Abstract
Summary
Under uniform conditions of age, sex and environment, the concentration of the specific enzyme, amylase, present in mouse submaxillary-sublingual glands varies with the strain, the amounts being (amylase activity expressed as mg of reducing sugar/mg wet tissue) CFW, .15 mg; C3H, .19 mg; C57BL/6, .14 mg; and DBA/1, .10 mg. The characteristic amylase level is probably not the result of genetic differences in amount of connective tissue or number of ducts and acini in glands of the several strains as histological examination of representative tissues of each mouse strain shows no significant differences. Thus, the submaxillary gland amylase level for each strain is genetically determined.
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