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  1. 4 Acta Physiologiae Plantarum
  2. 2 Biological Bulletin of Poznań. Supplement
  3. 2 Physicochemical Problems of Mineral Processing
  4. 2 Polish Journal of Environmental Studies
  5. 1 Acta Biologica Cracoviensia. Series Botanica. Supplement
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  1. 1 2021
  2. 1 2019
  3. 2 2016
  4. 1 2015
  5. 1 2010
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  1. 3 Tomaszewska B.
  2. 2 Garnczarska M.
  3. 2 Gwozdz E. A.
  4. 2 Malecka A.
  5. 2 Piechalak A.
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1
Content available In vitro cultures of Populus × canescens inoculated with various strains of ectomycorrhizal Paxillus involutus fungi under lead ion stress
100%
Szuba A. , Karlinski L. , Hazubska-Przybyl T. , Mucha J.
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
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2015
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tom 96
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nr 1
2
Content available Adsorption of lead ion on the hydrated rutile (110) surface: a DFT calculation study
100%
Zou H. , Cao Q. , Chen X. , Liu D.
Physicochemical Problems of Mineral Processing
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2019
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tom Vol. 55, iss. 4
951--959
EN
The adsorption behavior of lead species on the hydrated rutile surface was investigated with inductively coupled plasma mass spectrometry (ICP-MS) measurements and density functional theory (DFT) calculations. ICP-MS experiments suggested that lead species can be readily absorbed by the rutile powder in water at pH 6.5. From the ICP-MS results and the species distribution of Pb2+, it was concluded that Pb2+ was the major lead species adsorbing at the rutile/water interface at the pH of 6.5. DFT calculation results indicated that Pb2+ could adsorb at four different sites on the surface. At each site, water molecules or OH groups were involved in the reaction with Pb2+. The water molecules/OH groups on the rutile surface play an important role during the adsorption of Pb2+ on the hydrated rutile surface.
3
Content available Beneficial effects and mechanism of lead ion on wolframite flotation
100%
Yang S. , Qiu X. , Peng T. , Chang Z. , Feng Q. , Zhong C.
Physicochemical Problems of Mineral Processing
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2016
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tom Vol. 52, iss. 2
855--873
EN
In this study the effects and mechanism of lead ions influence on wolframite flotation with benzohydroxamic acid (BHA) were studied through micro-flotation, adsorption experiments, zeta potential measurements, logarithmic concentration diagram, and X-ray photoelectron spectroscopy. It was observed that lead ions could significantly enhance the recovery of wolframite in flotation and adsorption density of collector BHA onto the wolframite surface. The results showed that Pb existed in the forms of lead ion, monohydric lead, and lead hydroxide at the water-wolframite interface respectively, at three pH ranges. They increased the zeta potential of wolframite. However, the zeta potential of wolframite was still negative, resulting in repulsive electrostatic force to anionic collector BHA. Combining with XPS spectra, it revealed the chemisorption of BHA onto the wolframite surface. In addition, PbO or Pb(OH)2 was observed on the wolframite surface due to the reaction between lead ions and wolframite. These reaction products increased the adsorption site of BHA on the wolframite surface because Pb-hydroxamate was found on the wolframite surface.
4
Content available Removal of Heavy Metal by Ion Exchange Using Bentonite Clay
86%
Hussain S. T. , Ali S. A. K.
Journal of Ecological Engineering
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2021
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tom Vol. 22, nr 1
104--111
EN
Bentonite clay was utilized in this research as adsorbent element to remove the lead and copper ions from wastewater. Series of tests were performed at multiple parameters, such as pH solution, initial concentration of lead and copper ions, adsorbent mass, and contact time. The greatest removal was attained at pH 5, adsorbent weight of 0.5 g, initial heavy metal concentration of 10 mg/l, and a contact time of 60 minutes. The results revealed that bentonite clay is suitable in the removal of metal ions from polluted water. The ion exchange rate of lead was faster than that of copper. The isotherm for the adsorption of the lead and copper ions on bentonite clay was confirmed by the Freundlich and Langmuir isotherms which offered good consequences. The results indicated that bentonite was utilized as an efficient ion exchange element for the removal of heavy metal ions from polluted water. Fourier Transformed Infrared Spectrophotometer (FTIR) images of bentonite clay before and after adsorption showed the imbibition of metal ions by bentonite clay.
5
Effect of soil pollution on bacterial resistance to lead ions: an experimental approach
86%
Blaszak M. , Bienkowska D.
