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Evidence for Multiplicity Reactivation of Ultraviolet Light Irradiated Ribonucleic Acid Isolated from Tobacco Mosaic Virus
Author(s) -
Takahashi Tsuyoshi,
Hayashi Takaharu,
Kiho Yukio
Publication year - 1968
Publication title -
japanese journal of microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.664
H-Index - 70
eISSN - 1348-0421
pISSN - 0021-5139
DOI - 10.1111/j.1348-0421.1968.tb00383.x
Subject(s) - tobacco mosaic virus , rna , virology , tobamovirus , biology , recombination , rna dependent rna polymerase , ultraviolet light , virus , microbiology and biotechnology , gene , genetics , chemistry , photochemistry
Multiplicity reactivation (MR) seems to take place in leaves of Nicotiana glutinosa inoculated with ultraviolet (UV) light irradiated RNA from tobacco mosaic virus (TMV‐RNA). A similar phenomenon was not observed with UV‐irradiated TMV particles. Considering MR as resulting from genetic recombination between viral genomes, a recombination mechanism, which has been difficult to prove with plant viruses, is proposed as being operative during multiplication of TMV. From the pattern of MR of TMV‐RNA, the location of the gene for the RNA replicase within a TMV‐RNA strand is discussed.