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About Changes in the Chromatin Structure after Resistance Induction in Hordeum vulgare L.
Author(s) -
Kraska T.,
Schönbeck F.
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.tb01320.x
Subject(s) - biology , hordeum vulgare , inducer , powdery mildew , bacillus subtilis , dna , dna methylation , mildew , isonicotinic acid , gene , genetics , genomic dna , chromatin , botany , biochemistry , gene expression , poaceae , bacteria , hydrazide , organic chemistry , chemistry
The application of the three resistance inducers Trigonelline (N‐Methyl‐nicotinic acid), Isonicotinic acid methyl ester and the culture filtrate of Bacillus subtilis (B 50) to barley resulted in a reduction of infection with powdery mildew up to 65 %. When the isolated high molecular‐weight DNA was hydrolized to single bases the genomic DNA methylation of induced resistant plants was reduced between 3.1 % and 4.8 % compared to the control. On the basis of the given results the hypothesis that inducers could change the DNA structure is discussed considering further information from literature about gene regulation.