• P M Chandrashekar

      Articles written in Proceedings – Animal Sciences

    • Glycogen level and glycogen phosphorylase activity in the eggs of silkwormBombyx mori L.

      P M Chandrashekar Geetha Bali

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      The glycogen content of the eggs of silkwormBombyx mori L. was analysed at intervals during the course of embryonic development and diapause. Changes in the glycogen levels were also examined in acid treated eggs in which diapause has been broken. These studies showed significant differences in glycogen utilisation pattern in the diapause and non-diapause eggs. The activity of the enzyme glycogen phosphorylase was also found to exhibit different patterns in the two types of eggs. Our studies indicate that this enzyme plays an important role in the metabolic changes which occur during diapause in silkworm eggs.

    • Polyol dehydrogenases in the eggs of the silkwormBombyx mori L.

      Geethabali P M Chandrashekar

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      Activities of some of the dehydrogenases involved in the formation of polyols were examined in diapause, non-diapause and acid treated artificial non-diapause eggs. The studies revealed that NADP-SDH may be important in the production of sorbitol during the onset of diapause and that NAD-GPDH may be playing a more important role than NADP-GDH in the production of glycerol.

    • Glycerol formation in silkworm eggs

      Geethabali P M Chandrashekar

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      The temporal pattern of accumulation of glycerol was examined during the early diapause period in silkworm eggs. Studies on the activities of two important enzymes viz. NADP-dependent glycerol dehydrogenase and NADP-dependent glycerol phosphate dehydrogenase showed that the latter may be more important than the former in the production of glycerol during diapause in silkworm eggs.

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