Cell wall compositional modifications of Miscanthus ecotypes in response to cold acclimation

► PAL activity was increased in the frost-tolerant Miscanthus clones under cold stress. ► CAD activity under cold stress was largest in the frost-tolerant clones. ► During cold acclimation, an increase in β-glucan was observed in all genotypes. ► GAX content changed in the frost tolerant clones under the ambient conditions.