Arthropod-Plant Interactions (2012) 6, 221-230

Kei Kawazu, Atsushi Mochizuki, Yukie Sato, Wataru Sugeno, Mika Murata, Shigemi Seo and Ichiro Mitsuhara (2012)
Different expression profiles of jasmonic acid and salicylic acid inducible genes in the tomato plant against herbivores with various feeding modes
Arthropod-Plant Interactions 6 (2), 221-230
Abstract: We compared the expression profiles of jasmonic acid (JA)-inducible genes (Pin2 and LapA1) and salicylic acid (SA)-inducible genes (PRb-1b and GluB) in the tomato (Solanum lycopersicum cv. Micro-Tom) against herbivores using differing feeding modes: the leaf-chewing larvae of the insects Spodoptera litura and S. exigua; the western flower thrips (Frankliniella occidentalis) and the two-spotted spider mite (Tetranychus urticae) as cell-content feeders; and the leaf miner fly (Liriomyza sativae). Feeding by larvae of both S. litura and S. exigua chiefly activated JA-inducible genes, similar to the response to wound stimuli. Feeding by the thrips F. occidentalis also activated JA-inducible genes, as previously reported in Arabidopsis. Feeding by the spider mite T. urticae activated a JA-inducible LapA1 gene but did not activate a JA-inducible Pin2 gene and additionally activated SA-inducible genes, which were accompanied by the accumulation of SA. This may be a strain that represses induction of the JA signaling pathway. One day after oviposition by the leaf miner fly, L. sativae, JA-inducible genes were activated. However, after the L. sativae larvae hatched and began eating within the leaf tissues, JA-inducible gene expression decreased and SA-inducible gene expression increased. Activation of SA-inducible genes (PRb-1b and GluB) by L. sativae larval feeding seems to suppress JA-mediated plant defense but appears to be unrelated to SA accumulation.
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Link to article at publishers website
Database assignments for author(s): Atsushi Mochizuki, Mika Murata, Kei Kawazu, Ichiro Mitsuhara

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tetranychus urticae	Tomato (Solanum lycopersicum)
	Spodoptera exigua	Tomato (Solanum lycopersicum)
	Frankliniella occidentalis	Tomato (Solanum lycopersicum)
	Spodoptera litura	Tomato (Solanum lycopersicum)
	Liriomyza sativae	Tomato (Solanum lycopersicum)