Revistes Catalanes amb Accés Obert (RACO)

Inici de la incorporació de Vitel·logenina als Oòcits de Blattella Germanica durant el primer cicle reproductiu

Blanca Benito, Xavier Bellés i Ros


Trypan blue, a vital dye which has been shown to be a reliable indicator of the vitellogenesis, was injected into the cockroack BLattetta germànica in order to determine at what time
the vitellogenin was taken up by developing oocytes. The study was carried out with virgin females of different ages during the first reproductive cycle and the results showed that the uptake of trypan blue occurred between the day 2 and 3 after the adult molt. Theonset of dye uptake correspond with previouslyreported events in the synthesis of juvenit hormone by the corpora ttata.

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