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Bulak, P.; Walkiewicz, A.; Brzezińska, M. |
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Title |
Plant growth regulators-assisted phytoextraction |
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Journal Article |
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Year |
2014 |
Publication |
Biologia Plantarum |
Abbreviated Journal |
Biol. Plant. |
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Volume |
58 |
Issue |
1 |
Pages |
1-8 |
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Keywords |
auxins; cytokinins; gibberelins; heavy metals; phytoremediation; pollutants; Zea-mays l.; heavy-metals; Pteris-vittata; organic-acids; molecular-mechanisms; contaminated soils; Sedum-alfredii; lead uptake; hyperaccumulation; phytoremediation |
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Abstract |
Plant growth regulators (PRG)-assisted phytoremediation is a technique that could enhance the yield of heavy metal accumulation in plant tissues. So far, a small number of experiments have helped identify three groups of plant hormones that may be useful for this purpose: auxins, cytokinins, and gibberellins. Studies have shown that these hormones positively affect the degree of accumulation of metallic impurities and improve the growth and stress resistance of plants. This review summarizes the present knowledge about PGRs’ impact on phytoextraction yield. |
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English |
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0006-3134 |
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Review |
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CropM, ft_macsur |
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MA @ admin @ |
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4515 |
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Author |
Walkiewicz, A.; Brzezinska, M. |
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Title |
Methane oxidation in forest and fertilized soils |
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Conference Article |
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Year |
2013 |
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CropM |
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12th International Workshop for Young Scientists BioPhys Spring 2013. Lublin, Poland., 2013-05-21 to 2013-05-23 |
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no |
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Call Number |
MA @ admin @ |
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2891 |
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Author |
Walkiewicz, A.; Bulak, P.; Brzezinska, M.; Wnuk, E.; Bieganowski, A. |
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Title |
Methane oxidation in heavy metal contaminated Mollic Gleysol under oxic and hypoxic conditions |
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Journal Article |
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Year |
2016 |
Publication |
Environmental Pollution |
Abbreviated Journal |
Environ. Pollut. |
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Volume |
213 |
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Pages |
403-411 |
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Keywords |
Soil; Methane oxidation; CH4; Heavy metals; Oxygen status; Dehydrogenase; activity; methanotrophic bacteria; dehydrogenase-activity; potential activity; forest soils; responses; landfill; community; ch4; co2; bioremediation |
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Abstract |
Soils are the largest terrestrial sink for methane (CH4). However, heavy metals may exert toxicity to soil microorganisms, including methanotrophic bacteria. We tested the effect of lead (Pb), zinc (Zn) and nickel (Ni) on CH4 oxidation (1% v/v) and dehydrogenase activity, an index of the activity of the total soil microbial community in Mollic Gleysol soil in oxic and hypoxic conditions (oxia and hypoxia, 20% and 10% v/v O2, respectively). Metals were added in doses corresponding to the amounts permitted of Pb, Zn, Ni in agricultural soils (60, 120, 35 mg kg(-1), respectively), and half and double of these doses. Relatively low metal contents and O2 status reflect the conditions of most agricultural soils of temperate regions. Methane consumption showed high tolerance to heavy metals. The effect of O2 status was stronger than that of metals. CH4 consumption was enhanced under hypoxia, where both the start and the completion of the control and contaminated treatment were faster than under oxic conditions. Dehydrogenase activity, showed higher sensitivity to the contamination (except for low Ni dose), with a stronger effect of heavy metals, than that of the O2 status. |
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English |
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Newsletter July 2016 |
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0269-7491 |
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CropM, ft_macsur |
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MA @ admin @ |
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4771 |
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