Induction of resistance against downy mildew pathogen in pearl millet by a synthetic jasmonate analogon

Deepak, S. and Niranjan-Raj, Sathyanarayana and Shailasree, Shekar and Kini, Ramachandra K. and Boland, Wilhelm and Shetty, Hunthrike S. and Mithöfer, Axel (2007) Induction of resistance against downy mildew pathogen in pearl millet by a synthetic jasmonate analogon. Physiological and Molecular Plant Pathology, 71 (1). 96 - 105. ISSN 1096-1178

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Official URL: https://doi.org/10.1016/j.pmpp.2007.12.003

Abstract

The synthetic 1-oxo-indanoyl-l-isoleucine methyl ester (Ind-Ile-Me) represents a highly active mimic of octadecanoic phytohormones, which are involved in plant defenses against pathogens and pests. Seed treatments and foliar spray with Ind-Ile-Me were tested for induced resistance against downy mildew disease caused by the phytopathogenic oomycete Sclerospora graminicola in pearl millet (Pennisetum glaucum) under greenhouse and field conditions. Under greenhouse conditions, a 50 protection level was achieved after seed treatment. Seed treatment in combination with foliar spray resulted in 60 protection. The induction of resistance was correlated with the enhanced activities of defense-related proteins such as phenylalanine-ammonia-lyase, peroxidase, and enhanced level of hydroxyproline-rich glycoproteins. Under field conditions, a maximum protection of 62 was recorded upon seed treatment along with foliar spray. Hence, it infers that Ind-Ile-Me can be used as a valuable protection compound at least in downy mildew disease management.

Item Type: Article
Uncontrolled Keywords: Field study, Induced resistance, Jasmonate analogon,
Subjects: B Life Science > Biotechnology
Divisions: Department of > Biotechnology
Depositing User: MUL SWAPNA user
Date Deposited: 16 Sep 2019 05:07
Last Modified: 16 Sep 2019 05:07
URI: http://eprints.uni-mysore.ac.in/id/eprint/8136

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