TY - JOUR
T1 - Benzothiadiazole induces disease resistance in Arabidopsis by activation of the systemic acquired resistance signal transduction pathway
AU - Lawton, Kay A.
AU - Friedrich, Leslie
AU - Hunt, Michelle
AU - Weymann, Kris
AU - Delaney, Terrance
AU - Kessmann, Helmut
AU - Staub, Theodor
AU - Ryals, John
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 1996/7
Y1 - 1996/7
N2 - Beozothiadiazole (BTH) is a novel chemical activator of disease resistance in tobacco, wheat and other important agricultural plants. In this report, it is shown that BTH works by activating SAR in Arabidopsis thaliana. BTH-treated plants were resistant to infection by turnip crinkle virus, Pseudomonas syringae pv 'tomato' DC3000 and Peronospora parasitica. Chemical treatment induced accumulation of mRNAs from the SAR-associated genes, PR-1, PR-2 and PR-5. BTH treatment induced both PR-1 mRNA accumulation and resistance against P. parasitica in the ethylene response mutants, etr1 and ein2, and in the methyl jasmonate-insensitive mutant, jar1, suggesting that BTH action is independent of these plant hormones, BTH treatment also induced both PR-1 mRNA accumulation and P parasitica resistance in transgenic Arabidopsis plants expressing the nahG gene, suggesting that BTH action does not require salicylic acid accumulation. However, because BTH-treatment failed to induce either PR-1 mRNA accumulation or P. parasitica resistance in the non-inducible immunity mutant, nim1, it appears that BTH activates the SAR signal transduction pathway.
AB - Beozothiadiazole (BTH) is a novel chemical activator of disease resistance in tobacco, wheat and other important agricultural plants. In this report, it is shown that BTH works by activating SAR in Arabidopsis thaliana. BTH-treated plants were resistant to infection by turnip crinkle virus, Pseudomonas syringae pv 'tomato' DC3000 and Peronospora parasitica. Chemical treatment induced accumulation of mRNAs from the SAR-associated genes, PR-1, PR-2 and PR-5. BTH treatment induced both PR-1 mRNA accumulation and resistance against P. parasitica in the ethylene response mutants, etr1 and ein2, and in the methyl jasmonate-insensitive mutant, jar1, suggesting that BTH action is independent of these plant hormones, BTH treatment also induced both PR-1 mRNA accumulation and P parasitica resistance in transgenic Arabidopsis plants expressing the nahG gene, suggesting that BTH action does not require salicylic acid accumulation. However, because BTH-treatment failed to induce either PR-1 mRNA accumulation or P. parasitica resistance in the non-inducible immunity mutant, nim1, it appears that BTH activates the SAR signal transduction pathway.
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U2 - 10.1046/j.1365-313X.1996.10010071.x
DO - 10.1046/j.1365-313X.1996.10010071.x
M3 - Article
C2 - 8758979
AN - SCOPUS:0030187533
SN - 0960-7412
VL - 10
SP - 71
EP - 82
JO - Plant Journal
JF - Plant Journal
IS - 1
ER -