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. 2018 Feb 22;255(4):1239–1252. doi: 10.1007/s00709-018-1225-1

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© The Author(s) 2018

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

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Fig. 2 — Deepoxidation state—ratio of xanthophyll-cycle pigments antheraxanthin, zeaxanthin, and violaxanthin of Zygnema sp. C and Zygnema sp. S, (A) pre-akinetes, and (V) vegetative cells either exposed to control condition (0) or PAR+UV-A (PA) or PAR+UV-A+UV-B (PAB). Statistical differences among individual UV treatments (one-way ANOVA, Tukey’s test) are marked with lower-case letters (Zygnema sp. C, pre-akinetes), lower-case letters in italics (Zygnema sp. C, vegetative cells), upper-case letters (Zygnema sp. S, pre-akinetes), or upper-case letters in italics (Zygnema sp. S, vegetative cells)