Asymmetric response of root-associated fungal communities of an arbuscular mycorrhizal grass and an ectomycorrhizal tree to their coexistence in primary succession
The arbuscular mycorrhizal (AM) grass Calamagrostis epigejos and predominantly ectomycorrhizal (EcM) tree Salix caprea co-occur at post-mining sites spontaneously colonized by vegetation. During succession, AM herbaceous vegetation is replaced by predominantly EcM woody species. To better understand...
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Published in | Mycorrhiza Vol. 27; no. 8; pp. 775 - 789 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Berlin/Heidelberg
Springer Berlin Heidelberg
01.11.2017
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | The arbuscular mycorrhizal (AM) grass
Calamagrostis epigejos
and predominantly ectomycorrhizal (EcM) tree
Salix caprea
co-occur at post-mining sites spontaneously colonized by vegetation. During succession, AM herbaceous vegetation is replaced by predominantly EcM woody species. To better understand the interaction of AM and EcM plants during vegetation transition, we studied the reciprocal effects of these species’ coexistence on their root-associated fungi (RAF). We collected root and soil samples from three different microenvironments: stand of
C. epigejos
, under
S. caprea
canopy, and contact zone where roots of the two species interacted. RAF communities and mycorrhizal colonization were determined in sampled roots, and the soil was tested for EcM and AM inoculation potentials. Although the microenvironment significantly affected composition of the RAF communities in both plant species, the effect was greater in the case of
C. epigejos
RAF communities than in that of
S. caprea
RAF communities. The presence of
S. caprea
also significantly decreased AM fungal abundance in soil as well as AM colonization and richness of AM fungi in
C. epigejos
roots. Changes observed in the abundance and community composition of AM fungi might constitute an important factor in transition from AM-dominated to EcM-dominated vegetation during succession. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0940-6360 1432-1890 |
DOI: | 10.1007/s00572-017-0792-x |