Effects of Bactericera cockerelli Herbivory on Volatile Emissions of Three Varieties of Solanum lycopersicum

Autor: Juan Mayo-Hernández, Enrique Ramírez-Chávez, Jorge Molina-Torres, María de Lourdes Guillén-Cisneros, Raúl Rodríguez-Herrera, Francisco Hernández-Castillo, Alberto Flores-Olivas, José Humberto Valenzuela-Soto
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Plants, Vol 8, Iss 11, p 509 (2019)
Druh dokumentu: article
ISSN: 2223-7747
DOI: 10.3390/plants8110509
Popis: Domesticated tomato (Solanum lycopersicum L.) crops have presented an increased susceptibility to pests under field and greenhouse conditions. Among these pests is tomato/potato psyllid, Bactericera cockerelli Sulc (Hemiptera: Triozidae), a major pest in solanaceous crops. In this study, we evaluated volatile organic compound (VOC) emissions from the headspace in three healthy varieties of tomato plants (Floradade, Micro-Tom and wild) under greenhouse conditions using solid-phase microextraction and gas chromatography−mass spectrometry (SPME/GC-MS). Later, independent bioassays were performed to evaluate VOC emissions with three varieties infested with nymphs of B. cockerelli. The results in healthy plants showed markedly different VOC profiles in each variety (14 compounds for wild, 17 for Floradade and 4 for Micro-Tom). Plants infested with nymphs showed changes in VOC emissions distinctly in Floradade and wild varieties. We suggest that these qualitative differences in VOC profiles by the degree of domestication could explain the preferences of B. cockerelli.
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