Immunological analysis of apolipophorin-III in the haemolymph, ovaries, and testes of the fall webworm, Hyphantria cunea (Drury)
1996
Yun, H.K. | Kim, H.R.
Apolipophorin-III (apoLp-III) was purified from the haemolymph of adult Hyphantria cunea (Drury) by KBr density gradient ultracentrifugation, gel filtration (Sephadex G-100) and ion exchange chromatography (CM-52), and its characteristics, molecular weight, tissue distribution, and sites of synthesis were examined. Molecular weight of apoLp-III was estimated to be 18 kDa. By electrophoretic analysis on 10% gels of male and female haemolymph from diverse developmental stages, apoLp-III was shown to be present in all stages. Western blotting was carried out to show that purified free apoLp-III is identical to apoLp-III associated with adult lipophorin. Immunological analysis also showed that apoLp-III is present in the ovary and the testis and in the case of testis, apoLp-III is heavily accumulated in the cyst. ApoLp-III is synthesized in larval and adult fat body but not in adult testis. Autoradiography following incubation of [14C]apoLp-III with testis showed that apoLp-III was taken up into testis.
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