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Data for: Latent functional diversity may accelerate microbial community responses to temperature fluctuations

Citation

Smith, Thomas et al. (2022), Data for: Latent functional diversity may accelerate microbial community responses to temperature fluctuations, Dryad, Dataset, https://doi.org/10.5061/dryad.f1vhhmh0g

Abstract

How complex microbial communities respond to climatic fluctuations remains an open question. Due to their relatively short generation times and high functional diversity, microbial populations harbor great potential to respond as a community through a combination of strain-level phenotypic plasticity, adaptation, and species sorting. However, the relative importance of these mechanisms remains unclear. We conducted a laboratory experiment to investigate the degree to which bacterial communities can respond to changes in environmental temperature through a combination of phenotypic plasticity and species sorting alone. We grew replicate soil communities from a single location at six temperatures between 4°C and 50°C. We found that phylogenetically- and functionally-distinct communities emerge at each of these temperatures, with K-strategist taxa favoured under cooler conditions, and r-strategist taxa under warmer conditions. We show that this dynamic emergence of distinct communities across a wide range of temperatures (in essence, community-level adaptation), is driven by the resuscitation of latent functional diversity: the parent community harbors multiple strains pre-adapted to different temperatures that are able to "switch on" at their preferred temperature without immigration or adaptation. Our findings suggest that microbial community function in nature is likely to respond rapidly to climatic temperature fluctuations through shifts in species composition by resuscitation of latent functional diversity.

Methods

Bacterial isolates were collected from a species sorting experiment. Isolates were grown at different temperatures, their growth, respiration and ATP content measured in order to produce thermal performance curves for these traits. Please see the accompanying published article: Smith, T.P., Mobrikotb, S., Ransome, E., Kontopoulos, D-G., Pawar, S., Bell, T. 2022. Latent functional diversity may accelerate microbial community responses to temperature fluctuations. eLife. Accepted.

Usage Notes

Data files provided in csv format. Please see the README document for full details of files and contents (README.md).

Funding

Biotechnology and Biological Sciences Research Council, Award: BB/J014575/1

Natural Environment Research Council, Award: NE/M020843/1

Natural Environment Research Council, Award: NE/S000348/1