Nucleic Acids Research, 1983, Vol. 11, No. 21 7387-7396
© 1983
MOLECULAR BIOLOGY |
Demonstration of the bipartite nature of the genome of a single-stranded DNA plant virus by infection with the cloned DNA components
Department of Pure and Applied Biology, Imperial College of Science and Technology London SW7 2BB, UK
*Present address: Department of Botany, Plant Pathalogy and Microbiology, Auburn University, Auburn, Alabama36849, USA
+ Author to whom reprint requests should be addressed.
Received August 12, 1983. Revised October 4, 1983. Accepted October 4, 1983.
Linear double-stranded (ds)DNA, obtained by excision of the cloned A and B components of tomato golden mosaic virus (TGMV) from recombinant plasmids, was found to infect plants and to elicit symptoms identical to those obtained with TGMV or TGMV DNA. Progeny virus isolated from plants infected with cloned DNA was infective and indistinguishable from TGMV on the basis of (a) its circular single-stranded (ss)DNA genome, (b) its capsid polypeptide, (c) its particle morphology and (d) serological identity. Southern blot analysis of DNA extracted from cells infected with cloned DNA, or TGMV DNA, revealed the same intracellular ss and dsDNA species, represented in both A and B components, except for a subgenomic, possibly defective, DNA, which was not detected in infections with cloned DNA.
Infection with cloned DNA was achieved when cloned A and B components were both present, but not with either cloned A or B components separately. TGMV is the first DNA virus for which unequivocal proof of a bipartite genome has been obtained.
![]()
CiteULike
Connotea
Del.icio.us What's this?
This article has been cited by other articles:
![]() |
H. Bass, S Nagar, L Hanley-Bowdoin, and D Robertson Chromosome condensation induced by geminivirus infection of mature plant cells J. Cell Sci., January 4, 2000; 113(7): 1149 - 1160. [Abstract] [PDF] |
||||
![]() |
B. M. Orozco and L. Hanley-Bowdoin Conserved Sequence and Structural Motifs Contribute to the DNA Binding and Cleavage Activities of a Geminivirus Replication Protein J. Biol. Chem., September 18, 1998; 273(38): 24448 - 24456. [Abstract] [Full Text] [PDF] |
||||

