Catabolic response and phospholipid fatty acid profiles as microbial tools to assess soil functioning
Microbial properties may help to provide an integrated view of changes in soil functioning associated with soil management or soil status. The fatty acid profiles of membrane phospholipids (PLFA) can give the composition of ecophysiological groups of soil microbial communities, while catabolic respo...
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| Format: | Artículo |
| Language: | Inglés |
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2017
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| Online Access: | http://hdl.handle.net/20.500.12123/1503 http://onlinelibrary.wiley.com/doi/10.1111/sum.12293/abstract |
| _version_ | 1855482899436929024 |
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| author | Romaniuk, Romina Ingrid Costantini, Alejandro Oscar Nannipieri, P. Giuffré, Lidia |
| author_browse | Costantini, Alejandro Oscar Giuffré, Lidia Nannipieri, P. Romaniuk, Romina Ingrid |
| author_facet | Romaniuk, Romina Ingrid Costantini, Alejandro Oscar Nannipieri, P. Giuffré, Lidia |
| author_sort | Romaniuk, Romina Ingrid |
| collection | INTA Digital |
| description | Microbial properties may help to provide an integrated view of changes in soil functioning associated with soil management or soil status. The fatty acid profiles of membrane phospholipids (PLFA) can give the composition of ecophysiological groups of soil microbial communities, while catabolic response profiles (CRP) estimate the heterotrophic functional diversity in soils, both relevant to the understanding of the role of micro-organisms in the functioning of the soil. The objectives of this study were (i) to evaluate the CRP and PLFA as microbial tools to characterize changes in soil functioning and (ii) clarify the relation among these microbial measurements, with other physical, chemical and biochemical soil properties. We compare the same soil subjected to different managements and degrees of erosion. An undisturbed soil (UN), an old pasture soil (OP) and soils under continuous cultivation (NT) with four different depth of A horizon: 25 cm (NT 25), 23 cm (NT 23), 19 cm (NT 19) and 14 cm (NT 14) were tested. Substrate-induced respiration of most substrates diminished when cropping pressure increased (UN > OP > NT), and soil catabolic evenness, as a diversity index, decreased by increasing production pressure and soil erosion. The correlation found among most of the measured physical, chemical and biochemical soil properties with the catabolic evenness showed the potential of this measurement to provide an integrated view of soil functioning. The PLFA analysis showed that the composition of microbial community denoting a partial recovery after 10 yr under grazed grassland. The stress indicators showed that farming practices increased microbial stress with the highest values found in the most eroded soils |
| format | Artículo |
| id | INTA1503 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | INTA15032019-03-21T18:04:12Z Catabolic response and phospholipid fatty acid profiles as microbial tools to assess soil functioning Romaniuk, Romina Ingrid Costantini, Alejandro Oscar Nannipieri, P. Giuffré, Lidia Suelo Fosfolípidos Acidos Grasos Catabolismo Soil Phospholipids Fatty Acids Catabolism Microbial properties may help to provide an integrated view of changes in soil functioning associated with soil management or soil status. The fatty acid profiles of membrane phospholipids (PLFA) can give the composition of ecophysiological groups of soil microbial communities, while catabolic response profiles (CRP) estimate the heterotrophic functional diversity in soils, both relevant to the understanding of the role of micro-organisms in the functioning of the soil. The objectives of this study were (i) to evaluate the CRP and PLFA as microbial tools to characterize changes in soil functioning and (ii) clarify the relation among these microbial measurements, with other physical, chemical and biochemical soil properties. We compare the same soil subjected to different managements and degrees of erosion. An undisturbed soil (UN), an old pasture soil (OP) and soils under continuous cultivation (NT) with four different depth of A horizon: 25 cm (NT 25), 23 cm (NT 23), 19 cm (NT 19) and 14 cm (NT 14) were tested. Substrate-induced respiration of most substrates diminished when cropping pressure increased (UN > OP > NT), and soil catabolic evenness, as a diversity index, decreased by increasing production pressure and soil erosion. The correlation found among most of the measured physical, chemical and biochemical soil properties with the catabolic evenness showed the potential of this measurement to provide an integrated view of soil functioning. The PLFA analysis showed that the composition of microbial community denoting a partial recovery after 10 yr under grazed grassland. The stress indicators showed that farming practices increased microbial stress with the highest values found in the most eroded soils Inst.de Suelos Fil: Romaniuk, Romina Ingrid. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina Fil: Costantini, Alejandro Oscar. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina. Universidad de Buenos Aires. Facultad de Agronomía, Cátedra de Edafología; Argentina Fil: Giuffré, Lidia. Universidad de Buenos Aires. Facultad de Agronomía, Cátedra de Edafología; Argentina Fil: Nannipieri, P. University of Firenze. Department of Soil Science and Plant Nutrition; Italia 2017-10-17T16:55:58Z 2017-10-17T16:55:58Z 2016-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion http://hdl.handle.net/20.500.12123/1503 http://onlinelibrary.wiley.com/doi/10.1111/sum.12293/abstract 0266-0032 (Print) 1475-2743 (Online) DOI: 10.1111/sum.12293 eng info:eu-repo/semantics/restrictedAccess application/pdf Soil use and management 32 (4) : 603–612. (December 2016) |
| spellingShingle | Suelo Fosfolípidos Acidos Grasos Catabolismo Soil Phospholipids Fatty Acids Catabolism Romaniuk, Romina Ingrid Costantini, Alejandro Oscar Nannipieri, P. Giuffré, Lidia Catabolic response and phospholipid fatty acid profiles as microbial tools to assess soil functioning |
| title | Catabolic response and phospholipid fatty acid profiles as microbial tools to assess soil functioning |
| title_full | Catabolic response and phospholipid fatty acid profiles as microbial tools to assess soil functioning |
| title_fullStr | Catabolic response and phospholipid fatty acid profiles as microbial tools to assess soil functioning |
| title_full_unstemmed | Catabolic response and phospholipid fatty acid profiles as microbial tools to assess soil functioning |
| title_short | Catabolic response and phospholipid fatty acid profiles as microbial tools to assess soil functioning |
| title_sort | catabolic response and phospholipid fatty acid profiles as microbial tools to assess soil functioning |
| topic | Suelo Fosfolípidos Acidos Grasos Catabolismo Soil Phospholipids Fatty Acids Catabolism |
| url | http://hdl.handle.net/20.500.12123/1503 http://onlinelibrary.wiley.com/doi/10.1111/sum.12293/abstract |
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