Archives of Phytopathology and Plant Protection (2013) 46, 1857-1863

H.A. Osman, M.M.A. Youssef, A.Y. El-Gindi, H.H. Ameen, N.A. Abd-Elbary and A.M.S. Lashein (2013)
Effect of abiotic resistance inducers, γ-amino-n-butyric acid (GABA), ascorbic acid and chitosan on certain enzyme activities of eggplant inoculated with root-knot nematode, Meloidogyne incognita
Archives of Phytopathology and Plant Protection 46 (15), 1857-1863
Abstract: Treatments with γ-amino-n-butyric acid (GABA), ascorbic acid (vitamin C) and chitosan by foliar spray or root dipping technique to eggplant growing under greenhouse conditions before and after inoculation of Meloidogyne incognita showed a generalised increase in the activity of the enzymes, peroxidase (POX), polyphenol oxidase (PPO) and chitinase as compared with the infected non treated control. The maximum increase in POX activity occurred after 10 days of nematode inoculation. The relative PPO activity with chitosan at 2500 ppm, GABA at 5000 ppm and ascorbic acid at 10 ppm using root dipping was found to be 375, 338 and 175% of control, respectively. As for PPO oxidase, the maximum activity was observed after five days of nematode inoculation by using ascorbic acid at 10 ppm followed by GABA at 5000 ppm and chitosan at 2500 ppm by root dipping (800, 767 and 600% of control), respectively, while the highest chitinase enzyme activity (281% of control) was observed using chitosan at 2500 ppm after 10 days of inoculation.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Mahmoud M. Ahmed Youssef

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Meloidogyne incognita	Eggplant (Solanum melongena)