The Diquat degrading yeast strain Meyerozyma guilliermondii Wyslmt

Diquat is used in agricultural contexts to control the growth of broadleaf and grassy weeds in both terrestrial and aquatic areas. Diquat can be readily absorbed by the soil and can remain therein for extended periods of time, altering the soil environment. In this study, the Meyerozyma guilliermondii Wyslmt yeast strain, which is capable of degrading Diquat, was isolated from soil exposed to long-term Diquat treatment. Diquat (100 mg/L) exhibited 42.51% removal by this strain after a 7-day incubation.