Repositorio UFRO · Omeka S

Positive Chemotaxis of the Entomopathogenic Nematode Steinernema australe (Panagrolaimorpha: Steinenematidae) towards High-Bush Blueberry (Vaccinium corymbosum) Root Volatiles

Primer Autor	Ceballos, Ricardo
Co-autores	Palma-Millanao, Ruben Navarro, Patricia D. D. Urzua, Julio Alveal, Juan
Título	Positive Chemotaxis of the Entomopathogenic Nematode Steinernema australe (Panagrolaimorpha: Steinenematidae) towards High-Bush Blueberry (Vaccinium corymbosum) Root Volatiles
Editorial	MDPI
Revista	INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Lenguaje	en
Resumen	The foraging behavior of the infective juveniles (IJs) of entomopathogenic nematodes (EPNs) relies on host-derived compounds, but in a tri-trophic context, herbivore-induced root volatiles act as signals enhancing the biological control of insect pests by recruiting EPNs. In southern Chile, the EPN Steinernema australe exhibits the potential to control the raspberry weevil, Aegorhinus superciliosus, a key pest of blueberry Vaccinium corymbosum. However, there is no information on the quality of the blueberry root volatile plume or the S. australe response to these chemicals as putative attractants. Here, we describe the root volatile profile of blueberries and the chemotaxis behavior of S. australe towards the volatiles identified from Vaccinium corymbosum roots, infested or uninfested with A. superciliosus larvae. Among others, we found linalool, & alpha,-terpineol, limonene, eucalyptol, 2-carene, 1-nonine, 10-undecyn-1-ol, and methyl salicylate in root volatiles and, depending on the level of the emissions, they were selected for bioassays. In the dose-response tests, S. australe was attracted to all five tested concentrations of methyl salicylate, 1-nonine, & alpha,-terpineol, and 2-carene, as well as to 100 & mu,g mL(-1) of 10-undecyn-1-ol, 0.1 and 100 & mu,g mL(-1) of linalool, and 100 & mu,g mL(-1) of limonene, whereas eucalyptol elicited no attraction or repellency. These results suggest that some volatiles released from damaged roots attract S. australe and may have implications for the biocontrol of subterranean pests.
Fecha Publicación	2023
Tipo de Recurso	artículo original
doi	10.3390/ijms241310536
Formato Recurso	PDF
Palabras Claves	root volatiles belowground interactions entomopathogenic nematode recruitment foraging behavior olfactometer
Ubicación del archivo	http://dx.doi.org/10.3390/ijms241310536
Categoría OCDE	Bioquímica y biología molecular Química
Materias	raíces volátiles interacciones subterráneas reclutamiento de nematodos entomopatógenos comportamiento de búsqueda de alimento olfatómetro
Identificador del recurso (Mandatado-único)	artículo original
Versión del recurso (Recomendado-único)	versión publicada
License	CC BY 4.0
Condición de la licencia (Recomendado-repetible)	CC BY 4.0
Derechos de acceso	acceso abierto
Access Rights	acceso abierto
Id de Web of Science	WOS:001031141500001
ISSN	1661-6596
Tipo de ruta	verde# dorado
Categoría WOS	Bioquímica y biología molecular Química
Referencia del Financiador (Mandatado si es aplicable-repetible)	ANID FONDEF IDeA I+D 18I10005