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Synthesis of apolar esters by ovaries of the cockroach Periplaneta americana






General and Comparative Endocrinology 70(1): 74-82

Synthesis of apolar esters by ovaries of the cockroach Periplaneta americana

Ecdysteroid levels detected by RIA in extracts of mature ovaries from P. americana increased about 4-fold (from 53 to 184 ng/g) on treatment with Helix pomatia 'sulphatase' enzymes. HPLC analysis showed that this increase in immunoreactivity resulted from the hydrolysis of 6 apolar compounds that cochromatographed with the ecdysteroid esters present in newly laid oothecae (A1, A2, A3, A4, A5 and A6).


Accession: 001962543



Related references

Slinger, A.J.; Isaac, R.E., 1988: Synthesis of apolar ecdysone esters by ovaries of the cockroach Periplaneta americana. Ecdysteroid levels detected by RIA in extracts of mature ovaries from Periplaneta americana increased approximately fourfold (53 +/- 10 to 184 +/- 38 ng/g; +/- SEM, n = 3) on treatment with Helix pomatia "sulphatase" enzymes. HPLC analys...

Xian, Xingfu., 1998: Effects of mating on oviposition, and possibility of parthenogenesis of three domestic cockroach species, the American cockroach, Periplaneta americana; the smoky brown cockroach, Periplaneta fuliginosa; and the German cockroach, Blattella germanica. Periplaneta americana, P. fuliginosa and B. germanica were used to determine the effect of mating on oviposition and the possibility of parthenogenesis. In comparison with mated females, unmated females of P. americana and P. fuliginosa had a long...

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