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. 2010 Sep 27;62(2):509–519. doi: 10.1093/jxb/erq284

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© 2010 The Author(s).

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.5), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

This paper is available online free of all access charges (see http://jxb.oxfordjournals.org/open_access.html for further details)

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Fig. 2. — Examples of fast Chl a fluorescence induction measurements of dark-adapted cell suspensions of T. pseudonana exposed to different experimental conditions: (A) dark-aerobic incubation; (B) after 60 min of dark-anaerobic incubation; (C, D) 60 min of anaerobic incubation followed by a 30 min period of reoxygenation or illumination with FR light (720 nm), respectively. The dashed line indicates the J-level. V_J is the relative variable fluorescence at the J-step at 2 ms calculated as: V_J=(F_2ms–F_m)/(F_m–F_o).