Electrophysiological and behavioral responses of pea weevil Bruchus pisorum L. (Coleóptera: Bruchidae) to volatiles collected from its host Pisum sativum L
作者： Ricardo Ceballos , Natalí Fernández , Sharon Zúñiga , Nelson Zapata
DOI: 10.4067/S0718-58392015000200009
关键词:
摘要: The pea weevil (Bruchus pisorum L.) (Coleoptera: Bruchidae) is one of the most damaging pests (Pisum sativum We investigated role volatiles on electrophysiological and behavioral response B. using electroantennography (EAG) olfactometry bioassays. Plant emitted at different phenological stages were collected in situ by headspace Porapak Q traps analyzed through gas chromatography coupled to mass spectrometry (GC-MS). Most abundant identified all terpenes green leaf volatiles. All tested volatile extracts elicited significant EAG responses both male female pisorum, with females exhibiting a greater (1.35 mV) than males (1.02 pea-pod Volatiles from each stage stimulated an attractant olfactometer bioassay. A larger attraction was observed pods over other (P < 0.001). These results suggest relative importance cues plant mediating host location pisorum. This work showed that can discern between P. based those chemical cues.
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