Health & Environmental Research Online (HERO)


Print Feedback Export to File
7730977 
Journal Article 
1-Phenyl-2-pentanone and methyl salicylate: new defense allomone components and their content shift during ontogenetic development of the millipede Nedyopus tambanus mangaesinus (Polydesmida: Paradoxosomatidae) 
Kuwahara, Y; Morita, M; Ichiki, Y; Tanabe, T; Asano, Y 
2017 
Yes 
Applied Entomology and Zoology
ISSN: 0003-6862 
Springer Tokyo 
52 
3 
447-455 
English 
WOS:000406291000010 
Twelve components were identified in hexane extracts of the polydesmid millipede Nedyopus tambanus mangaesinus (Attems, 1909) and their contents were examined at all stadia of ontogenetic development including two adult conditions (before and after hibernation). Two compounds, 1-phenyl-2-pentanone and methyl salicylate, were newly identified as components of the millipede together with six well-known polydesmoid compounds (benzaldehyde, benzyl alcohol, benzoic acid, benzoyl cyanide, mandelonitrile, and mandelonitrile benzoate) and four phenols (phenol, p-cresol, 2-methoxyphenol, and 2-methoxy-4-methylphenol). Benzaldehyde and benzoyl cyanide were distributed from nymphs at stadium I, and other components started to become detectable at more advanced stadia. The largest content (35.1%) of methyl salicylate was detected in nymphs at stadium I, together with benzaldehyde and benzoyl cyanide, implying the reinforcement of defensive functions during or after egg emergence. The content (18.8%) of 1-phenyl-2-pentanone reached a maximum in hibernated females among all stadia and conditions. Its female-biased distribution at the mating season (ca. 5.7-fold more than in males) implies its sexually related functions. © 2017, The Japanese Society of Applied Entomology and Zoology. 
Nedyopus tambanus mangaesinus; 1-Phenyl-2-pentanone; Methyl salicylate; Polydesmid millipede; Defense allomone