Volume : IV, Issue : III, March - 2014

Proteolysis–Triggered Muscular Atrophy in The Abdominal Segments of The Silkworm, Bombyx Mori During Pupal–Adult Metamorphosis

Sivaprasad, S

Abstract :

The metamorphic changes in the musculature of the third (AS–3) and seventh (AS–7) abdominal segments were studied in Bombyx mori. During pupal development the abdominal musculature undergoes degeneration to the extent of ~95% in AS–3 and ~77% in AS–7. The persisting pupal musculature includes 9 dorsal internal median muscles (DIM), 4 dorsal lateral internal muscles (DIL), 8 ventral internal median muscles (VIM), 8 ventral internal lateral muscles (VIL), 4 ventral external median muscles (VEM), 6 ventral external lateral muscles (VEL), 21 sternocoxal muscles (SCM) 6 spiracular muscles (SM), 18 tergopleural muscles (TPM) in AS–3 and 7 DIM, 3 DIL, 3 VIM, 5 VEM, 5 VIL, 3 SM and 3 pleurosternal muscles (PSM) in AS–7. Similarly, the persisting adult musculature includes 4 VIM, 4 VIL and 3 DIL in AS–3 and 6 DIM, 6 DIL, 2 VIM, 2 VIL and 3 TPM in AS–7. The muscular atrophy is discussed with reference to the ongoing proteolytic activity.  

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Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

Sivaprasad, S Proteolysis-Triggered Muscular Atrophy in The Abdominal Segments of The Silkworm, Bombyx Mori During Pupal-Adult Metamorphosis Indian Journal of Applied Research, Vol.IV, Issue. III

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