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. 2016 Oct 6;67(21):6061–6075. doi: 10.1093/jxb/erw366

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© The Author 2016. 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/3.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 4. — Arabidopsis thaliana om47 mutants display a stay-green phenotype during senescence that prolongs photoassimilation and starch accumulation. (A) The chlorophyll, Chl a, and Chl b concentrations and the Chl a/b ratio of the A. thaliana wild type (Col-0) and om47 mutants over 56 d under standard (16/8h photoperiod) growth conditions. The coloured bar represents the stage of senescence throughout the experiment (n=5; data are given as averages; error bars represent ±SE). *Significant differences (P≤0.05) compared with the wild type at each time point within treatments as determined by Student’s t-test. (B) Photosynthetic rate of A. thaliana wild type (Col-0) and om47 mutants over 56 d under standard (16/8h photoperiod) growth conditions. The coloured bar represents the stage of senescence throughout the experiment (n = 4; data are given as averages; error bars represent ±SE). *Significant differences (P≤0.05) compared with the wild type as determined by Student’s t-test. (C) Representative rosette and leaf images of A. thaliana wild type (Col-0) and om47 mutants over 56 d under standard (16/8h photoperiod) growth conditions. The bar indicates the scale. (D) Starch concentration and (E) iodine starch stains of the A. thaliana wild type (Columbia-0) and om47 mutants over 56 d under standard (16/8h photoperiod) growth conditions at the end of the light period (EOLP, ZT16). The coloured bar represents the stage of senescence throughout the experiment (n=5; data are given as averages; error bars represent ±SE). *Significant differences (P≤0.05) compared with the wild type as determined by Student’s t-test. The bar indicates scale.