Fig. 1
From: Evidence for fungi and gold redox interaction under Earth surface conditions

Soil geochemical parameters of the gold anomaly and the adjacent reference area. a–i represent the values of total carbon, total nitrogen, soil pH, electrical conductivity, water content, the concentrations of gold, iron, calcium, and sulfur. The bars H, N, and A in each panel represent the data of the hotspots, the non-hotspots, and all spots of the gold anomaly, respectively. The significance of the differences between two sets of data was determined by an unpaired t-test (GraphPad Prism Version 7). The P value for gold content was based on a one-tailed t-test calculation. P < 0.05 was considered statistically significant. The error bar indicates the standard deviation