Abstract
Salt stress is one of the environmental factors affecting plant growth and development.Brassinosteroid,a plant hormone,plays a significant role in growth and development and stress tolerance.In order to evaluate the effect of brassinosteroid on cotton under NaCl stress,exogenous brassinosteroid was applied on NaCl-stressed cotton,and the photosynthesis,root activity and antioxidant enzyme activity of two cotton cultivars(K638 and 86-1)were determined.The results showed that,under NaCl stress,cotton photosynthetic rate decreased,MDA content of cotton leaf increased,and the activities of endogenous protective enzymes(SOD,POD,CAT) declined.Exogenous brassinosteroid enhanced the antioxidant capacity of cotton leaf.Compared to NaCl stress treatment alone,SOD,POD and CAT in the cotton leaves increased in the treatment of exogenous brassinosteroid application after NaCl stress.Under NaCl stress,root activity decreased,MDA content,and the activities of SOD and CAT in cotton root increased,but exogenous brassinosteroid did not show much influence on root physiological parameters.It was indicated that exogenous brassinosteroid enhanced the resistance of cotton to NaCl stress through increasing the activity of endogenous protective enzymes in cotton leaf and alleviating the peroxidation of membrane lipid of leaf,therefore improving the photosynthesis of leaves.
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Claims 7
Claim · model-written summary
NaCl stress reduced cotton photosynthetic rate.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- NaCl stresse0
- Outcome
- photosynthetic ratee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under NaCl stress,cotton photosynthetic rate decreased”
t0“Cotton physiology affected by brassinosteroid under NaCl stress”
Claim · model-written summary
NaCl stress increased cotton leaf MDA content.
- Taxon
- cottonGossypium hirsutume0
- Organ / stage
- leafe0
- Treatment
- NaCl stresse0
- Outcome
- MDA contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under NaCl stress,cotton photosynthetic rate decreased,MDA content of cotton leaf increased”
t0“Cotton physiology affected by brassinosteroid under NaCl stress”
Claim · model-written summary
NaCl stress reduced cotton protective enzyme activities.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- NaCl stresst0
- Outcome
- activities of endogenous protective enzymes(SOD,POD,CAT)e0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the activities of endogenous protective enzymes(SOD,POD,CAT) declined”
t0“Cotton physiology affected by brassinosteroid under NaCl stress”
Claim · model-written summary
Exogenous brassinosteroid increased SOD, POD and CAT activities in salt-stressed cotton leaves.
- Taxon
- cottonGossypium hirsutume0
- Organ / stage
- leavese0
- Treatment
- exogenous brassinosteroid application after NaCl stresse0
- Outcome
- SOD,POD and CATe0
- Direction
- increasede0
- Comparator
- NaCl stress treatment alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to NaCl stress treatment alone,SOD,POD and CAT in the cotton leaves increased in the treatment of exogenous brassinosteroid application after NaCl stress.”
t0“Cotton physiology affected by brassinosteroid under NaCl stress”
Claim · model-written summary
Under NaCl stress, cotton root activity decreased.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- NaCl stresse0
- Outcome
- root activitye0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under NaCl stress,root activity decreased”
t0“Cotton physiology affected by brassinosteroid under NaCl stress”
Claim · model-written summary
Under NaCl stress, cotton root MDA content and SOD and CAT activities increased.
- Taxon
- cottonGossypium hirsutume0
- Organ / stage
- roote0
- Treatment
- NaCl stresst0
- Outcome
- MDA content,and the activities of SOD and CATe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MDA content,and the activities of SOD and CAT in cotton root increased”
t0“Cotton physiology affected by brassinosteroid under NaCl stress”
Claim · model-written summary
Exogenous brassinosteroid had little influence on cotton root physiological parameters.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- exogenous brassinosteroide0
- Outcome
- root physiological parameterse0
- Direction
- did not show much influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exogenous brassinosteroid did not show much influence on root physiological parameters”
t0“Cotton physiology affected by brassinosteroid under NaCl stress”
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See all 108 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.