Details
| Original language | English |
|---|---|
| Pages (from-to) | 985-1002 |
| Number of pages | 18 |
| Journal | Journal of Soil Science and Plant Nutrition |
| Volume | 17 |
| Issue number | 4 |
| Publication status | Published - Dec 2017 |
Abstract
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 clearcut 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
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Agronomy and Crop Science
- Agricultural and Biological Sciences(all)
- Soil Science
- Agricultural and Biological Sciences(all)
- Plant Science
Sustainable Development Goals
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In: Journal of Soil Science and Plant Nutrition, Vol. 17, No. 4, 12.2017, p. 985-1002.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Functional land-use change effects on soil fungal communities in Chilean temperate rainforests
AU - Marin, Cesar
AU - Godoy, Roberto
AU - Valenzuela, Eduardo
AU - Schloter, Michael
AU - Wubet, Tesfaye
AU - Boy, Jens
AU - Gschwendtner, Silvia
N1 - Funding information: The authors thank Emily Giles for her help and critical comments on this manuscript. Special thanks to Mónica Barrientos and Juan Fuentealba for laboratory help and to the National Forest Corporation of Chile (CONAF), and the park ranger Nicolás Pa-checo. This work was supported by The National Commission for Scientific and Technological Research of Chile (National Doctorate Scholarship No. 21150047 to C.M.), by The National Fund for Scientific and Technological Development (Project No. 1141060 to C.M., R.B. and J.B.), and by The German Research Foundation - Priority Programs (Program 1803-EarthShape project to R.B. and J.B.). The authors thank Emily Giles for her help and critical comments on this manuscript. Special thanks to Mónica Barrientos and Juan Fuentealba for laboratory help and to the National Forest Corporation of Chile (CONAF), and the park ranger Nicolás Pacheco. This work was supported by The National Commission for Scientific and Technological Research of Chile (National Doctorate Scholarship No. 21150047 to C.M.), by The National Fund for Scientific and Technological Development (Project No. 1141060 to C.M., R.B. and J.B.), and by The German Research Foundation - Priority Programs (Program 1803-EarthShape project to R.B. and J.B.).
PY - 2017/12
Y1 - 2017/12
N2 - 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 clearcut 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.
AB - 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 clearcut 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.
KW - Ectomycorrhizal fungi
KW - Functional biodiversity
KW - Land-use change
KW - Nothofagus forest
KW - Plant pathogenic fungi
KW - Saprotrophic fungi
UR - http://www.scopus.com/inward/record.url?scp=85040528818&partnerID=8YFLogxK
U2 - 10.4067/S0718-95162017000400011
DO - 10.4067/S0718-95162017000400011
M3 - Article
VL - 17
SP - 985
EP - 1002
JO - Journal of Soil Science and Plant Nutrition
JF - Journal of Soil Science and Plant Nutrition
SN - 0718-9516
IS - 4
ER -