Nitrogen and carbon isotopes in Finnish (Kilpisjarvi, Kevo) ectomycorrhizal fungi
We analyzed %C, %N, δ13C, δ15N, and C: N stoichiometry of 12 species of ectomycorrhizal sporocarps of collected from Betula-dominated stands in northern Finland from 1971 to 1983. These were archived specimens originally collected during fieldwork by Esteri Ohenoja and Katriina Bendiksen from the Un...
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ftdatacite:10.17632/75vrr7y43p 2023-05-15T17:42:51+02:00 Nitrogen and carbon isotopes in Finnish (Kilpisjarvi, Kevo) ectomycorrhizal fungi Hobbie, Erik 2021 https://dx.doi.org/10.17632/75vrr7y43p https://data.mendeley.com/datasets/75vrr7y43p unknown Mendeley https://dx.doi.org/10.17632/75vrr7y43p.1 Creative Commons Attribution 4.0 International info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Ecology FOS Biological sciences Mycorrhiza Nitrogen Carbon Forest dataset Dataset 2021 ftdatacite https://doi.org/10.17632/75vrr7y43p https://doi.org/10.17632/75vrr7y43p.1 2021-11-05T12:55:41Z We analyzed %C, %N, δ13C, δ15N, and C: N stoichiometry of 12 species of ectomycorrhizal sporocarps of collected from Betula-dominated stands in northern Finland from 1971 to 1983. These were archived specimens originally collected during fieldwork by Esteri Ohenoja and Katriina Bendiksen from the University of Oulu. We hypothesized that functional attributes of ectomycorrhizal fungi such as hydrophobicity of ectomycorrhizae and weather conditions could influence sporocarp δ13C, δ15N, and C: N. Taxa with hydrophobic ectomycorrhizae were higher in δ15N and increased more in δ13C with increasing nitrogen concentration than taxa with hydrophilic ectomycorrhizae, reflecting the uptake of 13C- and 15N-enriched organic N by hydrophobic taxa. Sporocarp δ13C correlated negatively with average daily precipitation and positively with average temperature and the daily temperature range for the three previous weeks. Sporocarp C/N correlated negatively with average daily precipitation for the three previous weeks but also negatively with the daily temperature range 4-6 weeks prior to collection. Sporocarp δ13C also correlated with site aspect, specifically Southness, with sporocarps from more southern-facing locations somewhat higher in δ13C. Similar patterns in sporocarp C/N and δ13C indicated that fungal growth and C dynamics respond rapidly to plant C supply as modulated by climate conditions. Precipitation and temperature variability appeared to affect plant photosynthesis and ectomycorrhizal carbon dynamics similarly. The attached files are: Appendix Methods-1. docx. This is the file describing isotopic analyses and standards used for quality assurance. Appendix 2-Data for regressions.txt. This is the data file used to run stepwise regression analyses. Appendix 3.xlsx. This shows the stepwise regression used for d13C (carbon isotopes) analysis. Appendix 6.xlsx. This shows the stepwise regression used for d15N (nitrogen isotopes) analysis. Appendix 7.xlsx. This shows the stepwise regression used for the natural log of C/N analysis. Dataset Northern Finland DataCite Metadata Store (German National Library of Science and Technology) Kevo ENVELOPE(27.020,27.020,69.758,69.758) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Ecology FOS Biological sciences Mycorrhiza Nitrogen Carbon Forest |
spellingShingle |
Ecology FOS Biological sciences Mycorrhiza Nitrogen Carbon Forest Hobbie, Erik Nitrogen and carbon isotopes in Finnish (Kilpisjarvi, Kevo) ectomycorrhizal fungi |
topic_facet |
Ecology FOS Biological sciences Mycorrhiza Nitrogen Carbon Forest |
description |
We analyzed %C, %N, δ13C, δ15N, and C: N stoichiometry of 12 species of ectomycorrhizal sporocarps of collected from Betula-dominated stands in northern Finland from 1971 to 1983. These were archived specimens originally collected during fieldwork by Esteri Ohenoja and Katriina Bendiksen from the University of Oulu. We hypothesized that functional attributes of ectomycorrhizal fungi such as hydrophobicity of ectomycorrhizae and weather conditions could influence sporocarp δ13C, δ15N, and C: N. Taxa with hydrophobic ectomycorrhizae were higher in δ15N and increased more in δ13C with increasing nitrogen concentration than taxa with hydrophilic ectomycorrhizae, reflecting the uptake of 13C- and 15N-enriched organic N by hydrophobic taxa. Sporocarp δ13C correlated negatively with average daily precipitation and positively with average temperature and the daily temperature range for the three previous weeks. Sporocarp C/N correlated negatively with average daily precipitation for the three previous weeks but also negatively with the daily temperature range 4-6 weeks prior to collection. Sporocarp δ13C also correlated with site aspect, specifically Southness, with sporocarps from more southern-facing locations somewhat higher in δ13C. Similar patterns in sporocarp C/N and δ13C indicated that fungal growth and C dynamics respond rapidly to plant C supply as modulated by climate conditions. Precipitation and temperature variability appeared to affect plant photosynthesis and ectomycorrhizal carbon dynamics similarly. The attached files are: Appendix Methods-1. docx. This is the file describing isotopic analyses and standards used for quality assurance. Appendix 2-Data for regressions.txt. This is the data file used to run stepwise regression analyses. Appendix 3.xlsx. This shows the stepwise regression used for d13C (carbon isotopes) analysis. Appendix 6.xlsx. This shows the stepwise regression used for d15N (nitrogen isotopes) analysis. Appendix 7.xlsx. This shows the stepwise regression used for the natural log of C/N analysis. |
format |
Dataset |
author |
Hobbie, Erik |
author_facet |
Hobbie, Erik |
author_sort |
Hobbie, Erik |
title |
Nitrogen and carbon isotopes in Finnish (Kilpisjarvi, Kevo) ectomycorrhizal fungi |
title_short |
Nitrogen and carbon isotopes in Finnish (Kilpisjarvi, Kevo) ectomycorrhizal fungi |
title_full |
Nitrogen and carbon isotopes in Finnish (Kilpisjarvi, Kevo) ectomycorrhizal fungi |
title_fullStr |
Nitrogen and carbon isotopes in Finnish (Kilpisjarvi, Kevo) ectomycorrhizal fungi |
title_full_unstemmed |
Nitrogen and carbon isotopes in Finnish (Kilpisjarvi, Kevo) ectomycorrhizal fungi |
title_sort |
nitrogen and carbon isotopes in finnish (kilpisjarvi, kevo) ectomycorrhizal fungi |
publisher |
Mendeley |
publishDate |
2021 |
url |
https://dx.doi.org/10.17632/75vrr7y43p https://data.mendeley.com/datasets/75vrr7y43p |
long_lat |
ENVELOPE(27.020,27.020,69.758,69.758) |
geographic |
Kevo |
geographic_facet |
Kevo |
genre |
Northern Finland |
genre_facet |
Northern Finland |
op_relation |
https://dx.doi.org/10.17632/75vrr7y43p.1 |
op_rights |
Creative Commons Attribution 4.0 International info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.17632/75vrr7y43p https://doi.org/10.17632/75vrr7y43p.1 |
_version_ |
1766144778920001536 |