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. 2020 Feb 26;11:103. doi: 10.3389/fpls.2020.00103

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Copyright © 2020 Podgórska, Mazur, Ostaszewska-Bugajska, Kryzheuskaya, Dziewit, Borysiuk, Wdowiak, Burian, Rasmusson and Szal

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Foliar pigment levels in A. thaliana nourished with 5 mM ${NH}_{4}^{+}$ or 5 mM ${NO}_{3}^{-}$ (control) as the only source of nitrogen. (A) Levels of chlorophyll (chl) a and chl b. (B) Content of xanthophyll cycle pigments. (C) De-epoxidation state (DEPS) of xanthophylls. (D) Content of lutein. Bars with different letters indicate significant difference (p ≤ 0.05).