Head critical period and juvenile hormone titre during the last larval instar of the cockroach,Periplaneta americana |
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| Authors: | K Richter G -A Böhm H Rembold |
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| Institution: | (1) Forschungsgruppe Prof. Dr. H. Penzlin, Sächsische Akademie der Wissenschaften zu Leipzig, Postfach 100322, D-07703 Jena, (Germany);(2) Max-Planck-Institut für Biochemie, D-82152 Martinsried, (Germany) |
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| Abstract: | From neck ligation experiments with last instar larvae of the cockroachPeriplaneta americana it was concluded that the head critical period is reached around day 17, which corresponds to 59% of the last larval stage. At the same stage the juvenile hormone III titre in the hemolymph dropped to undectable levels. |
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| Keywords: | Head critical period juvenile hormone moult regulation Periplaneta americana |
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