Laccase Gene Composition and Relative Abundance in Oak Forest Soil is not Affected by Short-Term Nitrogen Fertilization

@article{Lauber2008LaccaseGC,
  title={Laccase Gene Composition and Relative Abundance in Oak Forest Soil is not Affected by Short-Term Nitrogen Fertilization},
  author={Christian L. Lauber and Robert L. Sinsabaugh and Donald R. Zak},
  journal={Microbial Ecology},
  year={2008},
  volume={57},
  pages={50-57}
}
Anthropogenic nitrogen (N) deposition affects a wide range of soil processes including phenol oxidase (PO) activity and soil organic matter dynamics. Depression of phenol oxidase activity in response to N saturation is believed to be mediated by the activity of white-rot basidiomycetes, whose production of extracellular oxidative enzymes can be limited by high N availability. We examined the effect of short-term N deposition on basidiomycete laccase gene diversity and relative abundance in… Expand
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References

SHOWING 1-10 OF 44 REFERENCES
Microbial Community Structure and Oxidative Enzyme Activity in Nitrogen-amended North Temperate Forest Soils
TLDR
The response of litter and soil microbial communities to high levels of N amendment in three types of northern temperate forest suggests that N inhibition of oxidative activity involves more than the repression of ligninase expression by white-rot basidiomycetes. Expand
Molecular analysis of fungal communities and laccase genes in decomposing litter reveals differences among forest types but no impact of nitrogen deposition.
TLDR
The observations indicate that the previously detected accumulation of soil organic matter in the high-lignin system may be driven by effects of N deposition on organisms in the mineral soil, rather than on organisms residing in the forest floor. Expand
Extracellular Enzyme Activities and Soil Organic Matter Dynamics for Northern Hardwood Forests receiving Simulated Nitrogen Deposition
Anthropogenic nitrogen enrichment alters decomposition processes that control the flux of carbon (C) and nitrogen (N) from soil organic matter (SOM) pools. To link N-driven changes in SOM toExpand
Does Atmospheric NO3− Deposition Alter the Abundance and Activity of Ligninolytic Fungi in Forest Soils?
Although field studies have demonstrated an ecosystem-specific effect of experimental atmospheric nitrogen (N) deposition on litter decomposition, a mechanistic understanding of how ligninolyticExpand
Chronic nitrogen enrichment affects the structure and function of the soil microbial community in temperate hardwood and pine forests
TLDR
N enrichment altered the pattern of microbial substrate use, with the relative response to the addition of carboxylic acids and carbohydrates being significantly lower in the Ntreated plots, even after the data were normalized to account for differences in microbial biomass. Expand
Nitrogen deposition and dissolved organic carbon production in northern temperate forests
Abstract Deposition of anthropogenic nitrogen (N) alters the decomposition of organic matter in forest ecosystems by changing the expression of key microbial enzymes. We investigated the effects ofExpand
Patchiness and Spatial Distribution of Laccase Genes of Ectomycorrhizal, Saprotrophic, and Unknown Basidiomycetes in the Upper Horizons of a Mixed Forest Cambisol
TLDR
Soil fungi with laccase genes occupied different niches and showed strikingly variable distribution patterns, which likely reflected a part of the oxidative potential in soils. Expand
Nitrogen fertilization reduces diversity and alters community structure of active fungi in boreal ecosystems
TLDR
Changes in fungal diversity and community structure with starch addition to litter are observed, suggesting that N fertilization may affect fungal communities by altering plant carbon inputs, which could have important consequences for ecosystem processes such as decomposition and nutrient mineralization. Expand
NITROGEN DEPOSITION MODIFIES SOIL CARBON STORAGE THROUGH CHANGES IN MICROBIAL ENZYMATIC ACTIVITY
Atmospheric nitrogen (N) deposition derived from fossil-fuel combustion, land clearing, and biomass burning is occurring over large geographical regions on nearly every continent. Greater ecosystem NExpand
Atmospheric Nitrate Deposition, Microbial Community Composition, and Enzyme Activity in Northern Hardwood Forests
On a global scale, human activity has increased the atmospheric input of NO - 3 to many terrestrial ecosystems. Anthropogenic NO - 3 may be a potent modifier of ecosystem function, especially inExpand
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