Fig. 4.

Total soluble protein contents and the activities of key enzymes involved in C and N metabolism in nodules of chickpea plants. Chickpea seedlings were inoculated with either McCP-31 or MmSWR19 strain and grown under Pi-sufficient (+P) or -deficient (−P) conditions. (A) Total soluble protein, (B) SS, (C) UDP-GPP, (D) PEPC, (E) MDH, (F) NAD-ME, (G) AAT, (H) GS, (I) NADH-GOGAT, (J) NADH-GDH, (K) G6PDH, (L) 6PGDH, (M) NADP-ICDH, (N) NR, and (O) AI. Data presented are the means ± SE of four independent biological replicates. Data with different letters reveal significant differences as measured by a Duncan’s multiple range test (P ≤ 0.05). NFW, nodule fresh weight.