Pore characteristics in biological soil crusts are independent of extracellular polymeric substances
Biological soil crusts (biocrusts) are considered key players in hydrological cycles of many arid environments. The phototrophic organisms in these crusts excrete extracellular polymeric substances (EPSs), which bind soil particles together, thereby stabilizing the soil surface. In a previous work,...
Published in: | Soil Biology and Biochemistry |
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ftunivpisairis:oai:arpi.unipi.it:11568/1149725 2024-06-23T07:57:05+00:00 Pore characteristics in biological soil crusts are independent of extracellular polymeric substances Vincent, J. M. N. L. Felde ROSSI, FEDERICO Claudia, Colesie Daniel, Uteau Puschmann Rainer, Horn Peter, Felix Henningsen DE PHILIPPIS, ROBERTO Stephan, Peth Vincent, J. M. N. L. Felde Rossi, Federico Claudia, Colesie Daniel, Uteau Puschmann Rainer, Horn Peter, Felix Henningsen DE PHILIPPIS, Roberto Stephan, Peth 2016 STAMPA https://hdl.handle.net/11568/1149725 https://doi.org/10.1016/j.soilbio.2016.08.029 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84987623670&partnerID=40&md5=091ba54712c9a2595cb8c3c906248c9b eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000388775400029 volume:103 firstpage:294 lastpage:299 numberofpages:6 journal:SOIL BIOLOGY & BIOCHEMISTRY https://hdl.handle.net/11568/1149725 doi:10.1016/j.soilbio.2016.08.029 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84987623670 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84987623670&partnerID=40&md5=091ba54712c9a2595cb8c3c906248c9b Biocrust Extracellular polymeric substance Computed tomography Ecological restoration Soil structure Hydrological cycles info:eu-repo/semantics/article 2016 ftunivpisairis https://doi.org/10.1016/j.soilbio.2016.08.029 2024-06-03T23:51:29Z Biological soil crusts (biocrusts) are considered key players in hydrological cycles of many arid environments. The phototrophic organisms in these crusts excrete extracellular polymeric substances (EPSs), which bind soil particles together, thereby stabilizing the soil surface. In a previous work, the non-invasive extraction of EPSs in biocrusts resulted in a change of their hydrological behavior. As this was suspected to be the effect of a change in their pore structure, we employed high resolution X-ray micro tomography to investigate structural changes of biocrusts after EPS-extraction. We studied biocrusts from four different study sites in Svalbard, Germany, Israel and South Africa. Two different fractions of EPSs (tightly bound and colloidal) were extracted, using the same extraction method with two different solvents. Our results suggest that the extraction of EPSs did not result in structural differences at a resolution of 7 mu m. We therefore conclude that the previously observed change in hydrological behavior is likely to be the result of a change of the physico-chemical properties of the very surface of the crust, rather than of its inner structure. Article in Journal/Newspaper Svalbard ARPI - Archivio della Ricerca dell'Università di Pisa Svalbard Soil Biology and Biochemistry 103 294 299 |
institution |
Open Polar |
collection |
ARPI - Archivio della Ricerca dell'Università di Pisa |
op_collection_id |
ftunivpisairis |
language |
English |
topic |
Biocrust Extracellular polymeric substance Computed tomography Ecological restoration Soil structure Hydrological cycles |
spellingShingle |
Biocrust Extracellular polymeric substance Computed tomography Ecological restoration Soil structure Hydrological cycles Vincent, J. M. N. L. Felde ROSSI, FEDERICO Claudia, Colesie Daniel, Uteau Puschmann Rainer, Horn Peter, Felix Henningsen DE PHILIPPIS, ROBERTO Stephan, Peth Pore characteristics in biological soil crusts are independent of extracellular polymeric substances |
topic_facet |
Biocrust Extracellular polymeric substance Computed tomography Ecological restoration Soil structure Hydrological cycles |
description |
Biological soil crusts (biocrusts) are considered key players in hydrological cycles of many arid environments. The phototrophic organisms in these crusts excrete extracellular polymeric substances (EPSs), which bind soil particles together, thereby stabilizing the soil surface. In a previous work, the non-invasive extraction of EPSs in biocrusts resulted in a change of their hydrological behavior. As this was suspected to be the effect of a change in their pore structure, we employed high resolution X-ray micro tomography to investigate structural changes of biocrusts after EPS-extraction. We studied biocrusts from four different study sites in Svalbard, Germany, Israel and South Africa. Two different fractions of EPSs (tightly bound and colloidal) were extracted, using the same extraction method with two different solvents. Our results suggest that the extraction of EPSs did not result in structural differences at a resolution of 7 mu m. We therefore conclude that the previously observed change in hydrological behavior is likely to be the result of a change of the physico-chemical properties of the very surface of the crust, rather than of its inner structure. |
author2 |
Vincent, J. M. N. L. Felde Rossi, Federico Claudia, Colesie Daniel, Uteau Puschmann Rainer, Horn Peter, Felix Henningsen DE PHILIPPIS, Roberto Stephan, Peth |
format |
Article in Journal/Newspaper |
author |
Vincent, J. M. N. L. Felde ROSSI, FEDERICO Claudia, Colesie Daniel, Uteau Puschmann Rainer, Horn Peter, Felix Henningsen DE PHILIPPIS, ROBERTO Stephan, Peth |
author_facet |
Vincent, J. M. N. L. Felde ROSSI, FEDERICO Claudia, Colesie Daniel, Uteau Puschmann Rainer, Horn Peter, Felix Henningsen DE PHILIPPIS, ROBERTO Stephan, Peth |
author_sort |
Vincent, J. M. N. L. Felde |
title |
Pore characteristics in biological soil crusts are independent of extracellular polymeric substances |
title_short |
Pore characteristics in biological soil crusts are independent of extracellular polymeric substances |
title_full |
Pore characteristics in biological soil crusts are independent of extracellular polymeric substances |
title_fullStr |
Pore characteristics in biological soil crusts are independent of extracellular polymeric substances |
title_full_unstemmed |
Pore characteristics in biological soil crusts are independent of extracellular polymeric substances |
title_sort |
pore characteristics in biological soil crusts are independent of extracellular polymeric substances |
publishDate |
2016 |
url |
https://hdl.handle.net/11568/1149725 https://doi.org/10.1016/j.soilbio.2016.08.029 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84987623670&partnerID=40&md5=091ba54712c9a2595cb8c3c906248c9b |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
Svalbard |
genre_facet |
Svalbard |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000388775400029 volume:103 firstpage:294 lastpage:299 numberofpages:6 journal:SOIL BIOLOGY & BIOCHEMISTRY https://hdl.handle.net/11568/1149725 doi:10.1016/j.soilbio.2016.08.029 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84987623670 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84987623670&partnerID=40&md5=091ba54712c9a2595cb8c3c906248c9b |
op_doi |
https://doi.org/10.1016/j.soilbio.2016.08.029 |
container_title |
Soil Biology and Biochemistry |
container_volume |
103 |
container_start_page |
294 |
op_container_end_page |
299 |
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1802650546132221952 |