Fig. 5: Schematic of action mode of the SPX-PHR-PSI regulatory cascade under P+ and P− conditions. | Communications Biology

Fig. 5: Schematic of action mode of the SPX-PHR-PSI regulatory cascade under P+ and P− conditions.

From: SPX-related genes regulate phosphorus homeostasis in the marine phytoplankton, Phaeodactylum tricornutum

Fig. 5

The P+ condition is shown on the left, in which regulation functions in the SPX mutant is shown in the inset, whereas the P− condition on the right. Positive and negative regulations are indicated by arrows and flat-ended lines, respectively. The vertical red arrow indicates upregulation. Crosses depict blockage of the pathway.

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