Search results for: Mirosława Słaba

Items from 1 to 19 out of 19 results

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Ecotype Variation in Trace Element Content of Hard Tissues in the European Roe Deer (Capreolus capreolus)

Jan Demesko, Janusz Markowski, Eva Demesko, Mirosława Słaba, more

Archives of Environmental Contamination and Toxicology > 2019 > 76 > 1 > 76-86

Animals living in anthropogenic habitats bear a multitude of costs, which are directly or indirectly associated with human activities. Among others, an elevated exposure to environmental pollution can have negative consequences for wildlife populations. We examined the differences in the concentrations of trace elements between the field and forest ecotype of the European roe deer (Capreolus capreolus...

article

Potential of Trichoderma koningii to eliminate alachlor in the presence of copper ions

Justyna Nykiel-Szymańska, Przemysław Bernat, Mirosława Słaba

Ecotoxicology and Environmental Safety > 2018 > 162 > C > 1-9

The filamentous fungus Trichoderma koningii is capable of fast and effective eliminate alachlor (90% after 72 h when added separately and 80–60% in the presence of 1–5 mM of copper). After 168 h over 99% elimination of alachlor resulted in detoxification and was connected with the mitigation of reactive oxygen species (ROS) production. Using MS/MS techniques, seven dechlorinated and hydroxylated metabolites...

article

Trichoderma harzianum diminished oxidative stress caused by 2,4- dichlorophenoxyacetic acid (2,4-D) in wheat, with insights from lipidomics

Przemysław Bernat, Justyna Nykiel-Szymańska, Ewa Gajewska, Sylwia Różalska, more

Journal of Plant Physiology > 2018 > 229 > C > 158-163

2,4-dichlorophenoxyacetic acid (2,4-D) is among the most commonly used herbicides applied for weed control during wheat cultivation. However, its application could affect wheat growth. The present study investigates the effect of the ascomycetous fungus Trichoderma harzianum on lipid peroxidation, phospholipids, signaling lipids and phospholipase D in the seedlings of wheat (Triticum aestivum L.)...

article

Age-Related Patterns in Trace Element Content Vary Between Bone and Teeth of the European Roe Deer (Capreolus capreolus)

Jan Demesko, Janusz Markowski, Mirosława Słaba, Janusz Hejduk, more

Archives of Environmental Contamination and Toxicology > 2018 > 74 > 2 > 330-338

Game animals, such as the roe deer (Capreolus capreolus), have long been used as bioindicators of environmental contamination. Most ecotoxicological research on ungulates has focused on trace element content in soft tissues and antlers. Also, only fragmentary information exists about whether and how trace element concentrations vary with the age of wild-living animals and whether these age-related...

article

MS/MS analysis as a tool for oxidative stress biomarker identification and profiling

Rafał Szewczyk, Mirosława Słaba, Adrian Soboń, Przemysław Bernat, more

New Biotechnology > 2016 > 33 > S > S22

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Efficient alachlor degradation by the filamentous fungus Paecilomyces marquandii with simultaneous oxidative stress reduction

Mirosława Słaba, Sylwia Różalska, Przemysław Bernat, Rafał Szewczyk, more

Bioresource Technology > 2015 > 197 > C > 404-409

The acceleration of alachlor degradation by Paecilomyces marquandii under controlled and optimized conditions of fungal cultivation in liquid batches was observed (by ca. 20% in comparison to the flask cultures). Acidic environment and oxygen limitation resulted in deterioration of herbicide elimination. Efficient xenobiotic degradation did not correlate with free radicals formation, but some conditions...

article

Mechanism study of alachlor biodegradation by Paecilomyces marquandii with proteomic and metabolomic methods

Rafał Szewczyk, Adrian Soboń, Mirosława Słaba, Jerzy Długoński

Journal of Hazardous Materials > 2015 > 291 > Complete > 52-64

Alachlor is an herbicide that is widely used worldwide to protect plant crops against broadleaf weeds and annual grasses. However, due to its endocrine-disrupting activity, its application had been banned in the European Union. As described in our earlier work, Paecilomyces marquandii is a microscopic fungus capable of alachlor removal by N-acetyl oxidation. Our current work uses proteomics and metabolomics...

