Abstract
The identification of prothoracicotropic hormone (PTTH) activity in Lymantria (Kelly et al., 1986; Masler et al., 1986) verified the existence of a molt/metamorphosis-regulating brain secretory factor, first postulated by Kopec (1922). Since Kopec’s discovery, this factor has received considerable attention in post-embryonic stages of Bombyxmori (Ishizaki et al., 1987) and Manduca sexta (Flanagan et al., 1988). Recently, PTTH activity was demonstrated in embryonic stages of Bombyx and Manduca (Chen et al., 1987; Fugo et al., 1987; Dorn et al., 1987). We have demonstrated similar activity in embryonic eggs of Lymantria (see also Bell et al., Masler et al. and Thyagaraja et al., this volume).
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References
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Kelly, T.J. et al. (1990). Prothoracicotropic Hormone and Ecdysteroid Ketoreductase from Pre-Hatch Eggs of the Gypsy Moth, Lymantria Dispar . In: Borkovec, A.B., Masler, E.P. (eds) Insect Neurochemistry and Neurophysiology · 1989 ·. Experimental and Clinical Neuroscience. Humana Press. https://doi.org/10.1007/978-1-4612-4512-4_43
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DOI: https://doi.org/10.1007/978-1-4612-4512-4_43
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