Tannin impacts on microbial diversity and the functioning of alpine soils: a multidisciplinary approach
International audience In alpine ecosystems, tannin-rich-litter decomposition occurs mainly under snow. With global change, variations in snowfall might affect soil temperature and microbial diversity with biogeochemical consequences on ecosystem processes. However, the relationships linking soil te...
Published in: | Environmental Microbiology |
---|---|
Main Authors: | , , , , , , , , , |
Other Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2008
|
Subjects: | |
Online Access: | https://hal.science/halsde-00281689 https://doi.org/10.1111/j.1462-2920.2007.01504.x |
id |
ftunigrenoble:oai:HAL:halsde-00281689v1 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
Université Grenoble Alpes: HAL |
op_collection_id |
ftunigrenoble |
language |
English |
topic |
Conformation polymorphism analysis polymerase-chain-reaction nitrogen dynamics litter decomposition bacterial community condensed tannin carbon storage tundra soils nutrient availability [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BID]Life Sciences [q-bio]/Biodiversity [SDV.EE]Life Sciences [q-bio]/Ecology environment |
spellingShingle |
Conformation polymorphism analysis polymerase-chain-reaction nitrogen dynamics litter decomposition bacterial community condensed tannin carbon storage tundra soils nutrient availability [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BID]Life Sciences [q-bio]/Biodiversity [SDV.EE]Life Sciences [q-bio]/Ecology environment Baptist, F. Zinger, L. Clement, J. C. Gallet, C. Guillemin, R. Martins, J. M. F. Sage, L. Shahnavaz, B. Choler, P. Geremia, R. Tannin impacts on microbial diversity and the functioning of alpine soils: a multidisciplinary approach |
topic_facet |
Conformation polymorphism analysis polymerase-chain-reaction nitrogen dynamics litter decomposition bacterial community condensed tannin carbon storage tundra soils nutrient availability [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BID]Life Sciences [q-bio]/Biodiversity [SDV.EE]Life Sciences [q-bio]/Ecology environment |
description |
International audience In alpine ecosystems, tannin-rich-litter decomposition occurs mainly under snow. With global change, variations in snowfall might affect soil temperature and microbial diversity with biogeochemical consequences on ecosystem processes. However, the relationships linking soil temperature and tannin degradation with soil microorganisms and nutrients fluxes remain poorly understood. Here, we combined biogeochemical and molecular profiling approaches to monitor tannin degradation, nutrient cycling and microbial communities (Bacteria, Crenarcheotes, Fungi) in undisturbed wintertime soil cores exposed to low temperature (0 degrees C/-6 degrees C), amended or not with tannins, extracted from Dryas octopetala. No toxic effect of tannins on microbial populations was found, indicating that they withstand phenolics from alpine vegetation litter. Additionally at -6 degrees C, higher carbon mineralization, higher protocatechuic acid concentration (intermediary metabolite of tannin catabolism), and changes in fungal phylogenetic composition showed that freezing temperatures may select fungi able to degrade D. octopetala's tannins. In contrast, negative net nitrogen mineralization rates were observed at -6 degrees C possibly due to a more efficient N immobilization by tannins than N production by microbial activities, and suggesting a decoupling between C and N mineralization. Our results confirmed tannins and soil temperatures as relevant controls of microbial catabolism which are crucial for alpine ecosystems functioning and carbon storage. |
author2 |
Laboratoire d'Ecologie Alpine (LECA) Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'étude des transferts en hydrologie et environnement (LTHE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS) Station alpine Joseph Fourier - UMS 3370 (SAJF) Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Baptist, F. Zinger, L. Clement, J. C. Gallet, C. Guillemin, R. Martins, J. M. F. Sage, L. Shahnavaz, B. Choler, P. Geremia, R. |
author_facet |
Baptist, F. Zinger, L. Clement, J. C. Gallet, C. Guillemin, R. Martins, J. M. F. Sage, L. Shahnavaz, B. Choler, P. Geremia, R. |
author_sort |
Baptist, F. |
title |
Tannin impacts on microbial diversity and the functioning of alpine soils: a multidisciplinary approach |
title_short |
Tannin impacts on microbial diversity and the functioning of alpine soils: a multidisciplinary approach |
title_full |
