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. 2021 Oct 20;188(3):1450–1468. doi: 10.1093/plphys/kiab488

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© The Author(s) 2021. Published by Oxford University Press on behalf of American Society of Plant Biologists.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Experimental testing of predictions of a mathematical model of metabolism in tomato tVI-GTs. A, Overview of workflow for generating the Solyc_tVI-GT_2021 model. B, Quantitative fatty acid analysis of isolated tVI-GTs from the af mutant (gray bars) and CHI9 isogenic control (open bars) to test the Solyc_tVI-GT_2021 prediction that flux through fatty acid biosynthesis is higher in the af mutant compared to CHI9. Asterisks denote P < 0.01 in comparisons between af and CHI9 (n = 5–6). C, Comparison of the amount of naringenin chalcone in tVI-GTs of the indicated genotypes (n = 8–15 collections of hand-picked trichomes per genotype) to test the Solyc_tVI-GT_2021 prediction that only the flavonoid pathway reactions upstream of CHI1, but not those downstream, carry significant flux in the af mutant. Bars represent mean ± standard error. Statistical difference across genotypes, based on Tukey’s multiple comparison test (P < 0.05), is indicated by lowercase letters.