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tom 57
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nr 3
555-560
EN
The objective of the laboratory experiment was to study the resistance to lead ions of bacteria isolated from soil with various level of contamination with this element. Lead (II) acetate trihydrate was applied to the soil (sandy loam) in two doses so that the total content of lead corresponded to weak (250 mg kg⁻¹) and strong (5000 mg kg⁻¹) contamination of soil with lead. From each of the soil (control, weakly and strongly contaminated soil) bacterial isolates were obtained and several dozen of them were randomly chosen for the experiment. The isolates were severally point wise cultured in three repetitions onto microbiological medium contaminated with lead (1000 mg dm⁻³) and on the same control medium. The diameter of grown “twin” colonies in both cultures were compared. For each isolate separately the resistance index (RI) was described as a ratio of bacterial cultures diameter of the soil isolate cultured on the contaminated medium to the diameter of the same isolate cultured on the control medium. On the basis of the various RI results, the bacteria were divided into four resistance groups (RG) of approximate resistance index: I group, RI = 0 – entirely sensitive bacteria (no growth on the contaminated medium); II group 0
6
Influence of lead ions on surface growth and sporulation of selected strains of Beauveria bassiana entomopathogenic fungus
86%
Ropek D.
Chemia i Inżynieria Ekologiczna
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2004
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tom Vol. 11, nr 4-5
377--384
EN
The effect of lead ions on surface growth, spore germination ability and pathogenicity ef selected B. bassiana strains was investigated. The effect of lead ions on surface growth depended on selected strain and jon concentration in the medium. The surface growth of some strains was not affected by lead ions but they strongly inhibited germinating ability of these strains. Lead ions also negatively affected fungus pathogenicity. Strain 7567 originated from the Upper Altai in Russia occurred to be most resistant to negative effect of lead ions.
PL
Zbadano wpływ jonów ołowiu na wzrost powierzchni, zarodnikowanie i patogeniczność wybranych szczepów grzyba owadobójczego B. bassiana. Wzrost powierzchni grzybni B. bassiana zależał od badanego szczepu i stosowanego stężenia jonów ołowiu. Jony ołowiu nie wpłynęły na wzrost powierzchni grzybni niektórych szczepów, ale w istotny sposób ograniczyły zdolność do kiełkowania ich zarodników. Szczep 7567 pochodzący z Górnego Ałtaju w Rosji okazał się być najbardziej odpornym na negatywny wpływ jonów ołowiu.
7
Potentiometric lead [II] ions recognition by liquid membrane electrodes incorporating methoxy substituted arylenevinylene derivatives
86%
Zimkus A. , Crestscu I. , Grzybowska I. , Radecka H. , Geise H. J. , Dieltiens P. , Aleksandrzak K.
Polish Journal of Environmental Studies
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2003
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tom 12
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nr 6
EN
The potentiometric responses towards lead ions of liquid membrane electrodes containing arylen­evinylene derivatives are reported. The membranes respond to lead ions in the activity range 10-6 - 10-3 M and show good selectivity against common interfering mono- and doubly-charged cations. The new ligands demonstrate low affinity for protonation. 1 mol % (vs the ionphore) of potassium tetrakis(p- chlorophenyl)borate was used as a lipophilic anionic salt to improve the selectivity. The ligands selected for the present study allow estimating the influence of olefinic double bounds, the number of aromatic rings and the number and position of methoxy groups on recognition process of the lead ions.
8
The synthesis of phytochelatins in lupin roots treated with lead ions
86%
Tomaszewska B. , Tukendorf A. , Baralkiewicz D.
Biological Bulletin of Poznań. Supplement
|
1996
|
tom 33
9
Biosorption of lead, mercury, and cadmium ions by Aspergillus terreus immobilized in a natural matrix
72%
Sun Y. M. , Horng C.-Y. , Chang F.-L. , Cheng L.-C. , Tian W.-X.
Polish Journal of Microbiology
|
2010
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tom 59
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nr 1
37-44
EN
Our aim was to investigate the biosorption of Pb²⁺, Hg²⁺, Cd²⁺ from aqueous solution by Aspergillus terreus (both free and immobilized on loofa sponge discs). Our results show that the adsorption capacity of fungal biomass on loofa sponge (FBLS) is superior to free fungal biomass (FFB). The adsorption selectivity by FBLS was in the order Pb²⁺>Hg²⁺>Cd²⁺. The maximum metal ions adsorbed was 247.2,37.7, 23.8 mg/g FBLS for Pb²⁺, Hg²⁺ and Cd²⁺, respectively. Metal uptake by FBLS was affected by the pH of the metal solution, but independent of temperature (10-50°C). The Langmuir model was more suitable than the Freundlich model to describe the biosorption process of FBLS. The regenerated FBLS was found to be effective for repeated use for five cycles without significant loss in adsorption capacity. This research demonstrates that FBLS possesses excellent capacity for Pb²⁺ biosorption from aqueous solution and industrial wastewaters.
