Table 2.

Indicator species test.

	Times of appearance in
OTUs	Roots	Rhizomes	Leaves	All	Cluster	Indicator value	Probability
OTU_15	1	4	12	17	Leaves	0.1344	0.001
OTU_14	7	5	17	29	Leaves	0.1612	0.004
OTU_33	5	9	13	27	Leaves	0.0994	0.186
OTU_1	0	0	2	2	Leaves	0.0323	0.209
OTU_5	0	0	2	2	Leaves	0.0323	0.216
OTU_7	6	1	7	14	Leaves	0.0579	0.232
OTU_16	5	5	8	18	Leaves	0.0571	0.482
OTU_6	12	7	12	31	Leaves	0.0756	0.63
OTU_11	3	5	6	14	Leaves	0.0408	0.698
OTU_34	0	8	0	8	Rhizomes	0.1404	0.001
OTU_4	15	21	6	42	Rhizomes	0.197	0.005
OTU_19	0	4	0	4	Rhizomes	0.0702	0.011
OTU_10	5	13	6	24	Rhizomes	0.1302	0.019
OTU_12	10	26	25	61	Rhizomes	0.2063	0.019
OTU_31	0	2	0	2	Rhizomes	0.0351	0.074
OTU_23	1	3	0	4	Rhizomes	0.041	0.079
OTU_17	0	2	0	2	Rhizomes	0.0351	0.095
OTU_21	1	2	0	3	Rhizomes	0.0246	0.199
OTU_25	2	3	2	7	Rhizomes	0.0241	0.675
OTU_9	1	2	2	5	Rhizomes	0.015	0.875
OTU_26	39	13	21	73	Roots	0.2949	0.001
OTU_29	24	2	0	26	Roots	0.3263	0.001
OTU_30	13	2	0	15	Roots	0.1643	0.001
OTU_27	14	0	8	22	Roots	0.1292	0.004
OTU_2	14	1	5	20	Roots	0.1422	0.005
OTU_24	17	8	1	26	Roots	0.1569	0.006
OTU_8	7	2	2	11	Roots	0.0635	0.104
OTU_32	3	0	0	3	Roots	0.0448	0.136
OTU_18	11	3	7	21	Roots	0.0818	0.157
OTU_20	11	3	9	23	Roots	0.0745	0.288
OTU_22	5	0	4	9	Roots	0.04	0.289
OTU_13	18	12	11	41	Roots	0.1099	0.405
OTU_28	5	4	3	12	Roots	0.0288	0.921
OTU_3	1	0	0	1	Roots	0.0149	1

Number of times each OTU was found in each tissue class, and in total. Cluster indicates the group for which each OTU is a likely indicator, with the indicator value and the associated probability. Statistically significant indicator species shown in bold.