Katarzyna Hrynkiewicz

Katarzyna Hrynkiewicz
Nicolaus Copernicus University | umk · Department of Microbiology

Professor

About

148
Publications
24,957
Reads
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2,211
Citations
Citations since 2016
57 Research Items
1688 Citations
20162017201820192020202120220100200300
20162017201820192020202120220100200300
20162017201820192020202120220100200300
20162017201820192020202120220100200300
Additional affiliations
October 2018 - November 2018
Nicolaus Copernicus University
Position
  • Professor (Full)
July 2002 - August 2004
University of Rostock
Position
  • PostDoc Position
January 2000 - July 2016
Nicolaus Copernicus University
Position
  • Professor (Associate)

Publications

Publications (148)
Article
Microorganisms degrade microplastics, but their potential is still not fully exploited, e.g., due to inadequate selection of microorganisms. We developed an effective selection method of microorganisms capable of polyethylene (PE) and polypropylene (PP) degradation and assessed the scale of polymer degradation by microbial populations. We isolated...
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Full-text available
Phosphorus (P) is an essential plant nutrient that can limit plant growth due to low availability in the soil. P-solubilizing bacteria in the roots and rhizosphere increase the P use efficiency of plants. This study addressed the impact of plant species, the level of plant association with bacteria (rhizosphere or root endophyte) and environmental...
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This study aimed to develop and characterize gelatin/polyvinyl alcohol (G/PVA) films loaded with black cumin cake extract (BCCE) and zinc oxide nanoparticles (ZnONPs). The BCCE was also applied for the green synthesis of ZnONPs with an average size of less than 100 nm. The active films were produced by a solvent-casting technique, and their physico...
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Soil salinity is one of the most important abiotic factors limiting plant productivity. The aim of this study was to determine the effect of selected halotolerant plant growth-promoting endophytes (PGPEs, Pseudomonas stutzeri ISE12 and Kushneria marisflavi CSE9) on the growth parameters of barley (Hordeum vulgare), lettuce (Lactuca sativa), and sun...
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Serratia plymuthica strain IV-11-34 belongs to the plant growth promoting bacteria (PGPR). In the sequenced genome of S. plymuthica IV-11-34, we have identified the genes involved in biodegradation and metabolisms of xenobiotics. The potential of S. plymuthica IV-11-34 for the degradation of biodegradable aliphatic polyester polylactide (PLA) and r...
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Fast-growing willows (Salix spp.) provide alternative sources of renewable energy generation, but need an adequate nutrient availability in the soil for high biomass production. In general, species mixtures can be more nutrient-efficient than pure cultures, but this is scarcely known for Salix spp. Therefore, this study evaluates the nutrient avail...
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Phosphorus (P) is an essential plant nutrient. Low availability of P in soil is mainly caused by high content of Fe 2 O 3 in the clay fraction that binds to P making it unavailable. Beneficial microbes, such as P solubilizing microorganisms can increase the available P in soil and improve plant growth and productivity. In this study, we evaluated t...
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The use of industrial waste as a material for the development of natural innovative and active packaging is economically and environmentally appealing. The aim of this study was to develop and characterize active gelatin films incorporating rapeseed oil industry waste. Water (RM-WE) and methanolic (RM-MWE) extracts of rapeseed meal (RM) were used a...
Article
Icelandic biocrusts are unique micro-ecosystems, considering their origin from volcanic material as a mineral base. However, little is known about their chemistry and diversity of microorganisms. Being phosphorus (P)-rich, Icelandic soils contribute to the global P cycling. Therefore, here, we focused on investigating P content, P pools, microbial...
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The increase of human population and associated increasing demand for agricultural products lead to soil over-exploitation. Biofertilizers based on lyophilized plant material containing living plant growth-promoting microorganisms (PGPM) could be an alternative to conventional fertilizers that fits into sustainable agricultural technologies ideas....
Article
The research objective of this study was to verify the effectiveness of selected rhizosphere strains in accelerating the biodegradation of plastics in cultivated soil. The study was a continuation of experiments conducted in compost soil. The experiments confirmed the ability of the two bacteria and fungi strains in biodegradation of polylactide (P...
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Increasing land salinization in recent decades has led to a decrease in crop productivity worldwide. We hypothesized that bioaugmentation of beetroot (Beta vulgaris) with halotolerant endophytic bacterial strains isolated from the obligatory halophytic plant Salicornia europaea L. may mitigate salt stress in new host plants. Therefore, we investiga...
Chapter
Many plants are unable to adapt to rapid environmental changes (e.g., salinity, drought, or limited nutrients) and may acquire assistance from microbes that have the capacity to increase tolerance of host-plants in stress conditions. By having the right microbes, the plants are more resilient! Such microbes include endophytes that inhabit inner tis...
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Under the field conditions crop plants interact with diverse microorganisms. These include beneficial (symbiotic) and phytopathogenic microorganisms, which jointly affect growth and productivity of the plants. In last decades, production of potato (Solanum tuberosum L.) suffers from increased incidence of potato virus Y (PVY), which is one of most...
