Intracellular uranium accumulation by Shewanella sp. HN-41 under the thiosulfate-reducing condition

2014 ◽  
Vol 57 (1) ◽  
pp. 117-121 ◽  
Author(s):  
Ji-Hoon Lee ◽  
Hor-Gil Hur
Keyword(s):  
Uranium Accumulation ◽  
Reducing Condition

Purification and Characterization of Lupus Anticoagulant Like Protein from Agkistrodon Halys Brevicaudus Venom

1996 ◽  
Vol 76 (06) ◽  
pp. 0993-0997
Author(s):  
Zhao-Yan Li ◽  
Xiao-Wei Wu ◽  
Tie-Fu Yu ◽  
Eric C-Y Lian
Keyword(s):  
Amino Acid ◽  
Lupus Anticoagulant ◽  
Inhibitory Effect ◽  
Clotting Factor ◽  
Acid Oxidase ◽  
Crude Venom ◽  
Amino Acid Oxidase ◽  
Sds Page ◽  
The Individual ◽  
Reducing Condition

SummaryBy means of CM-Sephadex C-25, DEAE-Sephadex A-50, Sephadex G-200, and Sephadex G-75 chromatographies, a lupus anticoagulant like protein (LALP) from Agkistrodon halys brevicaudus was purified. On SDS-PAGE, the purified LALP had a molecular weight of 25,500 daltons under non-reducing condition and 15,000 daltons under reducing condition. The isoelectric point was pH 5.6. Its N terminal amino acid sequencing revealed a mixture of 2 sequences: DCP(P/S)(D/G)WSSYEGH(C/R)Q(Q/K). It was devoid of phospho-lipaseA, fibrino(geno)lytic, 5′-nucleotidase, L-amino acid oxidase, phosphomonoesterase, phosphodiesterase and thrombin-like activities, which were found in crude venom. In the presence of LALP, PT, aPTT, and dRVVT of human plasma were markedly prolonged and its effects were concentration-dependent but time-independent. The inhibitory effect of LALP on the plasma clotting time was enhanced by decreasing phospholipid concentration in TTI test. The individual clotting factor activity was not affected by LALP when higher dilutions of LALP-plasma mixture were used for assay. Russell’s viper venom time was shortened when high phospholipid confirmatory reagent was used. Therefore, the protein has lupus anticoagulant property.

scholarly journals Uranium accumulation and toxicokinetics in the crustacean Daphnia magna provide perspective to toxicodynamic responses

2021 ◽  
pp. 105836
Author(s):  
Shane Scheibener ◽  
You Song ◽  
Knut Erik Tollefsen ◽  
Brit Salbu ◽  
Hans-Christian Teien
Keyword(s):  
Daphnia Magna ◽  
Uranium Accumulation

Distribution of uranium series radionuclides in upland vegetation of northern Saskatchewan. I. Plant and soil concentrations

1986 ◽  
Vol 64 (11) ◽  
pp. 2446-2452 ◽  
Author(s):  
J. W. Sheard
Keyword(s):  
Plant Species ◽  
Primary Source ◽  
The Other ◽  
Moss Species ◽  
Uranium Series ◽  
Significant Difference ◽  
Northern Saskatchewan ◽  
Uranium Accumulation ◽  
Lead 210

Levels of lead-210, polonium-210, radium-226, and uranium are reported for 10 plant species (2 conifer, 4 shrub, 3 lichen, and 1 moss species) and soils in northern Saskatchewan. Two localities were studied in each of two regions, one uraniferous, the other not. Nonvascular species showed the highest levels of lead-210, polonium-210, and uranium, and the shrubs, the highest levels of radium-226. The lichen and moss species show no significant difference in accumulation of lead-210 and polonium-210 among regions, reflecting the assumed atmospheric distribution and particulate accumulation of these radionuclides. Seven of eight species for which comparisons could be made showed significant differences in uranium accumulation among regions. High levels in the lichen and moss species suggest that the primary source of uranium in these species is not directly from the soil. In contrast to the other radionuclides, radium-226 only showed significant differences among localities within regions, this being due to high accumulations occurring at one locality in the nonuraniferous region.

The Use of Edible Plants for Rhizofiltration under Different Hydroponic Conditions

2021 ◽  
Author(s):  
juyeon Lee ◽  
minjune Yang
Keyword(s):  
Raphanus Sativus ◽  
Brassica Campestris ◽  
Solid Phase ◽  
Root Surface ◽  
Edible Plants ◽  
Groundwater Samples ◽  
Ph Conditions ◽  
Uranium Accumulation ◽  
High Concentrations ◽  
Hydroponic Conditions

<p>This study conducted a rhizofiltration experiment for uranium-removal with the edible plants (<em>Lactuca sativa, Brassica campestris </em>L., <em>Raphanus sativus </em>L., and <em>Oenanthe javanica</em>) which generally consumed in South Korea. Various batch experiments were performed with different initial uranium concentrations, pH conditions, and genuine groundwater. The results showed the uranium accumulation and bioconcentration factor (BCF) of plant roots increase with an increase in initial uranium concentrations in the solution. Of the four plants, the amount of uranium accumulated in <em>Raphanus sativus </em>L. roots was 1215.8 μg/g DW with the maximum BCF value of 2692.7. The BCF value based on various pH conditions (pHs 3, 5, 7 and 9) of artificial solutions was highest at pH 3 for all four plants, and the BCF value of <em>Brassica campestris </em>L. was the maximum of 11580.3 at pH 3. As a result of rhizofiltration experiments with genuine groundwater contaminated with uranium, the BCF values of <em>Raphanus sativus </em>L. were 1684.7 and 1700.1, the highest among the four species, in Oesam-dong and Bugokdong groundwater samples with uranium concentration of 83 and 173 μg/L. From SEM/EDS analysis, it was confirmed that uranium in contaminated groundwater was adsorbed as a solid phase on the root surface. These results demonstrate that <em>Raphanus sativus </em>L. not only has a high tolerance to high concentrations of uranium and low pH conditions but also has a remarkable potential for uranium accumulation capacity.</p>

scholarly journals Origin and stability of uranium accumulation-layers in an Alpine histosol

2020 ◽  
Vol 727 ◽  
pp. 138368
Author(s):  
Jasquelin Peña ◽  
Marietta Straub ◽  
Virginie Flury ◽  
Eymerick Loup ◽  
José Corcho ◽  
...  
Keyword(s):  
Uranium Accumulation

scholarly journals Isotopic Fingerprint of Uranium Accumulation and Redox Cycling in Floodplains of the Upper Colorado River Basin

2019 ◽  
Vol 53 (7) ◽  
pp. 3399-3409 ◽  
Author(s):  
Pierre Lefebvre ◽  
Vincent Noël ◽  
Kimberly V. Lau ◽  
Noah E. Jemison ◽  
Karrie L. Weaver ◽  
...  
Keyword(s):  
River Basin ◽  
Colorado River ◽  
Redox Cycling ◽  
Colorado River Basin ◽  
Upper Colorado River Basin ◽  
Uranium Accumulation

Corrosion of carbon steel in compacted bentonite and its effect on neptunium diffusion under reducing condition

2005 ◽  
Vol 28 (1-4) ◽  
pp. 89-100 ◽  
Author(s):  
X. Xia ◽  
K. Idemitsu ◽  
T. Arima ◽  
Y. Inagaki ◽  
T. Ishidera ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Compacted Bentonite ◽  
Reducing Condition
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