| Protozoan Pulses Unveil Their Pivotal Position Within the Soil Food Web. | |
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MedLine Citation:
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PMID: 21990016 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Protozoa are one of the most abundant groups of bacterivores within the soil and are responsible for mineralisation of bacterial biomass, having a large impact on C and N cycling. Little is known of their contribution to soil nutrient transfers or the identity of their consumers. Here, for the first time indigenous flagellates and ciliates, enriched to 83 atom% for (13)C and 10 atom% for (15)N, were introduced to soil cores from two different land managements, grassland and woodland with the same soil type, to trace the flow of protozoan C and N through the soil food web. Nematodes, Collembola, earthworms and insect larvae obtained the greatest amounts of C and N of protozoan origin, either through direct consumption or uptake of biomass post-cell death. Our results show that changes in management, affect the functioning of the soil food web and the utilisation of protozoa as a food source. |
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Authors:
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Felicity V Crotty; Sina M Adl; Rod P Blackshaw; Philip J Murray |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-10-12 |
Journal Detail:
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Title: Microbial ecology Volume: - ISSN: 1432-184X ISO Abbreviation: - Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-10-12 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7500663 Medline TA: Microb Ecol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Sustainable Soil and Grassland Systems, Rothamsted Research, North Wyke, Okehampton, Devon, EX20 2SB, UK, felicity.crotty@rothamsted.ac.uk. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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