Table 3. Count and morphometric parameters of electrodense inclusions in O. anthropi DE2010 Cr(III) contaminated cultures.


         Sample        Number                  Diameter                    Area                         Volume                            Circularity
                                               (µm)                        (µm2)                        (µm3)                             (arbitrary units)

        0 mmol/L       5                       0.011 ± 2.45·10-4           3.80·10-4 ± 5.02·10-7        6.95·10-7 ± 1.88·10-11            0.938 ± 0.006

       0.5 mmol/L      6                       0.013 ± 3.67·10-4           5.31·10-4 ± 1.13·10-6        1.14·10-6 ± 6.36·10-11            0.950 ± 0.008

        2 mmol/L       8                       0.020 ± 0.003**+            0.001± 1.11·10-4 **+         4.17·10-6 ± 6.36·10-8 **+         0.945 ± 0.004

        5 mmol/L       20                      0.042 ± 0.008**++$$         0.005 ± 8.04·10-3 **++$$     3.86·10-5 ± 1.20·10-6 **++$$      0.931 ± 0.010

        7 mmol/L       24                      0.049 ± 0.007**++$$&&       0.007 ± 6.15·10-4 **++$$&&   6.14·10-5 ± 8.08·10-7 **++$$&&    0.945 ± 0.007

       10 mmol/L       31                      0.052 ± 0.009**++$$&&^      0.008 ± 0.001 **++$$&&^      7.34·10-5 ± 1.71·10-6 **++$$&&^   0.941 ± 0.005



Data are expressed as mean ± standard deviation (SD)
*p <0.05; **p <0.01: 0.5, 2, 5, 7, and 10 mmol/L treatments vs. control (0 mmol/L)
+
    p <0.05; ++p <0.01: 2, 5, 7, and 10 mmol/L treatments vs. 0.5 mmol/L treatment
$$
     p <0.01: 5, 7, and 10 mmol/L treatments vs. 2 mmol/L treatment
&&
     p <0.01: 7, and 10 mmol/L treatments vs. 5 mmol/L treatment
^
p <0.05: 7 treatment mmol/L vs. 10 mmol/L treatment