A planthopper-secreted miRNA facilitates viral infection by disrupting plant growth-defense balance in rice.
Insect vectors can enhance the pathogenicity of plant arboviruses, yet the molecular mechanisms driving this cross-kingdom manipulation remain elusive. Here, we demonstrate that white-backed planthoppers secrete a specific microRNA, miR-133, into rice to facilitate southern rice black-streaked dwarf virus (SRBSDV) infe...