Abstract
Two maize(Zea mays L.)cultivars,Nongda 108(drought-tolerant) and Yedan 13(drought-sensitive) were selected to investigate the effects of seed soaking with spermidine on ATPase activity and conjugated-polyamine contents in mitochondria membrane of seedling roots under osmotic stress.The result showed that,in 7 days after polyethylene glycol(PEG)-6000 treatment,the ATPase activity decreased more in Yedan 13 than in Nongda 108,while the content of noncovalently conjugated-spermidine(Spd) increased more in Nongda 108 than in Yedan 13.Under osmotic stress,seed soaking with spermidine could obviously increase the noncovalently conjugated-Spd level and inhibit the decrease of ATPase activity in Yedan 13,so as to enhance its tolerance to stress.The results suggested that Spd seed-soaking could enhance the tolerance of maize seedlings to osmotic stress,especially for the drought-sensitive cultivar,by increasing the noncovalently conjugated-Spd level and maintaining the stability of ATPase activity in mitochondria membrane.
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Claims 5
Claim · model-written summary
After seven days of PEG treatment, ATPase activity fell more in Yedan 13 than Nongda 108.
- Material
- Yedan 13e0
- Treatment
- polyethylene glycol(PEG)-6000 treatmente0
- Outcome
- ATPase activitye0
- Direction
- decreased moree0
- Comparator
- Nongda 108e0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 7 days after polyethylene glycol(PEG)-6000 treatment,the ATPase activity decreased more in Yedan 13 than in Nongda 108”
t0“Maize”
Claim · model-written summary
After PEG treatment, noncovalently conjugated Spd rose more in Nongda 108 than Yedan 13.
- Material
- Nongda 108e0
- Treatment
- polyethylene glycol(PEG)-6000 treatmente0
- Outcome
- content of noncovalently conjugated-spermidine(Spd)e0
- Direction
- increased moree0
- Comparator
- Yedan 13e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 7 days after polyethylene glycol(PEG)-6000 treatment,the ATPase activity decreased more in Yedan 13 than in Nongda 108,while the content of noncovalently conjugated-spermidine(Spd) increased more in Nongda 108 than in Yedan 13”
t0“Maize Seedling Root under Osmotic Stress”
Claim · model-written summary
Under osmotic stress, spermidine seed soaking raised noncovalently conjugated Spd in Yedan 13.
- Material
- Yedan 13e0
- Treatment
- seed soaking with spermidinee0
- Outcome
- noncovalently conjugated-Spd levele0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under osmotic stress,seed soaking with spermidine could obviously increase the noncovalently conjugated-Spd level and inhibit the decrease of ATPase activity in Yedan 13”
t0“Maize”
Claim · model-written summary
Under osmotic stress, spermidine seed soaking inhibited the ATPase decline in Yedan 13.
- Material
- Yedan 13e0
- Treatment
- seed soaking with spermidinee0
- Outcome
- ATPase activitye0
- Direction
- inhibit the decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under osmotic stress,seed soaking with spermidine could obviously increase the noncovalently conjugated-Spd level and inhibit the decrease of ATPase activity in Yedan 13”
t0“Maize”
Claim · model-written summary
The authors infer spermidine soaking enhances maize osmotic-stress tolerance, especially in the drought-sensitive cultivar.
- Treatment
- Spd seed-soakinge0
- Outcome
- tolerance of maize seedlings to osmotic stresse0
- Direction
- enhancee0
- Qualifier
- especially for the drought-sensitive cultivare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spd seed-soaking could enhance the tolerance of maize seedlings to osmotic stress,especially for the drought-sensitive cultivar,by increasing the noncovalently conjugated-Spd level and maintaining the stability of ATPase activity in mitochondria membrane”
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