Abstract
Pretreatment of maize (Zea mays L.,Qing No.3 and Da Huang) seeds with CaCl_2 solution could increase survival rate of maize seedlings under chilling,heat,drought and salt stress.In contrast to this,pretreatment with the Ca~(2+)-chelator EGTA decreased survival rate of the seedlings under these stresses.The results demonstrated that the exogenous Ca~(2+) can improve maize seedlings multi-resistance mentioned above.In addition,Ca~(2+) treatment of the seeds enabled the seedlings to keep relatively higher activity of glutathione reductase (GR) than that of Ca~(2+)-deficient treatment (control).EGTA treatment of the seeds led to more less of GR activity in the seedlings under these stress.It is obvious that GR is involved in the Ca~(2+)-enhanced the mutli-resistance or the stress tolerances of the maize seedlings.
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Claims 5
Claim · model-written summary
Pretreatment of maize seeds with CaCl2 solution increased seedling survival rate under chilling, heat, drought and salt stress.
- Material
- Qing No.3 and Da Huange1
- Organ / stage
- seedse1
- Treatment
- CaCl_2 solutione1
- Outcome
- survival rate of maize seedlingse1
- Direction
- increasee1
- Qualifier
- chilling,heat,drought and salt stresse1
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Pretreatment of maize (Zea mays L.,Qing No.3 and Da Huang) seeds with CaCl_2 solution could increase survival rate of maize seedlings under chilling,heat,drought and salt stress”
Claim · model-written summary
EGTA seed pretreatment decreased seedling survival rate under the same stresses.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Pretreatment of maize (Zea mays L.,Qing No.3 and Da Huang) seeds with CaCl_2 solution could increase survival rate of maize seedlings under chilling,heat,drought and salt stress”
e2“pretreatment with the Ca~(2+)-chelator EGTA decreased survival rate of the seedlings under these stresses”
Claim · model-written summary
Ca2+ seed treatment kept seedling glutathione reductase activity relatively higher than in Ca2+-deficient controls.
- Treatment
- Ca~(2+) treatmente3
- Outcome
- activity of glutathione reductase (GR)e3
- Direction
- highere3
- Comparator
- Ca~(2+)-deficient treatment (control)e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Pretreatment of maize (Zea mays L.,Qing No.3 and Da Huang) seeds with CaCl_2 solution could increase survival rate of maize seedlings under chilling,heat,drought and salt stress”
e3“Ca~(2+) treatment of the seeds enabled the seedlings to keep relatively higher activity of glutathione reductase (GR) than that of Ca~(2+)-deficient treatment (control)”
Claim · model-written summary
EGTA seed treatment lowered glutathione reductase activity in seedlings under stress.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Pretreatment of maize (Zea mays L.,Qing No.3 and Da Huang) seeds with CaCl_2 solution could increase survival rate of maize seedlings under chilling,heat,drought and salt stress”
e4“EGTA treatment of the seeds led to more less of GR activity in the seedlings under these stress”
Claim · model-written summary
Glutathione reductase is involved in the calcium-enhanced multi-resistance and stress tolerance of maize seedlings.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“GR is involved in the Ca~(2+)-enhanced the mutli-resistance or the stress tolerances of the maize seedlings”
The same questions in other papers
calcium atom · physiology: antioxidant enzymes · Zea mays (maize)Positive and negative results
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See all 9 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.