Abstract
The effects of calcium and spermidine on the growth, electrolyte leakage, ion contents and polyamine levels of maize ( Zea mays ) seedlings under NaCl stress were investigated. NaCl (100 and 200 mmol/L) treatments led to higher Na + and putrescine (Put) contents and severe plasmalemma injury and lower K +, Ca 2+ , spermidine (Spd) and spermine (Spm) levels in seedlings. Growth retardation and plasmalemma injury of maize seedlings by NaCl stress were alleviated by simultaneous addition of CaCl 2 and Spd and the disturbance in ionic balance and polyamine metabolism was reversed to some extent. Exogenous dicyclohexylamine (DCHA, an inhibitor of polyamine biosynthesis) accelerated the decrease in Spd and Spm levels caused by NaCl, which could be alleviated by the addition of Ca. These results show that there are possibly some relations between Ca, polyamine metabolism and growth of maize under salt stress.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher.
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
NaCl raised seedling sodium and putrescine levels.
- Taxon
- seedlingse0
- Treatment
- NaCl (100 and 200 mmol/L)e0
- Outcome
- Na + and putrescine (Put) contentse0
- Direction
- highere0
Not reportedComparator
Verbatim
e0“NaCl (100 and 200 mmol/L) treatments led to higher Na + and putrescine (Put) contents and severe plasmalemma injury and lower K +, Ca 2+ , spermidine (Spd) and spermine (Spm) levels in seedlings.”
Claim · model-written summary
NaCl severely injured seedling plasmalemma.
Not reportedComparator
Verbatim
e0“NaCl (100 and 200 mmol/L) treatments led to higher Na + and putrescine (Put) contents and severe plasmalemma injury and lower K +, Ca 2+ , spermidine (Spd) and spermine (Spm) levels in seedlings.”
Claim · model-written summary
NaCl lowered potassium, calcium, spermidine, and spermine levels in seedlings.
- Taxon
- seedlingse0
- Treatment
- NaCl (100 and 200 mmol/L)e0
- Outcome
- K +, Ca 2+ , spermidine (Spd) and spermine (Spm) levelse0
- Direction
- lowere0
Not reportedComparator
Verbatim
e0“NaCl (100 and 200 mmol/L) treatments led to higher Na + and putrescine (Put) contents and severe plasmalemma injury and lower K +, Ca 2+ , spermidine (Spd) and spermine (Spm) levels in seedlings.”
Claim · model-written summary
Adding CaCl 2 and Spd alleviated salt-induced growth retardation and plasmalemma injury.
- Treatment
- simultaneous addition of CaCl 2 and Spde0
- Outcome
- Growth retardation and plasmalemma injurye0
- Direction
- alleviatede0
- Comparator
- NaCl stresse0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth retardation and plasmalemma injury of maize seedlings by NaCl stress were alleviated by simultaneous addition of CaCl 2 and Spd and the disturbance in ionic balance and polyamine metabolism was reversed to some extent.”
t0“Maize Seedlings”
Claim · model-written summary
Adding CaCl 2 and Spd partly reversed salt-related ionic and polyamine disturbance.
- Treatment
- simultaneous addition of CaCl 2 and Spde0
- Outcome
- disturbance in ionic balance and polyamine metabolisme0
- Direction
- reversede0
- Qualifier
- to some extente0
- Comparator
- NaCl stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth retardation and plasmalemma injury of maize seedlings by NaCl stress were alleviated by simultaneous addition of CaCl 2 and Spd and the disturbance in ionic balance and polyamine metabolism was reversed to some extent.”
t0“Maize Seedlings”
Claim · model-written summary
DCHA accelerated the salt-induced fall in Spd and Spm levels; calcium alleviated it.
- Treatment
- Exogenous dicyclohexylaminee0
- Outcome
- Spd and Spm levelse0
- Direction
- accelerated the decreasee0
- Comparator
- NaCle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous dicyclohexylamine (DCHA, an inhibitor of polyamine biosynthesis) accelerated the decrease in Spd and Spm levels caused by NaCl, which could be alleviated by the addition of Ca.”
t0“Maize Seedlings”
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See all 15 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.