info:eu-repo/semantics/article
Insect-corn kernel interaction: Chemical signaling of the grain and host recognition by Sitophilus zeamais
Fecha
2018-12Registro en:
Usseglio, Virginia Lara; Dambolena, José Sebastián; Merlo, Carolina; Peschiutta, María Laura; Zunino, María Paula; Insect-corn kernel interaction: Chemical signaling of the grain and host recognition by Sitophilus zeamais; Pergamon-Elsevier Science Ltd; Journal of Stored Products Research; 79; 12-2018; 66-72
0022-474X
CONICET Digital
CONICET
Autor
Usseglio, Virginia Lara
Dambolena, José Sebastián
Merlo, Carolina
Peschiutta, María Laura
Zunino, María Paula
Resumen
In living organisms, the cuticle has structural functions and is involved through chemical signaling in biological interactions such as plant-insect and provides protection against biotic and abiotic factors, thereby avoiding desiccation or the attack of predators. The objective of this study was to investigate the participation of the epicuticle in the maize kernel-Sitophilus zeamais interaction. The GC-MS analysis of the epicuticle extract demonstrated the presence of aliphatic hydrocarbons, alcohols, ethers, fatty acids, sterols and their derivatives. The results of bioassays show that the epicuticle of maize has a primordial role in its interaction with S. zeamais, and participates in the recognition and attraction to the food source, as well as regulating its reproduction. In addition the compounds present in the epicuticle extract may act as signal molecules and development regulators. This study reveals the effect of the maize kernel cuticle on Sitophilus behavior and contributes to the understanding of the interaction.