scholarly journals Toxicity comparison of some possible toxic metals (Cd, Cu, Pb, Se, Zn) on young seedlingsof Sinapis alba L.

2011 ◽  
Vol 50 (No. 1) ◽  
pp. 33-38 ◽  
Author(s):  
A. Fargašová
Keyword(s):  
Photosynthetic Pigments ◽  
Root Elongation ◽  
Metal Accumulation ◽  
Rank Order ◽  
Sinapis Alba ◽  
Inhibitory Effect ◽  
Root Growth Inhibition ◽  
Total Carotenoids ◽  
Sinapis Alba L ◽  
Model Subject

The chronic ecotoxicological effects of Cd, Cu, Pb, Se and Zn were determined within this study. Mustard seedlings (Sinapis alba L.) were used as a model subject for the tests. The phytotoxicity was determined through the root growth inhibition and photosynthetic pigments production (chlorophyll a, b, total carotenoids). The metal accumulation in the roots and cotyledons was also determined using the AAS methods. On the basis of IC<sub>50</sub> values and their 95% confidence intervals (CI) for the root elongation of S. alba seedlings, metals can be arranged in the rank order of inhibition as follows: Cu &gt; Se &gt; Cd &gt; Zn &gt;&gt; Pb. When the photosynthetic pigments production was determined, Se demonstrated the lowest inhibitory effect on all pigment types and Pb did the highest. The accumulated amount of metals from hydroponic solution into the roots and cotyledons decreased in the order Cd &gt; Zn &gt; Se &gt; Pb &gt; Cu.

scholarly journals Effect of Se-metal pair combinations (Cd, Zn, Cu, Pb) on photosynthetic pigmentsproduction and Metal accumulation in Sinapis alba L. seedlings

2011 ◽  
Vol 52 (No. 1) ◽  
pp. 8-15 ◽  
Author(s):  
A. Fargašová ◽  
J. Pastierová ◽  
K. Svetková
Keyword(s):  
Opposite Effect ◽  
Metal Accumulation ◽  
Sinapis Alba ◽  
Total Carotenoids ◽  
Plant Parts ◽  
Sinapis Alba L ◽  
Unfavourable Effect ◽  
Metal Pair ◽  
Aas Method ◽  
Model Subject

The priority of this study was to investigate how selenium influences toxicity of Cd, Zn, Cu and Pb when the metals appear in the hydroponic solution in pairs. As a model subject mustard seedlings (Sinapis alba L.) were used. Except phytotoxicity of individual metals and Se-metal combinations determined through photosynthetic pigments content (chlorophyll a, b, total carotenoids) also metal accumulation in the roots and shoots was determined by the AAS method. Se in all metal combinations reduced the unfavourable effect of other metals tested for chlorophylls content, however, for carotenoids primarily the opposite effect occurred. For metal accumulation in the roots and shoots it was confirmed that Se stimulated only Cd (about 24%) and slightly Cu (about 9%) accumulation in the roots, while in the shoots there was inhibited accumulation of all metals tested. The strongest inhibition was observed in Pb accumulation (84.9%). This fact indicates that Se generates some barriers for metal transfer from the roots to the underground plant parts. In contrast, Cu, Zn, Pb and Cd increased Se accumulation in the roots in the range of 4 (in combination with Cu) to 68% (in combination with Cd) and in the shoots in the range of 11 (in combination with Pb and Zn) to 44% (in combination with Cd). In the shoots only Cu inhibited Se accumulation (about 67%).

scholarly journals Phytotoxicity of Tires Evaluated in Simulated Conditions

Environments ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 49
Author(s):  
Markéta Šourková ◽  
Dana Adamcová ◽  
Jan Winkler ◽  
Magdalena Daria Vaverková
Keyword(s):  
Higher Plants ◽  
Sinapis Alba ◽  
Lepidium Sativum ◽  
Root Growth Inhibition ◽  
Chemical Parameters ◽  
Sinapis Alba L ◽  
Test Kit ◽  
Physical And Chemical ◽  
Aqueous Leachate ◽  
Lepidium Sativum L

