Sex pheromones of two leafminer species, Antispila oinophylla and Holocacista rivillei (Lepidoptera Heliozelidae) infesting grapevine in Italy

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Abstract

Two heliozelid species, Antispila oinophylla van Nieukerken & Wagner and Holocacista rivillei (Stainton) severely infest Italian grapevines. The volatile pheromones from calling females were collected by solid phase micro extraction (SPME) and analyzed by gas chromatography with electroantennographic detection (GC-EAD). Two compounds from A. oinophylla females eliciting electrophysiological activity from the conspecific male antenna were identified as (Z)-5-tetradecenal and (Z)-7-tetradecenal by coupled gas chromatography/mass spectrometry (GC/MS) analysis. SPME collections from H. rivillei produced no GC-EAD active compounds but analysis of fatty acyl moieties in the pheromone gland, demonstrated the presence of the putative pheromone biosynthetic precursors (Z)-5-dodecenoic acid and (Z)-7-tetradecenoic acid. Field trapping experiments in Italy confirmed that (Z)-5-tetradecenal and (Z)-7-tetradecenal are essential for the attraction of male A. oinophylla in a blend ratio of 15:100 respectively, whereas (Z)-5-dodecenal and (Z)-7-tetradecenal attract male H. rivillei in a blend ratio of 100:6.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • University of Trento
  • Edmund Mach Foundation
  • Naturalis Biodiversity Center
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Biokemi och molekylärbiologi
  • Ekologi

Nyckelord

Originalspråkengelska
Sidor (från-till)1-8
TidskriftJournal of Chemical Ecology
Volym45
Utgåva nummer1
StatusPublished - 2019
PublikationskategoriForskning
Peer review utfördJa

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