Evaluating the stoichiometric trait distributions of cultured bacterial populations and uncultured microbial communities

Summary We measured the stoichiometric trait distribution of cultured freshwater bacterial populations under different resource conditions and compared them to natural microbial communities sampled from three lakes. Trait distributions showed population differences among growth phases and community...

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Bibliographic Details
Published in:Environmental microbiology 2019-10, Vol.21 (10), p.3613-3626
Main Authors: Manzella, Michael, Geiss, Roy, Hall, Ed K.
Format: Article
Language:English
Subjects:
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Bacteria - isolation & purification
Bacteria - metabolism
Biomass
Communities
Distribution
Freshwater
Genotypes
Growth
Inland water environment
Lakes
Lakes - microbiology
Microbial activity
Microbiology
Microbiomes
Microbiota
Microorganisms
Phosphorus - metabolism
Populations
Ratios
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Summary:Summary We measured the stoichiometric trait distribution of cultured freshwater bacterial populations under different resource conditions and compared them to natural microbial communities sampled from three lakes. Trait distributions showed population differences among growth phases and community differences among lakes that would have been masked by only reporting the mean biomass value. The stoichiometric trait distribution of the environmental isolates changed with P availability, growth phase and genotype, with P availability having the strongest effect. The distribution of biomass ratios within each isolate growth experiment were the most constrained during the stages of rapid growth and commonly had unimodal distributions. In contrast to the population distributions, the distribution of N:P and C:P for a similar number of cells from each of the lake communities had narrower stoichiometric distributions and more commonly exhibited multiple modes. © 2019 Society for Applied Microbiology and John Wiley & Sons Ltd
ISSN:1462-2912
1462-2920
DOI:10.1111/1462-2920.14684