Anti-herbivore silicon defences in a model grass are greatest under Miocene levels of atmospheric CO2

This dataset is an excel file relating to the impact of atmospheric CO2 on grass (Brachypodium distachyon) silicon (Si) accumulation and the consequences for insect herbivore (Helicoverpa armigera). This study mainly focused on the hypothesis that reduced CO2 can increase Si in a grass and vice versa under elevated CO2. Moreover, we hypothesised that the variation in Si accumulation under extreme CO2 conditions can affect insect herbivore differently. In our present study, we found that reduced CO2 increased foliar Si accumulation, which was associated with decreased herbivore performance relative to elevated CO2.

本数据集为一份Excel文件，围绕大气二氧化碳（CO₂）对草本植物二穗短柄草（Brachypodium distachyon）硅（Si）积累的影响，以及该影响对植食性昆虫棉铃虫（Helicoverpa armigera）产生的后续效应展开相关研究。本研究核心聚焦于如下假说：当大气CO₂浓度降低时，草本植物的硅积累量会提升；而在CO₂浓度升高的条件下则反之。此外，本研究还提出另一假说：极端CO₂浓度环境下的硅积累量变化，会对植食性昆虫产生差异化影响。在本研究中，我们发现：相较于CO₂浓度升高的组别，大气CO₂浓度降低会提升植物叶部的硅积累量，而该现象与植食性昆虫的生长表现下降存在关联。