TABLE 2.
Effects of substrate amendments on the relative abundances of 17 soil fungal OTUs in 2009–2012.
| OTU number | Identity | Relative abundance (%)† |
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| No substrate | Glucose | Glycine | TSB | ||
| 1 | Eurotiomycete | 24.353 (16.915, 32.459) | 5.128 (3.021, 7.436)*** | 1.549 (0.673, 2.528)*** | 1.837 (0.912, 3.042)*** |
| 104 | Vishniacozyma victoriae | 7.663 (4.975, 10.451) | 1.505 (0.737, 2.540)* | 0.503 (0.075, 1.077)*** | 0.555 (0.139, 1.190)*** |
| 107 | Fungus | 6.841 (4.722, 8.962) | 0.908 (0.195, 2.348)** | 0.171 (0.041, 0.336)*** | 0.451 (0.012, 1.374)*** |
| 11 | Leucosporidium sp. | 3.657 (2.064, 5.357) | 0.090 (0.001, 0.213)*** | 0.379 (0.072, 0.850)** | 0.096 (0.015, 0.207)*** |
| 111 | Fungus | 2.176 (1.049, 3.648) | 0.070 (0.023, 0.136)*** | 0.892 (0.178, 2.122) | 0.621 (0.097, 1.585)* |
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| 124 | Ascomycete | 1.775 (0.808, 3.051) | 0.252 (0.121, 0.408) | 0.162 (0.010, 0.396)** | 0.232 (0.004, 0.668)** |
| 117 | Ascomycete | 1.554 (0.671, 2.577) | 0.275 (0.026, 0.623) | 0.034 (0.006, 0.070)* | 0.045 (0.002, 0.106) |
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| 101 | Fungus | 0.389 (0.107, 0.812) | 35.415 (26.685, 43.793)* | 0.514 (0.085, 1.391) | 4.152 (1.252, 8.763) |
| 100 | Austroplaca darbishirei | 8.542 (5.683, 12.590) | 22.879 (14.704, 31.807)* | 0.613 (0.229, 1.181)*** | 1.584 (0.745, 2.696)*** |
| 103 | Fungus | 0.201 (0.090, 0.332) | 19.551 (16.527, 22.718)*** | 1.959 (1.095, 2.977)** | 7.339 (5.444, 9.381)*** |
| 126 | Ascomycete | 0.029 (0.004, 0.059) | 2.946 (1.357, 4.976)** | 0.004 (0.001, 0.009) | 0.187 (0.037, 0.390) |
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| 0 | Pseudogymnoascus sp. | 1.147 (0.460, 2.010) | 0.351 (0.280, 0.420) | 75.070 (63.700, 84.900)*** | 6.007 (2.805, 9.619) |
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| 10 | Naganishia friedmannii | 0.832 (0.356, 1.595) | 0.857 (0.445, 1.379) | 0.321 (0.148, 0.617) | 41.335 (33.618, 49.057)*** |
| 105 | Mrakia frigida | 0.079 (0.033, 0.151) | 0.055 (0.033, 0.087) | 0.064 (0.045, 0.084) | 15.863 (8.535, 24.522)*** |
| 109 | Gelidatrema sp. | 0.024 (0.006, 0.048) | 1.427 (0.345, 2.786) | 0.025 (0.013, 0.042) | 7.471 (3.695, 11.764)*** |
| 12 | Vishniacozyma tephrensis | 0.138 (0.001, 0.420) | 0.467 (0.157, 0.948) | 0.004 (0.001, 0.007) | 3.260 (1.595, 5.141)*** |
| 121 | Fungus | 0.029 (0.001, 0.073) | 0.162 (0.060, 0.297) | 0.004 (0.002, 0.005) | 2.877 (1.037, 5.215)*** |
Note that OTUs are grouped and ordered by their relative abundances in unamended and glucose-, glycine- and TSB-amended soils, respectively. †Values are means of 16 replicates averaged over 2009–2012, with lower and upper 95% bootstrap confidence intervals in parentheses. Asterisks denote significant differences from the no substrate mean at *P < 0.05, **P < 0.01, and ***P < 0.001, following Bonferroni correction.