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Chemoreception and adaptation (CREA)


Chemical lanscape of agro-biocoenosis : case study of broad Faba bean and its specialized pest Bruchus rufimanus

The Broad Bean Weevil (BBW) is a serious pest of the Broad Bean in Europe damaging the beans and decreasing the commercial value.
Little is known on the biology and ecology of the pest and its relations with the faba bean plant.

To apprehend the semiochemical signals involved in the processus of host plant colonisation, after a behavioural study, Brigitte FREROT, IR INRA, Centina PINIER, T INRA, et Ené LEPPIK, Post doc at that time, in CREA team in ECOSENS department in Versailles (78), collected headspace samples of volatile organic compounds (VOC) emitted by the faba beans in the field.
The VOCs released by the different physiological stages of the plant were collected by SPME and analysed by Gas Chromatography–Mass Spectrometry (GC-MS).

The first results showed that it is possible to develop an attractant for BBWusing the data of identification.

New of the INRA center in Versailles (78)

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