SYSTEMIC ACQUIRED RESISTANCE, CHEMICAL INDUCTION AND INDUCED SYSTEMIC RESISTANCE: A COMPARISON
L SCHELLENBAUM1, L ZIMMERLI1, JP METRAUX1 and B MAUCH-MANI1
1Department of Biology, Plant Biology, University of Fribourg, route A. Gockel 3, 1700 Fribourg, Switzerland
Background and objectives
Treatment of plants with SA or chemicals such as benzo (1,2,3) thiadiazole-7-carbothioic acid S-methyl ester (BTH) and 2,6 dichloroisonicotinic acid (INA) also leads to subsequent immunization. These compounds can induce resistance through the accumulation of pathogenesis-related proteins.
Necrotizing agents and chemicals are not the only way to immunize plants against pathogens. Plant-growth-promoting rhizobacteria have also been shown to induce systemic resistance in plants. For example, Pseudomonas fluorescens strains can induce resistance against viruses, bacteria and fungi. However, little is known about the underlying mechanisms and the molecular basis involved.
Results and conclusions