Abstract
Nickel (Ni) is utilized across multiple industries, resulting in significant environmental contamination and exhibiting various genotoxic effects on plants and animals due to its release into the external environment. This study evaluates the cytotoxic effects of different doses of nickel on onion (Allium cepa L.) root tips. To evaluate the sensitivity of Nickel, bulbs of onion were treated at 10, 25, 50 and 100 ppm along with a control (0 ppm) using NiCl2 salt as the source of Nickel. At elevated concentrations of nickel (100 ppm) in a hydroponic study, the onion roots exhibited browning and translucency, accompanied by a retardation of growth. Various chromosomal anomalies, including chromosomal breaks, laggards, vagrant chromosomes, bridges, distorted chromosomes, sticky chromosomes, c-mitosis etc. were observed following a 24 hr exposure to toxic doses of nickel. Both types of chromosomal abnormalities, namely spindle fibre abnormality (SFA) and chromosomal abnormality (CA), were observed under Ni treatment. The evaluation of cell death in the treated roots was done using the Evans blue dye test. Uptake of Evans blue by the root cells demonstrated the cell death parameter, which served as an indicator of cytotoxicity.
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Claims 6
Claim · model-written summary
At 100 ppm nickel, onion roots browned and became translucent.
- Taxon
- onion roots
Allium cepae0 - Organ / stage
- rootse0
- Treatment
- nickel (100 ppm)e0
- Outcome
- browning and translucencye0
- Setting
- hydroponic studye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At elevated concentrations of nickel (100 ppm) in a hydroponic study, the onion roots exhibited browning and translucency, accompanied by a retardation of growth.”
Claim · model-written summary
At 100 ppm nickel, onion root growth was retarded.
- Taxon
- onion rootsAllium cepae0
- Organ / stage
- rootse0
- Treatment
- nickel (100 ppm)e0
- Outcome
- growthe0
- Direction
- retardatione0
- Setting
- hydroponic studye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At elevated concentrations of nickel (100 ppm) in a hydroponic study, the onion roots exhibited browning and translucency, accompanied by a retardation of growth.”
Claim · model-written summary
After 24 hr exposure to toxic nickel doses, onion roots showed multiple chromosomal anomalies.
- Taxon
- onionAllium cepat0
- Treatment
- toxic doses of nickele0
- Outcome
- chromosomal anomaliese0
- Qualifier
- 24 hr exposuree0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Various chromosomal anomalies, including chromosomal breaks, laggards, vagrant chromosomes, bridges, distorted chromosomes, sticky chromosomes, c-mitosis etc. were observed following a 24 hr exposure to toxic doses of nickel.”
t0“onion”
Claim · model-written summary
Nickel treated onion roots showed spindle fibre abnormalities.
- Taxon
- onionAllium cepat0
- Treatment
- Ni treatmente0
- Outcome
- spindle fibre abnormality (SFA)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both types of chromosomal abnormalities, namely spindle fibre abnormality (SFA) and chromosomal abnormality (CA), were observed under Ni treatment.”
t0“onion”
Claim · model-written summary
Nickel treated onion roots showed chromosomal abnormalities.
- Taxon
- onionAllium cepat0
- Treatment
- Ni treatmente0
- Outcome
- chromosomal abnormality (CA)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both types of chromosomal abnormalities, namely spindle fibre abnormality (SFA) and chromosomal abnormality (CA), were observed under Ni treatment.”
t0“onion”
Claim · model-written summary
Evans blue uptake by onion root cells indicated cell death and cytotoxicity.
- Taxon
- onionAllium cepat0
- Organ / stage
- root cellse0
- Outcome
- cell death parametere0
- Qualifier
- indicator of cytotoxicitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Uptake of Evans blue by the root cells demonstrated the cell death parameter, which served as an indicator of cytotoxicity.”
t0“onion”
The same questions in other papers
nickel atom · disease · Allium cepa (onion)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
nickel atom · cytology · Allium cepa (onion)Results agree
1 paper in the same direction as this paper
- negative
nickel atom · growth · Allium cepa (onion)Results agree
2 papers in the same direction as this paper
- negative
- negative
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.