Abstract
Field trials during late summer to early spring in two consecutive years demonstrated that applying 2,6-dichloroisonicotinic acid (INA) to bean seedlings (cv. Redlands Pioneer) when they were 16 to 20 days old protected plants against rust disease caused by subsequent inoculation with Uromyces appendiculatus. Protected plants had 2–10 times fewer uredinia than control plants, and protection was sustained throughout most of the growing season (is. for at least 5 weeks). Treatment with 2,6-dichloro-isonicotinic acid also curtailed the spread of the disease to upper uninoculated leaves, which had 4–5 times fewer uredinia than the same leaves of control plants. There was no additional resistance gained by applying a second or ‘booster’ WA treatment.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Dann, E.K. (1995) — Biological and chemical induction of systemic resistance to diseases in green bean. PhD thesis, The University of Sydney, Sydney.
Dann, E.K. and Deverall, B.J. (1995) — Effectiveness of systemic resistance in bean against foliar and soil-borne pathogens as induced by biological and chemical means. Plant Pathology 44: 458–466.
Dann, E.K., Meuwly, P., Métraux, J.-P. and Deverall, B. J. (1996) — The effect of pathogen inoculation or chemical treatment on activities of chitinase and b-1,3-glucanase and accumulation of salicylic acid in leaves of green bean, Phaseolus vulgaris L. Physiological and Molecular Plant Pathology (In press).
Deverall, B.J. (1995) — Plant protection using natural defence systems of plants. Advances in Plant Pathology 11: 211–228.
Hammerschmidt, R. and Kuć, J. (Eds) (1995) — Induced Resistance to Disease in Plants. Kluwer Academic Publishers, Dordrecht, The Netherlands.
Heath, M.C. (1995) — Thoughts on the role and evolution of induced resistance in natural ecosystems, and its relationship to other types of plant defenses against disease. In Induced Resistance to Disease in Plants (Eds R. Hammerschmidt and J. Kuc), pp. 141–151. Kluwer Academic Publishers, Dordrecht, The Netherlands.
Métraux, J.-P., Ahl Goy, P., Staub, T., Speich, J., Steinmann, A., Ryals, J. and Ward, E. (1991) — Induced systemic resistance in cucumber in response to 2,6-dichloro-isonicotinic acid and pathogens. In Advances in Molecular Genetics of Plant-Microbe Interactions Vol 1. (Eds H. Hennecke and D.P.S. Verma), pp. 432–439. Kluwer Academic Publishers, Dordrecht, The Netherlands.
Nielsen, K.K., Bojsen, K., Collinge, D.B. and Mikkelsen, J.D. (1994) — Induced resistance in sugar beet against Cercospora beticola, induction by dichloroisonicotinic acid is independent of chitinase and b-1,3-glucanase transcript accumulation. Physiological and Molecular Plant Pathology 45: 89–99.
Seguchi, K., Kurotaki, M., Sekido, S. and Yamaguchi, I. (1992) — Action mechanism of N-cyanomethyl-2-chloroisonicotinamide in controlling rice blast disease. Journal of Pesticide Science 17: 107–113.
Sutton, D.C. (1982) — Field protection of bean against Colletotrichum lindemuthianum by Colletotrichum lindemuthianum. Australasian Plant Pathology 11: 50–51.
Yoshida, H., Konishi, K., Koike, K., Nakagawa, T., Sekido, S. and Yamaguchi, I. (1990) — Effect of N-cyanomethyl-2-chloroisonicotinamide for control of rice blast. Journal of Pesticide Science 15: 413–417.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Dann, E.K., Deverall, B.J. 2,6-dichloro-isonicotinic acid (INA) induces resistance in green beans to the rust pathogen, Uromyces appendiculatus, under field conditions. Australasian Plant Pathology 25, 199–204 (1996). https://doi.org/10.1071/AP96034
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1071/AP96034