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Microbially assisted phytoremediation is considered as the most promising eco-friendly solution for recultivation of heavy metal polluted soils. In vitro experiments can be favorable systems that allow assessing compatibility and efficiency of both partners (e.g. plant-microorganism) which reduces time and space in the initial stages of this techno...
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Aim Plant-endophytic associations exist only when equilibrium is maintained between both partners. This study analyses the properties of endophytic fungi inhabiting a halophyte growing in high soil salinity and tests whether these fungi are beneficial or detrimental when non-host plants are inoculated. Method Fungi were isolated from Salicornia eu...
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Background Salicornia europaea, a succulent obligatory halophyte is the most salt-tolerant plant species in the world. It survives salt concentrations of more than 1 M. Therefore, it is a suitable model plant to identify genes involved in salt tolerance mechanisms that can be used for the improvement of crops. The changes in a plant’s gene expressi...
Article
Aim: Study is focused on the influence of cadmium addition to growth media on production yield, their size and molecular mass of exopolysaccharides (EPS) synthesized by three rhizosphere bacteria strains. Inhibition of bacterial growth by increasing concentrations of Cd2+ was also analysed. Methods and results: The highest impact of Cd2+ was not...
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Despite the great interest in using halophyte Salicornia europaea L. as a crop in extreme saline habitats, little is known about the role played by associated endophytic bacteria in increasing tolerance of the host-plant to nutrient deficiency. Main objectives of this study were to investigate the community composition of diazotrophic endophytes of...
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We examined Salicornia europaea, a non-mycorrhizal halophyte associated with specific and unique endophytic bacteria and fungi. Microbial community structure was analyzed at two sites differing in salinization history (anthropogenic and naturally saline site), in contrasting seasons (spring and fall) and in two plant organs (shoots and roots) via 1...
Article
Soil salinisation is one of the major pervasive environmental hazards and abiotic stress factors limiting plant productivity worldwide. Since most of the known crops are susceptible to high salinity, there is great interest in improving technologies in agriculture and making major crop species more robust and productive under saline conditions. In...
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Solanaceae, comprising meaningful crops (as potato, tomato, pepper, eggplant, and tobacco), can benefit from a symbiosis with arbuscular mycorrhizal fungi (AMF), which improve plant fitness and support plant defense against pathogens. Currently, those crops are likely the most impacted by Potato virus Y (PVY). Unfortunately, the effects of AM symbi...
Article
Although biological soil crusts (BSCs) are known for a variety of ecological functions, the role of individual biocrust organism species in BSCs on their P cycling is almost unknown. To evaluate the hypothesis that the contribution of defined cultivable taxa of fungi and algea might influence the microbial P storage and mobilization in the underlyi...
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Seven Trichoderma viride strains were used for studying involved in the biodegradn. of polycaprolactone under lab. conditions. The fungi grew on the polymer and acceler- ated its biodegradn. T. viride 99 and T. viride 154 species were the most active ones.
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A constantly changing environment is challenging for all organisms on Earth, especially for terrestrial plants, which face several environmental stresses despite their static way of life. In attempts to understand the mechanisms responsible for plant growth and development, scientists have recently focused on a small group of carotenoid derivatives...
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The halophytes have evolved several strategies to survive in saline environments; however, an additional support from their associated microbiota helps combat adverse conditions. Hence, our driving interests to investigate the endophytic bacterial community richness, diversity, and composition associated to roots of Salicornia europaea from two tes...
Article
Phytoremediation is the bioremediation of contaminated soils and waters by using plants and their associated microorganisms. Phytoremediation of heavy metal (HM)-contaminated soils is based on immobilization of metals in rhizosphere soil and roots (phytostabilization) and on mobilization, uptake and transfer of metals into the aboveground plant org...
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Trees are crucial for sustaining life on our planet. Forests and land devoted to tree crops do not only supply essential edible products to humans and animals, but also additional goods such as paper or wood. They also prevent soil erosion, support microbial, animal, and plant biodiversity, play key roles in nutrient and water cycling processes, an...
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The roots of Salix spp. can be colonized by two types of mycorrhizal fungi (ectomycorrhizal and arbuscular) and furthermore by dark-septate endophytes. The fungal root colonization is affected by the plant genotype, soil properties and their interactions. However, the impact of host diversity accomplished by mixing different Salix genotypes within...