Illegal dumps and landfills with disposed of tires are a fact of today, which should not be neglected as they represent a great ecological burden for the environment, affect the surrounding nature and disturb the landscape. This research was focused on testing the phytotoxicity of aqueous leachates from the fractions of tires in two sets of experiments—to simulate laboratory conditions (tire leaching in distilled water) and natural conditions (tire leaching in water from a recipient) using the Phytotoxkit testing kit (kit for the establishment of inhibition/stimulation effect on the root development) and the watercress test of phytotoxicity (biological method for the assessment of leachate phytotoxicity). Plants whose seeds were selected for the test were watercress (Lepidium sativum L.) and white mustard (Sinapis alba L.). The aqueous leachate was tested for 38 weeks. During the experiment, physical and chemical parameters were measured at intervals of 14 days by the testing instrument HACH TEST KIT: electric conductivity (EC), amount of dissolved oxygen (LDO) and pH. Results of root growth inhibition (IR) on the seeds of Lepidium sativum L. and Sinapis alba L. exhibited values ranging from 11.73% to 47.74% in the tested samples. Results of germination index (GI) on the seeds of Lepidium sativum L. exhibited values below 66% in the tested samples, which indicated the leachate phytotoxicity. In spite of the fact that similar studies are tackling the acute toxicity of leachates from tires (particularly to algae, embryos and animals), this research brings complementary information in testing the acute phytotoxicity of tire leachates to higher plants.

scholarly journals Effects of road traffic on photosynthetic pigments and heavy metal accumulation in tree species of Kumasi Metropolis, Ghana

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Ufere N. Uka ◽  
Ebenezer J. D. Belford ◽  
Florence A. Elebe
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Photosynthetic Pigments ◽  
Tree Species ◽  
Metal Accumulation ◽  
Mangifera Indica ◽  
Polluted Site ◽  
Vehicular Pollution ◽  
Terminalia Catappa ◽  
Polyalthia Longifolia

AbstractThis study was undertaken to examine changes in the content of pigments and accumulation of metals from vehicular pollution in selected species of roadside trees under vehicular pollution. A major arterial road with heavy vehicle emissions in the Kumasi Metropolis was designated as the polluted site, while Kwame Nkrumah University of Science and Technology Campus was designated as the control site. Four tree species (Terminalia catappa, Mangifera indica, Ficus platyphylla and Polyalthia longifolia) selected for the study were well distributed and abundant in the polluted and control sites. Photosynthetic pigments and levels of heavy metals (Pb, Cu, Cd and zinc) were assessed in their leaves. Chlorophyll and carotenoid contents were determined by absorption spectrometry, while the metal accumulation index (MAI) was used to determine the total metal accumulation capacity of the tree species. We observed a reduction in photosynthetic pigments in the leaf samples from the polluted site. Ficus platyphylla had the maximum reduction in total chlorophyll (49.34%), whereas Terminalia catappa recorded the lowest reduction (33.88%). Similarly, the largest decrease (31.58%) of carotenoid content was found in Terminalia catappa trees and the lowest in Polyalthia longifolia (16.67%). The Polyalthia longifolia, Ficus platyphylla and Terminalia catappa leaf samples collected at the polluted site recorded a higher ratio of chlorophyll a/b. Heavy metal (Cu, Pb, Zn and Cd) accumulation in leaf samples was higher in the polluted site than in the control, as expected. The highest metal MAI value was recorded in Mangifera indica (5.35) followed by Polyalthia longifolia with 4.30. The findings from this study specifically demonstrate that air contamination induced by vehicles decreases the level of photosynthetic pigments in trees subjected to roadside emissions. It is clear that both chlorophyll a/b and chlorophyll/carotenoid ratios will act as very useful stress-level markers. Elevated heavy metal levels in the tree species along arterial roadsides indicate that they serve as heavy metals sink. The change in MAI resulting from different pollution burden is an indication that the removal capabilities of the tree species differ from each other. We therefore suggest M. indica and P. longifolia as potential species to be used in air pollution reduction plans in the city.

scholarly journals Phytotoxic potential of cultivated and wild potato species (Solanum sp.): role of glycoalkaloids, phenolics and flavonoids in phytotoxicity against mustard (Sinapis alba L.)

2019 ◽  
Vol 41 (5) ◽  
Author(s):  
Dorota Sołtys-Kalina ◽  
Zofia Murawska ◽  
Danuta Strzelczyk-Żyta ◽  
Iwona Wasilewicz-Flis ◽  
Waldemar Marczewski
Keyword(s):  
Sinapis Alba ◽  
Wild Potato ◽  
Wild Potato Species ◽  
Potato Species ◽  
Sinapis Alba L

scholarly journals Characterization of five new low-molecular-mass trypsin inhibitors from white mustard (Sinapis alba L.) seed

2000 ◽  
Vol 267 (21) ◽  
pp. 6486-6492 ◽  
Author(s):  
Margherita Ruoppolo ◽  
Angela Amoresano ◽  
Piero Pucci ◽  
Stefano Pascarella ◽  
Fabio Polticelli ◽  
...  
Keyword(s):  
Molecular Mass ◽  
Sinapis Alba ◽  
Trypsin Inhibitors ◽  
White Mustard ◽  
Sinapis Alba L
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