Chemical changes in organic matter after fungal colonization in a nitrogen fertilized and unfertilized Norway spruce forest

Nicolás, César; Almeida, Juan Pablo; Ellström, Magnus; Bahr, Adam; Bone, Sharon E.; Rosenstock, Nicholas P.; Bargar, John R.; Tunlid, Anders; Persson, Per; Wallander, Håkan

doi:10.1007/s11104-017-3324-8

Cited by 13 publications

(8 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, elevated inorganic nutrient availability may favour this fungal genus. Similarly to our study,Mason et al (2020) found subtle increases in Russulales after P fertilization (5 years) of an LP forest (Ohio, USA) Nicolás et al (2017). found no significant effects of N fertilization on Russula sp.…”

supporting

confidence: 85%

“…In boreal spruce forests, N fertilization caused a significant turnover of soil fungal communities, decreased fungal biomass, and increased the N:P ratio of the needles (Almeida et al 2019). Other studies reported only weak or no effect of N treatments on the fungal community structures (Nicolás et al 2017, Purahong et al 2018, Maaroufi et al 2019) and relationships with P mobilization were not detected (Forsmark et al 2020). Only few studies investigated fungal communities after P fertilization in forests.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Impact of nitrogen and phosphorus addition on resident soil and root mycobiomes in beech forests

Clausing

Likulunga

Janz

et al. 2020

Preprint

View full text Add to dashboard Cite

In forest soils, the pools of N and P available for microbes and plants are strongly dependent on soil properties. Here, we conducted a P and N fertilization experiment to disentangle the effects of nutrient availability on soil-residing, root-associated and ectomycorrhizal fungi in beech (Fagus sylvativa) forests differing in P availability. We tested the hypothesis that in P-poor forests, P fertilization leads to enhanced fungal diversity in soil and roots, resulting in enhanced P nutrition of beech and that N fertilization aggravates P shortage, shifting the fungal communities towards nitrophilic species. In response to fertilizer treatments (1x 50 kg ha−1 P, 5x 30 kg ha−1 N within 2 years), the labile P fractions increased in soil and roots, regardless of plant-available P in soil. Root total P decreased in response to N fertilization and root total P increased at the low P site in response to P addition. The relative abundances of ectomycorrhizal fungi, but not their species richness, increased in response to P or N addition in comparison with that of saprotrophic fungi. While some fungal orders (Trechisporales, Atheliales, Cantharellales) were moderately decreased in response to fertilizer treatments, Boletales increased in response to P and Russulaes to N addition. N or P fertilization resulted in functional trade-off, shifting away from saprotrophic towards symbiotrophic potential. Our results suggest that chronic exposure of forest ecosystems to increased nutrient inputs may overcome the resistance of the resident mycobiome structures resulting in nutritional imbalance and loss of forest ecosystem services.

show abstract

supporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Impact of nitrogen and phosphorus addition on resident soil and root mycobiomes in beech forests

Clausing

Likulunga

Janz

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…Indeed, the bags filled with sand reduce the ingrowth of nonmycorrhizal fungi compared to bags with sterile soil [ 57 ] and after the arrival of molecular methods that made it possible to analyse fungal communities inside sandbags, the results often confirmed that ectomycorrhizal fungi represent the majority of sandbag colonisers during the vegetation season [ 57 , 58 , 59 ]. Other reports, however, noticed the presence of other fungal guilds as well, indicating that the sandbags might reflect more the total fungal community in the studied soil than the ectomycorrhizal community only [ 31 , 56 , 60 , 61 , 62 ]. In our experimental system, we recorded a much smaller proportion of the ectomycorrhizal fungi on the total sandbag community compared to soil, especially in the winter months ( Figure 3 D).…”

Section: Discussionmentioning

confidence: 84%

Production of Fungal Mycelia in a Temperate Coniferous Forest Shows Distinct Seasonal Patterns

