Screening of Carbofuran-Degrading Bacteria Chryseobacterium sp. BSC2-3 and Unveiling the Change in Metabolome during Carbofuran Degradation

• Published in: Metabolites Vol. 12; no. 3; p. 219
• Main Authors: Park, Haeseong, Seo, Sun Il, Lim, Ji-Hwan, Song, Jaekyeong, Seo, Joo-Hyun, Kim, Pyoung Il
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 01.03.2022; MDPI
• Subjects: Agriculture; aromatic compound degradation; Auxins; Bacteria; Biodegradation; Bioremediation; Carbofuran; Chryseobacterium; Cytochrome; Disease resistance; Genes; Genomes; Growth regulators; Indoleacetic acid; Insecticides; Intracellular; Liquid chromatography; Mass spectroscopy; Metabolic pathways; Metabolism; Metabolites; Metabolomics; Microorganisms; Naphthalene; Pesticides; Pests; plant growth-promoting microorganism; Proline; Quinones; Soil pollution; Sulfur; Ubiquinone; Water pollution; bioremediation; carbofuran; aromatic compound degradation; metabolomics; plant growth-promoting microorganism
• ISSN: 2218-1989; 2218-1989
• DOI: 10.3390/metabo12030219

Carbofuran is one of the most commonly used N-methylcarbamate-based pesticides and is excellent for controlling pests; however, carbofuran also causes soil and water pollution. Although various studies have been conducted on the bioremediation of pesticide-contaminated soil, the changes occurring in the metabolome during the bioremediation of carbofuran are not fully understood. In this study, the intracellular and extracellular metabolites of the sp. BSC2-3 strain were analysed during carbofuran degradation by using a liquid chromatography-mass spectrometry-based metabolomics approach. We found that the BSC2-3 strain extracellularly transformed carbofuran into 3-hydroxycarbofuran. Intracellular metabolite analysis revealed that carbofuran mainly affected aminobenzoate degradation, ubiquinone and terpenoid-quinone biosynthesis, and arginine and proline metabolism. Carbofuran especially affected the metabolic pathway for the degradation of naphthalene and aminobenzoate. Metabolomics additionally revealed that the strain produces disease resistance inducers and plant growth regulators. We also identified the genes involved in the production of indole-3-acetic acid, which is one of the most active auxins. Overall, we identified the metabolic changes induced in carbofuran-degrading bacteria and the genes predicted to be responsible for the degradation of carbofuran.