dr Klaudia Dębiec-Andrzejewska

Dr Klaudia Dębiec-Andrzejewska, assistant professor, leader of the Laboratory of Agricultural and Industrial Microbiology. Her scientific work focuses on the use of extremotolerant bacteria and their metabolites such as siderophores, biosurfactants and osmoprotectants for soil biostimulation, remediation, and plant biofortification. She develops microbial formulations and bio-based technologies that enhance soil fertility, immobilize or remove potentially toxic elements, and reduce the need for mineral fertilizers, thus supporting sustainable agriculture. Her research combines fundamental soil microbial ecology and close plants-microbes interactions with applied (agro)biotechnological innovation, resulting in patented microbial compositions and practical solutions for soil and crop management.
Scientific interests
- Environmental and agricultural microbiology
- Regeneration and biostimulation of agricultural soil
- Biofortification and biostimulation of crops
- Plant-microbe interactions and soil microbiome modulation
- Development and application of microbial metabolites (siderophores, biosurfactants, osmoprotectants) in agriculture
- Translating microbial research into commercial bio-based technologies
Publications
2025
Musiałowski, Marcin; Mierzwa-Hersztek, Monika; Gondek, Krzysztof; Dębiec-Andrzejewska, Klaudia
A novel two-step metabarcoding approach improves soil microbiome biodiversity assessment Journal Article
In: Sci Rep, vol. 15, no. 1, 2025, ISSN: 2045-2322.
@article{Musiałowski2025,
title = {A novel two-step metabarcoding approach improves soil microbiome biodiversity assessment},
author = {Marcin Musiałowski and Monika Mierzwa-Hersztek and Krzysztof Gondek and Klaudia Dębiec-Andrzejewska},
doi = {10.1038/s41598-025-18936-5},
issn = {2045-2322},
year = {2025},
date = {2025-12-00},
urldate = {2025-12-00},
journal = {Sci Rep},
volume = {15},
number = {1},
publisher = {Springer Science and Business Media LLC},
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pubstate = {published},
tppubtype = {article}
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Jarosz, Renata; Klimkowicz-Pawlas, Agnieszka; Biel, Karolina; Mokrzycki, Jakub; Musiałowski, Marcin; Dębiec-Andrzejewska, Klaudia; Mierzwa-Hersztek, Monika
Effect of innovative mineral-organic mixtures on enzymatic activity, ecotoxicity, and microbial communities in contaminated soil Journal Article
In: Soil and Tillage Research, vol. 253, 2025, ISSN: 0167-1987.
@article{Jarosz2025,
title = {Effect of innovative mineral-organic mixtures on enzymatic activity, ecotoxicity, and microbial communities in contaminated soil},
author = {Renata Jarosz and Agnieszka Klimkowicz-Pawlas and Karolina Biel and Jakub Mokrzycki and Marcin Musiałowski and Klaudia Dębiec-Andrzejewska and Monika Mierzwa-Hersztek},
doi = {10.1016/j.still.2025.106655},
issn = {0167-1987},
year = {2025},
date = {2025-11-00},
journal = {Soil and Tillage Research},
volume = {253},
publisher = {Elsevier BV},
keywords = {},
pubstate = {published},
tppubtype = {article}
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Salinitro, Mirko; Schiavon, Michela; Musiałowski, Marcin; Dębiec-Andrzejewska, Klaudia; Aarts, Mark G. M.; Padoan, Elio; Montanarini, Benedetta; Tassoni, Annalisa; van der Ent, Antony
From waste to value: agromining of nickel, cobalt, and selenium from mine waste amended with sewage sludge Journal Article
In: Plant Soil, 2025, ISSN: 1573-5036.
@article{Salinitro2025c,
title = {From waste to value: agromining of nickel, cobalt, and selenium from mine waste amended with sewage sludge},
author = {Mirko Salinitro and Michela Schiavon and Marcin Musiałowski and Klaudia Dębiec-Andrzejewska and Mark G. M. Aarts and Elio Padoan and Benedetta Montanarini and Annalisa Tassoni and Antony van der Ent},
doi = {10.1007/s11104-025-07924-3},
issn = {1573-5036},
year = {2025},
date = {2025-10-17},
journal = {Plant Soil},
publisher = {Springer Science and Business Media LLC},
abstract = {Abstract
Background and aims
The global demand for critical elements such as nickel, cobalt, and selenium is projected to increase significantly, driven by the transition to renewable energy. Mine wastes and sewage sludge, often enriched with these elements, represent untapped secondary resources. Agromining, an emerging phytotechnology that employs hyperaccumulator plants to extract metals from contaminated or enriched soils, offers a sustainable recovery method. The aim of this study is to provide a crucial proof-of-concept for the recovery of the critical elements nickel, cobalt, and selenium from these alternative resources through agromining.
