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. 2021 Dec 17;16(5):1306–1317. doi: 10.1038/s41396-021-01172-w

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 4 — a Comparison of diel patterns for diatom endometabolite concentration (green symbols) and bacterial transcript inventory for a representative gene encoding uptake or catabolism of the same compound (blue symbols); additional relevant genes are shown in Fig. S6 (mean + standard deviation, n = 3 except for the first night where n = 2). b The base model was optimized with or without optional functions. Each point represents a parameter combination (out of 806,400 tested) for which the model output is significantly correlated with both metabolite and transcript experimental data, and points are colored according to the Pearson’s r values for correlations between experimental data and model simulations, averaged for transcript and metabolite datasets. c The best fit model based on average adjusted r, with individual r values given above the plots for metabolite (green font) and transcript (blue font) inventories. Functions added to the base model to achieve the best fit include two physiological balance mechanisms indicated as +o (irradiance-fixation oscillation) and +h (cellular homeostasis), and a bacterial recognition response indicated as +b. *p < 0.05; **p < 0.01; ***p < 0.001. d Simulation model structure.