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. 2018 Dec 7;9:3028. doi: 10.3389/fmicb.2018.03028

Table 1.

Leaf area, chlorophylls concentration, colony-forming units, and diversity index of leaves and isolated epiphytic bacteria.

Plant species Leaf area (cm2 g-1) Chlorophyll (μg cm-2)
 Xanthophylls/carotenoids (μg cm-2) CFU cm-2 of fresh leaves Shannon index
a b total
B. veronicifolia MR      32.9ns   3.8∗      0.8ns     4.7∗   1.2∗  1.5 × 103∗      0.190 ns
NC 40.2 8.3 1.9 10.6 3.0 0.9 × 103 0.175
A. choisyi MR      6.9∗   6.7∗      1.4ns     8.3∗    2.0∗ 32.6 × 103∗      0.505 ns
NC 11.6 3.7 1.1   5.0 1.2 7.8 × 103 0.466
F. trinervia MR      4.1∗   3.3∗    0.4∗     3.8∗      1.0ns   16.2 × 103ns   0.334∗
NC 21.5 4.6 1.0   5.8 1.2 13.9 × 103 0.120
Gnaphalium sp. MR     10.5ns   5.3∗    4.2∗       9.9ns     0.6∗      8.2 × 103∗   0.141∗
NC 12.3 7.9 1.2   9.4 1.8    1.7 × 103 0.267

MR, mine residues; NC, non-contaminated control sites; CFU, colony-forming units; significant (∗) or non-significant (ns) difference between samples of mine residues and control sites in each plant species according to U test (p < 0.05).