| Autor: |
Mayo-Hernández J; Departamento de Parasitología, Universidad Autónoma Agraria Antonio Narro, Buenavista, Saltillo, C.P. 25315, Coahuila, Mexico., Ramírez-Chávez E; CINVESTAV-Unidad Irapuato, Unidad de Biotecnología e Ingeniería Genética de Plantas, Km 9.6 del Libramiento Norte Carretera Irapuato-León, Irapuato, C.P. 36821, Guanajuato, Mexico., Molina-Torres J; CINVESTAV-Unidad Irapuato, Unidad de Biotecnología e Ingeniería Genética de Plantas, Km 9.6 del Libramiento Norte Carretera Irapuato-León, Irapuato, C.P. 36821, Guanajuato, Mexico., Guillén-Cisneros ML; Centro de Investigación en Química Aplicada, Laboratorio Central de Instrumentación Analítica, Boulevard Enrique Reyna Hermosillo 140, Saltillo, C.P. 25294, Coahuila, Mexico., Rodríguez-Herrera R; Universidad Autónoma de Coahuila, Facultad de Ciencias Químicas, Boulevard Venustiano Carranza y José Cárdenas S/N, Saltillo, C.P. 25280, Coahuila, Mexico., Hernández-Castillo F; Departamento de Parasitología, Universidad Autónoma Agraria Antonio Narro, Buenavista, Saltillo, C.P. 25315, Coahuila, Mexico., Flores-Olivas A; Departamento de Parasitología, Universidad Autónoma Agraria Antonio Narro, Buenavista, Saltillo, C.P. 25315, Coahuila, Mexico., Valenzuela-Soto JH; CONACyT-Centro de Investigación en Química Aplicada, Departamento de Biocienciasy Agrotecnología, Boulevard Enrique Reyna Hermosillo 140, Saltillo, C.P. 25294, Coahuila, Mexico. |
| Abstrakt: |
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 . |
