The Offshore Environmental Safety Laboratory of the School of Marine Science and Technology Has Made Significant Progress in the Field of Environmental Science and Engineering

　　Recently, Professor Zhiguang Niu's research team from the Nearshore Environmental Safety Laboratory at our institute published groundbreaking research findings in the top journal Journal of Hazardous Materials (IF=12.2) in the field of environmental science and engineering. The team has, for the first time, revealed the hidden Hormesis effect of perfluorooctane sulfonate (PFOS) and its salts at environmental concentrations on marine microalgae, which not only fills the gap in the research of Hormesis mechanisms but also provides a new perspective and profound insight for scientific exploration in this field.

　　Highlights:

　　Low concentrations of PFOS stimulated the growth of marine diatoms in the first 16 days;

　　From day 8 to day 16, marine diatoms exhibited a J-shaped hormesis effect;

　　From day 18 onwards, the "low-stimulating" effect became latent, i.e., disappeared at the community level but remained at the cellular and molecular levels;

　　Low concentrations of PFOS accelerated the cell apoptosis process, and lower concentrations of pollutants could induce cell necrosis;

　　Active energy metabolism was used more for combating or counteracting the environmental stress caused by PFOS, rather than for growth and division.