| Popis: |
Histochemical staining methods for SDH activity, total myofibrillar ATPase and the pH lability of myosin ATPase isoforms is in accord with biochemical analyses of contractile and regulatory protein assemblages in demonstrating that two slow fibre subtypes exist in the abdominal superficial muscles of the Norway lobster. Furthermore, there is a correlation between these fibre subtypes and the pattern of their motor innervation. This conjunction of experimental results from three distinct approaches identifies the lobster superficial flexor muscle as a ‘pioneer system’ in which to examine the development and plasticity of muscle fibre types at the level of identified motor neurones and individual muscle fibres, and in terms of the expression of genes for particular muscle proteins. |
