Identification of a basic pathogenesis-related, thaumatin-like protein of virus-infected tobacco as osmotin
1991
Stintzi, A. | Heitz, T. | Kauffmann, S. | Legrand, M. | Fritig, B.
A basic PR protein was isolated and characterized from Samsun NN tobacco leaves infected with tobacco mosaic virus. The protein is serologically-related to the pathogenesis-related (PR) protein R and S, the thaumatin-like (TL) proteins so-called because of their high level of homology with thaumatin, a sweet-tasting protein from the West African shrub Thaumatococcus daniellii Benth. Its amino acid composition and its NH2-terminal sequence indicate that this PR protein is in fact osmotin, a protein known to accumulate in tobacco cells in response to osmotic stress. A specific serum was obtained and used in immunoblotting experiments to study the serological relationships of TL-proteins of tobacco and to compare the induction of osmotin and acidic PR proteins R and S during the hypersensitive reaction of tobacco to tobacco mosaic virus.
Show more [+] Less [-]AGROVOC Keywords
Bibliographic information
This bibliographic record has been provided by National Agricultural Library