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Table 3 Correlations between the abundance of bacterial genera or species and the growth or production of secondary metabolites in B. striata

From: Soil microorganism colonization influenced the growth and secondary metabolite accumulation of Bletilla striata (Thunb.) Rchb. F.

Taxon

Growth indicators

Secondary metabolite indicators

Root length (mm)

Dry weight of roots (g)

Dry weight of tubers (g)

Militarine in the tuber (%)

R-value

P-value

R-value

P-value

R-value

P-value

R-value

P-value

g_Reyranella

0.3024

0.5602

0.6660

0.1487

0.1229

0.8165

0.1615

0.7599

g_Rhizobacter

0.2966

0.5681

0.2665

0.6121

0.1389

0.7931

0.0905

0.8647

g_Microbacterium

0.6237

0.1858

0.3497

0.4969

0.3742

0.4649

0.1504

0.7760

g_Sphingomonas

0.4401

0.3824

0.1438

0.7858

0.9077

0.0124

0.9890

0.0002

g_Bradyrhizobium

0.4386

0.3842

0.5645

0.2431

0.9750

0.0009

0.8462

0.0336

g_Ralstonia

0.1932

0.7138

0.1766

0.7379

0.3216

0.5343

0.2732

0.6004

g_Brevundimonas

0.4124

0.4164

0.4849

0.3297

0.4900

0.3238

0.8125

0.0494

g_Aquabacterium

0.7724

0.0718

0.5399

0.2688

0.3622

0.4805

0.3206

0.5355

g_Chryseobacterium

0.5098

0.3015

0.6212

0.1880

0.3839

0.4523

0.3037

0.5585

s_Comamonas aquatica

0.4683

0.3489

0.1776

0.7299

0.5684

0.2392

0.7329

0.0974

g_Hyphomicrobium

0.5568

0.2512

0.4918

0.3217

0.8145

0.0484

0.9916

0.0001

s_Bradyrhizobium elkanii

0.4002

0.4317

0.4069

0.4233

0.9177

0.0099

0.9410

0.0051

s_Pseudomonas aeruginosa

0.6660

0.1487

0.9255

0.0081

0.8040

0.0538

0.7480

0.0873

s_Brevundimonas bullata

0.0710

0.8937

0.4436

0.3782

0.6256

0.1840

0.8822

0.0200

s_Rhizobium phaseoli

0.4429

0.3791

0.3895

0.4453

0.8039

0.0539

0.7622

0.0781

  1. Data are based on analyses of three B. striata samples from each soil type described in Fig. 2A. Root length, dry weight of roots and tubers served as an indicator of growth; militarin, as indicators of secondary metabolite in the tuber of B. striata. Correlations were considered significant if │R│ > 0.3 and P < 0.05