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Table 3 Identification by ultrahigh-performance liquid chromatography-high-resolution mass spectrometry (UHPLC-HRMS/MS) of phytohormones produced by A. brasilense strains Ab-V5 and Ab-V6 after 14 days of growth on DYGS medium supplemented or not with tryptophan (TRP, 500 µg mL−1)

From: Phytohormones and induction of plant-stress tolerance and defense genes by seed and foliar inoculation with Azospirillum brasilense cells and metabolites promote maize growth

Treatment

IAAa

IBA

TOL

ILA

IPyA

IPA

Kin

GA3

JA

SA

Ab-V5

+b

−

+

+

−

−

−

*

*

+

Ab-V5 + TRP

+

−

+

+

−

*

−

−

−

+

Ab-V6

+

−

+

+

−

−

−

−

−

+

Ab-V6 +TRP

+

−

+

+

−

−

−

*

−

+

  1. aIndole-3-acetic acid (IAA), indole-3-butyric acid (IBA), indole-3-ethanol (TOL), indole-3-lactic acid (ILA), indole-3-pyruvic (IPyA), indole-3-propionic acid (IPA), kinetin (Kin), gibberellic acid (GA3), jasmonic acid (JA), salicylic acid (SA)
  2. b+ detected; − no detected; * low relation