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Temporal storage of kynurenine and 3-OH-kynurenine in the fat body of metamorphosingEphestia kühniella

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Summary

During the pharate pupal stage a massive accumulation of kynurenine and 3-OH-kynurenine is observed in the fat body ofEphestia kühniella. By injection it can be demonstrated that this organ is capable of sequestering at least 3-OH-kynurenine, the dominating tryptophan metabolite inEphestia. It is suggested that the fat body reduces a possibly harmfull excess of tryptophan metabolites at the beginning of metamorphosis. These sequestered metabolites provide a precursor depot for ommochrome synthesis in later development.

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Authors and Affiliations

  1. Lehrstuhl für experimentelle Morphologie, Zoologisches Institut der Universität zu Köln, Weyertal 119, D-5000, Köln 41, Federal Republic of Germany

    K. Cölln & Eva Hedemann

Authors
  1. K. Cölln
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  2. Eva Hedemann
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Cölln, K., Hedemann, E. Temporal storage of kynurenine and 3-OH-kynurenine in the fat body of metamorphosingEphestia kühniella. Experientia 38, 1327–1329 (1982). https://doi.org/10.1007/BF01954931

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  • DOI: https://doi.org/10.1007/BF01954931

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