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Spider mite egg extract modifies Arabidopsis response to future infestations

ABSTRACT: Transcriptional plant responses are specially under the scope on herbivore oviposition studies. However, most of the information comes from Lepidopteran models, where egg laying and feeding are separate events, and little is known regarding the plant reaction to those pests where females feed and oviposit simultaneously. The present study unveiled the oviposition-induced transcriptomic response of plants to Tetranychus urticae eggs. Transcriptional evidence indicated that the early events on the plant response to the egg extract involved ATP, Ca2+ and ROS disbalances. The main phytohormones triggered were JA and ET, with which also participated secondary metabolites, volatiles and glucosinolates as defence mechanisms. Many of the regulated genes are also involved during pathogen-defence mechanisms. Negative regulation of defence mechanisms happened at 72 h. Female fertility was significantly reduced when fed on plants pre-exposed to the eggs, while feeding increased on those plants pre-exposed for 72 h.

ORGANISM(S): Arabidopsis thaliana

PROVIDER: GSE168993 | GEO | 2021/09/15

REPOSITORIES: GEO

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Solanum dulcamara's response to insect eggs comprises ovicidal hydrogen peroxide production

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Gene expression in Arabidopsis leaves after P. brassicae egg deposition, chilling, and/or herbivory by P. brassicae larvae

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Oviposition by Spodoptera exigua on Solanum dulcamara alters the plant's response to herbivory and impairs larval performance [L1]

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Oviposition by Spodoptera exigua on Solanum dulcamara alters the plant's response to herbivory and impairs larval performance [L0]

2018-12-11 | GSE123535 | GEO

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