Induced defence in lima bean plants exposed to the volatiles from two-spotted spider mite-infested conspecifics is independent of the major protein expression

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Abstract

Non-infested plants respond to volatiles from neighboring herbivore-infested plants, triggering induced defence responses against the threat. Information about protein expression in volatile-exposed plants after the 'plant-plant signalling' is scarce. We focused on the defence response and the protein expression of lima bean plants exposed to the volatiles from their conspecifics infested by the two-spotted spider mites (Tetranychus urticae) using a flow chamber. The number of eggs of spider mite was significantly reduced on the plants exposed to infested plant volatiles, suggesting defence induction in the exposed plants. A proteomic analysis on the volatile-exposed plants showed that two proteins associated with photosynthesis and an unknown protein showed a marginally significant decrease and increase, respectively. These results suggest that the induced defence caused by volatiles is essentially independent of changes in the major proteins. © 2013 Copyright Taylor and Francis Group, LLC.

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Sugimoto, K., Matsui, K., Ozawa, R., Kuramitsu, Y., Kley, J., David, A., … Takabayashi, J. (2013). Induced defence in lima bean plants exposed to the volatiles from two-spotted spider mite-infested conspecifics is independent of the major protein expression. Journal of Plant Interactions, 8(3), 219–224. https://doi.org/10.1080/17429145.2013.789563

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