Juvenile hormone and the control of adult diapause in the Colorado potato beetle,Leptinotarsa decemlineata |
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| Institution: | 1. The Key Laboratory of Forest Protection, State Forestry Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China;2. United States Department of Agriculture, Agricultural Research Service, Beneficial Insects Introduction Research Unit, Newark, DE 19713, USA;1. Sydney Institute of Agriculture & School of Life and Environmental Sciences, The University of Sydney, Eveleigh, NSW 2015, Australia;2. School of Biological, Earth and Environmental Sciences, Faculty of Science, UNSW Sydney, Kensington, NSW 2052, Australia;3. Department of Agricultural Resources and Environment, Nanjing University of Information Science and Technology, Nanjing 210044, China;4. Landcare Research, Riddet Road, Massey University Campus, Palmerston North 4442, New Zealand |
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| Abstract: | One of the major hormonal events preceding environmentally controlled diapause in the Colorado potato beetle, Leptinotarsa decemlineata, is the inhibition of the corpora allata. This paper reviews briefly the data developed by our laboratory on the role of the neuroendocrine system in the control of the corpus allatum. In addition, we demonstrate that during transport in the hemolymph JH is bound to a JH-III specific binding protein. The JH-binding sites of this protein have a high affinity for JH-III and display stereoselectivity. New data are presented showing that, in beetle hemolymph, JH-III specific binding occurs with the lipophorin fraction. |
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