Soil restoration with organic amendments: linking cellular functionality and ecosystem processes

Open access
Author
Bastida, Felipe
Selevsek, Nathalie
Torres, Irene F.
Hernández, Teresa
García, Carmen
Date
2015-10-27Type
- Journal Article
Abstract
A hot topic in recent decades, the application of organic amendments to arid-degraded soils has been shown to benefit microbially-mediated processes. However, despite the importance of soils for global sustainability, a gap has not been addressed yet in soil science: is there any connection between ecosystem-community processes, cellular functionality, and microbial lifestyles (i.e. oligotrophy-copiotrophy) in restored soils? Together with classical ecosystem indicators (fatty-acids, extracellular-enzyme activities, basal respiration), state-of-the-art metaproteomics was applied to fill this gap in a model-restoration experiment initiated 10-years ago by the addition of sewage-sludge and compost. Organic amendment strongly impacted ecosystem processes. Furthermore, the type of material used induced differences in the cellular functionalities through variations in the percentages of proteins involved in translation, transcription, energy production and C-fixation. We conclude that the long-term impact of organic restoration goes beyond ecosystem processes and affects cellular functionalities and phyla-lifestyles coupled with differences in microbial-community structures Show more
Permanent link
https://doi.org/10.3929/ethz-b-000106231Publication status
publishedJournal / series
Scientific ReportsVolume
Pages / Article No.
Publisher
Nature Publishing GroupSubject
Soil microbiology; Environmental sciencesOrganisational unit
02207 - Functional Genomics Center Zürich / Functional Genomics Center Zürich
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