title: Viroid trafficking: a small RNA makes a big move.
abstract: RNA trafficking has broad implications in the systemic spread of infectious agents, plant defense, and the systemic regulation of gene expression. The mechanisms that regulate trafficking remain poorly understood. The non-coding, infectious viroid RNAs are emerging as highly tractable model systems for the investigation of the basic mechanisms of RNA trafficking. Recent studies on viroids have led to new insights into the direct role of RNAs in intracellular and systemic trafficking, and to the identification of cellular proteins that might play a role in RNA trafficking. Here, we discuss these areas of progress, emphasizing on the unifying principles that control the trafficking of viroid, viral and endogenous RNAs.
authors.affiliation: Department of Plant Cellular and Molecular Biology and Plant Biotechnology Center, 207 Rightmire Hall, The Ohio State University, 1060 Carmack Road, Columbus, Ohio 43210, USA. ding.35@osu.edu
authors.forename: Biao
authors.initials: B
authors.lastname: Ding
authors.forename: Asuka
authors.initials: A
authors.lastname: Itaya
authors.forename: Xuehua
authors.initials: X
authors.lastname: Zhong
mesh_terms: D010940:Plant Proteins / Q000378:metabolism; D010942:Plant Viruses / Q000235:genetics / Q000378:metabolism*; D034443:RNA Transport; D012367:RNA, Viral / Q000378:metabolism*; D014772:Viroids / Q000235:genetics / Q000378:metabolism*
chemical_list: D010940:Plant Proteins; D012367:RNA, Viral