Ammonia utilization by the bruchid beetle,Caryedes brasiliensis [Bruchidae]
- 1 April 1985
- journal article
- research article
- Published by Springer Nature in Journal of Chemical Ecology
- Vol. 11 (4), 539-544
- https://doi.org/10.1007/bf00989564
Abstract
The seed predator,Caryedes brasiliensis [Bruchidae] generates appreciable ammonia in its dietary use and detoxification ofl-canavanine and its catabolic product,l-canaline.l-Canavanine is a toxic allelochemical ofDioclea megacarpa seeds, the food of the developing larvae. Bruchid beetle larvae rely upon glutamic acid dehydrogenase and glutamine synthetase to use ammonia for glutamic acid synthesis from 2-oxoglutaric acid and conversion of the former to glutamine. These reactions provide the larvae with a means for metabolically eliminating ammonia. Proline serves as a carbon skeleton source for glutamic acid formation.Keywords
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