Chlorinated polyfluoroalkyl ether sulfonate (F-53B) and perfluorooctanesulfonate (PFOS) are used and emitted as fog inhibitors in the chromium plating industry, and they are widely detected worldwide. To study the effects of F-53B and PFOS on the rhizosphere defense system, they were added at two levels (0.1 and 50 mg L⁻¹) to the soil where different plants (Lythrum salicaria and Phragmites communis) were grown. In bulk soils, high concentrations of F-53B/PFOS resulted in significant increases in soil pH, NH₄⁺-N, and NO₃^--N (the effect of PFOS on NO₃^--N was not significant). Moreover, the extent of the effects of PFOS and F-53B on the physicochemical properties of bulk soils were different (e.g., PFOS caused an increase of NH₄⁺-N by 8.94%−45.97% compared to 1.63%−25.20% for F-53B). Root exudates and PFASs together influenced the physicochemical properties of rhizosphere soils (e.g., TOC increased significantly in contaminated rhizosphere soils but did not change in non-bulk soils). Under the influence of F-53B/PFOS, the root exudates regulated by plants were changed and weakened the effect of F-53B/PFOS on microbial community of rhizosphere soil. The rhizosphere defense systems of different plants have both similarities and differences in response to different substances and concentrations.

氯化多氟烷基醚磺酸盐 (F-53B) 和全氟辛烷磺酸盐 (PFOS) 在镀铬行业中用作雾抑制剂并排放，它们在世界范围内被广泛检测到。为了研究 F-53B 和 PFOS 对根际防御系统的影响，将它们以两种水平（0.1 和 50 mg L ^-1）添加到生长不同植物（千金子和芦苇）的土壤中。在大块土壤中，高浓度的 F-53B/PFOS 导致土壤 pH 值、NH ₄ ⁺ -N 和 NO ₃ ^- -N 显着增加（PFOS 对 NO ₃ ^--N 并不重要）。此外，PFOS 和 F-53B 对大块土壤理化性质的影响程度不同（例如，PFOS 导致 NH ₄ ⁺ -N 增加 8.94%−45.97%，而 F 为 1.63%−25.20% -53B)。根系分泌物和 PFAS 共同影响根际土壤的理化特性（例如，受污染的根际土壤中 TOC 显着增加，但在非大块土壤中没有变化）。在F-53B/PFOS的作用下，植物调节的根系分泌物发生变化，削弱了F-53B/PFOS对根际土壤微生物群落的影响。不同植物的根际防御系统对不同物质和浓度的反应既有相同点也有不同点。