An active soil microbial community in three Mediterranean-climate grassland soils sampled across a rainfall gradient and assayed with genome-resolved quantitative stable isotope probing (qSIP) following an H2-18O labeling experiment to identify actively growing organisms and link growth and motility traits to historical precipitation. qSIP-informed genome-resolved metagenomics resolves the active subset of community members, with higher year-round precipitation correlating with higher activity and growth rates of flagellar motile microorganisms.
Taxonomy
| Taxon | Ontology ID | Functional Roles | Abundance |
|---|---|---|---|
| actively growing soil bacteria | NCBITaxon:2 |
PRIMARY_DEGRADER
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N/A |
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| flagellar motile soil microorganisms | NCBITaxon:2 |
PRIMARY_DEGRADER
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N/A |
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Ecological Interactions
Taxon
Cross-feeding
Mutualism
Syntrophy
Competition
Commensalism
Niche partitioning
Colonization facilitation
Strain competition
Predation
Rainfall-Driven Selection for Motility
NICHE_PARTITIONINGEvidence
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PMID:36300946 - SUPPORT (IN_VIVO)"historic precipitation levels are an important factor controlling trait selection"
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PMID:36300946 - SUPPORT (IN_VIVO)"higher activity and growth rates of flagellar motile microorganisms"
External Resources
| Name | Repository | Resource ID |
|---|---|---|
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Primary publication for the Mediterranean grassland qSIP community
PubMed record for the Greenlon et al. 2022 mSystems paper. |
OTHER | PMID:36300946 |
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DOI landing page
DOI link to the mSystems paper. |
OTHER | doi:10.1128/msystems.00417-22 |
Environmental Factors
| Factor | Value | Unit |
|---|---|---|
| Rainfall gradient across grassland sites | three grassland soils along a precipitation gradient | N/A |
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| H2-18O qSIP labeling | H218O labeling experiment | N/A |
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