Abstract
Salt stress severely affects plant growth and regulation; however knowledge about its effect on cytological changes is limited. In this report, studies were carried out to reveal the morphological and cytogenetic responses of the Allium cepa roots after prolonged (7, 14, 20 days) exposure to salt stress in tissue culture conditions. Roots of plants were treated with different concentrations (100, 200, 300 mM) of NaCl and KCl added to the culture medium. Both salts caused root growth reduction and showed cytotoxic effect reflected in reduction of root tip cells mitotic activity and increase of different abnormalities such as chromosome breaks and bridges and formation of micronuclei. This experiment showed differences of the action of excessive amounts of both tested salts at the cellular level, as KCl induced higher frequencies of abnormalities during cell divisions, whereas NaCl showed more mitodepressive effect and more frequently led to the root meristem cell death.
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Claims 6
Claim · model-written summary
Both NaCl and KCl reduced root growth of Allium cepa in tissue culture.
- Taxon
- Allium cepa
Allium cepae0 - Treatment
- NaCl and KCle1
- Outcome
- root growthe2
- Direction
- reductione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the morphological and cytogenetic responses of the Allium cepa roots after prolonged (7, 14, 20 days) exposure to salt stress in tissue culture conditions”
e1“Roots of plants were treated with different concentrations (100, 200, 300 mM) of NaCl and KCl added to the culture medium”
e2“Both salts caused root growth reduction”
Claim · model-written summary
Both salts reduced mitotic activity of root tip cells in Allium cepa.
- Taxon
- Allium cepaAllium cepae0
- Treatment
- NaCl and KCle1
- Outcome
- root tip cells mitotic activitye2
- Direction
- reductione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the morphological and cytogenetic responses of the Allium cepa roots after prolonged (7, 14, 20 days) exposure to salt stress in tissue culture conditions”
e1“Roots of plants were treated with different concentrations (100, 200, 300 mM) of NaCl and KCl added to the culture medium”
e2“reduction of root tip cells mitotic activity”
Claim · model-written summary
Both salts increased abnormalities such as chromosome breaks, bridges and micronuclei in Allium cepa root cells.
- Taxon
- Allium cepaAllium cepae0
- Treatment
- NaCl and KCle1
- Outcome
- different abnormalities such as chromosome breaks and bridges and formation of micronucleie2
- Direction
- increasee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the morphological and cytogenetic responses of the Allium cepa roots after prolonged (7, 14, 20 days) exposure to salt stress in tissue culture conditions”
e1“Roots of plants were treated with different concentrations (100, 200, 300 mM) of NaCl and KCl added to the culture medium”
e2“increase of different abnormalities such as chromosome breaks and bridges and formation of micronuclei”
Claim · model-written summary
KCl induced higher frequencies of abnormalities during cell division in Allium cepa roots than NaCl.
- Taxon
- Allium cepaAllium cepae0
- Treatment
- KCle2
- Outcome
- frequencies of abnormalities during cell divisionse2
- Direction
- highere2
- Comparator
- NaCle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the morphological and cytogenetic responses of the Allium cepa roots after prolonged (7, 14, 20 days) exposure to salt stress in tissue culture conditions”
e2“KCl induced higher frequencies of abnormalities during cell divisions, whereas NaCl showed more mitodepressive effect and more frequently led to the root meristem cell death”
Claim · model-written summary
NaCl showed a more mitodepressive effect in Allium cepa roots than KCl.
- Taxon
- Allium cepaAllium cepae0
- Treatment
- NaCle2
- Outcome
- mitodepressive effecte2
- Direction
- moree2
- Comparator
- KCle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the morphological and cytogenetic responses of the Allium cepa roots after prolonged (7, 14, 20 days) exposure to salt stress in tissue culture conditions”
e2“KCl induced higher frequencies of abnormalities during cell divisions, whereas NaCl showed more mitodepressive effect and more frequently led to the root meristem cell death”
Claim · model-written summary
NaCl more frequently led to root meristem cell death in Allium cepa than KCl.
- Taxon
- Allium cepaAllium cepae0
- Treatment
- NaCle2
- Outcome
- root meristem cell deathe2
- Direction
- more frequentlye2
- Comparator
- KCle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the morphological and cytogenetic responses of the Allium cepa roots after prolonged (7, 14, 20 days) exposure to salt stress in tissue culture conditions”
e2“KCl induced higher frequencies of abnormalities during cell divisions, whereas NaCl showed more mitodepressive effect and more frequently led to the root meristem cell death”
The same questions in other papers
potassium chloride · growth · Allium cepa (onion)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →potassium chloride · cytology · Allium cepa (onion)Results agree
1 paper in the same direction as this paper
- 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.