Table S1 Fungi Isolated from the Roots of Wild and Cultivated Cymbidum Spp. and Their

Table S1 Fungi isolated from the roots of wild and cultivated Cymbidum spp. and their co-cultivation conditions with plantlets of C. hybridum ' Golden Boy ' at 42 days after inoculation (dai)

Code for fungal isolate / Isolation of orchid-associated fungi / Co-cultivation conditions with plantlets of C. hybridum(42 dai)
Orchid species/hybrida / Sampling location b / Growth of mycelial cushion / Hyphae coiling up the plantlets (Y/N) / Root growth of inoculated plantlets / Growth of the inoculated individual plantlet / Survival percent (%)
CL01 / C.goeringii (W) / HBYC / Sparse, creamy, submerged / No / Light yellow color, new root initiation, some branching roots / Dark green, new clustered plantlets / 100
CL02 / C.goeringii (W) / HBYC / Thick, yellowish brown / Yes / Dark and rotted / Withered / 0
CL03 / C.goeringii (W) / HBYC / Thick, creamy / No / No obvious elongation or new initiation / Yellow leaves / 80
CL04 / C.goeringii (W) / HBYC / Thick, white / Yes / Dark and rotted / Withered / 0
CL05 / C.goeringii (W) / HBYC / Thick, yellowish / No / No obvious elongation or new initiation / Yellow leaves / 100
CL06 / C.goeringii (W) / HBYC / Sparse, white / Yes / Dark and rotted / Yellow leaves / 0
CL07 / C.goeringii (W) / HBYC / Thick, white / Yes / Dark and rotted / Withered / 0
CL-d / C.goeringii (W) / HBYC / Sparse, yellowish / No / Brown, elongation of 0.8- 1.2 cm / Light green / 100
CL-A / C.goeringii (W) / HBYC / Thick, brown / No / Yellowish brown, elongation of 0.8- 1.2 cm / Light green / 100
CL-h / C.goeringii (W) / HBYC / Thick, yellowish / No / Yellowish brown, elongation of 1.0- 1.5 cm / Green / 100
ZH6c-1 / C.goeringii (W) / HBES / Sparse, creamy, submerged / No / Light yellow color, elongation of 0.8- 1.2 cm / Dark green / 100
ZH3A-3 / C.goeringii (W) / HBES / Thick, white / No / Sturdy, light yellow color, elongation of 3.0-4.0 cm / Dark green / 100
CL-O / C.goeringii (W) / HBYC / Sparse, pink purple / Yes / Brown / Yellowish leaves / 75
CL-R / C.goeringii (W) / HBYC / Sparse, pink purple / Yes / Brown / Yellowish leaves / 75
ZH5B / C.goeringii (W) / HBYC / Sparse, white / Yes / Black and rotted / Many yellow leaves / 0
ZH9A / C.goeringii (W) / HBYC / Thick, white / Yes / Black and rotted / Withered / 0
KCL203 / C.goeringii (W) / YN / Thick, white / No / No obvious elongation / Green / 100
CY5-1 / C. hybridum (cv.) / GD / Sparse, brown / No / Sturdy, new root initiation, elongation of2.5- 3.0 cm / Dark green / 100
CY5-3 / C. hybridum (cv.) / GD / Sparse, light brown / No / Sturdy, obvious elongation of 1.5- 2.0 cm / Dark green / 100
X3-1 / C. hybridum (cv.) / GD / Sparse, pink purple / Yes / Black and rotted / Yellow leaves / 25
JL01 / C. ensifolium (DC) / GD / Sparse, pink purple / Yes / Black and rotted / Yellow leaves / 25
QDH01 / C. floribundum(DC) / GZ / Thick, white / Yes / Black and rotted / Withered / 0
QDH02 / C. floribundum(DC) / GZ / Thick, grey / No / Rotted / Yellow leaves / 50
QDH03 / C. floribundum(DC) / GZ / Thick, yellowish brown / Yes / Dark and rotted / Withered / 0
QDH04 / C. floribundum(DC) / GZ / Thick, white / Yes / Yellow, no growth / Yellow leaves / 80
QXH01 / C. tracyanum(DC) / GZ / Thick , white / Yes / Brown / Yellow leaves / 70
QXH02 / C. tracyanum(DC) / GZ / Thick , white / Yes / Rotted / Withered / 10
QHL01 / C. faberi (DC) / GZ / Sparse, white / Yes / Dark and rotted / Yellow leaves / 60
QHL02 / C. faberi (DC) / GZ / Thick , white / Yes / Dark and rotted / Most withered / 10
QHL03 / C. faberi (DC) / GZ / Thick, grey / No / No obvious growth / Yellow leaves / 40
dCL203 / C.goeringii (W) / YN / Thick , white / No / No obvious growth / Green / 100
dCLB-4 / C.goeringii (W) / YN / Thick , white / No / No obvious growth / Green / 80
dCL103 / C.goeringii (W) / YN / Thick , white / No / No obvious growth / Green / 100
ZZL202 / C. nanulum (W) / YN / Thick , white / No / Dark brown / Yellow leaves / 100

aLetters in parentheses represent codes for the origin of root samples used for isolation of orchid-associated fungi . W means roots from wild plants; DC means root s from domesticated orchid plants; cv. means roots from cultivated micro-propagated plantlets.

b Locations are indicated by codes: HBYC represents Yichang district, Hubei Province, China; HBES represents Enshi district, Hubei Province, China; GD represents Guangdong Province ,China; GZ represents Guizhou Province ,China; YN represents Yunnan Province, China. Wild orchid plants are widely distributed in these sites.