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Effect of Salicylic Acid and Phenylserine on the Hypersensitive Reaction of Tobacco to Tobacco Mosaic Virus
Author(s) -
WieringaBrants D. H.,
Schets F. M.
Publication year - 1988
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.1439-0434.1988.tb04485.x
Subject(s) - tobacco mosaic virus , salicylic acid , lesion , tobamovirus , inoculation , biology , nicotiana tabacum , horticulture , solanaceae , nicotiana , virus , virology , biochemistry , pathology , medicine , gene
Abstract Injection of leaves of tobacco ( Nicotiana tahacum cv. ‘Xanthi’ nc) with salicylic acid (SA) or phenylsene (PS) had an effect on the local lesion development caused by tobacco mosaic virus (TMV), depending upon the concentration used and the time interval between injection and challenge inoculation. Maximum reduction in lesion size was obtained with 0.75 mM SA or with 8 mM PS. Concentrations higher than 1 mM SA or 25 mM PS damaged the leaf tissue, PS being far less toxic than SA. The leaves responded rapidly to injection with SA or PS. A time interval of only 1 h between injection and TMV inoculation reduced the lesion size significantly. Isolated tobacco cell walls incubated with SA yielded carbohydrate fractions capable of reducing lesion size significantly after injection. Cell walls incubated without SA or with PS did not yield active carbohydrate fractions.