Methods
Mine wastes from three Italian mining sites were amended with sewage sludge at rates of 0, 15, and 30 kg m−2 . Three hyperaccumulator species targeting cobalt, (Berkheya coddii) , selenium (Astragalus bisulcatus ) and nickel (Odontarrhena chalcidica ) were grown on these wastes. Biogeochemical characterization of the substrate was performed before and after agromining. In addition, plant biomass and metal accumulation were monitored.
Results
Sewage sludge increased biomass across all species, especially in A. bisulcatus , but metal accumulation decreased by 33–60% for nickel, 0–41% for cobalt, and 67–74% for selenium. Furthermore, sewage sludge and agromining enhanced mine waste fertility and microbial diversity.
Conclusions
Agromining of sewage sludge-amended mine wastes shows potential for sustainable recovery of selenium and cobalt. However, high sewage sludge application increased plant biomass, but concurrently reduced plant tissue metal concentrations. This study underscores the importance of optimizing sewage sludge / mine waste ratios for successful agromining.
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Goszcz, Aleksandra; Furtak, Karolina; Stasiuk, Robert; Wójtowicz, Joanna; Musiałowski, Marcin; Schiavon, Michela; Dębiec-Andrzejewska, Klaudia
Bacterial osmoprotectants—a way to survive in saline conditions and potential crop allies Journal Article
In: vol. 49, 2025, ISSN: 1574-6976.
@article{Goszcz2025b,
title = {Bacterial osmoprotectants—a way to survive in saline conditions and potential crop allies},
author = {Aleksandra Goszcz and Karolina Furtak and Robert Stasiuk and Joanna Wójtowicz and Marcin Musiałowski and Michela Schiavon and Klaudia Dębiec-Andrzejewska},
doi = {10.1093/femsre/fuaf020},
issn = {1574-6976},
year = {2025},
date = {2025-00-00},
volume = {49},
publisher = {Oxford University Press (OUP)},
abstract = {Abstract
Soil salinization, affecting 6.5% of arable land, deteriorates soil properties, reduces microbiota activity, hinders plant growth, and accelerates soil erosion. Excessive salt induces physiological drought and toxicity stress in plants, causing chlorosis, ion imbalances, and enzyme disruptions. This paper discusses microorganisms’ resistance mechanisms, plant responses to salt stress, and summarizes current knowledge on bacterial osmoprotectants and their functions. It also reviews emerging agrobiotechnological strategies using microbial osmoprotectants to remediate salinized soils and enhance plant growth and productivity under salt stress. Osmoprotectants stabilize proteins, buffer redox potential, and retain water, thus alleviating osmotic stress and promoting bacteria and plants growth. Their application improves soil properties by enhancing aggregate formation, water permeability, moisture content, cation exchange capacity, and ion availability. Despite extensive literature on the function of osmoprotectants, the knowledge about their role in soil environments and agrobiotechnology applications remains limited. This paper indicates proposed research perspectives, including discovering new osmoprotectants, their correlation with soil fertilization, interactions with the soil microbiome, and plant responses. It also identifies significant knowledge gaps in these areas, highlighting the need for further studies to consolidate existing data and assess the potential of this approach to enhance soil health and crop productivity in saline environments. },
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2024
Vaccaro, Francesca; Passeri, Iacopo; Ajijah, Nur; Bettini, Priscilla; Courty, Pierre Emmanuel; Dębiec-Andrzejewska, Klaudia; Joshi, Namrata; Kowalewska, Łucja; Stasiuk, Robert; Musiałowski, Marcin; Pranaw, Kumar; Mengoni, Alessio
Genotype-by-genotype interkingdom cross-talk between symbiotic nitrogen fixing Sinorhizobium meliloti strains and Trichoderma species Journal Article
In: Microbiological Research, vol. 285, 2024, ISSN: 0944-5013.
