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. 2016 Feb 8;6:21155. doi: 10.1038/srep21155

Figure 2. Correlation between phototaxis and photosynthetic efficiency in diverse strains.

Figure 2

(a) Scatter plot showing the correlation between skewness of arrival time distribution and inverse average arrival time of 100 strains, including the wild-type strain (CC-125) and 99 randomly selected insertional mutants with wide range of PSII operating efficiency (Y(II)) (R2 = 0.84). (b) Scatter plot showing the correlation between Y(II) and inverse average arrival time of the 100 strains (R2 = 0.69). (c) Scatter plot showing correlation between Y(II) and skewness of arrival time distribution of the 100 strains (R2 = 0.72). Cells were grown photomixotrophically under continuous low light condition (50 μmol photons m-2 s-1). Phototactic response was measured on 6,600 cells per analysis. The yellow diamond: the wild type (ac). Data are the mean of three biological replicates.