Co-culturing fungus Penicillium citrinum and strain Citrobacter freundii improved nitrate removal and carbon utilization by promoting glyceride metabolism

Hu, Liyong; Wang, Zeyu; He, Jiamei; Lv, Sini; Zeng, Bin; Hrynsphan, Dzmitry; Savitskaya, Tatsiana

doi:10.1016/j.biortech.2022.127563

Cited by 7 publications

(13 citation statements)

References 48 publications

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“…Another problem associated with the fungal treatment systems is in controlling bacterial contamination, which is one of the most common issues in the non-aseptic fungal treatment of wastewater ( Espinosa-Ortiz et al, 2016 ). The proliferation of bacteria during fungal treatment of wastewater causes strong competition for the limited organic substrate, which impacts fungal metabolism because bacterial growth occurs on fungal filaments as support media ( Badia-Fabregat et al, 2017 ; Hu et al, 2022 ). In addition, in industrial applications, wastewater sterilization is quite expensive.…”

Section: Problems Associated With the Fungal Treatment Systems And Fu...mentioning

confidence: 99%

Filamentous fungi for sustainable remediation of pharmaceutical compounds, heavy metal and oil hydrocarbons

Ghosh

Rusyn

Dmytruk

et al. 2023

Front. Bioeng. Biotechnol.

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This review presents a comprehensive summary of the latest research in the field of bioremediation with filamentous fungi. The main focus is on the issue of recent progress in remediation of pharmaceutical compounds, heavy metal treatment and oil hydrocarbons mycoremediation that are usually insufficiently represented in other reviews. It encompasses a variety of cellular mechanisms involved in bioremediation used by filamentous fungi, including bio-adsorption, bio-surfactant production, bio-mineralization, bio-precipitation, as well as extracellular and intracellular enzymatic processes. Processes for wastewater treatment accomplished through physical, biological, and chemical processes are briefly described. The species diversity of filamentous fungi used in pollutant removal, including widely studied species of Aspergillus, Penicillium, Fusarium, Verticillium, Phanerochaete and other species of Basidiomycota and Zygomycota are summarized. The removal efficiency of filamentous fungi and time of elimination of a wide variety of pollutant compounds and their easy handling make them excellent tools for the bioremediation of emerging contaminants. Various types of beneficial byproducts made by filamentous fungi, such as raw material for feed and food production, chitosan, ethanol, lignocellulolytic enzymes, organic acids, as well as nanoparticles, are discussed. Finally, challenges faced, future prospects, and how innovative technologies can be used to further exploit and enhance the abilities of fungi in wastewater remediation, are mentioned.

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Section: Problems Associated With the Fungal Treatment Systems And Fu...mentioning

confidence: 99%

Filamentous fungi for sustainable remediation of pharmaceutical compounds, heavy metal and oil hydrocarbons

Ghosh

Rusyn

Dmytruk

et al. 2023

Front. Bioeng. Biotechnol.

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“…Another evidence to indicate a syntrophic consortium for AOM coupled to debromination/denitrification within biofilms was the enrichments related to the bromate-reducing bacteria, Gemmatimonas , Brevefilum , and Ornatilinea species, − and nitrate/nitrite-reducing bacteria, Pseudoxanthomonas and Citrobacter species, , which accounted for ca. 20–40% of the bacterial communities (Figure A,B).…”

Section: Resultsmentioning

confidence: 99%

Electrically Conductive Biofilms Assembled by Magnetite in Anaerobic Oxidation of Methane Coupled to Debromination/Denitrification

et al. 2022

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Direct interspecies electron transfer (DIET) in syntrophic consortia comprised of anaerobic methanotrophic (ANME) archaea or methanogens and their electron-accepting partners is enigmatic since the identification of DIET just via gene expression for electrically conductive filaments (e-filaments) or membrane-bound multiheme c-type cytochromes (MHCs) is currently incredible. Additional evidence from electrochemical perspectives are desired. The study presented here showed that, in the presence of magnetite, biofilms, on hollow fiber membranes of a membrane biofilm reactor, comprised of ANME archaea/methanogens with their bromate-/nitrate-reducing partners were electrically active, based on electrochemical Fourier transform infrared spectra. Biofilms assembled by magnetite exhibited considerably high conductivity that was an order of magnitude higher than that without magnetite. High biofilm conductivity lowered the charge-transfer resistance within cell-to-cell electron exchange. Close examination of electrostatic force microscopy images observed the potential interspecies-connected networks assembled by filaments, along which magnetite was localized. Combining with evidence that most of the bands in Raman spectra related to c-type cytochromes faded out, it was suggested that magnetite mediated DIET between ANME archaea/methanogens and bromate-/nitrate-reducing bacteria via replacing a proposed function of MHCs. As a result, anaerobic oxidation of methane coupled to the simultaneous reduction of two electron acceptors, bromate and nitrate, was promoted.

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“…TSJ96, the shaker test was carried out. 10 The colonies of Streptomyces sp. PYX97 and Streptomyces sp.…”

Section: Overlying Water Sampling and Mediummentioning

confidence: 99%

“…9 Additionally, the coculture of strains Penicillium citrinum and Citrobacter freundii enhanced their performance by more than 30% compared with their monocultures. 10 3.3. Aerobic Denitrification Capacity and Nitrogen Balance.…”

Section: Cell Growth and Organic Carbonmentioning

confidence: 99%

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Aerobic Denitrification Promoting by Actinomycetes Coculture: Investigating Performance, Carbon Source Metabolic Characteristic, and Raw Water Restoration

Ma,

Yang,

et al. 2023

Environ. Sci. Technol.

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The coculture theory that promotes denitrification relies on effectively utilizing the resources of low-efficiency denitrification microbes. Here, the strains Streptomyces sp. PYX97 and Streptomyces sp. TSJ96 were isolated and showed lower denitrification capacity when cultured individually. However, the coculture of strains PYX97 and TSJ96 enhanced nitrogen removal (removed 96.40% of total nitrogen) and organic carbon reduction (removed 92.13% of dissolved organic carbon) under aerobic conditions. Nitrogen balance analysis indicated that coculturing enhanced the efficiency of nitrate converted into gaseous nitrogen reaching 70.42%. Meanwhile, the coculturing promoted the cell metabolism capacity and carbon source metabolic activity. The coculture strains PYX97 and TSJ96 thrived in conditions of C/N = 10, alkalescence, and 150 rpm shaking speed. The coculturing reduced total nitrogen and COD Mn in the raw water treatment by 83.32 and 84.21%, respectively. During this treatment, the cell metabolic activity and cell density increased in the coculture strains PYX97 and TSJ96 reactor. Moreover, the coculture strains could utilize aromatic protein and soluble microbial products during aerobic denitrification processes in raw water treatment. This study suggests that coculturing inefficient actinomycete strains could be a promising approach for treating polluted water bodies.

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Co-culturing fungus Penicillium citrinum and strain Citrobacter freundii improved nitrate removal and carbon utilization by promoting glyceride metabolism

Cited by 7 publications

References 48 publications

Filamentous fungi for sustainable remediation of pharmaceutical compounds, heavy metal and oil hydrocarbons

Filamentous fungi for sustainable remediation of pharmaceutical compounds, heavy metal and oil hydrocarbons

Electrically Conductive Biofilms Assembled by Magnetite in Anaerobic Oxidation of Methane Coupled to Debromination/Denitrification

Aerobic Denitrification Promoting by Actinomycetes Coculture: Investigating Performance, Carbon Source Metabolic Characteristic, and Raw Water Restoration

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