Journal
PLANT GROWTH REGULATION
Volume 41, Issue 1, Pages 89-91Publisher
KLUWER ACADEMIC PUBL
DOI: 10.1023/A:1027355604096
Keywords
acquired resistance; Banksia attenuata; benzoic acid; Phytophthora cinnamomi; salicylic acid
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Banksia attenuata plants were treated with soil drenches or foliar sprays of benzoic acid (BZA) to determine induced resistance to Phytophthora cinnamomi. Stems of B. attenuata were inoculated with the pathogen 1 week after treatment with BZA. Resistance was estimated by measuring P. cinnamomi lesions on stems. Treatment with 0.10 mM, 0.25 mM or 0.50 mM BZA caused a reduction in lesion size with 0.50 mM BZA applied as a soil drench being the most effective treatment at suppressing the development of lesions. This is the first report of BZA induced host resistance in any plant species to any pathogen.
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