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Soil microbial communities with greater investment in resource acquisition have lower growth yield

Malik, Ashish A.; Puissant, Jeremy; Goodall, Tim; Allison, Steven D.; Griffiths, Robert I.. 2019 Soil microbial communities with greater investment in resource acquisition have lower growth yield. Soil Biology and Biochemistry, 132. 36-39. https://doi.org/10.1016/j.soilbio.2019.01.025

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Abstract/Summary

Resource acquisition and growth yield are fundamental microbial traits that affect biogeochemical processes and have consequences for ecosystem functioning. However, there is a lack of empirical observations linking these traits. Using a landscape-scale survey of temperate near-neutral pH soils, we show tradeoffs in key community-level parameters linked to these traits. Increased investment into extracellular enzymes estimated using specific potential enzyme activity was associated with reduced growth yield obtained using carbon use efficiency measures from stable isotope tracing. Reduction in growth yield was linked more to carbon than nitrogen acquisition highlighting smaller stoichiometric than energetic constraints on community metabolism in examined soils.

Item Type: Publication - Article
Digital Object Identifier (DOI): https://doi.org/10.1016/j.soilbio.2019.01.025
UKCEH and CEH Sections/Science Areas: Soils and Land Use (Science Area 2017-)
Unaffiliated
ISSN: 0038-0717
Additional Keywords: carbon, microbial communities, enzymes, carbon use efficiency, nitrogen, traits
NORA Subject Terms: Ecology and Environment
Agriculture and Soil Science
Date made live: 29 Mar 2019 11:19 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/522726

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