Aerobic biotransformation of 6:2 fluorotelomer sulfonate by Dietzia aurantiaca J3 under sulfur-limiting conditions

Simultaneous nitrate and sulfate biotransformation driven by different substrates: comparison of carbon sources and metabolic pathways at different C/N ratios

“…At the genus level, Dietzia is an aerobic denitrifying bacterium with a strong petroleum hydrocarbon degradation activity. 45,46 It was only enriched in Rb, with a relative abundance of more than 1%, consistent with the higher DO level in Rb. It can be deduced from the major microbial communities that the higher DO level in the system with sodium succinate as the carbon source is due to more rapid COD depletion.…”

Stability and Biotransformation of 6:2 Fluorotelomer Sulfonic Acid, Sulfonamide Amine Oxide, and Sulfonamide Alkylbetaine in Aerobic Sludge

“…PFHpA, the most abundant terminal PFCA observed in this study, was not detected in previous reports on the biotransformation of 6:2 FTSA by aerobic sludge, 45 aerobic soil, 57 Gordonia sp. strain NB4-1Y, 40 Dietzia aurantiaca J3, 58 and earthworms. 57 Only <1 mol % of PFHpA was generated despite the complete biodegradation of 6:2 FTSA by Rhodococcus jostii RHA1 59 and microorganisms in sediment.…”

Using Network Analysis and Predictive Functional Analysis to Explore the Fluorotelomer Biotransformation Potential of Soil Microbial Communities

“…With greater than 60% similarity in amino acid sequence to haloacetate dehalogenase, haloalkane dehalogenase (K01563) was found to degrade a variety of chlorinated, brominated, and iodinated compounds. − Recently, a study examining genes involved in 6:2 FTS biotransformation by Rhodococcus jostii RHA1, found that alkanesulfonate monooxygenase is associated with 6:2 FTS desulfonation, while haloacid dehalogenase (K01560), alkane monooxygenase (K00496), and cytochrome P450 (K16389) are linked to defluorination . Another recent study reported that a gene cluster in Dietzia aurantiaca J3 encoding an FMN reductase ( ssuE , K00299), an alkanesulfonate monooxygenase component B ( ssuD , K04091), an alkanesulfonate permease protein ( ssuC , K15554), an ABC transporter ( ssuB , K15555), and an alkanesulfonate-binding protein ( ssuA , K15553) are involved in 6:2 FTS biotranformation . Additionally, to mitigate fluoride toxicity, a previous researcher has speculated the existence of a fluoride-proton antiporter to expel fluoride from the cell in polyfluorinated compounds degraders .…”

“…The genes with significant changes in abundance (an absolute log2-fold change > 2 and an FDR-adjusted P -value < 0.05) were picked as candidates for further investigation. In addition, the genes potentially related to PFAS degradation identified or predicted in previous research were manually picked. − The genes involved in xenobiotic biodegradation and metabolism according to the KEGG pathway annotation and shared between different microcosm experiments were pooled with the manually picked genes and subjected to subsequent functional analyses to reveal the potential association between functional genes and microorganisms.…”

“…61 Another recent study reported that a gene cluster in Dietzia aurantiaca J3 encoding an FMN reductase (ssuE, K00299), an alkanesulfonate monooxygenase component B (ssuD, K04091), an alkanesulfonate permease protein (ssuC, K15554), an ABC transporter (ssuB, K15555), and an alkanesulfonate-binding protein (ssuA, K15553) are involved in 6:2 FTS biotranformation. 60 Additionally, to mitigate fluoride toxicity, a previous researcher has speculated the existence of a fluoride-proton antiporter to expel fluoride from the cell in polyfluorinated compounds degraders. 62 One common fluoridespecific riboswitch encoded by the crcB gene (K06199) that can serve as a fluoride-proton antiporter was also identified in this study.…”