Nicosulfuron Degradation by an Ascomycete Fungus Isolated From Submerged <i>Alnus</i> Leaf Litter.

ABSTRACT: Nicosulfuron is a selective herbicide belonging to the sulfonylurea family, commonly applied on maize crops. Its worldwide use results in widespread presence as a contaminant in surface streams and ground-waters. In this study, we isolated, for the first time, the Plectosphaerella cucumerina AR1 nicosulfuron-degrading fungal strain, a new record from Alnus leaf litter submerged in freshwater. The degradation of nicosulfuron by P. cucumerina AR1 was achieved by a co-metabolism process and followed a first-order model dissipation. Biodegradation kinetics analysis indicated that, in planktonic lifestyle, nicosulfuron degradation by this strain was glucose concentration dependent, with a maximum specific degradation rate of 1 g/L in glucose. When grown on natural substrata

SUBMITTER: Carles L 

PROVIDER: S-EPMC6305708 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature