Abstract
Heavy metals are genotoxic and carcinogenic in nature. Chromosomal plant assay is an important tool used for the evaluation of genome damaging property of pollutants above the optimum level. The paper presents the results of a study concerning the influence of different concentrations of Pb and Cd on cytological and chromosomal level in root tip cells of Vicia faba L. The results revealed the specific variations in chromosomal behavior of root tip cells of Vicia faba L. depending on the nature of metals and their concentrations used for the seed treatment. The experimental study assesses the percentage of total active mitotic index and chromosomal abnormalities in the root meristems of Vicia faba L. at control and different doses of heavy metals. It was observed that a lower mitotic index and a higher frequency of chromosomal aberrations were established at all the doses of heavy metals as compared to control ones. An inverse relationship between the active mitotic index and doses of heavy metals was scored. The chromosomal abnormalities comprising C-mitosis, scattering, stickiness, precocious movement, laggard, bridges etc. were frequent along with the increasing doses of heavy metals. The treatment has been carried out at four different concentrations (2ppm, 4ppm, 6ppm, 8ppm) of both the metal salts (PbCO3 and CdCl2) at room temperature for 3 hrs. The results proved that Pb has more genotoxic potentialities than Cd.
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Claims 7
Claim · model-written summary
Chromosomal behavior varied with metal identity and seed-treatment concentration.
- Taxon
- Vicia faba L.
Vicia fabae0 - Organ / stage
- root tip cellse0
- Treatment
- seed treatmente0
- Outcome
- chromosomal behaviore0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results revealed the specific variations in chromosomal behavior of root tip cells of Vicia faba L. depending on the nature of metals and their concentrations used for the seed treatment.”
Claim · model-written summary
All heavy-metal doses lowered the mitotic index relative to controls.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- all the doses of heavy metalse0
- Outcome
- mitotic indexe0
- Direction
- lowere0
- Comparator
- control onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was observed that a lower mitotic index and a higher frequency of chromosomal aberrations were established at all the doses of heavy metals as compared to control ones.”
t0“Vicia faba”
Claim · model-written summary
All heavy-metal doses increased chromosomal-aberration frequency relative to controls.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- all the doses of heavy metalse0
- Outcome
- frequency of chromosomal aberrationse0
- Direction
- highere0
- Comparator
- control onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was observed that a lower mitotic index and a higher frequency of chromosomal aberrations were established at all the doses of heavy metals as compared to control ones.”
t0“Vicia faba”
Claim · model-written summary
Active mitotic index was inversely related to heavy-metal dose.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- doses of heavy metalse0
- Outcome
- active mitotic indexe0
- Direction
- decreaseinferrede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An inverse relationship between the active mitotic index and doses of heavy metals was scored.”
t0“Vicia faba”
Claim · model-written summary
C-mitosis, scattering and stickiness were frequent as heavy-metal doses increased.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- doses of heavy metalse0
- Outcome
- C-mitosis, scattering, stickinesse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The chromosomal abnormalities comprising C-mitosis, scattering, stickiness, precocious movement, laggard, bridges etc. were frequent along with the increasing doses of heavy metals.”
t0“Vicia faba”
Claim · model-written summary
Precocious movement, laggard and bridges were frequent as heavy-metal doses increased.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- doses of heavy metalse0
- Outcome
- precocious movement, laggard, bridgese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The chromosomal abnormalities comprising C-mitosis, scattering, stickiness, precocious movement, laggard, bridges etc. were frequent along with the increasing doses of heavy metals.”
t0“Vicia faba”
Claim · model-written summary
Pb had greater genotoxic potential than Cd.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- Pbe0
- Outcome
- genotoxic potentialitiese0
- Direction
- moree0
- Comparator
- Cde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results proved that Pb has more genotoxic potentialities than Cd.”
t0“Vicia faba”
The same questions in other papers
lead atom · cytology · Vicia faba (faba bean)Results agree
3 papers in the same direction as this paper
- negative
- negative
- negative
heavy metal · cytology · Vicia faba (faba bean)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
2 papers more in this group
See all 6 papers →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.