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J Chem Ecol


Title:"Dorsal abdominal glands in nymphs of southern green stink bug,Nezara viridula (L.) (heteroptera: Pentatomidae): Chemistry of secretions of five instars and role of (E)-4-oxo-2-decenal, compound specific to first instars"
Author(s):Pavis C; Malosse C; Ducrot PH; Descoins C;
Address:"Laboratoire de Recherches en Productions vegetales, Institut National de la Recherche Agronomique, B. P. 1232, 97185, Pointe-a-Pitre Cedex, France (F. W. I.)"
Journal Title:J Chem Ecol
Year:1994
Volume:20
Issue:9
Page Number:2213 - 2227
DOI: 10.1007/BF02033198
ISSN/ISBN:0098-0331 (Print) 0098-0331 (Linking)
Abstract:"We investigated the exocrine secretions from the five nymphal instars in the southern green stink bug,Nezara viridula, by analyzing separately the contents of the three dorsal abdominal reservoirs. All DAGs 1 produced a mixture of five alkanes with 12, 13, 14, 15, and 16 carbons. No differences were found between DAGs 2 and DAGs 3, for the five instars: the glands of first instars produce the same alkanes as DAGs 1,n-tridecane, traces of (E)-2-decenal, and a specific compound: (E)-4-oxo-2-decenal. In the other instars (second to fifth), (E)-4-oxo-2-decenal is absent from the secretion but another compound is present: (E)-4-oxo-2-hexenal. The kinetics of production of the different compounds were studied, the maximum amounts produced occurring 36 hr after hatching. The biological function of (E)-4-oxo-2-decenal was investigated. Using olfactometry, we showed that this compound acts as an attractant and an arrestant on second instars, at physiological doses. Moreover, this semiochemical was shown to be repellent to the fire-antSolenopsis geminata, a potential predator ofN. viridula and we established the dose-response curve for the repellent activity"
Keywords:
Notes:"PubMed-not-MEDLINEPavis, C Malosse, C Ducrot, P H Descoins, C eng 1994/09/01 J Chem Ecol. 1994 Sep; 20(9):2213-27. doi: 10.1007/BF02033198"

 
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