Action of the Prothoracic Gland on the Insect Integument in Vitro

書誌事項

公開日
1972
DOI
  • 10.1303/aez.7.71
公開者
日本応用動物昆虫学会

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説明

The prothoracic glands taken from 6-day-old larvae in the final instar of the cabbage armyworm (Mamestra brassicae L) were well maintained for considerably long term in vitro.It was ascertained that these prothoracic glands relased hormonal agent which induces the moulting of the integument of the diapausing rice stem borer (Chilo suppressalis WALKER)larvae in media such as CSM-2F, Grace's medium and Ringer-Tyrode's solution. The prothoracic glands from the diapausing pupae of the cabbage armyworm, however, did not show any activity to initiate the moulting of Chilo-integuments. The homogenates of active prothoracic glands did not indicate the moulting function in vito. The hormonal agent released from the active prothoracic glands was acetone soluble and heat stable (90°C, 10min). The implication of these results were discussed.

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