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Virus Resistance Induced with Mannan Sulphates in Hypersensitive Host Plants
Author(s) -
Kovalenko A. G.,
Grabina T. D.,
Kolesnik L. V.,
Didenko L. F.,
Oleschenko L. T.,
Olevinskaya Z. M.,
Telegeeva T. A.
Publication year - 1993
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.1993.tb01333.x
Subject(s) - tobacco mosaic virus , biology , lytic cycle , mannan , protoplast , microbiology and biotechnology , hypersensitive response , virus , tobamovirus , host (biology) , extracellular , viral replication , virology , plant disease resistance , botany , biochemistry , polysaccharide , genetics , gene
Mannan sulphates (MS), obtained by sulphatation of extracellular linear mannan (LM) from Rhodotorula rubra , induced resistance to tobacco mosaic virus (TMV) in hypersensitive plants, retained in isolated protoplasts. MS‐induced resistance in tobacco is accompanied by a marked increase of lytic processes in cells and a decrease of total (acidic and alkaline) protein content. In addition to this, new protein components, including PR‐proteins and antiviral substances, of the inhibitor of virus replication (IVR) type, appeared in treated plant tissues. MS‐induced resistance resembles localized resistance induced by TMV in hypersensitive tobacco plants and could serve as an experimental model for study of the latter.