Sources of alcohol dehydrogenase (NAD+-linked) in the cockroach, Leucophaea maderae

Abstract

The activity of alcohol dehydrogenase (NAD+-linked) in symbionts, and normal and aposymbiotic fat bodies of the (Madeira) cockroach, Leucophaea maderae, revealed the following: (1) highest concentrations of the enzyme in symbiont materials; (2) lowest concentrations of the enzyme in aposymbiotic fat bodies; (3) comparable concentrations of the enzyme in similar types of fat bodies; (4) possible symbiont contribution of the enzyme to normal insects; and (5) probable inhibition of the symbiont enzyme synthesis in normal tissues.