Lettl A, Langkramer O, Lochman V, Jaks M
Folia Microbiol (Praha). 1981;26(1):29-36. doi: 10.1007/BF02927220.
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 10(4)--10(5), 10(2)--10(3) and 10(1)--10(3), 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.
在十个地点的云杉林的F、H和A层中研究了硫杆菌属的物种分布情况。测定了所选地点硫杆菌的浓度以及土壤将硫化合物氧化为硫酸盐的能力。F层表现出较高的氧化活性，H层活性较低，A层活性最低。活性在春季和秋季达到最大值。F、H和A层每克干土中分别含有10⁴ - 10⁵、10² - 10³和10¹ - 10³个硫杆菌。在所有地点的所有三个层中都检测到了排硫硫杆菌，氧化硫硫杆菌仅在所有F层中发现，仅在一些H层中发现，而在A层中未检测到。新型硫杆菌仅在一些样本中发现，与土层无关，反硝化硫杆菌根本未检测到。
