Hydrocarbons in Haemolymph from Healthy and Diseased Japanese Beetle Larvae
نویسندگان
چکیده
The hydrocarbons in extractable lipids of haemolymph from healthy and diseased larvae of the Japanese beetle (Popillia japoniea) have been characterized. Haemolymph contains at least 21 saturated hydrocarbons having from 21 to 27 carbon atoms. Normal, monomethyl-branched, and dimethylbranched alkanes with even and odd carbon numbers were identified. Tricosane (12%), ll-methyltricosane (19%), 9,13-dimethyltricosane (27%), and 11-methylpentacosane (11 %) are the major hydrocarbons. Haemolymph from third instar larvae contains at least six minor hydrocarbons that could riot be obtained in sufficient quantities for structure identification. The total amount of hydrocarbons per ml is reduced in haemolymph from larvae infected with Bacillus popilliae; however, the relative concentration of each hydrocarbon is not significantly changed as a result of infection.
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