Fig. 1From: Integration of the metabolome and transcriptome reveals the mechanism of resistance to low nitrogen supply in wild bermudagrass (Cynodon dactylon (L.) Pers.) rootsPhysiological responses of the two accessions under low N conditions. The soluble protein content (A), the free amino acid content (B), the starch content (C) and the sugar content (D) of roots were measured. Lowercase letters represent significant differences between the accessions and between plants that received different N treatments (P < 0.05)Back to article page