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. 2021 Oct 15;12:731764. doi: 10.3389/fmicb.2021.731764

TABLE 2.

Topological indices of microbial co-occurrence network in different treatments.

Network indexes TIOH T4OH T4OI TICH T3CH T3CI
Total nodes 431 527 293 445 238 172
Total links 4,693 702 902 1,715 865 252
R square of power-law 0.117 0.896 0.826 0.857 0.767 0.917
Average degree (avgK) 39.272 4.186 2.664 7.708 7.269 2.93
Average clustering coefficient (avgCC) 0.692 0.189 0.163 0.383 0.424 0.135
Average path distance (GD) 3.839 11.174 4.891 5.256 4.639 5.413
Geodesic efficiency (E) 0.421 0.119 0.24 0.239 0.287 0.24
Harmonic geodesic distance (HD) 2.378 8.373 4.16 4.176 3.488 4.172
Maximal degree 86 13 28 53 35 18
Nodes with max degree OTU221; OTU70 OTU82227 OTU14044 OTU6001 OTU339 OTU808 OTU63877
Centralization of degree (CD) 0.198 0.02 0.056 0.102 0.118 0.089
Maximal betweenness 3,288.704 20,108.758 9,076.833 29,377.169 5,391.234 2,288.825
Nodes with max betweenness OTU68 3,694,599 OTU771 OTU2725 OTU98 OTU34635
Centralization of betweenness (CB) 0.107 0.136 0.093 0.292 0.183 0.143
Maximal stress centrality 37,949,354 58,862 79,052 279,209 179,439 12,783
Nodes with max stress centrality OTU68 334,296 OTU771 OTU2725 OTU98 OTU63877
Centralization of stress centrality (CS) 0.107 0.136 0.093 0.292 0.183 0.143
Maximal eigenvector centrality 37,949,354 58,862 79,052 279,209 179,439 12,783
Nodes with max eigenvector centrality OTU68 334,296 OTU771 OTU2725 OTU98 OTU63877
Centralization of eigenvector centrality (CE) 1,240.599 0.396 0.802 2.763 6.208 0.807
Density (D) 0.129 0.342 0.348 0.203 0.269 0.366
Reciprocity 1 1 1 1 1 1
Transitivity (Trans) 0.776 0.388 0.132 0.534 0.492 0.287
Connectedness (Con) 0.811 0.994 0.988 0.98 0.961 0.98
Efficiency 0.811 0.994 0.988 0.98 0.961 0.98
Hierarchy 0 0 0 0 0 0
Lubness 1 1 1 1 1 1

TIOH stands for initially healthy plants in the organic system greenhouse, T4OH stands for healthy plants in the organic system greenhouse, T4OI stands for diseased plants in the organic system greenhouse, TICH stands for initially healthy, T3CH stands for healthy at last, and T3CI stands for diseased at last in the conventional greenhouse.

T1, seedling phase; T3, fruiting phase; T4, harvesting phase.