Abstract
The transparent accessory reproductive gland of Rhodnius prolixus synthesizes and accumulates a variety of polypeptides. Ouchterlony immunodiffusion demonstrates that the hemolymph contains proteins which react with polyclonal antibodies against extracts of transparent accessory glands. Accessory glands and hemolymph contain a 170 kDa polypeptide with similar mobility on SDS-polyacrylamide gel electrophoresis. This polypeptide reacts with antibodies against extracts of accessory glands. Surgical removal of the accessory glands prevents the appearance of the 170 kDa polypeptide in the hemolymph. In vivo labeling of accessory gland proteins with a mixture of [ 14C]amino acids demonstrates that the newly synthesized TARG polypeptide appears in the hemolymph between days 2 and 3 after feeding. It is concluded that a specific polypeptide which is synthesized in the transparent accessory gland is exported to the hemolymph.
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