@article{Vaccaro2024c,
title = {Genotype-by-genotype interkingdom cross-talk between symbiotic nitrogen fixing Sinorhizobium meliloti strains and Trichoderma species},
author = {Francesca Vaccaro and Iacopo Passeri and Nur Ajijah and Priscilla Bettini and Pierre Emmanuel Courty and Klaudia Dębiec-Andrzejewska and Namrata Joshi and Łucja Kowalewska and Robert Stasiuk and Marcin Musiałowski and Kumar Pranaw and Alessio Mengoni},
doi = {10.1016/j.micres.2024.127768},
issn = {0944-5013},
year = {2024},
date = {2024-08-00},
journal = {Microbiological Research},
volume = {285},
publisher = {Elsevier BV},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2023
Zakrzewska, Marta; Rzepa, Grzegorz; Musialowski, Marcin; Goszcz, Aleksandra; Stasiuk, Robert; Debiec-Andrzejewska, Klaudia
In: Front. Plant Sci., vol. 14, 2023, ISSN: 1664-462X.
@article{Zakrzewska2023b,
title = {Reduction of bioavailability and phytotoxicity effect of cadmium in soil by microbial-induced carbonate precipitation using metabolites of ureolytic bacterium Ochrobactrum sp. POC9},
author = {Marta Zakrzewska and Grzegorz Rzepa and Marcin Musialowski and Aleksandra Goszcz and Robert Stasiuk and Klaudia Debiec-Andrzejewska},
doi = {10.3389/fpls.2023.1109467},
issn = {1664-462X},
year = {2023},
date = {2023-06-21},
journal = {Front. Plant Sci.},
volume = {14},
publisher = {Frontiers Media SA},
abstract = {The application of ureolytic bacteria for bioremediation of soil contaminated with heavy metals, including cadmium (Cd), allows for the efficient immobilization of heavy metals by precipitation or coprecipitation with carbonates. Microbially-induced carbonate precipitation process may be useful also in the case of the cultivation of crop plants in various agricultural soils with trace but legally permissible Cd concentrations, which may be still uptaken by plants. This study aimed to investigate the influence of soil supplementation with metabolites containing carbonates (MCC) produced by the ureolytic bacterium Ochrobactrum sp. POC9 on the Cd mobility in the soil as well as on the Cd uptake efficiency and general condition of crop plants (Petroselinum crispum) . In the frame of the conducted studies (i) carbonate productivity of the POC9 strain, (ii) the efficiency of Cd immobilization in soil supplemented with MCC, (iii) crystallization of cadmium carbonate in the soil enriched with MCC, (iv) the effect of MCC on the physico-chemical and microbiological properties of soil, and (v) the effect of changes in soil properties on the morphology, growth rate, and Cd-uptake efficiency of crop plants were investigated. The experiments were conducted in soil contaminated with a low concentration of Cd to simulate the natural environmental conditions. Soil supplementation with MCC significantly reduced the bioavailability of Cd in soil with regard to control variants by about 27-65% (depending on the volume of MCC) and reduced the Cd uptake by plants by about 86% and 74% in shoots and roots, respectively. Furthermore, due to the decrease in soil toxicity and improvement of soil nutrition with other metabolites produced during the urea degradation (MCC), some microbiological properties of soil (quantity and activity of soil microorganisms), as well as the general condition of plants, were also significantly improved. Soil supplementation with MCC enabled efficient Cd stabilization and significantly reduced its toxicity for soil microbiota and plants. Thus, MCC produced by POC9 strain may be used not only as an effective Cd immobilizer in soil but also as a microbe and plant stimulators. },
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Musiałowski, Marcin; Dębiec-Andrzejewska, Klaudia
Microbial Siderophores in Sustainable Applications—Preventing and Mitigating Effects of Climate Change Book Chapter
In: Bioinoculants: Biological Option for Mitigating global Climate Change, pp. 297–317, Springer Nature Singapore, 2023, ISBN: 9789819929733.
@inbook{Musiałowski2023b,
title = {Microbial Siderophores in Sustainable Applications—Preventing and Mitigating Effects of Climate Change},
author = {Marcin Musiałowski and Klaudia Dębiec-Andrzejewska},
doi = {10.1007/978-981-99-2973-3_14},
isbn = {9789819929733},
year = {2023},
date = {2023-00-00},
booktitle = {Bioinoculants: Biological Option for Mitigating global Climate Change},
pages = {297--317},
publisher = {Springer Nature Singapore},
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pubstate = {published},
tppubtype = {inbook}
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2022
Poria, Vikram; Dębiec-Andrzejewska, Klaudia; Fiodor, Angelika; Lyzohub, Marharyta; Ajijah, Nur; Singh, Surender; Pranaw, Kumar
Plant Growth-Promoting Bacteria (PGPB) integrated phytotechnology: A sustainable approach for remediation of marginal lands Journal Article
In: Front. Plant Sci., vol. 13, 2022, ISSN: 1664-462X.
