Tricholoma matsutake may take more nitrogen in the organic form than other ectomycorrhizal fungi for its sporocarp development: the isotopic evidence.

ABSTRACT: Tricholoma matsutake is an ectomycorrhizal (ECM) fungus capable of in vitro saprotrophic growth, but the sources of C and N used to generate sporocarps in vivo are not well understood. We examined natural abundance isotope data to investigate this phenomenon. For this purpose, C, N and their stable isotopes (¹³C, ¹⁵N) content of fungal sporocarps and their potential nutrient sources (i.e., foliage, litter, fine roots, wood, and soil) were investigated from two well-studied sites in Finland and Japan. Our results show that δ¹³C values of T. matsutake and other fungal groups are consistent with those of most studies, but a very high δ¹⁵N value (16.8‰ ± 2.3) is observed in T. matsutake. Such isotopic pattern of fungal δ¹⁵N suggests that m

SUBMITTER: Vaario LM 

PROVIDER: S-EPMC6311186 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature