The grafted mangrove endophytic fungus Fusarium sp. #ZZF51 by phytic acid with polyphosphate groups (PA-ZZF51) was successfully synthesized by esterification reaction, and its uranium(VI) biosorption conditions, models, mechanism and regeneration property were also obtainted. The uranium(VI) removal from aqueous solution by PA-ZZF51 was optimized at pH (5.0), S/L ratio (0.2 g L−1), time (45 min), and the initial uranyl ions concentration (100 mg L−1) with 453.70 mg g−1 of biosorption capacity and 90.74% of removal percentage, respectively. K...