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Bioresources and Bioprocessing
Fig. 2 | Bioresources and Bioprocessing

Fig. 2

From: Astaxanthin accumulation difference between non-motile cells and akinetes of Haematococcus pluvialis was affected by pyruvate metabolism

Fig. 2

Induction effect and images of H. pluvialis using different cell type as seeds. A Induction effect of H. pluvialis using different cell type as seeds. a Astaxanthin content during induction process; b astaxanthin concentration during induction process, c dry weight during induction process. Hollow circle represents green non-motile cells as seeds, and solid square represents brown akinetes as seeds; b, c represent SEM and TEM images of control group (B, 1235 route) and treatment group (C, 1246 route), respectively. Sample 1, Sample 2 and Sample 3 were the heterotrophic cells at 100 h, 250 h, and 550 h, respectively; Sample 4 was Sample 2 cells induction for 0.5 day; Sample 5 was Sample 3 cells induction for 6 days; Sample 6 was the Sample 2 cells induction for 6 days. SEM: scanning electron microscope (scale bar = 10 μm); TEM: transmission electron microscope (scale bar = 5 μm). Data are shown as mean ± SD, and number of replications is two (n = 2)

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