Folia Microbiologica

, 26:29 | Cite as

Thiobacilli and sulphate production from inorganic sulphur compounds in upper horizons of spruce forest soils

  • A. Lettl
  • O. Langkramer
  • V. Lochman
  • M. Jakš


The species representation of Thiobacilli was investigated in horizons F, H and A of spruce forest at ten localities. Concentrations of Thiobacilli in the selected localities and ability of the soils to oxidize sulphur compounds to sulphate were determined. Horizons F exhibited a high oxidative activity, a lower activity was found in horizon H and the lowest one was detected in horizon A. The activities showed spring and autumn maxima. Horizons F, H and A contained 104-105, 102-103 and 10l-103, respectively, Thiobacilli in 1 g dry soil.Thiobacillus thioparus was detected in all three horizons from all localities,T.thiooxidans was found in all horizons F, only in some horizons H and was not detected in horizons A.T.novellus was found only in some samples without any relation to the horizons,T. denitrificans was not detected at all.


Sulphur Compound Oxidative Activity Sulphite Much Probable Number Thiosulphate 
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Copyright information

© Institute of Microbiology, Academy of Sciences of the Czech Republic 1981

Authors and Affiliations

  • A. Lettl
    • 1
  • O. Langkramer
    • 1
  • V. Lochman
    • 1
  • M. Jakš
    • 1
  1. 1.Forestry and Game Management Research InstituteZbraslav-StrnadyCzechoslovakia

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