Analysis of the Proteins in the Leaves of Transgenic Tobacco Plants Expressing Double-Stranded RNA Upon Viral Infection

Analysis of the Proteins in the Leaves of Transgenic Tobacco Plants Expressing Double-Stranded... Generation of transgenic tobacco plants, producing double-stranded RNA with no homology to tobacco genome sequences is reported. The RNA synthesis is mediated by a construct containing an inverted repeat of the pBR322 tetracycline-resistance gene fragment under control of the 35S CaMV promoter. Analysis of the resistance of transgenic plants to the tobacco mosaic virus revealed the changes in the protein spectra of the infected plants. The 25- and 30-kDa proteins found were not detected in the extracts of normal plants. Amino acid sequencing of the 30-kDa peptide with subsequent computer database search revealed the homology of this protein to the hydrolases belonging to the group of plant β-glucanases. The role of the novel polypeptides in an increase of the resistance of transgenic plants to TMV, and also the possibility of the regulation of their expression by nonhomologous dsRNA are discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Analysis of the Proteins in the Leaves of Transgenic Tobacco Plants Expressing Double-Stranded RNA Upon Viral Infection

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2004 by MAIK “Nauka/Interperiodica”
Subject
Biomedicine; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1023/B:RUGE.0000024980.29304.b0
Publisher site
See Article on Publisher Site

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