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Feeding behaviour of the planthopper Peregrinus maidis on maize analysed by digital signal processing of EPG and MET structure of stylet pathway

Reynaud Bernard, Gargani Daniel, Lecoq Julien, Turpin Patrick, Grondin Martial, Peterschmitt Michel. 2004. Feeding behaviour of the planthopper Peregrinus maidis on maize analysed by digital signal processing of EPG and MET structure of stylet pathway. In : Strenght in Diversity : ICE 2004 : 22nd International Congress of Entomology, Brisbane, Australia, 15-21 August 2004. s.l. : s.n., 1 p. International Congress of Entomology. 22, Brisbane, Australie, 15 Août 2004/21 Août 2004.

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Résumé : Peregrinus maidis (AsmeadXHemiptera. Delphacidae) is the only known vector of Maize mosaic virus and Matze stripe virus, two circulative and propagative viruses. The feeding behaviour of P. maidis was investigated with electrical penetration graph technique (DC-EPG). Five different waveforms were characterised. Based on the correlation between waveforms and the fine structure of stylet pathways observed by transmission electron microscopy, active ingestion was restricted to xylem vessels, whereas passive ingestion and watery salivation occurred intermittently in sieve tubes. Spectral and time frequencies analysis of digital data obtained with the "'EPG-Soft" software improved the distinction between ingestion and salivation activities in sieve tubes. Ingestion and watery salivation are essential phases of the feeding behaviour of piercing sucking insects, in relation to acquisition and inoculation of circulative viruses.

Classification Agris : H20 - Maladies des plantes

Auteurs et affiliations

  • Reynaud Bernard, CIRAD-AMIS-PROTECTION DES CULTURES (REU)
  • Gargani Daniel
  • Lecoq Julien
  • Turpin Patrick ORCID: 0000-0002-4008-6975
  • Grondin Martial, CIRAD-AMIS-PROTECTION DES CULTURES (REU)
  • Peterschmitt Michel, CIRAD-AMIS-PROTECTION DES CULTURES (FRA)

Autres liens de la publication

Source : Cirad - Agritrop (https://agritrop.cirad.fr/559587/)

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