Enzyme histochemistry of the mesocoxal muscles of Periplaneta americana

Cell and Tissue Research
D R StokesC R Morgan

Abstract

Histochemical techniques have been employed to characterize enzymatic activity in the mesocoxal muscles of the cockroach, Periplaneta americana. Through our studies of the enzymes myosin-ATPase, NADH reductase, succinic dehydrogenase (SDH), and lactic dehydrogenase (LDH), we were able to classify fibers within these muscles according to criteria established for muscle fibers of vertebrates. Many of the mesocoxal muscles possess two different and distinct populations of fibers, whereas the remaining muscles are homogeneous with respect to their constituent fibers. The data presented here indicate biochemical heterogeneity for muscles of differing structural and functional features and possible neurotrophic influences upon oxidative enzymes and myosin-ATPase isozymes.

Related Concepts

Vertebrates
Enzymes, antithrombotic
Adenosine Triphosphatases
Succinate Dehydrogenase
Blattaria
NADH
Enzymes for Treatment of Wounds and Ulcers
Allergy Testing Cockroach
Muscle Fibers
Muscle

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