article

Tributyltin (TBT) induces oxidative stress and modifies lipid profile in the filamentous fungus Cunninghamella elegans

Przemysław Bernat, Ewa Gajewska, Rafał Szewczyk, Mirosława Słaba, more

Environmental Science and Pollution Research > 2014 > 21 > 6 > 4228-4235

To investigate the response of the tributyltin-degrading fungal strain Cunninghamella elegans to the organotin, a comparative lipidomics strategy was employed using an LC/MS-MS technique. A total of 49 lipid species were identified. Individual phospholipids were then quantified using a multiple reaction monitoring method. Tributyltin (TBT) caused a decline in the amounts of many molecular species...

article

Alachlor oxidation by the filamentous fungus Paecilomyces marquandii

Mirosława Słaba, Rafał Szewczyk, Milena Adela Piątek, Jerzy Długoński

Journal of Hazardous Materials > 2013 > 261 > Complete > 443-450

Alachlor, a popular chloroacetanilide herbicide, can be a potential health risk factor. Soil microorganisms are primarily responsible for conversion and migration of alachlor in natural environment, but knowledge concerning alachlor biodegradation is not complete. Therefore, we studied the ability of Paecilomyces marquandii, soil fungus tolerant to heavy metals, to eliminate alachlor and proposed...

article

Nickel-induced changes in carbon metabolism in wheat shoots

Ewa Gajewska, Ewa Niewiadomska, Krzysztof Tokarz, Mirosława Słaba, more

Journal of Plant Physiology > 2013 > 170 > 4 > 369-377

In this study, we analyzed the toxic effect of Ni during the development of wheat shoots. Typical developmental alterations in carbon metabolism-related parameters reflecting changes associated with the transition of the seedlings from heterotrophic to autotrophic metabolism were observed in the control shoots between the 1st and the 4th days. Adverse effects of 50 and 100μM Ni became evident starting...

article

Adaptive alterations in the fatty acids composition under induced oxidative stress in heavy metal-tolerant filamentous fungus Paecilomyces marquandii cultured in ascorbic acid presence

Mirosława Słaba, Ewa Gajewska, Przemysław Bernat, Magdalena Fornalska, more

Environmental Science and Pollution Research > 2013 > 20 > 5 > 3423-3434

The ability of the heavy metal-tolerant fungus Paecilomyces marquandii to modulate whole cells fatty acid composition and saturation in response to IC₅₀ of Cd, Pb, Zn, Ni, and Cu was studied. Cadmium and nickel caused the most significant growth reduction. In the mycelia cultured with all tested metals, with the exception of nickel, a rise in the fatty acid unsaturation was noted. The fungus exposure...

article

Comparative study of metal induced phospholipid modifications in the heavy metal tolerant filamentous fungus Paecilomyces marquandii and implications for the fungal membrane integrity

Mirosława Słaba, Przemysław Bernat, Sylwia Różalska, Justyna Nykiel, more

Acta Biochimica Polonica > 2013 > 60 > 4 > 695-700

In this work we compared the effect of five heavy metals: Zn, Pb, Cd, Ni and Cu on phospholipid composition of the ubiquitous soil fungus Paecilomyces marquandii, originating from a strongly metal polluted area and characterized by high tolerance to these elements. Cd, Ni and Cu caused an increase in phosphatidylcholine (PC). Only Pb decreased PC content, which was accompanied by a significant rise...

article

Efficient Zn2+ and Pb2+ uptake by filamentous fungus Paecilomyces marquandii with engagement of metal hydrocarbonates precipitation

Mirosława Słaba, Jerzy Długoński

International Biodeterioration & Biodegradation > 2011 > 65 > 7 > 954-960

Zinc and lead biosorption by living non-growing filamentous fungus Paecilomyces marquandii was examined for its potential application in heavy metals elimination from contaminated areas. Metal uptake by the studied fungus was pH dependent and reached the level of 308 mg of Zn ²⁺ g ⁻¹ and 505 mg of Pb ²⁺ g ⁻¹ at pH of 7.5 caused by microprecipitation in slightly alkaline...

