Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.provenance | CONICET | - |
| dc.creator | Huygens, D. | - |
| dc.creator | Diaz, Sandra Myrna | - |
| dc.creator | Urcelay, Roberto Carlos | - |
| dc.creator | Boeckx, P. | - |
| dc.date | 2017-06-30T16:06:30Z | - |
| dc.date | 2017-06-30T16:06:30Z | - |
| dc.date | 2016-10 | - |
| dc.date | 2017-06-29T13:55:18Z | - |
| dc.date.accessioned | 2019-04-29T15:39:34Z | - |
| dc.date.available | 2019-04-29T15:39:34Z | - |
| dc.date.issued | 2016-10 | - |
| dc.identifier | Huygens, D.; Diaz, Sandra Myrna; Urcelay, Roberto Carlos; Boeckx, P.; Microbial recycling of dissolved organic matter confines plant nitrogen uptake to inorganic forms in a semi-arid ecosystem; Elsevier; Soil Biology And Biochemistry; 101; 10-2016; 142-151 | - |
| dc.identifier | 0038-0717 | - |
| dc.identifier | http://hdl.handle.net/11336/19267 | - |
| dc.identifier | 1879-3428 | - |
| dc.identifier | CONICET Digital | - |
| dc.identifier | CONICET | - |
| dc.identifier.uri | http://rodna.bn.gov.ar:8080/jspui/handle/bnmm/298781 | - |
| dc.description | Plant uptake of dissolved organic nitrogen (DON) has been proposed to explain inconsistency in the ecosystem N balance of semi-arid systems. Nevertheless, direct evidence for an ecologically important role of DON in plant nutrition in these systems remains elusive under field conditions. Here, natural abundance 15N signatures of NO3−, NH4+, DON and whole plants from a semi-arid model forest were analyzed to provide robust estimates of plant N source partitioning and relative N cycling rates under in-situ conditions. Concurrently, architectural and symbiotic root traits were determined to assess their relationship to plant N acquisition strategies. Bayesian isotope mixing models indicated an insignificant contribution of DON to ecosystem plant N nutrition. Nitrate was the dominant plant N source in this ecosystem, while the contribution of NH4+ to plant nutrition varied between herbaceous (26%) and woody plants (8%). The low C:N ratio of the dissolved organic matter pool - ranging from 12.7 to 4.9 within the soil profile ? indicated microbial C-limitation in this ecosystem. Dissolved organic N was significantly enriched in 15N relative to NH4+ and NO3−, corroborating the importance of dissolved organic matter recycling as a cost-effective pathway that simultaneously supplies C and nutrients for microbial metabolism. Plants exclusively depend on inorganic N forms made available through microbial N mineralization and free-living atmospheric N2 fixation, followed by autotrophic nitrification. | - |
| dc.description | Fil: Huygens, D.. Ghent University. Isotope Bioscience Laboratory; Países Bajos | - |
| dc.description | Fil: Diaz, Sandra Myrna. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina | - |
| dc.description | Fil: Urcelay, Roberto Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina | - |
| dc.description | Fil: Boeckx, P.. Ghent University. Isotope Bioscience Laboratory; Países Bajos | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | Elsevier | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0038071716301481 | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.soilbio.2016.07.006 | - |
| dc.rights | info:eu-repo/semantics/restrictedAccess | - |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | - |
| dc.source | reponame:CONICET Digital (CONICET) | - |
| dc.source | instname:Consejo Nacional de Investigaciones Científicas y Técnicas | - |
| dc.source | instacron:CONICET | - |
| dc.source.uri | http://hdl.handle.net/11336/19267 | - |
| dc.subject | BIOLOGICAL NITROGEN FIXATION | - |
| dc.subject | PLANT MICROBIAL COMPETITION | - |
| dc.subject | CHACO | - |
| dc.subject | DISSOLVED ORGANIC NITROGEN | - |
| dc.subject | Ecología | - |
| dc.subject | Ciencias Biológicas | - |
| dc.subject | CIENCIAS NATURALES Y EXACTAS | - |
| dc.title | Microbial recycling of dissolved organic matter confines plant nitrogen uptake to inorganic forms in a semi-arid ecosystem | - |
| dc.type | info:eu-repo/semantics/article | - |
| dc.type | info:eu-repo/semantics/publishedVersion | - |
| dc.type | info:ar-repo/semantics/articulo | - |
| Aparece en las colecciones: | CONICET | |
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