Abstract
Effects of Ca2+ on relative permeability of plasma membrane and the relative water content in leaves,activities of antioxidant enzymes and cell ultrastructure of H.middendorfii cv.Butter curls leaves under osmotic stress were analyzed.The results showed that under osmotic stress,the relative water content of leaves decreased significantly,while the decrease reduced after calcium treatment;the relative permeability of plasma membrane increased significantly under osmotic stress,but Ca2+ relieved the injury to plasma membrane;the activities of SOD,POD and CAT were raised under osmotic stress,but they were higher under calcium treatment than the osmotic stress treatment,calcium deficiency inhibited the activities of SOD and CAT,but no significant effect on POD activity.Ultrastructure observation showed that the chloroplast swelled and deformed,the osmotic stress changed the direction of stroma lamella arrangement,decreased the contents and crests of mitochondrion.The damage to chloroplast and mitochondrion was relieved by Ca2+ treatment.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
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 12
Claim · model-written summary
Osmotic stress significantly decreased the relative water content of leaves.
- Taxon
- Hemerocallis middendorfiit0
- Organ / stage
- leavese1
- Treatment
- osmotic stresse1
- Outcome
- relative water content of leavese1
- Direction
- decreasede1
Not reportedComparator
Verbatim
t0“Hemerocallis middendorfii under Osmotic Stress”
e1“under osmotic stress,the relative water content of leaves decreased significantly”
Claim · model-written summary
Calcium treatment reduced the decrease in relative water content of leaves under osmotic stress.
Verbatim
t0“Hemerocallis middendorfii under Osmotic Stress”
e1“under osmotic stress,the relative water content of leaves decreased significantly”
e2“while the decrease reduced after calcium treatment”
Claim · model-written summary
Osmotic stress significantly increased relative permeability of the plasma membrane.
- Taxon
- Hemerocallis middendorfiit0
- Treatment
- osmotic stresse2
- Outcome
- relative permeability of plasma membranee2
- Direction
- increasede2
Not reportedComparator
Verbatim
t0“Hemerocallis middendorfii under Osmotic Stress”
e2“the relative permeability of plasma membrane increased significantly under osmotic stress,but Ca2+ relieved the injury to plasma membrane”
Claim · model-written summary
Calcium relieved osmotic-stress injury to the plasma membrane.
Verbatim
t0“Hemerocallis middendorfii under Osmotic Stress”
e2“the relative permeability of plasma membrane increased significantly under osmotic stress,but Ca2+ relieved the injury to plasma membrane”
Claim · model-written summary
Osmotic stress raised the activities of SOD, POD and CAT.
- Taxon
- Hemerocallis middendorfiit0
- Treatment
- osmotic stresse3
- Outcome
- activities of SOD,POD and CATe3
- Direction
- raisede3
Not reportedComparator
Verbatim
t0“Hemerocallis middendorfii under Osmotic Stress”
e3“the activities of SOD,POD and CAT were raised under osmotic stress,but they were higher under calcium treatment than the osmotic stress treatment”
Claim · model-written summary
Calcium treatment gave higher SOD, POD and CAT activities than osmotic stress alone.
Verbatim
t0“Hemerocallis middendorfii under Osmotic Stress”
e3“the activities of SOD,POD and CAT were raised under osmotic stress,but they were higher under calcium treatment than the osmotic stress treatment”
Claim · model-written summary
Calcium deficiency inhibited SOD and CAT activities.
- Taxon
- Hemerocallis middendorfiit0
- Treatment
- calcium deficiencye4
- Outcome
- activities of SOD and CATe4
- Direction
- inhibitede4
Not reportedComparator
Verbatim
t0“Hemerocallis middendorfii under Osmotic Stress”
e4“calcium deficiency inhibited the activities of SOD and CAT”
Claim · model-written summary
Calcium deficiency had no significant effect on POD activity.
- Taxon
- Hemerocallis middendorfiit0
- Treatment
- calcium deficiencye5
- Outcome
- POD activitye5
- Direction
- no significant effecte5
Not reportedComparator
Verbatim
t0“Hemerocallis middendorfii under Osmotic Stress”
e5“calcium deficiency inhibited the activities of SOD and CAT,but no significant effect on POD activity”
Claim · model-written summary
Osmotic stress made chloroplasts swell and deform.
- Taxon
- Hemerocallis middendorfiit0
- Organ / stage
- chloroplaste6
- Treatment
- osmotic stresse6
- Outcome
- chloroplast swelled and deformede6
Not reportedComparatorDirection
Verbatim
t0“Hemerocallis middendorfii under Osmotic Stress”
e6“the chloroplast swelled and deformed,the osmotic stress changed the direction of stroma lamella arrangement,decreased the contents and crests of mitochondrion”
Claim · model-written summary
Osmotic stress changed the arrangement direction of stroma lamellae.
- Taxon
- Hemerocallis middendorfiit0
- Treatment
- osmotic stresse6
- Outcome
- stroma lamella arrangemente6
- Direction
- changede6
Not reportedComparator
Verbatim
t0“Hemerocallis middendorfii under Osmotic Stress”
e6“the chloroplast swelled and deformed,the osmotic stress changed the direction of stroma lamella arrangement,decreased the contents and crests of mitochondrion”
Claim · model-written summary
Osmotic stress decreased the contents and crests of mitochondria.
- Taxon
- Hemerocallis middendorfiit0
- Treatment
- osmotic stresse6
- Outcome
- contents and crests of mitochondrione6
- Direction
- decreasede6
Not reportedComparator
Verbatim
t0“Hemerocallis middendorfii under Osmotic Stress”
e6“the chloroplast swelled and deformed,the osmotic stress changed the direction of stroma lamella arrangement,decreased the contents and crests of mitochondrion”
Claim · model-written summary
Calcium treatment relieved osmotic-stress damage to chloroplasts and mitochondria.
- Taxon
- Hemerocallis middendorfiit0
- Treatment
- Ca2+ treatmente7
- Outcome
- damage to chloroplast and mitochondrione7
- Direction
- relievede7
Not reportedComparator
Verbatim
t0“Hemerocallis middendorfii under Osmotic Stress”
e7“The damage to chloroplast and mitochondrion was relieved by Ca2+ treatment”