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Title: Community proteogenomics reveals the systemic impact of phosphorus availability on microbial functions in tropical soil

Journal Article · · Nature Ecology and Evolution
 [1];  [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [5];  [5]; ORCiD logo [6]; ORCiD logo [2];  [1]; ORCiD logo [6]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Smithsonian Tropical Research Inst., Balboa, Ancon (Panama)
  3. Univ. of Tennessee, Knoxville, TN (United States)
  4. USDOE Joint Genome Institute (JGI), Walnut Creek, CA (United States)
  5. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  6. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)

Phosphorus is a scarce nutrient in many tropical ecosystems, yet how soil microbial communities cope with growth-limiting phosphorus deficiency at the gene and protein levels remains unknown. Here, we report a metagenomic and metaproteomic comparison of microbial communities in phosphorus-deficient and phosphorus-rich soils in a 17-year fertilization experiment in a tropical forest. The large-scale proteogenomics analyses provided extensive coverage of many microbial functions and taxa in the complex soil communities. A greater than fourfold increase in the gene abundance of 3-phytase was the strongest response of soil communities to phosphorus deficiency. Phytase catalyses the release of phosphate from phytate, the most recalcitrant phosphorus-containing compound in soil organic matter. Genes and proteins for the degradation of phosphorus-containing nucleic acids and phospholipids, as well as the decomposition of labile carbon and nitrogen, were also enhanced in the phosphorus-deficient soils. In contrast, microbial communities in the phosphorus-rich soils showed increased gene abundances for the degradation of recalcitrant aromatic compounds, transformation of nitrogenous compounds and assimilation of sulfur. Overall, these results demonstrate the adaptive allocation of genes and proteins in soil microbial communities in response to shifting nutrient constraints.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); USDOE Joint Genome Institute (JGI), Walnut Creek, CA (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); USDOE Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
AC05-00OR22725; AC02-05CH11231
OSTI ID:
1474724
Alternate ID(s):
OSTI ID: 1561882
Journal Information:
Nature Ecology and Evolution, Vol. 2, Issue 3; ISSN 2397-334X
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 95 works
Citation information provided by
Web of Science

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Cited By (8)

Characterization of Bacterial and Fungal Communities Reveals Novel Consortia in Tropical Oligotrophic Peatlands journal January 2020
Seasonal changes in soil respiration linked to soil moisture and phosphorus availability along a tropical rainfall gradient journal September 2019
Soil metaproteomics as a tool for monitoring functional microbial communities: promises and challenges journal December 2019
Online supercritical fluid extraction mass spectrometry (SFE-LC-FTMS) for sensitive characterization of soil organic matter journal January 2019
Potentialities and soil impact analysis of rock phosphorus fertilization of perennial and annual legume crops journal August 2019
Phylogenetic conservation of soil bacterial responses to simulated global changes journal March 2020
Contrasting patterns of plant and microbial diversity during long-term ecosystem development journal January 2019
Genome-Resolved Proteomic Stable Isotope Probing of Soil Microbial Communities Using 13CO2 and 13C-Methanol journal December 2019

Figures / Tables (6)