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Induction of systemic protection against rust infection in broad bean by saccharin: effects on plant growth and development
Author(s) -
Boyle Celia,
Walters Dale
Publication year - 2005
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.2005.01439.x
Subject(s) - saccharin , biology , rust (programming language) , plant growth , plant defense against herbivory , botany , toxicology , computer science , programming language , endocrinology , biochemistry , gene
Summary• Here, we examine the effect of saccharin on the induction of systemic resistance in broad bean ( Vicia faba ) to the rust fungus Uromyces viciae‐fabae.• Saccharin was applied to beans at the three‐leaf stage, either as a soil drench or by painting the solution on to first leaves. Plants were then challenge inoculated with the rust 1, 6, 10 and 14 d following saccharin treatment, after which they were harvested, assessed for the intensity of rust infection and plant growth measurements conducted. • Foliar application of saccharin did not induce systemic protection to rust infection until 14 d after application and was less effective than saccharin applied as a soil drench. When saccharin was applied as a drench, systemic protection was not observed until 6 d after application, but was still apparent in plants 14 d after application of the drench. • Irrespective of the method of application, saccharin had no significant effect on fresh and dry weights or leaf area of the plants. Saccharin applied as a drench did, however, reduce the number of leaflets produced.