Neonicotinoid Insecticides Alter the Transcriptome of Soybean and Decrease Plant Resistance.

ABSTRACT: Neonicotinoids are widely used systemic insecticides that have been associated with spider mite outbreaks on diverse plants. These insecticides have complex effects on plant physiology, which have been speculated to drive enhanced performance of spider mites. We used RNA-Seq to explore how neonicotinoids modify gene expression in soybean thereby lowering plant resistance. We exposed soybean (Glycine max L.) to two neonicotinoid insecticides, thiamethoxam applied to seeds and imidacloprid applied as a soil drench, and we exposed a subset of these plants to spider mites (Tetranychus cinnabarinus). Applications of both insecticides downregulated genes involved in plant-pathogen interactions, phytohormone pathways, phenylpropanoid pathway, and cell wall biosynthesis. These effect

SUBMITTER: Wulff JA 

PROVIDER: S-EPMC6387383 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature