DYNOMIWAS

DYNAMICS OF THE ORGANIC MATTER AND THE MICROBIAL COMMUNITY RELATED TO ITS CYCLING IN ARID AREAS. INVOLVEMENT OF AMENDMENTS BASED ON ORGANIC WASTES

Coordinatore	AGENCIA ESTATAL CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS    more  Organization address address: CALLE SERRANO 117 city: MADRID postcode: 28006 contact info Titolo: Mr. Nome: Eusebio Cognome: Jimenez Arroyo Email: send email Telefono: +34 915668852 Fax: +34 915668913
Nazionalità Coordinatore	Spain [ES]
Totale costo	45˙000 €
EC contributo	45˙000 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-2010-RG
Funding Scheme	MC-ERG
Anno di inizio	2010
Periodo (anno-mese-giorno)	2010-09-01   -   2013-08-31

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	AGENCIA ESTATAL CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS  Organization address address: CALLE SERRANO 117 city: MADRID postcode: 28006 contact info Titolo: Mr. Nome: Eusebio Cognome: Jimenez Arroyo Email: send email Telefono: +34 915668852 Fax: +34 915668913	ES (MADRID)	coordinator	45˙000.00

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 Obiettivo del progetto (Objective)

'Microorganisms are responsible for organic carbon mineralization and sequestration in soil, and these processes play a key role in ecosystem sustainability. However, despite the fact that several studies have shown how organic amendments can be used to recover desertified soils, the information regarding the microbial key players and carbon sequestration processes is limited for these areas. The general objective of this proposal is to study the dynamics of organic matter and the function of the microbial community associated with its turnover in desert areas. This proposal includes interdisciplinary aspects that will enrich the knowledge of the fellow and host institution with novel results. We will combine cut-off technologies based on chemical (C analysis), microbiological (microbial activity and biomass), biochemical (enzyme activity and catabolic potential), proteomic (native and non-native based proteomics from organic wastes and soils) and molecular methods (clone libraries, DGGE) to open the “black box” of the soil microbial community related to C transformation in arid and semiarid soils. Several activities are organized: i) Selection of soils with different levels of degradation, ii) evaluation of the addition of new organic materials (sludges, composts, charcoals) in soil microbiological quality; ii) identification of the main physical and chemical carbon sinks; iv) changes in the microbial community structure of soil organic amendment; v) transformations of organic molecules by the microbial community (mineralization of isotopic compounds); and vi) identification of enzymatic processes related to generation of stable organic matter. The experience of the candidate and the host institution (CEBAS-CSIC) is sufficient for the development of these activities.'

Introduzione (Teaser)

Microbes and organic matter in arid soil

Descrizione progetto (Article)

It is well known that organic soil amendments can be used to restore desertified or arid soils. However, little is known about how this process occurs, or which microorganisms play a role.

As part of the EU-funded DYNOMIWAS project, researchers studied the dynamics of organic carbon and how it is metabolised by the microorganisms in arid soils.

They treated soils with different organic amendments such as solid or liquid human municipal waste, and evaluated the effects on soils and microorganisms. They found increased carbon content, increased activity of hydrolytic and dehydrogenase enzymes, and changes to the function but not the diversity of microbial communities.

DYNOMIWAS also investigated how carbon was sequestered into soil under the same conditions by using glucose or cellulose labelled with C13 (a radioactive isotope). Different microorganisms were responsible for metabolising glucose compared to cellulose, but in both cases only a small fraction of the community used the carbon.

Overall, DYNOMIWAS contributed to our understanding of how microorganisms interact with organic matter in arid soils. This may prove important for the restoration of desertified or over-farmed ecosystems.