Research Notes Limited Replication of Tomato Golden Mosaic Virus DNA in Explants of Nonhost Species. Drake C. Stenger. Biotechnology Center and Department of Molecular Genetics, The Ohio State University, Columbus 43210 U.S.A. Keith R. Davis(2), and David M. Bisaro(1). Biotechnology Center and Departments of Molecular Genetics(1) and Plant Biology(2), The Ohio State University, Columbus 43210 U.S.A. MPMI 5:525-527. Accepted 24 August 1992. Copyright 1992 The American Phytopathological Society.

Agroinoculation of the cloned genome components of tomato golden mosaic virus (TGMV) produces systemic infection of Nicotiana benthamiana, but not tomato, sugar beet, or Arabidopsis thaliana. However, upon agroinoculation of explant tissue, limited TGMV DNA synthesis was observed in all three nonhost species, indicating that the host range restriction is not due to an absolute inhibition of replication.