Document Detail


Protozoan Pulses Unveil Their Pivotal Position Within the Soil Food Web.
MedLine Citation:
PMID:  21990016     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
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.
Authors:
Felicity V Crotty; Sina M Adl; Rod P Blackshaw; Philip J Murray
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-10-12
Journal Detail:
Title:  Microbial ecology     Volume:  -     ISSN:  1432-184X     ISO Abbreviation:  -     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7500663     Medline TA:  Microb Ecol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Sustainable Soil and Grassland Systems, Rothamsted Research, North Wyke, Okehampton, Devon, EX20 2SB, UK, felicity.crotty@rothamsted.ac.uk.
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