Štursová

Kohout

Human

et al. 2020

JoF

View full text Add to dashboard Cite

In temperate forests, climate seasonality restricts the photosynthetic activity of primary producers to the warm season from spring to autumn, while the cold season with temperatures below the freezing point represents a period of strongly reduced plant activity. Although soil microorganisms are active all-year-round, their expressions show seasonal patterns. This is especially visible on the ectomycorrhizal fungi, the most abundant guild of fungi in coniferous forests. We quantified the production of fungal mycelia using ingrowth sandbags in the organic layer of soil in temperate coniferous forest and analysed the composition of fungal communities in four consecutive seasons. We show that fungal biomass production is as low as 0.029 µg g−1 of sand in December–March, while it reaches 0.122 µg g−1 in June–September. The majority of fungi show distinct patterns of seasonal mycelial production, with most ectomycorrhizal fungi colonising ingrowth bags in the spring or summer, while the autumn and winter colonisation was mostly due to moulds. Our results indicate that fungal taxa differ in their seasonal patterns of mycelial production. Although fungal biomass turnover appears all-year-round, its rates are much faster in the period of plant activity than in the cold season.

show abstract

“…However, Russulales showed a significant decrease in response to the combined P + N treatment and increased during spring in soils fertilized only with P. Similar to our study, Mason et al (2020) found subtle increases in Russulales after P fertilization (5 years) in an LP forest (Ohio, USA). Nicolás et al (2017) found no significant effects of N fertilization on Russula sp. in a boreal forest.…”

Section: N and P Inputs Affect The Phylogenetic And Functional Compositions Of Fungal Assemblagesmentioning

confidence: 78%

“…In boreal spruce forests, N fertilization was shown to cause a significant turnover of soil fungal communities, decrease fungal biomass, and increase the N:P ratio of the needles (Allison et al 2007;Almeida et al 2019). Other studies reported only weak or no effect of N treatments on the fungal community composition (Maaroufi et al 2019;Nicolás et al 2017;Purahong et al 2018), and relationships with P mobilization were not detected (Forsmark et al, 2021). Empirical studies and theoretical models suggest that EMF in temperate beech forests are less sensitive to N deposition than conifers (Lilleskov et al 2019;Rotter et al 2020;Taylor et al 2000), but it is unknown how N fertilization affects EMF and other soil fungi when N availability is increased under P shortage.…”

Section: Introductionmentioning

confidence: 99%

Impact of nitrogen and phosphorus addition on resident soil and root mycobiomes in beech forests

et al. 2021

View full text Add to dashboard Cite

N and P are essential macronutrients for all organisms. How shifts in the availability of N or P affect fungal communities in temperate forests is not well understood. Here, we conducted a factorial P × N fertilization experiment to disentangle the effects of nutrient availability on soil-residing, root-associated, and ectomycorrhizal fungi in beech (Fagus sylvatica) forests differing in P availability. We tested the hypotheses that in P-poor forests, P fertilization leads to enhanced fungal diversity in soil and roots, resulting in enhanced P nutrition of beech, and that N fertilization aggravates P shortages, shifting the fungal communities toward nitrophilic species. In response to fertilizer treatments (1 × 50 kg ha−1 P and 5 × 30 kg ha−1 N within 2 years), the labile P fractions increased in soil and roots, regardless of plant-available P in soil. Root total P decreased in response to N fertilization and root total P increased in response to P addition at the low P site. Ectomycorrhizal species richness was unaffected by fertilizer treatments, but the relative abundances of ectomycorrhizal fungi increased in response to P or N addition. At the taxon level, fungal assemblages were unaffected by fertilizer treatments, but at the order level, different response patterns for saprotrophic fungi among soil and ectomycorrhizal fungi on roots were found. Boletales increased in response to P, and Russulales decreased under N + P addition. Our results suggest that trait conservatism in related species afforded resistance of the resident mycobiome composition to nutritional imbalances.

show abstract

Chemical changes in organic matter after fungal colonization in a nitrogen fertilized and unfertilized Norway spruce forest

Cited by 13 publications

References 56 publications

Impact of nitrogen and phosphorus addition on resident soil and root mycobiomes in beech forests

Impact of nitrogen and phosphorus addition on resident soil and root mycobiomes in beech forests

Production of Fungal Mycelia in a Temperate Coniferous Forest Shows Distinct Seasonal Patterns

Impact of nitrogen and phosphorus addition on resident soil and root mycobiomes in beech forests

Contact Info

Product

Resources

About