Abstract

GONZALEZ, Ivonne et al. Induction of defence mechanisms in tomato (Solanum lycopersicum L. cv. Amalia) plants by essential oils. Rev. Protección Veg. [online]. 2013, vol.28, n.3, pp.185-191. ISSN 1010-2752.

In this work, the effect of different essential oils was evaluated using tomato cv. Amalia plants. The plants were sprayed with different oils and inductors as Bion, and leave samples were taken at 24, 72 and 144 hours after spray. Total protein concentration and specific enzymatic activities of peroxidases, polyphenoloxidases, phenylalanine ammonia lyase and chitinases were determined. The essential oils obtained from citric fruit scraps and Melaleuca quinquenervia (Cav) S.T. Blake induced higher peroxidases, polyphenoloxidases and chitinases enzymatic activities. Jasmonic acid and phospholipids were responsible for phenylalanine ammonia lyase induction.

Keywords : jasmonic acid; Bion; Fitomas; phospholipids.

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