Herbivore-induced volatile emissions are altered by soil legacy effects in cereal cropping systems

摘要: Soil properties, including microbial composition and nutrient availability, can influence the emissions of plant volatile organic compounds (VOCs) that serve as host-location cues for insect pests their natural enemies. Agricultural practices have profound effects on soil but how these crop VOCs remains largely unknown. The aim this study was to investigate effect agricultural constitutive herbivore-induced VOC by a major staple through legacy effects. In full factorial experiment, we measured wheat (Triticum aestivum) grown in inoculum from wheat-fallow or wheat-cover rotations subjected feeding larval Cephus cinctus. Under herbivory, plants cover emitted greater total VOCs, higher concentrations 2-pentadecanone, an repellent, nonanal, compound important recruitment Plants fallow showed no differences whether under herbivory not. did not absence feeding. These results suggest Additionally, crops may be less successful recruiting enemies signaling. Volatile (VOCs); volatiles (HIPV); green leaf (GLVs); northern Great Plains (NGP); stem sawfly (WSS); gas chromatography-mass spectrometry (GC-MS); non-metric multidimensional scaling (NMDS); generalized linear mixed-effects model (GLMM).