Fig. 4

Proteomic analysis of Nitzschia palea. A–D Diagrams showing for each quantified protein the change in abundance between treatment (saline-alkali) and the control (CK). Most proteins (grey points) did not change in abundance between the two culture conditions. Significantly regulated proteins are depicted as red/blue points, and red/blue points indicate significantly increased/decreased proteins; E Venn diagram with the number of proteins identified in Nitzschia palea for the group of untreated CK, 30 mM, 60 mM, 90 mM