Nitrogen Metabolism in the Haemolymph of  Silkworm Bombyx Mori L During the Progress  of Fungal Pathogen Beauveria Bassiana (Bals)  Vuill

Keerthi Rajitha; Ganta Savithri

Volume : II, Issue : V, May - 2013

Nitrogen Metabolism in the Haemolymph of Silkworm Bombyx Mori L During the Progress of Fungal Pathogen Beauveria Bassiana (Bals) Vuill

Keerthi Rajitha, Ganta Savithri

Abstract :

Day to day changes in the levels ammonia, uric acid and urea were examined in the haemolymph of 5th instar silkworm Bombyx mori L during the progress of fungal pathogen Beauveria bassiana. Significant reduction of ammonia content was recorded from 3rd day of induction of fungal pathogen till the end of the instar (25.95 �g/ml to 28.84 �g/ml) in experimental larvae compared to control (29.49 �g/ml to 35.49 �g/ml). No significant change was observed in the uric acid content till the 3rd day of fungal infection (33.22 �g/ml to 38.77 �g/ml) and then significant elevation of uric acid levels was observed from 4th day to 6th day of inoculation in 5th instar silkworm larvae (41.54 �g/ml to 48.37 �g/ml) compare to control (39.33 �g/ml to 44.49 �g/ml). Significant elevation of urea content was recorded from the 4th day to 6th day of induction of fungal pathogen (16.55 �g/ml to 16.03 �g/ml) with reference to control (13.59 �g/ml to 12.74 �g/ml)