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. 2015 Sep;88:257–267. doi: 10.1016/j.soilbio.2015.05.025

Table 3.

Microbial EPS concentration (based upon biomass-ATP and colorimetric analyses of EPS extracts).

Treatment ATP before EPS extraction* (nmol g−1 soil) ATP after EPS extraction* (nmol g−1 soil) EPS-polysaccharide (μg nmol−1 ATP) EPS-protein (μg nmol−1 ATP)
0 5.42 ± 0.13b 4.61 ± 0.59b 86.55y 32.56f
C 4.09 ± 0.74b 4.72 ± 0.16b 143.92x 49.95e
N 5.27 ± 0.51b 4.37 ± 0.46b 91.54y 33.42f
CN 11.84 ± 3.18a 9.69 ± 0.59a 48.12z 19.79g

ab xyz efg means with same letter are not statistically different.

l.s.d's (α=0.05): ATP treatment effect = 1.60 nmol g−1 soil; EPS-polysaccharide = 21.6 μg nmol−1 ATP; EPS-protein = 8.7 μg nmol−1 ATP.

*

No statistically significant effect of comparison ATP before vs. after EPS extraction (P = 0.13).