Abstract
ADULTS of the red locust Nomadacris septemfasciata which emerge in late summer and autumn undergo a lengthy imaginal diapause under natural conditions, and remain sexually immature until the following spring1. Diapause is brought about by a seasonal decrease in day-length, and can be induced in the laboratory by controlling the photoperiod under which the locusts emerge2. Because the development of the gonads in locusts is clearly dependent on the secretions of the cerebral endocrine glands3,4, the arrested sexual maturation in diapausing females of N. septemfasciata may be under endocrine control. This communication reports the results of a preliminary histological investigation into the endocrine control of diapause in the red locust.
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References
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STRONG, L. Endocrinology of Imaginal Diapause in the Female Red Locust, Nomadacris septemfasciata (Serv.). Nature 212, 1276–1277 (1966). https://doi.org/10.1038/2121276a0
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DOI: https://doi.org/10.1038/2121276a0
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