Contrasting impacts of herbivore-induction and elevated atmospheric CO2 on silicon defences and consequences for subsequent herbivores

The data was collected from glasshouse growth grass, Brachypodium distachyon to elucidate how elevated CO2 and prior feeding by generalist insect Helicoverpa armigera impacts silicon accumulation and its consequences for subsequent cricket (Acheta domesticus) herbivory. We demonstrate that elevated CO2 decreased (silicon) Si accumulation whereas previous herbivory by the global pest Helicoverpa armigera induced Si defences in B. distachyon.

本数据集的样本采集自温室栽培的二穗短柄草（Brachypodium distachyon），旨在阐明高浓度二氧化碳（elevated CO2）与全球广食性害虫棉铃虫（Helicoverpa armigera）的先期取食，如何影响其硅（silicon, Si）积累，以及该积累变化对后续家蟋蟀（Acheta domesticus）植食行为的影响。本研究证实，高浓度二氧化碳会降低二穗短柄草的硅积累量，而棉铃虫的先期取食则会诱导该植物产生硅防御响应。