Plant Growth Regulation

, Volume 43, Issue 1, pp 93–96

Indole-3-acetic acid production by pink-pigmented facultative methylotrophic bacteria

  • Z.S. Omer
  • R. Tombolini
  • A. Broberg
  • B. Gerhardson
Article

DOI: 10.1023/B:GROW.0000038360.09079.ad

Cite this article as:
Omer, Z., Tombolini, R., Broberg, A. et al. Plant Growth Regulation (2004) 43: 93. doi:10.1023/B:GROW.0000038360.09079.ad

Abstract

In examining the presence of indole-3-acetic acid (IAA) in supernatants of pink-pigmented facultativemethylotrophic (PPFMs) bacterial cultures, three out of the 16 isolates tested showed a positive reaction ina colorimetric assay. The presence was further unambiguously con?rmed by high-performance liquidchromatography in combination with NMR. The IAA production was signi?cantly stimulated byL-tryptophan. These results prove that PPFM bacteria are able to produce the plant hormone IAA.

AuxinHPLCL-tryptophanMethylobacterium

Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • Z.S. Omer
    • 1
  • R. Tombolini
    • 1
  • A. Broberg
    • 2
  • B. Gerhardson
    • 1
  1. 1.Plant Pathology and Biocontrol UnitUppsalaSweden
  2. 2.Department of ChemistrySLUUppsalaSweden