Seed treatment with prodigiosin controls damping-off of cucumber caused by Pythium ultimum.

ABSTRACT: Ethanol extract of cell mass of Serratia marcescens strain N4-5, when applied as a treatment to cucumber seed, has been shown to provide control of the oomycete soil-borne plant pathogen Pythium ultimum equivalent to that provided by a seed-treatment chemical pesticide in some soils. Two dominant compounds in this extract, prodigiosin and the serratamolide serrawetin W1, were identified based on mass and collision induced dissociation mass fragmentation spectra. An additional four compounds with M+H⁺ masses (487, 541, 543, and 571) consistent with serratamolides reported in the literature were also detected. Several other compounds with M+H⁺ masses of 488, 536, 684, 834, 906, and 908 m/z were detected in this ethanol extract inconsistently over multiple liquid chromat

SUBMITTER: Roberts DP 

PROVIDER: S-EPMC7788126 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature