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

Deepak, Shantharaj ; Niranjan-Raj, Sathyanarayana ; Shailasree, Shekar ; Kini, Ramachandra K. ; Boland, Wilhelm ; Shetty, Hunthrike S. ; Mithöfer, Axel (2007) Induction of resistance against downy mildew pathogen in pearl millet by a synthetic jasmonate analogon Physiological and Molecular Plant Pathology, 71 (1-3). pp. 96-105. ISSN 0885-5765

Full text not available from this repository.

Official URL: http://linkinghub.elsevier.com/retrieve/pii/S08855...

Related URL: http://dx.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
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Field Study; Induced Resistance; Jasmonate Analogon; Sclerospora
ID Code:46696
Deposited On:06 Jul 2011 07:20
Last Modified:06 Jul 2011 07:20

Repository Staff Only: item control page