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Table 2 Heavy metals concentration in the P. vittata roots from different sampling sites

From: Genetic diversity and characterization of arsenic-resistant endophytic bacteria isolated from Pteris vittata, an arsenic hyperaccumulator

Sampling site Cu (mg kg−1) Cd (mg kg−1) Zn (mg kg−1) Pb (mg kg− 1) As (mg kg− 1)
S1 11.1 ± 2.03c 8.02 ± 1.03c 157.1 ± 35.2b 93.3 ± 6.03d 31.3 ± 10.2c
S2 65.1 ± 5.12a 37.1 ± 3.12a 974.7 ± 65.5a 587.1 ± 22.1a 308.7 ± 12.3a
S3 57.7 ± 4.22a 31.7 ± 6.12ab 1035.4 ± 34.3a 499.3 ± 23.1b 241.6 ± 23.5a
S4 33.2 ± 7.01b 19.5 ± 5.05bc 984.6 ± 83.1a 162.8 ± 36.2d 102.2 ± 10.4b
S5 42.4 ± 4.21b 24.4 ± 3.22ab 995.1 ± 62.6a 344.6 ± 24.5c 125.2 ± 30.7b
  1. Data are mean ± SE (n = 3); different letters in the same column indicate statistically significant differences (SNK test, P < 0.05)