Universal Journal of Plant Science Vol. 5(1), pp. 10 - 15
DOI: 10.13189/ujps.2017.050102
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Stimulation of Defense Enzymes in Tomato (Solanum lycopersicum L.) and Chilli (Capsicum annuum L.) in Response to Exogenous Application of Different Chemical Elicitors


Y.S.M. Asanka Indunil Kumari , A. Vengadaramana *
Department of Botany, Faculty of science, University of Jaffna, Sri Lanka

ABSTRACT

The objective of this study was to evaluate the response to exogenous application of different chemical elicitors on the stimulation of defense enzymes such as chitinase, peroxidase, phenylalanine ammonialyase (PAL) and polyphenoloxidase (PPO) in tomato and chilli plants leaves tissues. Chemical elicitors are compounds, which activate chemical defense systems in plants. Various biosynthetic pathways are activated by chemical elicitors in plants depending on the elicitors used. Two times exogenous application of 200 ppm of salicylic acid (SA), ascorbic acid (AA), jasmonic acid (JA) and H2O2 and ethanol (1 mL of 95% ethanol in 1 L distilled water) induced the four defense enzymes production in chilli and tomato plants leaves tissues and significantly reduced viral disease incidence in chilli plants compared to control. SA at 200 ppm enhanced significantly chitinase, peroxidase, PAL and PPO enzymes in leaves tissues of tomato plants. Tomato plants treated with chemical elicitors and control did not show any disease symptoms.

KEYWORDS
Ascorbic Acid, Chilli, Jasmonic acid, Peroxidase, Salicylic Acid, Tomato

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Y.S.M. Asanka Indunil Kumari , A. Vengadaramana , "Stimulation of Defense Enzymes in Tomato (Solanum lycopersicum L.) and Chilli (Capsicum annuum L.) in Response to Exogenous Application of Different Chemical Elicitors," Universal Journal of Plant Science, Vol. 5, No. 1, pp. 10 - 15, 2017. DOI: 10.13189/ujps.2017.050102.

(b). APA Format:
Y.S.M. Asanka Indunil Kumari , A. Vengadaramana (2017). Stimulation of Defense Enzymes in Tomato (Solanum lycopersicum L.) and Chilli (Capsicum annuum L.) in Response to Exogenous Application of Different Chemical Elicitors. Universal Journal of Plant Science, 5(1), 10 - 15. DOI: 10.13189/ujps.2017.050102.