SciELO - Scientific Electronic Library Online

 
vol.17 issue4Factors affecting arbuscular mycorrhizal fungi of Chilean temperate rainforestsEfficiency of two inoculation methods of Pseudomonas putida on growth and yield of tomato plants author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Journal of soil science and plant nutrition

On-line version ISSN 0718-9516

Abstract

MARIN, César et al. Functional land-use change effects on soil fungal communities in Chilean temperate rainforests. J. Soil Sci. Plant Nutr. [online]. 2017, vol.17, n.4, pp.985-1002. ISSN 0718-9516.  http://dx.doi.org/10.4067/S0718-95162017000400011.

By reducing soil organic matter and litter input, land-use changes are predicted to decrease total soil fungal diversity, but at functional levels this have been poorly studied. It is expected, though, that increasing disturbance decreases saprotrophic and mycorrhizal fungi biodiversity. This study aimed to determine the effects of land-use changes on the phylogenetic and functional diversity of soil fungi in the Southern Andes. We assessed the fungal communities of Andosol topsoil at 1 cm and 10 cm soil depth. The soil samples were obtained from a gradient of anthropogenic disturbance; specifically, plots were located within pristine forest, overstory-managed, and clear-cut conditions. We used a cultivation-independent molecular barcoding approach to assess fungal diversity and identify 1,173 OTUs from which 401 were assigned to a functional guild. While we found higher phylogenetic richness in clear-cut conditions, these soils had higher relative abundances of plant pathogen fungi and lower relative abundances of saprotrophic and ectomycorrhizal fungi compared to the other treatments. The opposite pattern was found in pristine forest. Thus, fungal species richness itself does not seem to reflect ecosystem health. Interestingly though, the lower phylogenetic diversity found in pristine forest was compensated by a higher diversity of fungi involved in nutrient cycling.

Keywords : Ectomycorrhizal fungi; functional biodiversity; land-use change; Nothofagus forest; plant pathogenic fungi; saprotrophic fungi.

        · text in English     · English ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License