Gene Expression Regulation, Plant; Herbivory/genetics; Ipomoea batatas/genetics; Ipomoea batatas/physiology; Plant Proteins/genetics; Spodoptera/physiology; Animals; Antioxidants/metabolism; Base Sequence; Cyclopentanes/metabolism; Cyclopentanes/pharmacology; DNA-Binding Proteins/metabolism; Gene Expression Profiling; Gene Expression Regulation, Plant/drug effects; Gene Ontology; Herbivory/drug effects; Ipomoea batatas/drug effects; Models, Biological; Molecular Sequence Data; Oxylipins/metabolism; Oxylipins/pharmacology; Plant Leaves/drug effects; Plant Leaves/metabolism; Plant Proteins/metabolism; Promoter Regions, Genetic/genetics; Protein Binding/drug effects; Salicylic Acid/metabolism; Salicylic Acid/pharmacology; Sequence Analysis, DNA; Singlet Oxygen/metabolism; Spectrometry, Mass, Electrospray Ionization; Spodoptera/drug effects; Stress, Physiological/genetics; Transcription Factors/metabolism; Transcriptome/drug effects; Transcriptome/genetics; Two-Hybrid System Techniques