Mite

Mites are diverse acarine arthropods that function as parasites, herbivores, decomposers, and disease-associated organisms across medical, veterinary, and agricultural systems, making them important experimental models for host-parasite interactions and pesticide resistance research^[1][2]. In host tissues, mite infestation can activate innate and adaptive immune responses through cytokine, chemokine, and Toll-like receptor-associated pathways, thereby driving local inflammation and tissue remodeling^[3][4]. Mechanistically, studies of Demodex and scabies mites have linked mite-associated immune activation to increased expression of inflammatory mediators, including cytokine signaling networks and JAK-STAT pathway components^[3][4]. In disease models, elevated mite burdens are associated with inflammatory skin disorders, and transcriptomic analyses of mite-infested tissues have identified conserved immune-response signatures across human and animal models^[3][5]. Compared with other arthropod pests, several phytophagous and parasitic mite species have emerged as powerful systems for investigating rapid adaptation to environmental and chemical stressors because of their pronounced capacity to evolve acaricide resistance^[6][7]. Among these species, the two-spotted spider mite Tetranychus urticae has become a widely used model for functional genomics, resistance genetics, and genome-editing studies^[6]. For experimental applications, RNA interference, CRISPR/Cas9-mediated mutagenesis, genome sequencing, and transcriptomic profiling have enabled mechanistic dissection of resistance pathways and target-site mutations that influence acaricide efficacy^[6][7].