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

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons3812

Boland,  W.
Department of Bioorganic Chemistry, MPI for Chemical Ecology, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons4052

Mithöfer,  A.
Department of Bioorganic Chemistry, MPI for Chemical Ecology, Max Planck Society;

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Zitation

Deepak, S., Niranjan-Raj, S., Shailasree, S., Kini, R. K., Boland, W., Shetty, S. H., et al. (2007). Induction of resistance against downy mildew pathogen in pearl millet by a synthetic jasmonate analogon. Physiological and Molecular Plant Pathology, 71(1-3), 96-105. doi:10.1016/j.pmpp.2007.12.003.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0012-9FAE-1
Zusammenfassung
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.