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The biokinetic spectrum for temperature

Citation

Corkrey, R and McMeekin, TA and Bowman, JP and Ratkowsky, DA and Olley, J and Ross, T, The biokinetic spectrum for temperature, PLoS One, 11, (4) Article e0153343. ISSN 1932-6203 (2016) [Refereed Article]


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Copyright Statement

Copyright: 2016 Corkrey et al. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) http://creativecommons.org/licenses/by/4.0/

DOI: doi:10.1371/journal.pone.0153343

Abstract

We identify and describe the distribution of temperature-dependent specific growth rates for life on Earth, which we term the biokinetic spectrum for temperature. The spectrum has the potential to provide for more robust modeling in thermal ecology since any conclusions derived from it will be based on observed data rather than using theoretical assumptions. It may also provide constraints for systems biology model predictions and provide insights in physiology. The spectrum has a Δ-shape with a sharp peak at around 42C. At higher temperatures up to 60C there was a gap of attenuated growth rates. We found another peak at 67C and a steady decline in maximum rates thereafter. By using Bayesian quantile regression to summarise and explore the data we were able to conclude that the gap represented an actual biological transition between mesophiles and thermophiles that we term the Mesophile-Thermophile Gap (MTG). We have not identified any organism that grows above the maximum rate of the spectrum. We used a thermodynamic model to recover the Δ-shape, suggesting that the growth rate limits arise from a trade-off between activity and stability of proteins. The spectrum provides underpinning principles that will find utility in models concerned with the thermal responses of biological processes.

Item Details

Item Type:Refereed Article
Keywords:temperature dependent growth rate, bayesian, quantile regression
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Ecological Physiology
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Biological Sciences
Author:Corkrey, R (Dr Ross Corkrey)
Author:McMeekin, TA (Professor Thomas McMeekin)
Author:Bowman, JP (Associate Professor John Bowman)
Author:Ratkowsky, DA (Dr David Ratkowsky)
Author:Olley, J (Professor June Olley)
Author:Ross, T (Associate Professor Tom Ross)
ID Code:108408
Year Published:2016
Web of Science® Times Cited:7
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2016-04-19
Last Modified:2017-11-06
Downloads:63 View Download Statistics

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