• M A Hooli

      Articles written in Proceedings – Animal Sciences

    • Steroidogenic cells in the testis of larva, pupa and adult eri silkworm,Philosamia ricini—A histochemical study

      H K Hurkadli M A Hooli V B Nadkarni

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      The testis formed of 4 follicles develops as a definitive organ on the first day of IV instar. The localization of Δ5-3β-hydroxysteroid dehydrogenase. 17β-hydroxysteroid dehydrogenase and 11β-hydroxysteroid dehydrogenase, was limited to peritoneal sheath and epithelial layer of the testis of IV and V instar larva. From 3rd day of pupation upto the 8th day of pupation the enzyme activity extended to the cysts containing spermatogonical cells, primary and secondary spermatocytes and subsequently to the spermatids and spermatozoan bundles from 9th day of pupation and continued thereafter in the adults. Glucose-6-phosphate dehydrogenase activity was observed in all the testicular components during larval, pupal and adult stages. These results indicate that the developing and adult testis of eri silkworm,Philosamia ricini has the ability to metabolize hydroxysteroids.

    • Hydroxysteroid dehydrogenases in the ovary of larva, pupa and adult eri silkworm,Philosamia ricini (Hutt.)—A histochemical study

      H K Hurkadli M A Hooli

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      Histochemical analysis of the various developmental stages ofPhilosamia ricini showed the presence of Δ5-3β-hydroxysteroid dehydrogenase, 17β-hydroxysteroid dehydrogenase, 11β-hydroxysteroid dehydrogenase and glucose-6-phosphate dehydrogenase in the lamellar epithelial cells, precursors of oocytes, nurse cells and follicle epithelial cells of the germarium of larva and pupa, oocyte-nurse cells complex, follicle epithelial cells of immature and mature follicles and intermediate cells of pupa suggesting that these tissues are able to metabolize Δ5-3β-hydroxysteroids, 17β-hydroxysteroids and 11β-hydroxysteroids to corresponding ketosteroids.

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