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. 2018 Aug 17;70(9):2419–2434. doi: 10.1093/jxb/ery308

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© The Author(s) 2018. Published by Oxford University Press on behalf of the Society for Experimental Biology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 7. — Ratio between optimal and control partitioning fractions (optimal p_X/control p_X) of the carboxylation pool (p_V, orange circles), the electron transport pool (p_J, red triangles), the light harvesting pool (p_C, green squares), and contributions of daily leaf carbon assimilation (DLA) to the daily canopy carbon assimilation (DCA) increase by optimal partitioning (grey bars, right y-axis) along the canopy depth [leaf area index (LAI) m² m⁻²] under 200% average daily photosynthetic photon integral during acclimation (aDPI₂₀₀) for plants grown under (A) high nitrogen and high light (HN+HL), (B) high nitrogen and low light (HN+LL), (C) low nitrogen and high light (LN+HL), (D) low nitrogen and low light (LN+LL) conditions. Photosynthetic nitrogen partitioning is close to optimum for HN+LL and LN+LL under aDPI₂₀₀, which corresponds to a DPI of 42.7 and 17.1 mol photons m⁻² d⁻¹ for HL and LL, respectively. See Table 4 for the increase in DCA by the optimal partitioning.