Tannin impacts on microbial diversity and the functioning of alpine soils: a multidisciplinary approach |
title_fullStr |
Tannin impacts on microbial diversity and the functioning of alpine soils: a multidisciplinary approach |
title_full_unstemmed |
Tannin impacts on microbial diversity and the functioning of alpine soils: a multidisciplinary approach |
title_sort |
tannin impacts on microbial diversity and the functioning of alpine soils: a multidisciplinary approach |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.science/halsde-00281689 https://doi.org/10.1111/j.1462-2920.2007.01504.x |
genre |
Dryas octopetala Tundra |
genre_facet |
Dryas octopetala Tundra |
op_source |
ISSN: 1462-2912 EISSN: 1462-2920 Environmental Microbiology https://hal.science/halsde-00281689 Environmental Microbiology, 2008, 10 (3), pp.799-809. ⟨10.1111/j.1462-2920.2007.01504.x⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1462-2920.2007.01504.x halsde-00281689 https://hal.science/halsde-00281689 doi:10.1111/j.1462-2920.2007.01504.x |
op_doi |
https://doi.org/10.1111/j.1462-2920.2007.01504.x |
container_title |
Environmental Microbiology |
container_volume |
10 |
container_issue |
3 |
container_start_page |
799 |
op_container_end_page |
809 |
_version_ |
1798845111250976768 |
spelling |
ftunigrenoble:oai:HAL:halsde-00281689v1 2024-05-12T08:02:59+00:00 Tannin impacts on microbial diversity and the functioning of alpine soils: a multidisciplinary approach Baptist, F. Zinger, L. Clement, J. C. Gallet, C. Guillemin, R. Martins, J. M. F. Sage, L. Shahnavaz, B. Choler, P. Geremia, R. Laboratoire d'Ecologie Alpine (LECA) Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'étude des transferts en hydrologie et environnement (LTHE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS) Station alpine Joseph Fourier - UMS 3370 (SAJF) Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS) 2008 https://hal.science/halsde-00281689 https://doi.org/10.1111/j.1462-2920.2007.01504.x en eng HAL CCSD Society for Applied Microbiology and Wiley-Blackwell info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1462-2920.2007.01504.x halsde-00281689 https://hal.science/halsde-00281689 doi:10.1111/j.1462-2920.2007.01504.x ISSN: 1462-2912 EISSN: 1462-2920 Environmental Microbiology https://hal.science/halsde-00281689 Environmental Microbiology, 2008, 10 (3), pp.799-809. ⟨10.1111/j.1462-2920.2007.01504.x⟩ Conformation polymorphism analysis polymerase-chain-reaction nitrogen dynamics litter decomposition bacterial community condensed tannin carbon storage tundra soils nutrient availability [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BID]Life Sciences [q-bio]/Biodiversity [SDV.EE]Life Sciences [q-bio]/Ecology environment info:eu-repo/semantics/article Journal articles 2008 ftunigrenoble https://doi.org/10.1111/j.1462-2920.2007.01504.x 2024-04-18T03:31:01Z International audience In alpine ecosystems, tannin-rich-litter decomposition occurs mainly under snow. With global change, variations in snowfall might affect soil temperature and microbial diversity with biogeochemical consequences on ecosystem processes. However, the relationships linking soil temperature and tannin degradation with soil microorganisms and nutrients fluxes remain poorly understood. Here, we combined biogeochemical and molecular profiling approaches to monitor tannin degradation, nutrient cycling and microbial communities (Bacteria, Crenarcheotes, Fungi) in undisturbed wintertime soil cores exposed to low temperature (0 degrees C/-6 degrees C), amended or not with tannins, extracted from Dryas octopetala. No toxic effect of tannins on microbial populations was found, indicating that they withstand phenolics from alpine vegetation litter. Additionally at -6 degrees C, higher carbon mineralization, higher protocatechuic acid concentration (intermediary metabolite of tannin catabolism), and changes in fungal phylogenetic composition showed that freezing temperatures may select fungi able to degrade D. octopetala's tannins. In contrast, negative net nitrogen mineralization rates were observed at -6 degrees C possibly due to a more efficient N immobilization by tannins than N production by microbial activities, and suggesting a decoupling between C and N mineralization. Our results confirmed tannins and soil temperatures as relevant controls of microbial catabolism which are crucial for alpine ecosystems functioning and carbon storage. Article in Journal/Newspaper Dryas octopetala Tundra Université Grenoble Alpes: HAL Environmental Microbiology 10 3 799 809 |