Summary
Injection of azadirachtin into young Vth (=last) instarLocusta hoppers inhibits molt and a considerable portion of the animals survice for more than 40 days as ‘over-aged nymphs’; in contrast, the duration of the Vth instar is 8–10 days in normal controls. Males of over-aged nymphs exhibit adult sexual behavior, and injection of juvenile hormone intensifies this behavior. The results demonstrate that the ‘terminal’ molt leading to morphogenetic adult differentiation is not necessary for an adult behavioral pattern to develop, and/or to become overt, in a hemimetabolous insect.
This is a preview of subscription content, log in via an institution to check access.
References
Butterworth, J.H., and Morgan, E.D., J. Insect Physiol.17 (1971) 969.
Zanno, P.R., Miura, I., Nakanishi, K., and Elder, D.L., J. Am. chem. Soc.97 (1975) 1975.
Nakanishi, K., Rec. Adv. Phytochem.9 (1975) 283.
Gill, J.S., and Lewis, C.T., Nature232 (1971) 402.
Ruscoe, C.N.E., Nature New Biol.236 (1972) 159.
Warthen, J.D. Jr, Redfern, R.E., Uebel, E.C., and Mills, G.D. Jr, USDA, Agric. Res. Results, Northeastern Ser., No. 1 (1978).
Redfern, R.E., Warthen, J.D. Jr, Mills, G.D. Jr, and Uebel, E.C., USDA, Agric. Res. Results, Northeastern Ser., No. 5 (1979).
Rembold, H., and Schmutterer, H., in: Regulation of Insect Development and Behaviour, vol. 2, p. 1087. Eds F. Sehnal, A. Zabza, J.J. Menn and B. Cymborowski, Wroclaw Techn. Univ. Press, Wroclaw 1981.
Kubo, I., and Klocke, J.A., Agric. biol. Chem.46 (1982) 1951.
Rembold, H., Sharma, G.K., Czoppelt, Ch., and Schmutterer, H., Z. ang. Ent.93 (1982) 12.
Sieber, K.-P., and Rembold, H., J. Insect Physiol.29 (1983) 523.
Rembold, H., and Sieber, K.-P., Z. Naturforsch., Ser. C36 (1981) 466.
Redfern, R.E., Kelly, T.J., and Hayes, D.K., in: Juvenile Hormone Biochemistry, p. 415. Eds G.E. Pratt and G.T. Brooks. Elsevier/North Holland, Amsterdam 1981.
Lazaroviçi, P., and Pener, M.P., Gen. comp. Endocr.33 (1977) 434.
Pener, M.P., Troetschler, R., Fridman-Cohen, S., Zeldes, I., Nassar, S.G., and Staal, G.B., in: Regulation of Insect Development and Behaviour, vol. 1, p. 357. Eds F. Sehnal, A. Zabza, J.J. Menn and B. Cymborowski. Wroclaw Techn. Univ. Press, Wroclaw 1981.
Wajc, E., and Pener, M.P., Israel J. Zool.18 (1969) 179.
Pener, M.P., in: Proc. Int. Study Conf. Current Future Problems Acridology, p. 135. Eds C.F. Hemming and T.H.C. Taylor. Centre for Overseas Pest Research, London 1972.
Pener, M.P., Fridman-Cohen, S., and Levy, A., in: Juvenile Hormone Biochemistry, p. 323. Eds G.E. Pratt and G.T. Brooks. Elsevier/North Holland, Amsterdam 1981.
Cantacuzène, A.-M., and Girardie A., C.R. hebd. Seanc. Acad. Sci. Paris, Ser. D270 (1970) 2465.
Miall, R.C., J. Insect Physiol.26 (1980) 607.
Kutsch, W., in: Physiology and Biophysics of Insect Flight, Special Aspects II. p. 71. Ed. W. Nachtigall. Biona Report 2. Fischer-Verlag, Stuttgart 1983.
Pener, M.P., Acrida5 (1976) 189.
Author information
Authors and Affiliations
Additional information
We thank Prof. H. Rembold for a generous gift of azadirachtin and Mr Y. Toren for keeping the locust culture.
Rights and permissions
About this article
Cite this article
Shalom, U., Pener, M.P. Sexual behavior without adult morphogenesis inLocusta migratoria. Experientia 40, 1418–1420 (1984). https://doi.org/10.1007/BF01951921
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF01951921