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The impact of increasing Cd²⁺ exposure on the quality and quantity of siderophores produced by a plant growth promoting Pseudomonas fulva strain was tested to gain insight into the degree of change. P. fulva was cultured in the increasing concentrations of Cd²⁺ (0, 0.5, 1.0, 2.0 mM). The secreted siderophores were separated by HPLC and characterize...
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Alnus glutinosa (black alder) is a mycorrhizal pioneer tree species with tolerance to high concentrations of salt in the soil and can therefore be considered to be an important tree for the regeneration of forests areas devastated by excessive salt. However, there is still a lack of information about the ectomycorrhizal fungi (EMF) associated with...
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Black alder (Alnus glutinosa Gaertn.) belongs to dual mycorrhizal trees, forming ectomycorrhizal (EM) and arbuscular (AM) root structures, as well as represents actinorrhizal plants that associate with nitrogen-fixing actinomycete Frankia sp. We hypothesized that the unique ternary structure of symbionts can influence community structure of other p...
Article
This work examines biodegradational changes in two types of polymer – biodegradable (polylactide, PLA) and conventional (polyethylene terephthalate, PET) – which have similar uses in industry. The main objective of this project was to select rhizosphere bacteria and fungi that were plant growth promoting microorganisms (PGPM) to accelerate the biod...
Article
Full-text available
Alnus glutinosa (black alder) is a mycorrhizal pioneer tree species with tolerance to high concentrations of salt in the soil and can therefore be considered to be an important tree for the regeneration of forests areas devastated by excessive salt. However, there is still a lack of information about the ectomycorrhizal fungi (EMF) associated with...
Article
Bioaugmentation of soils with selected microorganisms during phytoextraction can be the key solution, but the actual efficacy of this technology should be confirmed for different physicochemical soil parameters and heavy metal availability to guarantee the universality of this method. Equally important is development of the accurate prediction tool...
Article
The aim of this study was to determine the influence of selected halotolerant endophytic bacteria isolated from the roots of Salicornia europaea on the growth parameters of Beta vulgaris under different concentrations of salinity. Two endophytic strains were selected as inocula for the pot experiment: Pseudomonas sp. ISE-12 (B1) and Xanthomonadales...
Article
Full-text available
The test strains Bacteroidetes bacterium (Ba), Pseudomonas fluorescens (Pf) and Variovorax sp. (Va) were selected in advance for their in vitro capability for growth promotion of rapeseed in the presence of increased concentrations of Cd, Cu, Pb and Zn in the medium. In the pot experiment the strains were used for single Ba, Pf, Va or combined Ba+P...
Article
Three water-soluble ruthenium(III) compounds, Y[cis-RuCl2(pic)2]⋅nH2O (where pic = picolinate anion, Y = H(Hpic)2+ (1), H2pic+ (2) or K+ (3), n = 2, 1.5 and 2.5, respectively), were synthesized and their X-ray structures determined. Compound 1 was fully characterized both as solid and in aqueous solution by elemental analysis, magnetic susceptibili...
Article
The submitted work assumes that the abundance and diversity of endophytic and rhizosphere microorganisms co-existing with the halophytic plant Aster tripolium L. growing in a salty meadow in the vicinity of a soda factory (central Poland) represent unique populations of cultivable bacterial strains. Endophytic and rhizosphere bacteria were (i) isol...
Article
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The efficiency of phytoremediation might be highly affected by plant-associated microorganisms, and understanding of the underlying mechanisms is still a great challenge. The primary aim of this study was to evaluate the efficiency parameters for Cd2+ accumulation in the biomass of willow (Salix viminalis) as well as to define the biochemical respo...
Article
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The role and significance of plant growth promoting rhizobacteria (PGPR) in soil degradation due to salinization was discussed. Soil pollution, leading to the so-called salt stress, may be caused by excessive use of mineral fertilizers and plant protection products. The study demonstrated the potential of Bacillus sp. and Variovorax sp. to enhance...
Article
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Phytopathogenic fungi use a variety of strategies to infect hosts and have a diverse sensitivity to the natural defence mechanisms of the host plant, e.g. synthesis of phytoalexins. Many important pathogens of crops belong to the problematic genus Phoma, including species recently reallocated to Peyronellaea. The work presents: (1) molecular identi...
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Saline stress is one of the most important abiotic factors limiting the growth and development of plants and associated microorganisms. While the impact of salinity on associations of arbuscular fungi is rela-t i v e l y w e l l u n d e r s t o o d , k n o w l e d g e o f t h e ectomycorrhizal (EM) fungi of trees growing on saline land is limited....
Article
The chemical composition, molecular structure and physicochemical properties of five Gram-positive bacterial strain: Bacillus cereus, Bacillus subtilis, Sarcina lutea, Staphylococcus aureus, Micococcus luteus were investigated by Fourier transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS), NMR spectroscopy and intact cell matrix-assis...
Chapter
Fusarium wilts are important diseases for diverse agricultural and horticultural crop plants. They are caused by crop-specific pathogenic formae speciales of the soilborne fungus Fusarium oxysporum, which is a common species of soil fungi in a broad spectrum of soil properties. Organic amendments to the soil can significantly contribute to suppress...