Stable nitrogen isotope ratio in wood substrates and xylotrophic fungi in forest ecosystems of Western Siberia / Mukhin V.A., Voronin P.Y., Velivetskaya T.A., Ignat’ev A.V. // Russian Journal of Ecology. - 2014. - V. 45, l. 6. - P. 539-546.

ISSN:
10674136
Type:
Article
Abstract:
It has been shown that wood substrates are the main source of nitrogen for xylotrophic fungi, which have almost the same isotopic signature as their substrate. This fact and a strong positive correlation in nitrogen isotope composition between the substrates and fungi provide evidence for a closed type of nitrogen turnover in the wood-fungus system that is based on retention and repeated utilization of this element. Its isotope composition in the fungi depends on that in the substrate, which is enriched in the heavy isotope in deciduous wood and in the light isotope in coniferous wood. The nitrogen isotope composition in the fungi and wood substrates does not depend on the degree of wood mineralization or climatic conditions, and δ15N is not an indicator of fungal physiological activity or wood decomposition rate but rather a marker of the isotopic composition of nitrogen sources for the fungi. © 2014, Pleiades Publishing, Ltd.
Author keywords:
forest ecosystems; nitrogen; stable isotopes; Western Siberia; wood pool; xylotrophic fungi
Index keywords:
deciduous tree; forest ecosystem; fungus; isotopic composition; mineralization; nitrogen isotope; stable isotope; substrate; wood; Siberia; Fungi
DOI:
10.1134/S1067413614060095
Смотреть в Scopus:
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84919907429&doi=10.1134%2fS1067413614060095&partnerID=40&md5=1b487048f521ced3bcb8b94320e641b1
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Link https://www.scopus.com/inward/record.uri?eid=2-s2.0-84919907429&doi=10.1134%2fS1067413614060095&partnerID=40&md5=1b487048f521ced3bcb8b94320e641b1
Affiliations Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences, ul. Vos’mogo Marta 202, Yekaterinburg, Russian Federation; Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya ul. 35, Moscow, Russian Federation; Far East Geological Institute, Far East Branch, Russian Academy of Sciences, pr. 100 let Vladivostoku 159, Vladivostok, Russian Federation
Author Keywords forest ecosystems; nitrogen; stable isotopes; Western Siberia; wood pool; xylotrophic fungi
Funding Details 12-C-4-1032, RAS, Russian Academy of Sciences
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Correspondence Address Mukhin, V.A.; Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences, ul. Vos’mogo Marta 202, Russian Federation
Publisher Maik Nauka Publishing / Springer SBM
CODEN RJOEE
Language of Original Document English
Abbreviated Source Title Russ. J. Ecol.
Source Scopus