Figure and Table captions

FIGURE 1 Chemical properties and enzyme activities in the rhizosphere and bulk soils with different salinities. (a) Salinity, (b) pH, (c) Na+, (d) Mg2+, (e) K+, (f) Ca2+, (g) Cl-, (h) organic matter, (i) available phosphorus, (j) available potassium, (k) alkaline phosphatase, and (l) urease. Note: Asterisks denote significant differences (p ≤0.05). Means ± SE (n = 3). L, low-salinity soil; M, medium-salinity soil; H, high-salinity soil.
FIGURE 2 Venn diagrams of DEMs in Melia azedarach roots: (a) ESI+ mode, (b) ESI- mode. Note: RL- roots in low salinity soil, RM- roots in medium salinity soil, RH- roots in high salinity soil.
FIGURE 3 Volcano plots of DEMs in Melia azedarach roots. Note: RL- roots in low salinity soil, RM- roots in medium salinity soil, RH- roots in high salinity soil. Red represents up-regulated and blue represents down-regulated DEMs.
FIGURE 4 Enrichment diagram of Melia azedarach root DEMs in KEGG pathways. Note: RL- roots in low salinity soil, RM- roots in medium salinity soil, RH- roots in high salinity soil.