Oxygen Reduction Reaction Affected by Sulfate-Reducing Bacteria: Different Roles of Bacterial Cells and Metabolites

Wu, Jiajia; Liu, Huaiqun; Wang, Peng; Zhang, Dun; Sun, Yan; Li, Ee

doi:10.1007/s12088-017-0667-z

Cited by 10 publications

(6 citation statements)

References 30 publications

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“…The general primer set 27F/1492R for the quantification of bacterial 16S rRNA gene with a 1.5-kb expected product size was used to look for bacterial infections ( Table-2 ) [ 12 - 15 ]. Polymerase chain reaction (PCR) was performed in a 25-mL reaction mixture in an Eppendorf Thermocycler.…”

Section: Methodsmentioning

confidence: 99%

Clinical and histopathological studies on neurodegeneration and dysautonomia in buffalo calves during foot-and-mouth disease outbreaks in Egypt

et al. 2021

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Background and Aim: Signs of dysautonomia were frequently observed in calves that died during foot-and-mouth disease (FMD) virus (FMDV) outbreaks in Egypt from 2015 to 2018. This study aimed to describe the clinical and histopathological features of the central nervous system in malignant cases of FMD and excluding possible concurrent bacterial, and bovine herpes virus 4 (BHV4) infections or both. Materials and Methods: In this study, 335 FMDV-infected buffalo calves aged 1-22 months were clinically examined and followed until recovery or death. Of the 335 calves, 134 died (malignant group) and 201 recovered after exhibiting classic symptoms of FMD (recover group). The calves were subjected to clinical examination. For the malignant group, several laboratory trials were conducted to assess the possible cause/s of dysautonomia-related viral, bacterial, or concurrent infections. Koch's postulates and polymerase chain reaction were employed. Postmortem and histopathological examinations of nervous tissue were performed. Results: In the malignant group, signs of dysautonomia were observed before death, including partial or complete gut dysfunction, loss of anal sphincter tone, rapid breathing sounds, fluctuating body temperature, and cardiac arrhythmias. In the malignant group, histopathological examination of the spinal cord, pons, medulla oblongata, hypothalamus, cerebellum, and cerebrum revealed demyelination, neuronal degeneration, and focal areas of malacia and gliosis. The nervous tissue and heart samples from malignant cases were positive for serotype O FMDV. Conclusion: Findings revealed in this study support the existence of neurodegeneration induced by FMDV infection in buffalo calves.

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Section: Methodsmentioning

confidence: 99%

Clinical and histopathological studies on neurodegeneration and dysautonomia in buffalo calves during foot-and-mouth disease outbreaks in Egypt

et al. 2021

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“…This happened in P1 treatment and P2 treatment, while P3 as control was not supported by sediment as an inoculum source of sulfate-reducing bacteria (Fukui and Takii, 1996). The mechanism of sulfate reduction in acid mine drainage by the sulfate-reducing bacteria produces sulfides and bicarbonates that have an effect on increasing pH; then the sulfides will react with dissolved metal ions to form insoluble metal sulfides (Pester et al, 2012;Wu et al, 2017). Hydrogen ions are released when sulfide minerals react with water and cause a decrease in the pH value in acid mine drainage.…”

Section: Change In Phmentioning

confidence: 99%

“…The microorganisms that are used to reduce sulfates in acid mine drainage bioremediation are a group of sulfate-reducing bacteria. These bacteria, in doing sulfate reduction, produce hydrogen sulfide (H2S) and hydroxyl ions (OH -) and thus, stimulate an increase in pH (Meier et al, 2012;Wu et al, 2017). Sulfate-reducing bacteria mostly live in wetland substrates such as swamp sediments.…”

Section: Introductionmentioning

confidence: 99%

Treatment of compost as a source of organic material for bacterial consortium in the removal of sulfate and heavy metal lead (Pb) from acid mine drainage

Fahruddin

Nafie

Abdullah

et al. 2021

J.Degrade.Min.Land Manage.

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Acid mine drainage can pollute the environment because it is acidic and contains toxic heavy metals. The purpose of this research was the application of a bacterial consortium to remove sulfate and reduce heavy metal lead (Pb) in acid mine drainage. The application was done in the bioreactor for acid mine drainage treatment that was treated with compost. Observations were made every five days and included observation of total bacterial growth using the Standard Plate Count (SPC) method, determination of sulfate content by gravimetry, determination of pH by use of pH meter, and determination of the concentration of heavy metal Pb using the AAS method. As a result, it was obtained that the treatment of non-sterile compost in acid mine drainage was able to reduce the initial heavy metal concentration of Pb of 84% and reduce the sulfate content by 72%, along with increasing pH and an increase in total bacterial growth. Meanwhile, sterile compost treatment was only able to reduce the Pb content by 63% and sulfate by 54%. This result indicates that the addition of compost is more effective than the treatment of sterile compost.

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“…The sulfate reduction process by the group of sulfate-reducing bacteria produces sulfide and bicarbonate that causes an increase in pH, the sulfide will react with the dissolved metal ions to create insoluble metal sulfides (Wu et al, 2017).…”

Section: Change In Ph Valuesmentioning

confidence: 99%

Estuary Sediment Treatment for Reducing Sulfate in Acid Mine Water

Fahruddin

Abdullah

Nurhaedar

et al. 2020

Environ. Nat. Resour. J.

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Acid mine water causes environmental problems due to its high acidity caused by its high sulfate content which can disturb the life of organisms. This problem can be resolved by utilizing sulfate-reducing bacteria (SRB) abundantly found in sediments. The purpose of this research is to study the use of estuary sediments as a source of SRB inoculums to reduce sulfate in acid mine water. The bioremediation treatment of acid mine water is carried out in a column bioreactor, with treatment T1 comprising of sediment and compost, and then comparing it to treatments T2 of sediment, T3 of compost, and T4 as the control treatment of only acid mine water. Results show that treatment T1 was able to reduce sulfate concentrations by 78%, compared to T2 by 56%, T3 by 21% and T4 by 5%. The reduction of sulfate was followed by increases in pH where T1 reached a pH value of 7.1, compared to treatments T2 and T3 which had pH values less than 5.5, whereas treatment T4 had a pH of 2.2. The reduced sulfate and increased pH was also followed by an increase of SRB growth, especially in T1. Estuary sediments as a source of SRB inoculums can be used in the bioremediation of acid mine water by adding compost to maximize the process of sulfate reduction and pH increase.Citation: Fahruddin F, Abdullah A, Nurhaedar, Nafie NL. Estuary sediment treatment for reducing sulfate in acid mine water. Environ. Nat.Resour.

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Oxygen Reduction Reaction Affected by Sulfate-Reducing Bacteria: Different Roles of Bacterial Cells and Metabolites

Cited by 10 publications

References 30 publications

Clinical and histopathological studies on neurodegeneration and dysautonomia in buffalo calves during foot-and-mouth disease outbreaks in Egypt

Clinical and histopathological studies on neurodegeneration and dysautonomia in buffalo calves during foot-and-mouth disease outbreaks in Egypt

Treatment of compost as a source of organic material for bacterial consortium in the removal of sulfate and heavy metal lead (Pb) from acid mine drainage

Estuary Sediment Treatment for Reducing Sulfate in Acid Mine Water

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