Chemical and microbiological changes in Norway spruce deadwood during the early stage of decomposition as a function of exposure in an alpine setting
Alpine ecosystems are vulnerable to ever-changing environmental conditions, leading to shifts in vegetation distribution and composition with implications on soil functionality and carbon (C) turnover. Although deadwood represents an important global C stock, scarce information is available on how s...
Published in: | Arctic, Antarctic, and Alpine Research |
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ftdoajarticles:oai:doaj.org/article:3f36bb8c71714affade8bb5a592a86ce 2023-05-15T14:14:29+02:00 Chemical and microbiological changes in Norway spruce deadwood during the early stage of decomposition as a function of exposure in an alpine setting Tommaso Bardelli María Gómez-Brandón Flavio Fornasier Paola Arfaioli Markus Egli Giacomo Pietramellara Maria Teresa Ceccherini Heribert Insam Judith Ascher-Jenull 2018-01-01T00:00:00Z https://doi.org/10.1080/15230430.2018.1438347 https://doaj.org/article/3f36bb8c71714affade8bb5a592a86ce EN eng Taylor & Francis Group http://dx.doi.org/10.1080/15230430.2018.1438347 https://doaj.org/toc/1523-0430 https://doaj.org/toc/1938-4246 1523-0430 1938-4246 doi:10.1080/15230430.2018.1438347 https://doaj.org/article/3f36bb8c71714affade8bb5a592a86ce Arctic, Antarctic, and Alpine Research, Vol 50, Iss 1 (2018) wood decay enzyme activities fungal abundance nitrogen-fixing bacteria topsoil layer Environmental sciences GE1-350 Ecology QH540-549.5 article 2018 ftdoajarticles https://doi.org/10.1080/15230430.2018.1438347 2022-12-31T09:47:16Z Alpine ecosystems are vulnerable to ever-changing environmental conditions, leading to shifts in vegetation distribution and composition with implications on soil functionality and carbon (C) turnover. Although deadwood represents an important global C stock, scarce information is available on how slope exposure influences the wood-inhabiting microbiota throughout the decomposition process in an Alpine setting. We therefore evaluated the impact of slope exposure (north- vs. south-facing sites) on physicochemical and microbiological properties (microbial abundance based on real-time PCR: fungal 18S rRNA, dinitrogen reductase [nifH]; microbial biomass: double strand DNA; and microbial activity: hydrolytic enzyme activities of the main nutrient cycles) of Picea abies wood blocks and the underlying soil in a field experiment in the Italian Alps during a three-year period. Overall, a higher abundance of fungi and nitrogen-fixing bacteria was recorded in the soil at the north-facing site where cooler and moister conditions were observed. In contrast, no exposure effects were found for these two microbial groups in the wood blocks, while their abundance increased over time, accompanied by more acidic conditions with progressing decay. The impact of exposure was also enzyme specific and time dependent for both the P. abies wood blocks and the underlying soil. Article in Journal/Newspaper Antarctic and Alpine Research Arctic Directory of Open Access Journals: DOAJ Articles Norway Deadwood ENVELOPE(-117.453,-117.453,56.733,56.733) Arctic, Antarctic, and Alpine Research 50 1 e1438347 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
wood decay enzyme activities fungal abundance nitrogen-fixing bacteria topsoil layer Environmental sciences GE1-350 Ecology QH540-549.5 |
spellingShingle |
wood decay enzyme activities fungal abundance nitrogen-fixing bacteria topsoil layer Environmental sciences GE1-350 Ecology QH540-549.5 Tommaso Bardelli María Gómez-Brandón Flavio Fornasier Paola Arfaioli Markus Egli Giacomo Pietramellara Maria Teresa Ceccherini Heribert Insam Judith Ascher-Jenull Chemical and microbiological changes in Norway spruce deadwood during the early stage of decomposition as a function of exposure in an alpine setting |
topic_facet |
wood decay enzyme activities fungal abundance nitrogen-fixing bacteria topsoil layer Environmental sciences GE1-350 Ecology QH540-549.5 |
description |
Alpine ecosystems are vulnerable to ever-changing environmental conditions, leading to shifts in vegetation distribution and composition with implications on soil functionality and carbon (C) turnover. Although deadwood represents an important global C stock, scarce information is available on how slope exposure influences the wood-inhabiting microbiota throughout the decomposition process in an Alpine setting. We therefore evaluated the impact of slope exposure (north- vs. south-facing sites) on physicochemical and microbiological properties (microbial abundance based on real-time PCR: fungal 18S rRNA, dinitrogen reductase [nifH]; microbial biomass: double strand DNA; and microbial activity: hydrolytic enzyme activities of the main nutrient cycles) of Picea abies wood blocks and the underlying soil in a field experiment in the Italian Alps during a three-year period. Overall, a higher abundance of fungi and nitrogen-fixing bacteria was recorded in the soil at the north-facing site where cooler and moister conditions were observed. In contrast, no exposure effects were found for these two microbial groups in the wood blocks, while their abundance increased over time, accompanied by more acidic conditions with progressing decay. The impact of exposure was also enzyme specific and time dependent for both the P. abies wood blocks and the underlying soil. |
format |
Article in Journal/Newspaper |
author |
Tommaso Bardelli María Gómez-Brandón Flavio Fornasier Paola Arfaioli Markus Egli Giacomo Pietramellara Maria Teresa Ceccherini Heribert Insam Judith Ascher-Jenull |
author_facet |
Tommaso Bardelli María Gómez-Brandón Flavio Fornasier Paola Arfaioli Markus Egli Giacomo Pietramellara Maria Teresa Ceccherini Heribert Insam Judith Ascher-Jenull |
author_sort |
Tommaso Bardelli |
title |
Chemical and microbiological changes in Norway spruce deadwood during the early stage of decomposition as a function of exposure in an alpine setting |
title_short |
Chemical and microbiological changes in Norway spruce deadwood during the early stage of decomposition as a function of exposure in an alpine setting |
title_full |
Chemical and microbiological changes in Norway spruce deadwood during the early stage of decomposition as a function of exposure in an alpine setting |
title_fullStr |
Chemical and microbiological changes in Norway spruce deadwood during the early stage of decomposition as a function of exposure in an alpine setting |
title_full_unstemmed |
Chemical and microbiological changes in Norway spruce deadwood during the early stage of decomposition as a function of exposure in an alpine setting |
title_sort |
chemical and microbiological changes in norway spruce deadwood during the early stage of decomposition as a function of exposure in an alpine setting |
publisher |
Taylor & Francis Group |
publishDate |
2018 |
url |
https://doi.org/10.1080/15230430.2018.1438347 https://doaj.org/article/3f36bb8c71714affade8bb5a592a86ce |
long_lat |
ENVELOPE(-117.453,-117.453,56.733,56.733) |
geographic |
Norway Deadwood |
geographic_facet |
Norway Deadwood |
genre |
Antarctic and Alpine Research Arctic |
genre_facet |
Antarctic and Alpine Research Arctic |
op_source |
Arctic, Antarctic, and Alpine Research, Vol 50, Iss 1 (2018) |
op_relation |
http://dx.doi.org/10.1080/15230430.2018.1438347 https://doaj.org/toc/1523-0430 https://doaj.org/toc/1938-4246 1523-0430 1938-4246 doi:10.1080/15230430.2018.1438347 https://doaj.org/article/3f36bb8c71714affade8bb5a592a86ce |
op_doi |
https://doi.org/10.1080/15230430.2018.1438347 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
50 |
container_issue |
1 |
container_start_page |
e1438347 |
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1766286920772485120 |