“…Pyrrolnitrin is a metabolite with marked antifungal activity, originally isolated from Pseudomonas fluorescens Pf-5 (Lee et al, 2005). It is mainly produced by the secondary metabolism of many Pseudomonas, although its presence has also been reported in Burkholderia and Serratia (Singh et al, 2016) and other Rhizobacteria (Pawar et al, 2019). PrnD, as a Rieske monooxygenase, typically comprises a terminal oxygenase, containing a domain formed by a Rieske iron-sulfur center [2Fe-2S] and a second domain containing a non-hemic mononuclear Fe, and a flavin reductase, which supplies the reduced flavin required for the activity.…”