Abstract
Eriophyoid mites are ancient and widely distributed microscopic plant symbionts, with 4,400 nominal species. Some eriophyoid mites can induce galls in their plant hosts, but the mechanism of gall induction is not well understood. One hypothesis suggests that associated bacteria may enhance the production of phytohormones by gall-inducing arthropods. The phylogenetic position of Eriophyoidea is also a contentious issue.
References
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