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

[摘要] 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.

[学科分类] 纳米科学和纳米技术

[关键词] herbivore-infested plant volatiles;lima bean;two-spotted spider mite