article

Simultaneous toxic action of zinc and alachlor resulted in enhancement of zinc uptake by the filamentous fungus Paecilomyces marquandii

Mirosława Słaba, Rafał Szewczyk, Przemysław Bernat, Jerzy Długoński

Science of the Total Environment > 2009 > 407 > 13 > 4127-4133

Microbial ability vary when pollutants exist together in the environment in comparison to the presence of single toxic compound. The influence of alachlor and zinc on the growth of the filamentous fungus Paecilomyces marquandii and its ability to eliminate alachlor and zinc has been studied. Their simultaneous presence in the polluted environment is very probable. In liquid cultures the pesticide...

article

Action of Tributyltin (TBT) on the Lipid Content and Potassium Retention in the Organotins Degradating Fungus Cunninghamella elegans

Przemysław Bernat, Mirosława Słaba, Jerzy Długoński

Current Microbiology > 2009 > 59 > 3 > 315-320

The purpose of the presented paper was to study the effect of high concentrations of tributyltin (TBT) on the potassium retention and fatty acid (FA) composition of the fungus Cunninghamella elegans recognized as a very efficient TBT degrader. An increase in TBT had a strong influence on the potassium concentration in the fungus. In growth medium without TBT, the potassium content of the fungal cells...

article

Enhancement of emulsifier production by Curvularia lunata in cadmium, zinc and lead presence

Katarzyna Paraszkiewicz, Aleksandra Frycie, Mirosława Słaba, Jerzy Długoński

BioMetals > 2007 > 20 > 5 > 797-805

The influence of cadmium, zinc and lead on fungal emulsifier synthesis and on the growth of filamentous fungus Curvularia lunata has been studied. Tolerance to heavy metals established for C. lunata was additionally compared with the sensitivity exhibited by strains of Curvularia tuberculata and Paecilomyces marquandii—fungi which do not secrete compounds of emulsifying activity. Although C. lunata...

article

Kinetic study of the toxicity of zinc and lead ions to the heavy metals accumulating fungus Paecilomyces marquandii

Mirosława Słaba, Marcin Bizukojć, Bartłomiej Pałecz, Jerzy Długoński

Bioprocess and Biosystems Engineering > 2005 > 28 > 3 > 185-197

Studies have been carried out to determine the toxicity of zinc and lead ions to germinating spores and hyphal growth of heavy metal accumulating fungus Paecilomyces marquandii (former Verticillium marquandii). Inhibitive concentration (IC₅₀) of zinc and lead ions was assayed by three different methods: image analysis, nephelometric on-line measurement and microcalorimetry. A kinetic model of spore...

article

Zinc and lead uptake by mycelium and regenerating protoplasts of Verticillium marquandii

Mirosława Słaba, Jerzy Długoński

World Journal of Microbiology and Biotechnology > 2004 > 20 > 3 > 323-328

The ability of the filamentous fungus Verticillium marquandii for Zn²⁺ and Pb²⁺ uptake from aqueous solution was studied. The 24-h-old living mycelium bound Zn²⁺ and Pb²⁺ (206.2 and 324.5 mg/g dry weight, respectively) effectively, in contrast to a very low Zn²⁺ uptake by autoclaved mycelium (20.2 mg/g). The most effective results were noted when the metals were introduced as acetates and incubated...

article

Selective recovery of Zn2+ from waste slag from a metal-processing plant by the microscopic fungus Verticillium marquandii

Mirosława Słaba, Jerzy Długoński

Biotechnology Letters > 2000 > 22 > 21 > 1699-1704

The successful use of hay extract medium for growth of Verticillium marquandii in the presence of toxic black slag, resulted in selective and efficient Zn²⁺ recovery. An alkaline black waste slag originating from short rotary furnace, contained Zn²⁺ and Pb²⁺ (20% and 3.5%, respectively) in a form of compounds only slightly soluble in water. After 90 h of the culturing in bioreactor on hay extract...

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Archives of Environmental Contamination and Toxicology (2)
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Search results for: Mirosława Słaba

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