Miscel·lània Zoològica. Volumen 12 (1988) Páginas: 121-124

Acción gonadotrófica de la hormona juvenil en hembras de Blattella germanica alatectomizadas o sometidas a ayuno prolongado

Piulachs, M. D.

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Resumen

Gonadotrophic action of juvenile hormone III on females of Blattella germanica either allatectomized or long-term starved
In Blattella germanica both, starvtion and allatectomy, determine an inhibition of oocyte development that can be corrected by a topical application of the gonadotrophic hormone of this species, juvenile hormone III (JH III). While a single dose of 10 µg of JH III is enough to induce for allatectomized females a normal gonadotrophic cycle, two doses of 10 µg administered according to a physiological pattern are necessary for starved females. The results obtained suggest that stawation in B. germanica induces a dual effect on vitellogenesis, i.e. determining a low concentration of nutrients (thus making more difficult the vitellogenin synthesis), and inducing a low activity on the corpora allata (which release JH at lower rates).

Palabras clave

Blattella germanica, Juvenile hormone, Starvation, Allatectomy

Cita

Piulachs, M. D., 1988. Acción gonadotrófica de la hormona juvenil en hembras de Blattella germanica alatectomizadas o sometidas a ayuno prolongado. Miscel·lània Zoològica, 12: 121-124

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