Elucidating Multiple Electron-Transfer Pathways for Metavanadate Bioreduction by Actinomycetic Streptomyces microflavus

Environmental Science & Technology, Год журнала: 2023, Номер 57(48), С. 19921 - 19931

Опубликована: Ноя. 7, 2023

While microbial reduction has gained widespread recognition for efficiently remediating environments polluted by toxic metavanadate [V(V)], the pool of identified V(V)-reducing strains remains rather limited, with vast majority belonging to bacteria and fungi. This study is among first confirm V(V) capability Streptomyces microflavus, a representative member ubiquitous actinomycetes in environment. A removal efficiency 91.0 ± 4.35% was achieved during 12 days operation, maximum specific growth rate 0.073 d–1. bioreduced insoluble V(IV) precipitates. took place both intracellularly extracellularly. Electron transfer enhanced bioreduction increased electron transporters. The electron-transfer pathways were revealed through transcriptomic, proteomic, metabolomic analyses. Electrons might flow either respiratory chain reduce intracellular or cytochrome c on outer membrane extracellular reduction. Soluble riboflavin quinone also possibly mediated Glutathione deliver electrons Bioaugmentation aquifer sediment S. microflavus accelerated strain could successfully colonize foster positive correlations indigenous microorganisms. offers new resources bioremediation improve understanding involved molecular mechanisms.

Язык: Английский

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A halophilic aerobic-heterotrophic strain Halomonas venusta SND-01: Nitrogen removal by ammonium assimilation and heterotrophic nitrification-aerobic denitrification

Bioresource Technology, Год журнала: 2023, Номер 374, С. 128758 - 128758

Опубликована: Фев. 17, 2023

Язык: Английский

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Review of the mechanisms involved in dissimilatory nitrate reduction to ammonium and the efficacies of these mechanisms in the environment

Environmental Pollution, Год журнала: 2024, Номер 345, С. 123480 - 123480

Опубликована: Фев. 5, 2024

Язык: Английский

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Heterotrophic anodic denitrification coupled with cathodic metals recovery from on-site smelting wastewater with a bioelectrochemical system inoculated with mixed Castellaniella species

Water Research, Год журнала: 2023, Номер 231, С. 119655 - 119655

Опубликована: Янв. 23, 2023

Язык: Английский

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Enhanced heterotrophic nitrification and aerobic denitrification performance of Glutamicibacter arilaitensis EM-H8 with different carbon sources

Chemosphere, Год журнала: 2023, Номер 323, С. 138266 - 138266

Опубликована: Март 1, 2023

Язык: Английский

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Genomics and metabolic characteristics of simultaneous heterotrophic nitrification aerobic denitrification and aerobic phosphorus removal by Acinetobacter indicus CZH-5

Bioresource Technology, Год журнала: 2024, Номер 395, С. 130322 - 130322

Опубликована: Янв. 17, 2024

Язык: Английский

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Nitrogen removal capability and mechanism of a novel heterotrophic nitrification–aerobic denitrification bacterium Halomonas sp. DN3

Bioresource Technology, Год журнала: 2023, Номер 387, С. 129569 - 129569

Опубликована: Июль 28, 2023

Язык: Английский

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Nitrogen removal characteristics of efficient heterotrophic nitrification-aerobic denitrification bacterium and application in biological deodorization

Bioresource Technology, Год журнала: 2022, Номер 363, С. 128007 - 128007

Опубликована: Сен. 22, 2022

Язык: Английский

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Efficient detoxication of hydroxylamine and nitrite through heterotrophic nitrification and aerobic denitrification by Acinetobacter johnsonii EN-J1

Frontiers in Microbiology, Год журнала: 2023, Номер 14

Опубликована: Апрель 17, 2023

The co-existence of hydroxylamine (NH 2 OH) and nitrite (NO – -N) can aggravate the difficulty wastewater treatment. roles in accelerating elimination multiple nitrogen sources by a novel isolated strain Acinetobacter johnsonii EN-J1 were investigated this study. results demonstrated that could eliminate 100.00% NH OH (22.73 mg/L) 90.09% NO -N (55.32 mg/L), with maximum consumption rates 1.22 6.75 mg/L/h, respectively. Prominently, toxic substances both facilitate removal rates. Compared control treatment, nitrate 3 enhanced 3.44 2.36 mg/L/h after supplementation 10.00 mg/L OH, those ammonium 4 + improved 0.65 1.00 addition 50.00 -N. Furthermore, balance indicated over 55.00% initial total was transformed into gaseous heterotrophic nitrification aerobic denitrification (HN-AD). Ammonia monooxygenase (AMO), oxidoreductase (HAO), reductase (NR), (NIR), which are essential for HN-AD, detected at levels 0.54, 0.15, 0.14, 0.01 U/mg protein, All findings confirmed efficiently execute detoxify -N, ultimately promote

Язык: Английский

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Klebsiella oxytoca (EN-B2): A novel type of simultaneous nitrification and denitrification strain for excellent total nitrogen removal during multiple nitrogen pollution wastewater treatment

Bioresource Technology, Год журнала: 2022, Номер 367, С. 128236 - 128236

Опубликована: Ноя. 2, 2022

Язык: Английский

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