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Microbial communities in local and transplanted soils along a latitudinal gradient

Hedenec, P., Jilkova, V., Lin, Q., Cajthaml, T., Filipova, A., Baldrian, P., Vetrovsky, T., Kristufek, V., Chronakova, A., Setala, H., Tsiafouli, M. A., Mortimer, S. R., Kukla, J. and Frouz, J. (2019) Microbial communities in local and transplanted soils along a latitudinal gradient. Catena, 173. pp. 456-464. ISSN 0341-8162

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To link to this item DOI: 10.1016/j.catena.2018.10.043


Factors shaping community structure of soil microbiota have been intensively studied; however, the pattern in community composition and structure of soil microbiota at large geographical scales and factors regulating its metabolic activity remains poorly understood. Here, we used a field transplantation experiments to investigate the effects of substrate and climatic conditions on basal soil respiration, microbial biomass C and diversity of soil microbiota by comparing local and transplanted soils along a latitudinal gradient. Soil samples collected in April 2008 at donor site (Sokolov, Czech Republic) in Central Europe were gamma-ray sterilized and transplanted to receptor sites in Europe and the USA in May and early June 2008. Soil samples were taken in June 2009 after one year of exposure and immediately prepared for laboratory analysis. Basal soil respiration in local soils increased from 22 to 42 mg CO2-C kg-1 h-1 with latitude while basal soil respiration in transplanted soils decreased with latitude from 32 to 19 mg CO2-C kg-1 h-1. The microbial biomass C in both transplanted and local soils decreased with latitude. Content of fungal and bacterial phospholipid fatty acids increased nearly twice with latitude in local soils. Shannon diversity index of fungal community decreased from 2.5 to 1.2 along the latitudinal gradient in transplanted soils while local soils increased from 0.9 to 2.4 with latitude. Based on our results, microbial activity is driven mainly by changes of the soil substrate along latitudinal and climatic gradients while microbial biomass is driven more by global climatic factors itself. The diversity of soil microbial communities is mostly affected by latitudinal and climatic factors while community structure is mostly shaped by substrate quality.

Item Type:Article
Divisions:Interdisciplinary centres and themes > Soil Research Centre
Life Sciences > School of Agriculture, Policy and Development > Department of Sustainable Land Management > Centre for Agri-environmental Research (CAER)
ID Code:80784
Uncontrolled Keywords:Soil microbiota; PLFA; microbial biomass C; microbial diversity; climatic gradient; DNA sequencing


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