Fig. 4: Growth curves of Synechococcus sp. PCC7002 at different levels of added P-bearing kaolinite.
From: The kaolinite shuttle links the Great Oxidation and Lomagundi events
The original culture was divided into three 150 mL sub-cultures after day 6. Black squares and straight line represent the control culture incubated in modified A + growth media with only 5 µM potassium phosphate. The green circles and dashed line show the growth of a culture with addition of 150 mg of P-bearing kaolinite after day 6. The blue triangles and dotted line represent the culture in which 300 mg of P-bearing kaolinite was added after day 6. Error bars represent the ±0.5 standard deviation of replicates.
