Mateusz Sydow
Poznań University of Technology
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Featured researches published by Mateusz Sydow.
Ecotoxicology and Environmental Safety | 2018
Mateusz Sydow; Mikolaj Owsianiak; Grzegorz Framski; Marta Woźniak-Karczewska; Agnieszka Piotrowska-Cyplik; Łukasz Ławniczak; Alicja Szulc; Agnieszka Zgoła-Grześkowiak; Hermann J. Heipieper; Łukasz Chrzanowski
Little is known about the effect of ionic liquids (ILs) on the structure of soil microbial communities and resulting biodiversity. Therefore, we studied the influence of six trihexyl(tetradecyl)phosphonium ILs (with either bromide or various organic anions) at sublethal concentrations on the structure of microbial community present in an urban park soil in 100-day microcosm experiments. The biodiversity decreased in all samples (Shannons index decreased from 1.75 down to 0.74 and OTUs number decreased from 1399 down to 965) with the largest decrease observed in the microcosms spiked with ILs where biodegradation extent was higher than 80%. (i.e. [P66614][Br] and [P66614][2,4,4]). Despite this general decrease in biodiversity, which can be explained by ecotoxic effect of the ILs, the microbial community in the microcosms was enriched with Gram-negative hydrocarbon-degrading genera e.g. Sphingomonas. It is hypothesized that, in addition to toxicity, the observed decrease in biodiversity and change in the microbial community structure may be explained by the primary biodegradation of the ILs or their metabolites by the mentioned genera, which outcompeted other microorganisms unable to degrade ILs or their metabolites. Thus, the introduction of phosphonium-based ILs into soils at sub-lethal concentrations may result not only in a decrease in biodiversity due to toxic effects, but also in enrichment with ILs-degrading bacteria.
New Biotechnology | 2016
Mateusz Sydow; Mikolaj Owsianiak; Zuzanna Szczepaniak; Grzegorz Framski; Barth F. Smets; Łukasz Ławniczak; Piotr Lisiecki; Alicja Szulc; Paweł Cyplik; Łukasz Chrzanowski
It is not known whether diesel-degrading bacterial communities are structurally and functionally robust when exposed to different hydrocarbon types. Here, we exposed a diesel-degrading consortium to model either alkanes, cycloalkanes or aromatic hydrocarbons as carbon sources to study its structural resistance. The structural resistance was low, with changes in relative abundances of up to four orders of magnitude, depending on hydrocarbon type and bacterial taxon. This low resistance is explained by the presence of hydrocarbon-degrading specialists in the consortium and differences in growth kinetics on individual hydrocarbons. However, despite this low resistance, structural and functional resilience were high, as verified by re-exposing the hydrocarbon-perturbed consortium to diesel fuel. The high resilience is either due to the short exposure time, insufficient for permanent changes in consortium structure and function, or the ability of some consortium members to be maintained during exposure on degradation intermediates produced by other members. Thus, the consortium is expected to cope with short-term exposures to narrow carbon feeds, while maintaining its structural and functional integrity, which remains an advantage over biodegradation approaches using single species cultures.
Journal of Environmental Management | 2017
Mateusz Sydow; Łukasz Chrzanowski; Nina Cedergreen; Mikolaj Owsianiak
Development of comparative toxicity potentials of cationic metals in soils for applications in hazard ranking and toxic impact assessment is currently jeopardized by the availability of experimental effect data. To compensate for this deficiency, data retrieved from experiments carried out in standardized artificial soils, like OECD soils, could potentially be tapped as a source of effect data. It is, however, unknown whether such data are applicable to natural soils where the variability in pore water concentrations of dissolved base cations is large, and where mass transfer limitations of metal uptake can occur. Here, free ion activity models (FIAM) and empirical regression models (ERM, with pH as a predictor) were derived from total metal EC50 values (concentration with effects in 50% of individuals) using speciation for experiments performed in artificial OECD soils measuring ecotoxicological endpoints for terrestrial earthworms, potworms, and springtails. The models were validated by predicting total metal based EC50 values using backward speciation employing an independent set of natural soils with missing information about ionic composition of pore water, as retrieved from a literature review. ERMs performed better than FIAMs. Pearsons r for log10-transformed total metal based EC50s values (ERM) ranged from 0.25 to 0.74, suggesting a general correlation between predicted and measured values. Yet, root-mean-square-error (RMSE) ranged from 0.16 to 0.87 and was either smaller or comparable with the variability of measured EC50 values, suggesting modest performance. This modest performance was mainly due to the omission of pore water concentrations of base cations during model development and their validation, as verified by comparisons with predictions of published terrestrial biotic ligand models. Thus, the usefulness of data from artificial OECD soils for global-scale assessment of terrestrial ecotoxic impacts of Cd, Pb and Zn in soils is limited due to relatively small variability of pore water concentrations of dissolved base cations in OECD soils, preventing their inclusion in development of predictive models. Our findings stress the importance of considering differences in ionic composition of soil pore water when characterizing terrestrial ecotoxicity of cationic metals in natural soils.
Journal of Environmental Management | 2014
Alicja Szulc; Damian Ambrożewicz; Mateusz Sydow; Łukasz Ławniczak; Agnieszka Piotrowska-Cyplik; Roman Marecik; Łukasz Chrzanowski
International Biodeterioration & Biodegradation | 2015
Mateusz Sydow; Zuzanna Szczepaniak; Grzegorz Framski; Justyna Staninska; Mikolaj Owsianiak; Alicja Szulc; Agnieszka Piotrowska-Cyplik; Agnieszka Zgoła-Grześkowiak; Bogdan Wyrwas; Łukasz Chrzanowski
Archive | 2017
Michalina Adaszyńska-Skwirzyńska; Marcin Chodkowski; Joanna Cymerys-Bulenda; Anna Słońska; Joanna Brzezicka; M.W. Bańbura; Karolina Furtak; Magdalena Jakubczyk; Sławomir Michałkiewicz; Kamila Kasprzak; Anna Oniszczuk; Karol Kupryaniuk; Tomasz Oniszczuk; Agnieszka Wójtowicz; Maciej Combrzyński; Magdalena Kręcisz; Arkadiusz Matysiak; Anna Smurzyńska; Paulina Lipa; Marta Palusińska-Szysz; Łukasz Łopusiewicz; Anna Parus; Marta Woźniak-Karczewska; Mateusz Sydow; Grzegorz Framski; Kamila Rachwał; Magdalena Kopycińska; Monika Janczarek; Natalia Skubij; Magdalena Szaniawska
Archive | 2016
Mateusz Sydow; Anna Parus; Grzegorz Framski; Marta Woźniak; Łukasz Chrzanowski
Archive | 2016
Marta Woźniak; Anna Parus; Mateusz Sydow; Grzegorz Framski
Archive | 2016
Mateusz Sydow; Piotr Lisiecki; Mikolaj Owsianiak; Alicja Szulc; Anna Parus; Łukasz Chrzanowski
Niezbędnik inteligenta | 2016
Mateusz Sydow; Łukasz Chrzanowski