Summary
Production of auxins and gibberellin-like substances by mycorrhizal fungi, bacteria and actinomycetes isolated from the mycorrhizosphere of Scots pine was studied. Chromatography and biossays were used.
Most of the organisms required tryptophan for auxins production. The highest biological activity exhibited substances located at Rf 0.2–0.4.
The organisms produced minute amounts of gibberellin-like substances which appeared at different Rf values. It was stated that auxins production is much more common among the root zone organisms of pine than the production of gibberellin-like substances.
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This research was carried out under problem MR.II.16 coordinated by the Institute of Dendrology, Polish Academy of Sciences.
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Strzelczyk, E., Pokojska-Burdziej, A. Production of auxins and gibberellin-like substances by mycorrhizal fungi, bacteria and actinomycetes isolated from soil and the mycorrhizosphere of pine (Pinus silvestris L.). Plant Soil 81, 185–194 (1984). https://doi.org/10.1007/BF02197150
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DOI: https://doi.org/10.1007/BF02197150