Induced Tomato Plant Resistance Against Tetranychus urticae Triggered by the Phytophagy of Nesidiocoris tenuis
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2018Cita bibliográfica
Pérez-Hedo M, Arias-Sanguino ÁM and Urbaneja A (2018) Induced Tomato Plant Resistance Against Tetranychus urticae Triggered by the Phytophagy of Nesidiocoris tenuis. Front. Plant Sci. 9:1419. doi: 10.3389/fpls.2018.01419Abstract
The zoophytophagous predator Nesidiocoris tenuis (Reuter) (Hemiptera: Miridae) is
capable of inducing plant defenses in tomato due to its phytophagous behavior.
These induced defenses, which include the release of herbivore-induced plant volatiles
(HIPVs), have been proven to affect the oviposition behavior and reduce the subsequent
performance of some tomato pests. However, the effect of induction of plant defenses
by N. tenuis on the preference, development, and reproduction of the two-spotted
spider mite Tetranychus urticae Koch (Acari: Tetranychidae) remains unknown. In this
research, T. urticae did not show preference for the odor source emitted by intact tomato
plants when compared with N. tenuis-punctured plants and jasmonic acid (JA) deficient
mutant tomato plants. Furthermore, the number of eggs laid by T. urticae on intact
tomato plants or on N. tenuis-punctured plants was similar. However, in a greenhouse
experiment conducted to evaluate whether the defense induction mediated by N. tenuis
had an effect on T. urticae the infestation of T. urticae was significantly reduced by 35%
on those plants previously activated by N. tenuis when compared to the control. The
expression of a JA-responsive gene that was upregulated and the transcription of the
plant protein inhibitor II was higher on activated plants relative to the control. These
results can serve as a basis for the development of new management strategies for
T. urticae based on plant defense mechanisms induced from the phytophagous behavior
of N. tenuis.