10
Content available Removing lead from Iranian industrial wastewater
72%
Salmani B. K. , Amoozegar M. A. , Babavalian H. , Tebyanian H. , Shakeri F.
International Letters of Natural Sciences
|
2016
|
tom 57
EN
Metals and chemicals have been increased in industrial processes which they contain a high level of toxic heavy metals and cause a lot of disadvantages for the environment and human health .Biosorption of Pb (П) ions has been studied from aqueous solutions in a batch system by using a bacterial strain isolated from petrochemical wastewaters. Strain 8-I was selected to study the impact of different factors on removal rate. According to morphological, physiological and biochemical characterizations of the strain and in comparison with other studies the strain was tentatively identified as Bacillus sp strain 8-I. The maximum Lead biosorption capacity of 8-I isolate was determined to be 41.58 % at pH 4.0 with 80 mg/l concentration in 48 hours equilibrium time. The comparison between the biosorption capacity of live (45.50 mg/g), heat inactivated (30.23 mg/g) and NaN3 pretreated biomass (26.86 mg/g) were indicated that the ability of live biomass for both of active and passive uptake of lead.
11
Lead in the cell wall thickenings of Funaria hygrometrica protonemata exposed to this metal - a microanalysis studies
72%
Krzeslowska M. , Lenartowska M. , Jozwiak K. , Samardakiewicz S. , Bilski H. , Wozny A.
Acta Physiologiae Plantarum
|
2007
|
tom 29
|
nr 1 Suppl.
12
Flavonoid metal complexes used as antitoxic agents against heavy metals contamination
72%
Roncea F. , Istudor V. , Bratu M. M. , Negreanu-Pirjol T.
Journal of Elementology
|
2005
|
tom 10
|
nr 4 Suppl.1
87
13
Gamma-glutamylcysteine synthetase [EC.6.3.2.2] - functions in Pisum sativum and Brassica napus plants under lead ion stress
72%
Malecka A. , Piechalak A. , Wasinkiewicz K. , Tomaszewska B. , Ciszewska L.
Polish Journal of Natural Sciences. Supplement
|
2003
|
tom 01
14
Lupin root responses to heavy metals
72%
Przymusinski R. , Rucinska R. , Gwozdz E. A.
Biological Bulletin of Poznań. Supplement
|
1996
|
tom 33
15
Antioxidative system in roots of plants stressed by lead ions
72%
Malecka A. , Piechalak A. , Tomaszewska B.
Biological Letters
|
2005
|
tom 42
|
nr 2 Spec.Vol.
16
Disorders of purine metabolism in human erythrocytes in the state of lead contamination
72%
Baranowska-Bosiacka I. , Hlynczak A. J. , Wiszniewska B. , Marchlewicz M.
Polish Journal of Environmental Studies
|
2004
|
tom 13
|
nr 5
EN
Although many countries now have programs to lower the levels of lead in the environment, human exposure to Pb remains of concern to public health officials worldwide. The mechanisms of lead toxicity are still not fully understood, but recent findings have recognized the significance of the lead-induced impairment of the cell energy metabolism. This review outlines recent hypotheses and evidence on the role of nucleotide purines in erythrocyte metabolism regulation. It also describes the resynthesis and decomposition of purine nucleotides in erythrocytes, lead distribution in blood and its influence on purine conversion pathways and both glycolytic and pentosophosphate pathway enzymes in erythrocytes.
17
Metabolic responses of Lemna minor to lead ions. I. Growth, chlorophyll level and activity of fermentative enzymes
72%
Garnczarska M. , Ratajczak L.
|
|
tom 22
|
nr 4
18
Metabolic responses of Lemna minor to lead ions. II. Induction of antioxidant enzymes in roots
72%
Garnczarska M. , Ratajczak L.
|
|
tom 22
|
nr 4
19
Organospecific responses of lupin seedlings to lead. I. Localization of lead ions and stress proteins
72%
Przymusinski R. , Banaszak A. , Gwozdz E. A.
Acta Physiologiae Plantarum
|
2001
|
tom 23
|
nr 1
20
Influence of zinc and lead ions on the course of embryogenesis of Ascaris suum [Nematoda]
72%
Bialowas K. , Zoltowska K. , Lopienska E.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2000
|
tom 42
|
nr 1
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