Paulina Joanna WójtowiczUniversity of Warsaw | UW · Department of Medical Microbiology
Paulina Joanna Wójtowicz
M.Sc.
Tracking sources of Nontuberculous Mycobacteria
About
8
Publications
696
Reads
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25
Citations
Citations since 2017
Additional affiliations
October 2021 - November 2022
May 2021 - June 2021
Position
- Grantee
Description
- Short Term Scientific Mission (STSM); COST Action CA18113: EuroMicropH - Understanding and exploiting the impacts of low pH on micro-organisms; "Cysteine-driven metal sulfide biomineralization by Bacillus cereus at neutral and low pH"; supervisor: Prof. Daniela de Biase
November 2019 - June 2021
Position
- Research Investigator
Description
- https://staiculab.com/ Dr Lucian Staicu's NCN SONATA (2018-2021): 2017/26/D/NZ1/00408 “Co-respiration of arsenic and selenium in phylogenetically-diverse anaerobic bacteria: towards genetic, biochemical and evolutionary understanding” SCIENTIFIC MISSIONS (shorter than 4 weeks): 2021 - GFZ Helmholtz Centre Potsdam, Germany; 2021 - University of Pannonia, Veszprém, Hungary; 2021, 2020 - University of Potsdam, Germany; 2021, 2020 - Universidad de Granada, Spain;
Education
October 2017 - December 2019
University of Warsaw
Field of study
- (Molecular) Biotechnology
October 2014 - September 2017
Publications
Publications (8)
Bacteria play crucial roles in the biogeochemical cycle of arsenic (As) and selenium (Se) as these elements are metabolized via detoxification, energy generation (anaerobic respiration) and biosynthesis (e.g. selenocysteine) strategies. To date, arsenic and selenium biomineralization in bacteria were studied separately. In this study, the anaerobic...
Shewanella sp. O23S (Shewanella baltica) was isolated from a dissimilatory arsenate-reducing bacteria (DARB) microbial mat that inhabits the bottom sediments from an ancient gold mine (Złoty Stok, SW Poland) [1]. This strain is unusual in its versatile metabolism of selenium (Se) and arsenic (As), being capable of both detoxification and respiratio...
The treatment of metal‐laden industrial effluents by reverse osmosis is gaining in popularity worldwide due to its high performance. However, this process generates a polymetallic concentrate (retentate) stream in need of efficient post‐treatment prior to environmental discharge. This paper presents results on the bioremediation (in batch mode) of...
Industry is constantly searching for methods to treat waste fluxes in an attempt to minimize its environmental impact. Reverse osmosis (RO) is an efficient treatment system, generating a permeate stream (purified water passing through the membrane) and a retentate stream, which concentrates the constituents rejected by the membrane. Currently, a ho...
The presentation explores the fundamentals of selenium metabolism in bacteria and its biotechnological applications.
Bacillus sp. Abq, belonging to Bacillus cereus sensu lato, was isolated from an aquifer in New Mexico, USA and phylogenetically classified. The isolate possesses the unusual property of precipitating Pb(II) by using cysteine, which is degraded intracellularly to hydrogen sulfide (H2S). H2S is then exported to the extracellular environment to react...
The seminar covered aspects related to the biomineralization of selenium and lead in bacteria and was hosted by prof. Anderas Kappler at Applied Earth Sciences (ZAG), University of Tübingen.
Projects
Projects (3)
This project aims to optimize the treatment of the reject (retentate) streams produced by reverse osmosis (RO) units employed in the remediation of metal-laden industrial effluents. The treatment involves the use of specialized bacterial cultures (bioremediation) capable of arsenic (As) and selenium (Se) anaerobic respiration. In addition, selective chemical precipitation is used to recover valuable minerals and stabilize pollutants. The partners involved in the project are from Spain (University of Oviedo and University of Granada) and Poland (University of Warsaw).
The main aim of this project is to understand the respiration of arsenic and selenium oxyanions in phylogenetically-diverse anaerobic bacteria and to interpret this process from a broad perspective, including genetics, physiology and biochemistry.
Examination of fundamental aspects related to the understanding of lead toxicity in bacteria. The practical aspects would be related to the bioremediation of metal-laden industrial effluents and the production of functional materials, e.g. PbS
