Maturation and responsiveness to extracts of corpora allata from male Locusta migratoria containing allatotropic factors.

نویسندگان

  • E Lehmberg
  • H J Ferenz
  • S W Applebaum
چکیده

Corpora allata (CA) from male Locusta migratoria were tested for their ability to synthesize juvenile hormone (JH) and to respond to stimulating brain/corpora cardiaca (CC)-extracts under in vitro conditions. We found that a preincubation of the CA of both sexes at 4 degrees C for 24 h lowers their basal rate of synthesis and retains their responsiveness to allatotropic factors. Male CA can be stimulated by brain/CC extracts as well as female CA. JH biosynthesis stimulating factors are also present in male brain/CC extracts. Thus such extracts from male locusts can be used for the isolation of locust allatotropin. Furthermore male locust CA are appropriate for bioassaying such allatotropic factors.

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عنوان ژورنال:
  • Zeitschrift fur Naturforschung. C, Journal of biosciences

دوره 47 5-6  شماره 

صفحات  -

تاریخ انتشار 1992