Table 1. The percentage of root length colonized by AMF (%RLC), AMF hyphal length density (HLD), AMF specie richness, AMF phylogenetic diversity (PD) and Shannon–Wiener index (mean ± standard error) in rhizosphere soil of S. purpurea, L. nanum and P. bifurca along the precipitation gradient in Tibetan alpine steppe.
| Plant/site | RLC(%) | HLD (m/g) | AMF specie richness | PD | Shannon–Wiener index |
|---|---|---|---|---|---|
| S. purpurea | |||||
| BG | 7 ± 3a | 15.33 ± 4.03bc | 6.46 ± 0.47b | 0.44 ± 0.04b | 1.02 ± 0.20a |
| NM | 34 ± 8b | 17.92 ± 1.48bc | 7.6 ± 0.85b | 0.51 ± 0.05b | 1.64 ± 0.07c |
| ZC | 10 ± 2a | 10.44 ± 1.56ba | 6.84 ± 0.47b | 0.46 ± 0.02b | 1.60 ± 0.10bc |
| GZ | 5 ± 4a | 5.63 ± 1.44a | 3.8 ± 0.85a | 0.28 ± 0.02a | 1.11 ± 0.05ab |
| GG | 31 ± 8b | 8.05 ± 1.55a | 7.22 ± 0.71b | 0.48 ± 0.09b | 1.23 ± 0.26abc |
| L. nanum | |||||
| BG | / | 14.23 ± 2.46b | 6.65 ± 0.55b | 0.59 ± 0.12a | 1.52 ± 0.12b |
| NM | / | 17.64 ± 2.62b | 7.13 ± 0.91b | 0.39 ± 0.05a | 1.33 ± 0.11b |
| ZC | / | 4.21 ± 0.86a | 6.84 ± 0.47b | 0.44 ± 0.03a | 1.51 ± 0.06b |
| GG | / | 2.42 ± 0.24a | 3.17 ± 0.63a | 0.34 ± 0.12a | 1.04 ± 0.08a |
| P. bifurca | |||||
| BG | / | 14.73 ± 2.68b | 7.6 ± 0.6b | 0.45 ± 0.03a | 1.37 ± 0.14a |
| NM | / | 9.07 ± 1.83ab | 7.6 ± 0.00b | 0.51 ± 0.02a | 1.56 ± 0.08a |
| ZC | / | 8.62 ± 1.75b | 6.84 ± 0.47b | 0.46 ± 0.03a | 1.33 ± 0.12a |
| GZ | / | 5.39 ± 1.28a | 4.56 ± 0.76a | 0.48 ± 0.08a | 1.33 ± 0.17a |
| site | / | * | * | – | * |
| plant species | / | – | – | – | – |
Data with different lowercase letters and “*” Indicate significant levels at P < 0.05. “–” Indicates no significance. “/” Means no data available.