@article{Poria2022b,
title = {Plant Growth-Promoting Bacteria (PGPB) integrated phytotechnology: A sustainable approach for remediation of marginal lands},
author = {Vikram Poria and Klaudia Dębiec-Andrzejewska and Angelika Fiodor and Marharyta Lyzohub and Nur Ajijah and Surender Singh and Kumar Pranaw},
doi = {10.3389/fpls.2022.999866},
issn = {1664-462X},
year = {2022},
date = {2022-10-21},
journal = {Front. Plant Sci.},
volume = {13},
publisher = {Frontiers Media SA},
abstract = {Land that has little to no utility for agriculture or industry is considered marginal land. This kind of terrain is frequently found on the edge of deserts or other arid regions. The amount of land that can be used for agriculture continues to be constrained by increasing desertification, which is being caused by climate change and the deterioration of agriculturally marginal areas. Plants and associated microorganisms are used to remediate and enhance the soil quality of marginal land. They represent a low-cost and usually long-term solution for restoring soil fertility. Among various phytoremediation processes (viz., phytodegradation, phytoextraction, phytostabilization, phytovolatilization, phytofiltration, phytostimulation, and phytodesalination), the employment of a specific mechanism is determined by the state of the soil, the presence and concentration of contaminants, and the plant species involved. This review focuses on the key economically important plants used for phytoremediation, as well as the challenges to plant growth and phytoremediation capability with emphasis on the advantages and limits of plant growth in marginal land soil. Plant growth-promoting bacteria (PGPB) boost plant development and promote soil bioremediation by secreting a variety of metabolites and hormones, through nitrogen fixation, and by increasing other nutrients’ bioavailability through mineral solubilization. This review also emphasizes the role of PGPB under different abiotic stresses, including heavy-metal-contaminated land, high salinity environments, and organic contaminants. In our opinion, the improved soil fertility of marginal lands using PGPB with economically significant plants (e.g., Miscanthus ) in dual precession technology will result in the reclamation of general agriculture as well as the restoration of native vegetation. },
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Styczynski, Michal; Biegniewski, Gabriel; Decewicz, Przemyslaw; Rewerski, Bartosz; Debiec-Andrzejewska, Klaudia; Dziewit, Lukasz
Application of Psychrotolerant Antarctic Bacteria and Their Metabolites as Efficient Plant Growth Promoting Agents Journal Article
In: Front. Bioeng. Biotechnol., vol. 10, 2022, ISSN: 2296-4185.
@article{Styczynski2022,
title = {Application of Psychrotolerant Antarctic Bacteria and Their Metabolites as Efficient Plant Growth Promoting Agents},
author = {Michal Styczynski and Gabriel Biegniewski and Przemyslaw Decewicz and Bartosz Rewerski and Klaudia Debiec-Andrzejewska and Lukasz Dziewit},
doi = {10.3389/fbioe.2022.772891},
issn = {2296-4185},
year = {2022},
date = {2022-02-24},
journal = {Front. Bioeng. Biotechnol.},
volume = {10},
publisher = {Frontiers Media SA},
abstract = {Iron is the fourth most abundant element on earth. However, its low bioavailability is a key plant-growth limiting factor. Bacteria play an important role in plant growth promotion since they produce specific secondary metabolites that may increase macro- and micronutrient accessibility in soil. Therefore, bacterial-derived iron chelators, as well as surface-active compounds, are recognised as essential to plant welfare. In this study, three cold-active Antarctic bacterial strains, i.e. Pseudomonas sp. ANT_H12B, Psychrobacter sp. ANT_H59 and Bacillus sp. ANT_WA51, were analysed. The physiological and genomic characterisation of these strains revealed their potential for plant growth promotion, reflected in the production of various biomolecules, including biosurfactants (that may lower the medium surface tension of even up to 53%) and siderophores (including ANT_H12B-produced mixed-type siderophore that demonstrated the highest production, reaching the concentration of up to 1.065 mM), increasing the availability of nutrients in the environment and neutralising fungal pathogens. Tested bacteria demonstrated an ability to promote the growth of a model plant, alfalfa, increasing shoots’ length and fresh biomass even up to 26 and 46% respectively; while their metabolites increased the bioavailability of iron in soil up to 40%. It was also revealed that the introduced strains did not disrupt physicochemical conditions and indigenous soil microbial composition, which suggests that they are promising amendments preserving the natural biodiversity of soil and increasing its fertility. },
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