrakt: |
The morphology of the male reproductive system of Rhyacionia buoliana (Schiffermüller), the European pine shoot moth, and the process of spermatogenesis are described. Spermatozoa were first observed in 2-day pupae and the reproductive system was fully formed in 11-day pupae. The gonadal tissue of males irradiated with 36,000 and 54,000 rad as 11-day pupae and as adults was compared with that of untreated individuals. Irradiation caused increased tracheolation of the testicular epithelium, thickening of the walls of the seminal vesicles, dispersion of the spermatocytes from their peripheral location, degeneration of sperm bundles, and vacuolation of the testes. |
