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| Página principal > Artículos > Artículos publicados > The Application of ecological stoichiometry to plant-microbial-soil organic matter transformations |
(Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) (Universität Wien. Institut für Mikrobiologie und Ecosystem Wissenschaft) (Centre de Recerca Ecològica i d'Aplicacions Forestals)| Título variante: | The Application of ecological stoichiometry to microbial decomposition : from plants to microbial communities |
| Fecha: | 2015 |
| Resumen: | Elemental stoichiometry constitutes an inherent link between biogeochemistry and the structure and processes within food webs, and thus is at the core of ecosystem functioning. Stoichiometry allows for spanning different levels of biological organization, from cellular metabolism to ecosystem structure and nutrient cycling, and is therefore particularly useful for establishing links between different ecosystem compartments. We review elemental carbon : nitrogen : phosphorus (C:N:P) ratios in terrestrial ecosystems (from vegetation, leaf litter, woody debris, and dead roots, to soil microbes and organic matter). While the stoichiometry of the plant, litter, and soil compartments of ecosystems is well understood, heterotrophic microbial communities, which dominate the soil food web and drive nutrient cycling, have received increasing interest in recent years. This review highlights the effects of resource stoichiometry on soil microorganisms and decomposition, specifically on the structure and function of heterotrophic microbial communities and suggests several general patterns. First, latitudinal gradients of soil and litter stoichiometry are reflected in microbial community structure and function. Second, resource stoichiometry may cause changes in microbial interactions and community dynamics that lead to feedbacks in nutrient availability. Third, global change alters the C:N, C:P, and N:P ratios of primary producers, with repercussions for microbial decomposer communities and critical ecosystem services such as soil fertility. We argue that ecological stoichiometry provides a framework to analyze and predict such global change effects at various scales. |
| Ayudas: | Ministerio de Economía y Competitividad CGL2013-48074-P Ministerio de Ciencia e Innovación CSD 2008-00040 Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-274 |
| Nota: | L'apèndix està disponible en línia a http://dx.doi.org/10.1890/14-0777.1.sm |
| Nota: | El títol del post-print és The Application of ecological stoichiometry to microbial decomposition: from plants to microbial communities |
| Nota: | Aquest treball també ha rebuts els ajuts següents: MICDIF integrated project (linking microbial diversity and function across scales and ecosystems), funded by the Austrian Science Fund FWF (S 10006-B01, S 10006-B06, S 10006- B07) |
| Derechos: | Tots els drets reservats.  |
| Lengua: | Anglès |
| Documento: | Article ; recerca ; Versió publicada |
| Materia: | Carbon use efficiency ; Growth rate hypothesis ; Homeostasis ; Litter decomposition ; Nitrogen turnover ; Nutrient recycling ; Phosphorus deficiency ; Soil enzymes ; Soil microbiology ; Substrate age hypothesis |
| Publicado en: | Ecological monographs, Vol. 85, issue 2 (May 2015) , p. 133-155, ISSN 1557-7015 |
23 p, 8.0 MB |
85 p, 6.1 MB |
