Abstract
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 IC50 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 > Se > Cd > Zn >> 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 > Zn > Se > Pb > Cu.
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Claims 4
Claim · model-written summary
Metals inhibited root elongation of S. alba seedlings, ranked Cu > Se > Cd > Zn >> Pb by IC50.
- Taxon
- Sinapis alba
Sinapis albae0 - Treatment
- Cd, Cu, Pb, Se and Zne1
- Outcome
- root elongatione2
- Direction
- rank order of inhibitione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mustard seedlings (Sinapis alba L.) were used as a model subject for the tests”
e1“The chronic ecotoxicological effects of Cd, Cu, Pb, Se and Zn were determined within this study”
e2“On the basis of IC50 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 > Se > Cd > Zn >> Pb”
Claim · model-written summary
Selenium showed the lowest inhibitory effect on photosynthetic pigment production in S. alba.
- Taxon
- Sinapis albaSinapis albae0
- Treatment
- See3
- Outcome
- photosynthetic pigments productione3
- Direction
- lowest inhibitory effecte3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mustard seedlings (Sinapis alba L.) were used as a model subject for the tests”
e3“When the photosynthetic pigments production was determined, Se demonstrated the lowest inhibitory effect on all pigment types and Pb did the highest”
Claim · model-written summary
Lead showed the highest inhibitory effect on photosynthetic pigment production in S. alba.
- Taxon
- Sinapis albaSinapis albae0
- Treatment
- Pbe3
- Outcome
- photosynthetic pigments productione3
- Direction
- did the higheste3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mustard seedlings (Sinapis alba L.) were used as a model subject for the tests”
e3“When the photosynthetic pigments production was determined, Se demonstrated the lowest inhibitory effect on all pigment types and Pb did the highest”
Claim · model-written summary
Metal accumulation in roots and cotyledons from hydroponic solution decreased in the order Cd > Zn > Se > Pb > Cu.
- Taxon
- Sinapis albaSinapis albae0
- Organ / stage
- roots and cotyledonse4
- Treatment
- hydroponic solutione4
- Outcome
- accumulated amount of metalse4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mustard seedlings (Sinapis alba L.) were used as a model subject for the tests”
e4“The accumulated amount of metals from hydroponic solution into the roots and cotyledons decreased in the order Cd > Zn > Se > Pb > Cu”
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.