Feather moss nitrogen acquisition across natural fertility gradients in boreal forests

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Feather moss nitrogen acquisition across natural fertility gradients in boreal forests. / Rousk, Kathrin; Rousk, Johannes; Jones, Davey L.; Zackrisson, Olle; DeLuca, Thomas H.

In: Soil Biology & Biochemistry, Vol. 61, 2013, p. 86-95.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Rousk, K, Rousk, J, Jones, DL, Zackrisson, O & DeLuca, TH 2013, 'Feather moss nitrogen acquisition across natural fertility gradients in boreal forests', Soil Biology & Biochemistry, vol. 61, pp. 86-95. https://doi.org/10.1016/j.soilbio.2013.02.011

APA

Rousk, K., Rousk, J., Jones, D. L., Zackrisson, O., & DeLuca, T. H. (2013). Feather moss nitrogen acquisition across natural fertility gradients in boreal forests. Soil Biology & Biochemistry, 61, 86-95. https://doi.org/10.1016/j.soilbio.2013.02.011

Vancouver

Rousk K, Rousk J, Jones DL, Zackrisson O, DeLuca TH. Feather moss nitrogen acquisition across natural fertility gradients in boreal forests. Soil Biology & Biochemistry. 2013;61:86-95. https://doi.org/10.1016/j.soilbio.2013.02.011

Author

Rousk, Kathrin ; Rousk, Johannes ; Jones, Davey L. ; Zackrisson, Olle ; DeLuca, Thomas H. / Feather moss nitrogen acquisition across natural fertility gradients in boreal forests. In: Soil Biology & Biochemistry. 2013 ; Vol. 61. pp. 86-95.

Bibtex

@article{a6606873a8a04125bfdab5caf42d06e7,
title = "Feather moss nitrogen acquisition across natural fertility gradients in boreal forests",
abstract = "Feather mosses utilize various sources of nitrogen (N): they absorb N deposited on leaf tissue, they host N fixing cyanobacteria, and they are able to take up N directly from soil. In addition to their importance as primary producers in boreal ecosystems, feather mosses play a significant role in N cycling. However, estimates of their ability to take up N from soil in situ are scarce. Further, connecting uptake of N from soil with N fixation could significantly improve our understanding of their role in ecosystem N cycling, but to date this issue has not been addressed. We report results from an uptake experiment in which we tracked C-carbon (C), N-alanine and N-ammonium chloride (NHCl) into feather moss (Pleurozium schreberi (Brid.) Mitt.)-soil cores taken along natural fertility gradients in Northern Sweden. The varying fertility conditions coincided with a N fixation gradient in the feather moss. We found that P. schreberi takes up C and N directly from soil. However, the moss did not show a preference for inorganic or organic N sources and only 1.4% of the added amino acid appeared to be taken up from soil in an intact form. No differences in uptake of C or N from soil along the fertility gradients were detected. Nitrogen fixation rates in the moss were thus not correlated with C or N-uptake from soil. Nitrogen fixation as well as uptake of C and N from soil seem to be unaffected by C or N availability in the soil, suggesting that the moss can cover its nutrient demand by absorption of throughfall N and via associated N-fixing cyanobacteria without soil-N supplementation. We suggest further, that the moss can represent a (temporary) N-sink in the boreal forest, and that the moss' mechanism of uptake and release thereby will characterize the ecosystem N cycle.",
author = "Kathrin Rousk and Johannes Rousk and Jones, {Davey L.} and Olle Zackrisson and DeLuca, {Thomas H.}",
year = "2013",
doi = "10.1016/j.soilbio.2013.02.011",
language = "English",
volume = "61",
pages = "86--95",
journal = "Soil Biology & Biochemistry",
issn = "0038-0717",
publisher = "Pergamon Press",

}

RIS

TY - JOUR

T1 - Feather moss nitrogen acquisition across natural fertility gradients in boreal forests

AU - Rousk, Kathrin

AU - Rousk, Johannes

AU - Jones, Davey L.

AU - Zackrisson, Olle

AU - DeLuca, Thomas H.

PY - 2013

Y1 - 2013

N2 - Feather mosses utilize various sources of nitrogen (N): they absorb N deposited on leaf tissue, they host N fixing cyanobacteria, and they are able to take up N directly from soil. In addition to their importance as primary producers in boreal ecosystems, feather mosses play a significant role in N cycling. However, estimates of their ability to take up N from soil in situ are scarce. Further, connecting uptake of N from soil with N fixation could significantly improve our understanding of their role in ecosystem N cycling, but to date this issue has not been addressed. We report results from an uptake experiment in which we tracked C-carbon (C), N-alanine and N-ammonium chloride (NHCl) into feather moss (Pleurozium schreberi (Brid.) Mitt.)-soil cores taken along natural fertility gradients in Northern Sweden. The varying fertility conditions coincided with a N fixation gradient in the feather moss. We found that P. schreberi takes up C and N directly from soil. However, the moss did not show a preference for inorganic or organic N sources and only 1.4% of the added amino acid appeared to be taken up from soil in an intact form. No differences in uptake of C or N from soil along the fertility gradients were detected. Nitrogen fixation rates in the moss were thus not correlated with C or N-uptake from soil. Nitrogen fixation as well as uptake of C and N from soil seem to be unaffected by C or N availability in the soil, suggesting that the moss can cover its nutrient demand by absorption of throughfall N and via associated N-fixing cyanobacteria without soil-N supplementation. We suggest further, that the moss can represent a (temporary) N-sink in the boreal forest, and that the moss' mechanism of uptake and release thereby will characterize the ecosystem N cycle.

AB - Feather mosses utilize various sources of nitrogen (N): they absorb N deposited on leaf tissue, they host N fixing cyanobacteria, and they are able to take up N directly from soil. In addition to their importance as primary producers in boreal ecosystems, feather mosses play a significant role in N cycling. However, estimates of their ability to take up N from soil in situ are scarce. Further, connecting uptake of N from soil with N fixation could significantly improve our understanding of their role in ecosystem N cycling, but to date this issue has not been addressed. We report results from an uptake experiment in which we tracked C-carbon (C), N-alanine and N-ammonium chloride (NHCl) into feather moss (Pleurozium schreberi (Brid.) Mitt.)-soil cores taken along natural fertility gradients in Northern Sweden. The varying fertility conditions coincided with a N fixation gradient in the feather moss. We found that P. schreberi takes up C and N directly from soil. However, the moss did not show a preference for inorganic or organic N sources and only 1.4% of the added amino acid appeared to be taken up from soil in an intact form. No differences in uptake of C or N from soil along the fertility gradients were detected. Nitrogen fixation rates in the moss were thus not correlated with C or N-uptake from soil. Nitrogen fixation as well as uptake of C and N from soil seem to be unaffected by C or N availability in the soil, suggesting that the moss can cover its nutrient demand by absorption of throughfall N and via associated N-fixing cyanobacteria without soil-N supplementation. We suggest further, that the moss can represent a (temporary) N-sink in the boreal forest, and that the moss' mechanism of uptake and release thereby will characterize the ecosystem N cycle.

UR - http://www.scopus.com/inward/record.url?scp=84875273066&partnerID=8YFLogxK

U2 - 10.1016/j.soilbio.2013.02.011

DO - 10.1016/j.soilbio.2013.02.011

M3 - Journal article

AN - SCOPUS:84875273066

VL - 61

SP - 86

EP - 95

JO - Soil Biology & Biochemistry

JF - Soil Biology & Biochemistry

SN - 0038-0717

ER -

ID: 97386389